74LV123 Dual retriggerable monostable multivibrator with reset Rev. 8 -- 4 March 2016 Product data sheet 1. General description The 74LV123 is a low-voltage Si-gate CMOS device and is pin and function compatible with the 74HC123; 74HCT123. It is a dual retriggerable monostable multivibrator which uses three methods to control the output pulse width: 1. The basic pulse time is programmed by the selection of an external resistor (REXT) and capacitor (CEXT). These are normally connected as shown in Figure 9. 2. Once triggered, the basic output pulse width may be extended by retriggering the gated active LOW-going edge input (nA) or the active HIGH-going edge input (nB). By repeating this process, the output pulse period (nQ = HIGH, nQ = LOW) can be made as long as desired (see Figure 12). 3. Alternatively, an output delay can be terminated at any time by a LOW-going edge on input nRD, which also inhibits the triggering (see Figure 13). Schmitt-trigger action in the nA and nB inputs makes the circuit highly tolerant of slower input rise and fall times. 2. Features and benefits Optimized for low-voltage applications: 1.0 V to 5.5 V Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V Typical output ground bounce: < 0.8 V at VCC = 3.3 V and Tamb = 25 C Typical HIGH-level output voltage (VOH) undershoot: > 2 V at VCC = 3.3 V and Tamb = 25 C DC triggered from active HIGH or active LOW inputs Retriggerable for very long pulses up to 100 % duty factor Direct reset terminates output pulses Schmitt-trigger action on all inputs except for the reset input 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74LV123D 40 C to +125 C SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 74LV123DB 40 C to +125 C SSOP16 plastic shrink small outline package; 16 leads; body width SOT338-1 5.3 mm 74LV123PW 40 C to +125 C TSSOP16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm 74LV123BQ 40 C to +125 C DHVQFN16 plastic dual in-line compatible thermal enhanced very thin SOT763-1 quad flat package; no leads; 16 terminals; body 2.5 3.5 0.85 mm SOT403-1 4. Functional diagram &; 5&; &(;7 &(;7 5(;7&(;7 5(;7&(;7 5 6 4 $ $ % % 4 4 7 4 4 &; 5&; 4 5' 5' 5' 5 DDH DDH Fig 1. Logic symbol 74LV123 Product data sheet Fig 2. IEC logic symbol All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 2 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 6 $ % 5' 4 4 5' 4 4 5' 6 % 5(;7&(;7 7 $ &(;7 4 &(;7 5(;7&(;7 4 7 4 4 5' DDD Fig 3. Functional diagram 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 3 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset Q5(;7&(;7 9&& 4 5' 5 4 5 &/ 9&& &/ 9&& 5 &/ $ % Fig 4. &/ &/ DDH 5 Logic diagram 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 4 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 5. Pinning information 5.1 Pinning $ WHUPLQDO LQGH[DUHD /9 9&& /9 % 5(;7&(;7 $ 9&& 5' &(;7 % 5(;7&(;7 4 4 5' &(;7 4 4 4 4 &(;7 4 4 5(;7&(;7 &(;7 5' 5(;7&(;7 % *1' 5' $ % *1' $ 9&& DDJ 7UDQVSDUHQWWRSYLHZ DDJ (1) This is not a supply pin. The substrate is attached to this pad using conductive die attach material. There is no electrical or mechanical requirement to solder this pad. However, if it is soldered, the solder land should remain floating or be connected to VCC. Fig 5. Pin configuration for SO16 and (T)SSOP16 Fig 6. Pin configuration for DHVQFN16 5.2 Pin description Table 2. Pin description Symbol Pin Description 1A 1 negative-edge triggered input 1 1B 2 positive-edge triggered input 1 1RD 3 direct reset LOW and positive-edge triggered input 1 1Q 4 active LOW output 1 2Q 5 active HIGH output 2 2CEXT 6 external capacitor connection 2 2REXT/CEXT 7 external resistor and capacitor connection 2 GND 8 ground (0 V) 2A 9 negative-edge triggered input 2 2B 10 positive-edge triggered input 2 2RD 11 direct reset LOW and positive-edge triggered input 2 2Q 12 active LOW output 2 1Q 13 active HIGH output 1 1CEXT 14 external capacitor connection 1 1REXT/CEXT 15 external resistor and capacitor connection 1 VCC 16 supply voltage 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 5 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 6. Functional description Table 3. Function table[1] Input Output nRD nA nB nQ nQ L X X L H H[2] H[2] X H X L[2] X X L L[2] H L H H L H [1] H = HIGH voltage level; L = LOW voltage level; X = don't care; = LOW-to-HIGH transition; = HIGH-to-LOW transition; = one HIGH level output pulse = one LOW level output pulse [2] If the monostable multivibrator was triggered before this condition was established, the pulse will continue as programmed. 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 6 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 7. Limiting values Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V). Symbol Parameter VCC supply voltage Conditions Min Max Unit 0.5 +7 V IIK input clamping current VI < 0.5 V or VI > VCC + 0.5 V [1] - 20 mA IOK output clamping current VO < 0.5 V or VO > VCC + 0.5 V [1] - 50 mA except for pins nREXT/CEXT; VO = 0.5 V to (VCC + 0.5 V) [1] - 25 mA IO output current ICC supply current - +50 mA IGND ground current 50 - mA Tstg storage temperature 65 +150 C Ptot total power dissipation Tamb = 40 C to +125 C SO16 package [2] - 500 mW SSOP16 package [3] - 500 mW TSSOP16 package [3] - 500 mW DHVQFN16 package [4] - 500 mW [1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed. [2] For SO16 package: Ptot derates linearly with 8 mW/K above 70 C. [3] For SSOP16 and TSSOP16 packages: Ptot derates linearly with 5.5 mW/K above 60 C. [4] For DHVQFN16 package: Ptot derates linearly with 4.5 mW/K above 60 C. 8. Recommended operating conditions Table 5. Recommended operating conditions Symbol Parameter VCC supply voltage VI input voltage VO output voltage Tamb ambient temperature t/V Conditions [1] in free air input transition rise and fall rate VCC = 1.0 V to 2.0 V [2] VCC = 2.0 V to 2.7 V Min Typ Max Unit 1.0 3.3 5.5 V 0 - VCC V 0 - VCC V 40 +25 +125 C - - 500 ns/V - - 200 ns/V VCC = 2.7 V to 3.6 V - - 100 ns/V VCC = 3.6 V to 5.5 V - - 50 ns/V [1] The 74LV123 is guaranteed to function down to VCC = 1.0 V (input levels GND or VCC); Section 9 "Static characteristics" are guaranteed from VCC = 1.2 V to VCC = 5.5 V. [2] Except for Schmitt-trigger inputs nA and nB. 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 7 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 9. Static characteristics Table 6. Static characteristics At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions Min Typ[1] Max VCC = 1.2 V 0.9 - - V VCC = 2.0 V 1.4 - - V VCC = 2.7 V to 3.6 V 2.0 - - V VCC = 4.5 V to 5.5 V 0.7 VCC - - V VCC = 1.2 V - - 0.3 V VCC = 2.0 V - - 0.6 V VCC = 2.7 V to 3.6 V - - 0.8 V VCC = 4.5 V to 5.5 V - - 0.3 VCC V lO = 100 A; VCC = 1.2 V - 1.2 - V lO = 100 A; VCC = 2.0 V 1.8 2.0 - V lO = 100 A; VCC = 2.7 V 2.5 2.7 - V lO = 100 A; VCC = 3.0 V 2.8 3.0 - V lO = 100 A; VCC = 4.5 V 4.3 4.5 - V lO = 6 mA; VCC = 3.0 V 2.40 2.82 - V lO = 12 mA; VCC = 4.5 V 3.60 4.20 - V IO = 100 A; VCC = 1.2 V - 0 - V IO = 100 A; VCC = 2.0 V - 0 0.2 V IO = 100 A; VCC = 2.7 V - 0 0.2 V IO = 100 A; VCC = 3.0 V - 0 0.2 V IO = 100 A; VCC = 4.5 V - 0 0.2 V IO = 6 mA; VCC = 3.0 V - 0.25 0.40 V IO = 12 mA; VCC = 4.5 V - 0.35 0.55 V Unit Tamb = 40 C to +85 C VIH VIL VOH VOL HIGH-level input voltage LOW-level input voltage HIGH-level output voltage LOW-level output voltage VI = VIH or VIL VI = VIH or VIL II input leakage current VI = VCC or GND; VCC = 5.5 V - - 1.0 A ICC supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 20.0 A ICC additional supply current VI = VCC 0.6 V; VCC = 2.7 V to 3.6 V - - 500 A CI input capacitance - 3.5 - pF 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 8 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset Table 6. Static characteristics ...continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions Min Typ[1] Max VCC = 1.2 V 0.9 - - Unit Tamb = 40 C to +125 C HIGH-level input voltage VIH LOW-level input voltage VIL VOH HIGH-level output voltage LOW-level output voltage VOL V VCC = 2.0 V 1.4 - - V VCC = 2.7 V to 3.6 V 2.0 - - V VCC = 4.5 V to 5.5 V 0.7 VCC - - V VCC = 1.2 V - - 0.3 V VCC = 2.0 V - - 0.6 V VCC = 2.7 V to 3.6 V - - 0.8 V VCC = 4.5 V to 5.5 V - - 0.3 VCC V lO = 100 A; VCC = 1.2 V - - - V lO = 100 A; VCC = 2.0 V 1.8 - - V lO = 100 A; VCC = 2.7 V 2.5 - - V lO = 100 A; VCC = 3.0 V 2.8 - - V lO = 100 A; VCC = 4.5 V 4.3 - - V lO = 6 mA; VCC = 3.0 V 2.2 - - V lO = 12 mA; VCC = 4.5 V 3.5 - - V IO = 100 A; VCC = 1.2 V - - - V IO = 100 A; VCC = 2.0 V - - 0.2 V IO = 100 A; VCC = 2.7 V - - 0.2 V IO = 100 A; VCC = 3.0 V - - 0.2 V VI = VIH or VIL VI = VIH or VIL IO = 100 A; VCC = 4.5 V - - 0.2 V IO = 6 mA; VCC = 3.0 V - - 0.5 V IO = 12 mA; VCC = 4.5 V - - 0.65 V VI = VCC or GND; VCC = 5.5 V - - 1.0 A II input leakage current ICC supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 160 A ICC additional supply current VI = VCC 0.6 V; VCC = 2.7 V to 3.6 V - - 850 A [1] All typical values are measured at Tamb = 25 C. 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 9 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 10. Dynamic characteristics Table 7. Dynamic characteristics GND = 0 V; tr = tf 2.5 ns; for test circuit see Figure 8. Symbol Parameter 40 C to +85 C Conditions 40 C to +125 C Unit Min Typ[1] Max Min Max VCC = 1.2 V - 120 - - - ns VCC = 2.0 V - 40 76 - 92 ns Propagation delay; see Figure 7 tpd propagation delay nRD, nA and nB to nQ [2] VCC = 2.7 V - 30 56 - 68 ns VCC = 3.0 V to 3.6 V - 25 48 - 57 ns - 18 40 - 46 ns VCC = 4.5 V to 5.5 V [2] nRD to nQ (reset) VCC = 1.2 V - 100 - - - ns VCC = 2.0 V - 30 57 - 68 ns VCC = 2.7 V - 23 43 - 51 ns VCC = 3.0 V to 3.6 V - 20 38 - 45 ns VCC = 4.5 V to 5.5 V - 14 31 - 36 ns 30 5 - 40 - ns Inputs nA, nB and nRD; see Figure 7 tW pulse width nA = LOW VCC = 2.0 V VCC = 2.7 V 25 3.5 - 30 - ns VCC = 3.0 V to 3.6 V 20 3.0 - 25 - ns VCC = 4.5 V to 5.5 V 15 2.5 - 20 - ns VCC = 2.0 V 30 13 - 40 - ns VCC = 2.7 V 25 8 - 30 - ns VCC = 3.0 V to 3.6 V 20 7 - 25 - ns VCC = 4.5 V to 5.5 V 15 5 - 20 - ns VCC = 2.0 V 35 6 - 45 - ns VCC = 2.7 V 30 5 - 40 - ns VCC = 3.0 V to 3.6 V 25 4 - 30 - ns VCC = 4.5 V to 5.5 V 20 3 - 25 - ns VCC = 2.0 V - 70 - - - ns VCC = 2.7 V - 55 - - - ns VCC = 3.0 V to 3.6 V - 45 - - - ns VCC = 4.5 V to 5.5 V - 40 - - - ns nB = HIGH nRD = LOW; see Figure 13 trtrig retrigger time 74LV123 Product data sheet nB to nA; see Figure 12 All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 10 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset Table 7. Dynamic characteristics ...continued GND = 0 V; tr = tf 2.5 ns; for test circuit see Figure 8. Symbol Parameter 40 C to +85 C Conditions 40 C to +125 C Unit Min Typ[1] Max Min Max VCC = 2.0 V - 470 - - - ns VCC = 2.7 V - 460 - - - ns VCC = 3.0 V to 3.6 V - 450 - - - ns VCC = 4.5 V to 5.5 V - 430 - - - ns VCC = 2.0 V - 100 - - - ns VCC = 2.7 V - 90 - - - ns VCC = 3.0 V to 3.6 V - 80 - - - ns VCC = 4.5 V to 5.5 V - 70 - - - ns VCC = 1.2 V 10 - 1000 - - k VCC = 2.0 V 5 - 1000 - - k VCC = 2.7 V 3 - 1000 - - k VCC = 3.0 V to 3.6 V 2 - 1000 - - k 2 - 1000 - - k VCC = 1.2 V - - - - - pF VCC = 2.0 V - - - - - pF VCC = 2.7 V - - - - - pF VCC = 3.0 V to 3.6 V - - - - - pF VCC = 4.5 V to 5.5 V - - - - - pF - 60 - - - pF Outputs; nQ = LOW and nQ = HIGH, see Figure 7 tW pulse width CEXT = 100 nF; REXT = 10 k CEXT = 0 pF; REXT = 5 k External components REXT external resistance [3] see Figure 11 VCC = 4.5 V to 5.5 V CEXT external capacitance [3] see Figure 11 [4] Dynamic power dissipation power dissipation capacitance CPD VCC = 3.3 V; VI = GND to VCC [5] [1] All typical values are measured at Tamb = 25 C and nominal supply values (VCC = 3.3 V and 5.0 V). [2] tpd is the same as tPLH and tPHL; CEXT = 0 pF; REXT = 5 k. [3] For other REXT and CEXT combinations see Figure 11 and Section 12.1.1 "Basic timing". [4] CEXT has no limits. [5] CPD is used to determine the dynamic power dissipation (PD in W). PD = CPD VCC2 fi N + (CL VCC2 fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; (CL VCC2 fo) = sum of the outputs. 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 11 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 11. Waveforms Q%LQSXW Q$/2: 90 W: 90 Q$LQSXW Q%+,*+ W: 5(6(7 90 Q5'LQSXW W3/+ Q4RXWSXW W3/+ W: 90 W3+/ W: Q4RXWSXW W3/+ W: 90 W3+/ W3+/ W3/+ W3+/ DDH Measurement points are given in Table 8. Fig 7. Table 8. Propagation delays from inputs (nA, nB, nRD) to outputs (nQ, nQ) Measurement points VCC VM 2.7 V 1.5 V < 2.7 V 0.5 VCC 9&& 38/6( *(1(5$725 9, 92 '87 57 &/ S) 5/ N DDH Test data is given in Table 9. Definitions for test circuit: RL = Load resistance. CL = Load capacitance including jig and probe capacitance. RT = Termination resistance should be equal to Zo of the pulse generator. Fig 8. Test circuit for measuring switching times 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 12 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset Table 9. Test data Supply voltage Input Load Test VCC VI tr, tf CL RL < 2.7 V VCC 2.5 ns 50 pF 1 k tPHL, tPLH 2.7 V to 3.6 V 2.7 V 2.5 ns 50 pF 1 k tPHL, tPLH 4.5 V VCC 2.5 ns 50 pF 1 k tPHL, tPLH 12. Application information 12.1 Timing components 12.1.1 Basic timing The basic output pulse width is essentially determined by the values of the external timing components REXT and CEXT. &(;7 *1' Q&(;7 9&& Q5(;7&(;7 /9 Q$ Q% 5(;7 Q4 Q4 Q5' DDH (1) For minimum noise generation it is recommended to ground pins 6 (2CEXT) and 14 (1CEXT) externally to pin 8 (GND). Fig 9. Timing components connections If CEXT > 10 nF, the following formula is valid: tW = K REXT CEXT (typ.) where: tW = output pulse width in ns REXT = external resistor in k CEXT = external capacitor in pF K = constant: this is 0.45 for VCC = 5.0 V and 0.48 for VCC = 2.0 V (see Figure 10) The inherent test jig and pin capacitance at pin 15 and pin 7 (nREXT/CEXT) is approximately 7 pF. 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 13 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset DDH DDH W: QV . IDFWRU 5(;7 N N N N 9&& 9 &H[W S) VCC = 3.3 V and Tamb = 25 C CEXT = 10 nF; REXT = 10 k to 100 k Fig 10. Typical `K' factor as a function of VCC Fig 11. Typical output pulse width as a function of the external capacitance values 12.1.2 Retrigger timing The time to retrigger the monostable multivibrator depends on the values of REXT and CEXT. The output pulse width will only be extended when the time between the active going edges of the trigger pulses meets the minimum retrigger time. If CEXT > 10 pF, the next formula for the set-up time of a retrigger pulse is valid: at VCC = 5.0 V: trtrig = 30 + 0.19REXT CEXT0.9 + 13 REXT1.05 (typ.) at VCC = 3.0 V: trtrig = 41 + 0.15REXT CEXT0.9 1 REXT (typ.) where: trtrig = retrigger time in ns CEXT = external capacitor in pF REXT = external resistor in k Q%LQSXW W: Q$LQSXW WUWULJ W: Q4RXWSXW W: W: DDH nRD = HIGH Fig 12. Output pulse control using retrigger pulse nA 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 14 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 12.1.3 Reset timing Q%LQSXW Q5'LQSXW Q4RXWSXW W: W: DDH nA = LOW Fig 13. Output pulse control using reset input nRD 12.2 Power considerations 12.2.1 Power-up When the monostable multivibrator is powered-up, it may produce an output pulse with a pulse width defined by the values of REXT and CEXT. This output pulse can be eliminated using the RC circuit on pin nRD shown in Figure 14. 12.2.2 Power-down A large capacitor (CEXT) may cause problems when powering-down the monostable due to the energy stored in this capacitor. When a system containing this device is powered-down or a rapid decrease of VCC to zero occurs, the monostable may sustain damage, due to the capacitor discharging through the input protection diodes. To avoid this possibility, connect a damping diode DEXT (preferably a germanium or Schottky type diode) able to withstand large current surges - see Figure 14. '(;7 &(;7 5(;7 *1' Q&(;7 Q5(;7&(;7 /9 Q$ Q% 9&& Q4 Q4 Q5' 5(6(7 9&& DDH Fig 14. Power-up and power-down circuit 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 15 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 13. Package outline 62SODVWLFVPDOORXWOLQHSDFNDJHOHDGVERG\ZLGWKPP 627 ' ( $ ; F \ +( Y 0 $ = 4 $ $ $ $ SLQLQGH[ /S / H Z 0 ES GHWDLO; PP VFDOH ',0(16,216 LQFKGLPHQVLRQVDUHGHULYHGIURPWKHRULJLQDOPPGLPHQVLRQV 81,7 $ PD[ $ $ $ ES F ' ( H +( / /S 4 Y Z \ = PP LQFKHV R R 1RWH 3ODVWLFRUPHWDOSURWUXVLRQVRIPP LQFK PD[LPXPSHUVLGHDUHQRWLQFOXGHG 5()(5(1&(6 287/,1( 9(56,21 ,(& -('(& 627 ( 06 -(,7$ (8523($1 352-(&7,21 ,668('$7( Fig 15. Package outline SOT109-1 (SO16) 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 16 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 6623SODVWLFVKULQNVPDOORXWOLQHSDFNDJHOHDGVERG\ZLGWKPP ' 627 ( $ ; F \ +( Y 0 $ = 4 $ $ $ $ SLQLQGH[ /S / GHWDLO; Z 0 ES H PP VFDOH ',0(16,216 PPDUHWKHRULJLQDOGLPHQVLRQV 81,7 $ PD[ $ $ $ ES F ' ( H +( / /S 4 Y Z \ = PP R R 1RWH 3ODVWLFRUPHWDOSURWUXVLRQVRIPPPD[LPXPSHUVLGHDUHQRWLQFOXGHG 287/,1( 9(56,21 627 5()(5(1&(6 ,(& -('(& -(,7$ (8523($1 352-(&7,21 ,668('$7( 02 Fig 16. Package outline SOT338-1 (SSOP16) 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 17 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 76623SODVWLFWKLQVKULQNVPDOORXWOLQHSDFNDJHOHDGVERG\ZLGWKPP ' 627 ( $ ; F \ +( Y 0 $ = 4 $ SLQLQGH[ $ $ $ /S / H GHWDLO; Z 0 ES PP VFDOH ',0(16,216 PPDUHWKHRULJLQDOGLPHQVLRQV 81,7 $ PD[ $ $ $ ES F ' ( H +( / /S 4 Y Z \ = PP R R 1RWHV 3ODVWLFRUPHWDOSURWUXVLRQVRIPPPD[LPXPSHUVLGHDUHQRWLQFOXGHG 3ODVWLFLQWHUOHDGSURWUXVLRQVRIPPPD[LPXPSHUVLGHDUHQRWLQFOXGHG 287/,1( 9(56,21 627 5()(5(1&(6 ,(& -('(& -(,7$ (8523($1 352-(&7,21 ,668('$7( 02 Fig 17. Package outline SOT403-1 (TSSOP16) 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 18 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset '+94)1SODVWLFGXDOLQOLQHFRPSDWLEOHWKHUPDOHQKDQFHGYHU\WKLQTXDGIODWSDFNDJHQROHDGV 627 WHUPLQDOVERG\[[PP % ' $ $ $ ( F GHWDLO; WHUPLQDO LQGH[DUHD WHUPLQDO LQGH[DUHD & H H E \ \ & Y 0 & $ % Z 0 & / (K H 'K ; PP VFDOH ',0(16,216 PPDUHWKHRULJLQDOGLPHQVLRQV 81,7 PP $ PD[ $ E F ' 'K ( (K H / Y Z \ \ H 1RWH 3ODVWLFRUPHWDOSURWUXVLRQVRIPPPD[LPXPSHUVLGHDUHQRWLQFOXGHG 5()(5(1&(6 287/,1( 9(56,21 ,(& -('(& -(,7$ 627 02 (8523($1 352-(&7,21 ,668('$7( Fig 18. Package outline SOT763-1 (DHVQFN16) 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 19 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 14. Abbreviations Table 10. Abbreviations Acronym Description CMOS Complementary Metal Oxide Semiconductor DUT Device Under Test 15. Revision history Table 11. Revision history Document ID Release date Data sheet status Change notice Supersedes 74LV123 v.8 20160304 Product data sheet - 74LV123 v.7 Modifications: 74LV123 v.7 Modifications: * Type numbers 74LV123N (SOT38-4) removed. 20111212 * Product data sheet - 74LV123 v.6 Legal pages updated. 74LV123 v.6 20110826 Product data sheet - 74LV123 v.5 74LV123 v.5 20071108 Product data sheet - 74LV123 v.4 74LV123 v.4 20070919 Product specification - 74LV123 v.3 74LV123 v.3 20030313 Product specification - 74LV123 v.2 74LV123 v.2 19980420 Product specification - 74LV123 v.1 74LV123 v.1 19970204 Product specification - - 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 20 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 16. Legal information 16.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification. [1] Please consult the most recently issued document before initiating or completing a design. [2] The term `short data sheet' is explained in section "Definitions". [3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nexperia.com. 16.2 Definitions Draft -- The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. Nexperia does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet -- A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local Nexperia sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. Product specification -- The information and data provided in a Product data sheet shall define the specification of the product as agreed between Nexperia and its customer, unless Nexperia and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the Nexperia product is deemed to offer functions and qualities beyond those described in the Product data sheet. 16.3 Disclaimers Limited warranty and liability -- Information in this document is believed to be accurate and reliable. However, Nexperia does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Nexperia takes no responsibility for the content in this document if provided by an information source outside of Nexperia. In no event shall Nexperia be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, Nexperia's aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of Nexperia. Right to make changes -- Nexperia reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. 74LV123 Product data sheet Suitability for use -- Nexperia products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of a Nexperia product can reasonably be expected to result in personal injury, death or severe property or environmental damage. Nexperia and its suppliers accept no liability for inclusion and/or use of Nexperia products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. Applications -- Applications that are described herein for any of these products are for illustrative purposes only. Nexperia makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using Nexperia products, and Nexperia accepts no liability for any assistance with applications or customer product design. It is customer's sole responsibility to determine whether the Nexperia product is suitable and fit for the customer's applications and products planned, as well as for the planned application and use of customer's third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. Nexperia does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer's applications or products, or the application or use by customer's third party customer(s). Customer is responsible for doing all necessary testing for the customer's applications and products using Nexperia products in order to avoid a default of the applications and the products or of the application or use by customer's third party customer(s). Nexperia does not accept any liability in this respect. Limiting values -- Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. Terms and conditions of commercial sale -- Nexperia products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nexperia.com/profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. Nexperia hereby expressly objects to applying the customer's general terms and conditions with regard to the purchase of Nexperia products by customer. No offer to sell or license -- Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 21 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset Export control -- This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities. Non-automotive qualified products -- Unless this data sheet expressly states that this specific Nexperia product is automotive qualified, the product is not suitable for automotive use. It is neither qualified nor tested in accordance with automotive testing or application requirements. Nexperia accepts no liability for inclusion and/or use of non-automotive qualified products in automotive equipment or applications. In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without Nexperia's warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond Nexperia's specifications such use shall be solely at customer's own risk, and (c) customer fully indemnifies Nexperia for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond Nexperia's standard warranty and Nexperia's product specifications. Translations -- A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions. 16.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. 17. Contact information For more information, please visit: http://www.nexperia.com For sales office addresses, please send an email to: salesaddresses@nexperia.com 74LV123 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 8 -- 4 March 2016 (c) Nexperia B.V. 2017. All rights reserved 22 of 23 74LV123 Nexperia Dual retriggerable monostable multivibrator with reset 18. Contents 1 2 3 4 5 5.1 5.2 6 7 8 9 10 11 12 12.1 12.1.1 12.1.2 12.1.3 12.2 12.2.1 12.2.2 13 14 15 16 16.1 16.2 16.3 16.4 17 18 (c) General description . . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 5 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5 Functional description . . . . . . . . . . . . . . . . . . . 6 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 7 Recommended operating conditions. . . . . . . . 7 Static characteristics. . . . . . . . . . . . . . . . . . . . . 8 Dynamic characteristics . . . . . . . . . . . . . . . . . 10 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Application information. . . . . . . . . . . . . . . . . . 13 Timing components . . . . . . . . . . . . . . . . . . . . 13 Basic timing . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Retrigger timing . . . . . . . . . . . . . . . . . . . . . . . 14 Reset timing . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Power considerations . . . . . . . . . . . . . . . . . . . 15 Power-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Power-down . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 16 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 20 Legal information. . . . . . . . . . . . . . . . . . . . . . . 21 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 21 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Contact information. . . . . . . . . . . . . . . . . . . . . 22 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Nexperia B.V. 2017. All rights reserved For more information, please visit: http://www.nexperia.com For sales office addresses, please send an email to: salesaddresses@nexperia.com Date of release: 04 March 2016