74AHC244; 74AHCT244 Octal buffer/line driver; 3-state Rev. 6 -- 2 July 2020 Product data sheet 1. General description The 74AHC244; 74AHCT244 is an 8-bit buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Inputs are overvoltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments. 2. Features and benefits * * * * * * * * * * * Wide supply voltage range from 2.0 V to 5.5 V Balanced propagation delays All inputs have Schmitt-trigger action Overvoltage tolerant inputs to 5.5 V High noise immunity CMOS low power dissipation Input levels: * For 74AHC244: CMOS level * For 74AHCT244: TTL level ESD protection: * HBM JESD22-A114F exceeds 2000 V * MM JESD22-A115-A exceeds 200 V * CDM JESD22-C101E exceeds 1000 V Latch-up performance exceeds 100 mA per JESD 78 Class II Level A Multiple package options Specified from -40 C to +85 C and from -40 C to +125 C 3. Ordering information Table 1. Ordering information Type number Package 74AHC244D Temperature range Name Description Version -40 C to +125 C SO20 plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 -40 C to +125 C TSSOP20 plastic thin shrink small outline package; 20 leads; body width 4.4 mm SOT360-1 -40 C to +125 C DHVQFN20 plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 20 terminals; body 2.5 x 4.5 x 0.85 mm 74AHCT244D 74AHC244PW 74AHCT244PW 74AHC244BQ 74AHCT244BQ SOT764-1 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state 4. Functional diagram 2 4 6 8 1 17 15 13 11 19 1A0 1Y0 1A1 1Y1 1A2 1Y2 1A3 1Y3 18 16 14 12 1OE 2A0 2Y0 2A1 2Y1 2A2 2Y2 2A3 2Y3 3 5 7 9 2OE mna170 Fig. 1. Functional diagram 1 1A0 1A1 1A2 1A3 1OE 2 4 6 8 18 16 14 12 1 1Y0 2A0 1Y1 2A1 1Y2 2A2 1Y3 2A3 2OE 17 15 13 11 3 5 7 9 2Y0 2Y1 2 18 4 16 6 14 8 12 19 2Y2 2Y3 19 EN EN 11 9 13 7 15 5 17 3 mna874 Fig. 2. Logic symbol 74AHC_AHCT244 Product data sheet mna873 Fig. 3. IEC logic symbol All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 2 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state 5. Pinning information 5.1. Pinning 1 terminal 1 index area 1 1A0 2 20 VCC 19 2OE 2Y0 3 18 1Y0 1A1 4 17 2A0 2Y1 5 16 1Y1 1A2 6 15 2A1 2Y2 7 14 1Y2 1A3 8 13 2A2 2Y3 9 12 1Y3 GND 10 11 2A3 19 2OE 2Y0 3 18 1Y0 1A1 4 17 2A0 2Y1 5 16 1Y1 1A2 6 15 2A1 2Y2 7 1A3 8 2Y3 9 14 1Y2 GND(1) 13 2A2 12 1Y3 001aah079 Transparent top view (1) This is not a ground pin. There is no electrical or mechanical requirement to solder the pad. In case soldered, the solder land should remain floating or connected to GND. 001aae258 Fig. 4. 2 2A3 11 1OE 1A0 GND 10 74AHC244 74AHCT244 20 VCC 1OE 74AHC244 74AHCT244 Pin configuration SOT163-1 (SO20) and SOT360-1 (TSSOP20) Fig. 5. Pin configuration SOT764-1 (DHVQFN20) 5.2. Pin description Table 2. Pin description Symbol Pin Description 1OE, 2OE 1, 19 output enable input (active LOW) 1A0, 1A1, 1A2, 1A3 2, 4, 6, 8 data input 2A0, 2A1, 2A2, 2A3 17, 15, 13, 11 data input 1Y0, 1Y1, 1Y2, 1Y3 18, 16, 14, 12 data output 2Y0, 2Y1, 2Y2, 2Y3 3, 5, 7, 9 data output GND 10 ground (0 V) VCC 20 supply voltage 6. Functional description Table 3. Function table H = HIGH voltage level; L = LOW voltage level; X = don't care; Z = high-impedance OFF-state. Control Input Output nOE nAn nYn L L L H H X Z H 74AHC_AHCT244 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 3 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state 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 Min Max Unit supply voltage -0.5 +7.0 V VI input voltage -0.5 +7.0 V IIK input clamping current VI < -0.5 V [1] -20 - mA IOK output clamping current VO < -0.5 V or VO > VCC + 0.5 V [1] - 20 mA IO output current VO = -0.5 V to VCC + 0.5 V - 25 mA ICC supply current - 75 mA IGND ground current -75 - mA Tstg storage temperature -65 +150 C Ptot total power dissipation - 500 mW [1] [2] Conditions Tamb = -40 C to +125 C [2] The input and output voltage ratings may be exceeded if the input and output current ratings are observed. For SOT163-1 (SO20) package: Ptot derates linearly with 12.3 mW/K above 109 C. For SOT360-1 (TSSOP20) package: Ptot derates linearly with 10.0 mW/K above 100 C. For SOT764-1 (DHVQFN20) package: Ptot derates linearly with 12.9 mW/K above 111 C. 8. Recommended operating conditions Table 5. Recommended operating conditions Voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions 74AHC244 VCC supply voltage VI input voltage VO output voltage Tamb ambient temperature t/V input transition rise and VCC = 3.3 V 0.3 V fall rate VCC = 5.0 V 0.5 V 74AHC_AHCT244 Product data sheet 74AHCT244 Unit Min Typ Max Min Typ Max 2.0 5.0 5.5 4.5 5.0 5.5 V 0 - 5.5 0 - 5.5 V 0 - VCC 0 - VCC V -40 +25 +125 -40 +25 +125 C - - 100 - - - ns/V - - 20 - - 20 ns/V All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 4 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state 9. Static characteristics Table 6. Static characteristics Voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions 25 C -40 C to +85 C -40 C to +125 C Unit Min Typ Max Min Max Min Max VCC = 2.0 V 1.5 - - 1.5 - 1.5 - V VCC = 3.0 V 2.1 - - 2.1 - 2.1 - V VCC = 5.5 V 3.85 - - 3.85 - 3.85 - V VCC = 2.0 V - - 0.5 - 0.5 - 0.5 V VCC = 3.0 V - - 0.9 - 0.9 - 0.9 V 74AHC244 VIH VIL VOH VOL HIGH-level input voltage LOW-level input voltage VCC = 5.5 V - - 1.65 - 1.65 - 1.65 V VI = VIH or VIL HIGH-level output voltage IO = -50 A; VCC = 2.0 V 1.9 2.0 - 1.9 - 1.9 - V IO = -50 A; VCC = 3.0 V 2.9 3.0 - 2.9 - 2.9 - V IO = -50 A; VCC = 4.5 V 4.4 4.5 - 4.4 - 4.4 - V IO = -4.0 mA; VCC = 3.0 V 2.58 - - 2.48 - 2.40 - V IO = -8.0 mA; VCC = 4.5 V 3.94 - - 3.8 - 3.70 - V VI = VIH or VIL LOW-level output voltage IO = 50 A; VCC = 2.0 V - 0 0.1 - 0.1 - 0.1 V IO = 50 A; VCC = 3.0 V - 0 0.1 - 0.1 - 0.1 V IO = 50 A; VCC = 4.5 V - 0 0.1 - 0.1 - 0.1 V IO = 4.0 mA; VCC = 3.0 V - - 0.36 - 0.44 - 0.55 V IO = 8.0 mA; VCC = 4.5 V - - 0.36 - 0.44 - 0.55 V IOZ OFF-state VI = VIH or VIL; output current VO = VCC or GND; VCC = 5.5 V - - 0.25 - 2.5 - 10.0 A II input leakage current - - 0.1 - 1.0 - 2.0 A ICC supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 4.0 - 40 - 80 A CI input capacitance - 3.0 10 - 10 - 10 pF CO output capacitance - 4.0 - - - - - pF 74AHC_AHCT244 Product data sheet VI = 5.5 V or GND; VCC = 0 V to 5.5 V All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 5 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state Symbol Parameter Conditions 25 C -40 C to +85 C -40 C to +125 C Unit Min Typ Max Min Max Min Max 74AHCT244 VIH HIGH-level input voltage VCC = 4.5 V to 5.5 V 2.0 - - 2.0 - 2.0 - V VIL LOW-level input voltage VCC = 4.5 V to 5.5 V - - 0.8 - 0.8 - 0.8 V VOH VI = VIH or VIL; VCC = 4.5 V HIGH-level output voltage IO = -50 A 4.4 4.5 - 4.4 - 4.4 - V 3.94 - - 3.8 - 3.70 - V - 0 0.1 - 0.1 - 0.1 V IO = -8.0 mA VOL VI = VIH or VIL; VCC = 4.5 V LOW-level output voltage IO = 50 A - - 0.36 - 0.44 - 0.55 V IOZ OFF-state VI = VIH or VIL; output current VO = VCC or GND; VCC = 5.5 V IO = 8.0 mA - - 0.25 - 2.5 - 10.0 A II input leakage current - - 0.1 - 1.0 - 2.0 A ICC supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 4.0 - 40 - 80 A ICC additional per input pin; VI = VCC - 2.1 V; supply current IO = 0 A; other pins at VCC or GND; VCC = 4.5 V to 5.5 V - - 1.35 - 1.5 - 1.5 mA CI input capacitance - 3 10 - 10 - 10 pF CO output capacitance - 4.0 - - - - - pF 74AHC_AHCT244 Product data sheet VI = 5.5 V or GND; VCC = 0 V to 5.5 V All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 6 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state 10. Dynamic characteristics Table 7. Dynamic characteristics GND = 0 V. For test circuit see Fig. 8. Symbol Parameter Conditions 25 C Min -40 C to +85 C Typ[1] Max -40 C to +125 C Unit Min Max Min Max 74AHC244 tpd propagation delay nAn to nYn; see Fig. 6 [2] VCC = 3.0 V to 3.6 V CL = 15 pF - 5.0 8.4 1.0 10.0 1.0 10.5 ns CL = 50 pF - 7.0 11.9 1.0 13.5 1.0 15.0 ns - 3.4 5.5 1.0 6.5 1.0 7.0 ns 5.0 7.5 1.0 8.5 1.0 9.5 ns VCC = 4.5 V to 5.5 V CL = 15 pF CL = 50 pF ten enable time nOE to nYn; see Fig. 7 [2] VCC = 3.0 V to 3.6 V CL = 15 pF - 6.5 10.6 1.0 12.5 1.0 13.5 ns CL = 50 pF - 7.5 14.1 1.0 16.0 1.0 18.0 ns CL = 15 pF - 4.0 7.3 1.0 8.5 1.0 9.5 ns CL = 50 pF - 5.5 9.3 1.0 10.5 1.0 12.0 ns CL = 15 pF - 5.5 9.7 1.0 11.0 1.0 12.5 ns CL = 50 pF - 10.0 14.0 1.0 16.0 1.0 17.5 ns - 4.8 7.2 1.0 8.5 1.0 9.0 ns - 7.0 9.2 1.0 10.5 1.0 11.5 ns - 10 - - - - - pF VCC = 4.5 V to 5.5 V tdis disable time nOE to nYn; see Fig. 7 [2] VCC = 3.0 V to 3.6 V VCC = 4.5 V to 5.5 V CL = 15 pF CL = 50 pF CPD power CL = 50 pF; fi = 1 MHz; dissipation VI = GND to VCC capacitance 74AHC_AHCT244 Product data sheet [3] All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 7 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state Symbol Parameter Conditions 25 C Min -40 C to +85 C Typ[1] Max -40 C to +125 C Unit Min Max Min Max 74AHCT244 tpd propagation delay ten enable time nAn to nYn; see Fig. 6 [2] VCC = 4.5 V to 5.5 V CL = 15 pF - 3.5 7.4 1.0 8.5 1.0 9.5 ns CL = 50 pF - 5.0 8.4 1.0 9.5 1.0 10.5 ns CL = 15 pF - 3.5 10.4 1.0 12.0 1.0 13.0 ns CL = 50 pF - 5.5 11.4 1.0 13.0 1.0 14.5 ns CL = 15 pF - 5.0 9.4 1.0 10.0 1.0 12.0 ns CL = 50 pF - 7.0 11.4 1.0 13.0 1.0 14.5 ns - 12 - - - - - pF nOE to nYn; see Fig. 7 VCC = 4.5 V to 5.5 V disable time nOE to nYn; see Fig. 7 tdis [2] VCC = 4.5 V to 5.5 V CPD [1] [2] [3] power CL = 50 pF; fi = 1 MHz; dissipation VI = GND to VCC capacitance [3] Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V). tpd is the same as tPLH and tPHL. ten is the same as tPZL and tPZH. tdis is the same as tPLZ and tPHZ. CPD is used to determine the dynamic power dissipation PD (W). 2 2 PD = CPD x VCC x fi + (CL x VCC x fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in Volts. 74AHC_AHCT244 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 8 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state 10.1. Waveforms and test circuit VI nAn input VM VM GND tPLH tPHL VOH VM nYn output VM VOL mna171 Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig. 6. Propagation delay input (nAn) to output (nYn) VI nOE input VM GND t PLZ nYn output LOW-to-OFF OFF-to-LOW t PZL VCC VM VX VOL t PZH t PHZ nYn output HIGH-to-OFF OFF-to-HIGH VOH VY VM GND outputs enabled outputs disabled outputs enabled 001aae014 Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig. 7. Enable and disable times Table 8. Measurement points Input Type Output VM VM VX VY 74AHC244 0.5VCC 0.5VCC VOL + 0.3 V VOH - 0.3 V 74AHCT244 1.5 V 0.5VCC VOL + 0.3 V VOH - 0.3 V 74AHC_AHCT244 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 9 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state VI negative pulse tW 90 % VM 0V VI positive pulse 0V VM 10 % tf tr tr tf 90 % VM VM 10 % tW VCC VI G DUT VCC VO RT RL S1 open CL 001aad983 Test data is given in Table 9. Definitions test circuit: RT = Termination resistance should be equal to output impedance Zo of the pulse generator CL = Load capacitance including jig and probe capacitance RL = Load resistance S1 = Test selection switch Fig. 8. Test circuit for measuring switching times Table 9. Test data Type Input Load S1 position VI tr, tf CL RL tPHL, tPLH tPZH, tPHZ tPZL, tPLZ 74AHC244 VCC 3.0 ns 15 pF, 50 pF 1 k open GND VCC 74AHCT244 3.0 V 3.0 ns 15 pF, 50 pF 1 k open GND VCC 74AHC_AHCT244 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 10 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state 11. Package outline SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 D E A X c y HE v M A Z 20 11 Q A2 A (A 3 ) A1 pin 1 index Lp L 1 10 e bp detail X w M 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y mm 2.65 0.3 0.1 2.45 2.25 0.25 0.49 0.36 0.32 0.23 13.0 12.6 7.6 7.4 1.27 10.65 10.00 1.4 1.1 0.4 1.1 1.0 0.25 0.25 0.1 0.9 0.4 inches 0.1 0.012 0.096 0.004 0.089 0.01 0.019 0.013 0.014 0.009 0.51 0.49 0.30 0.29 0.05 0.419 0.043 0.055 0.394 0.016 0.043 0.039 0.01 0.01 0.004 0.035 0.016 Z (1) o 8 o 0 Note 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. Fig. 9. REFERENCES OUTLINE VERSION IEC JEDEC SOT163-1 075E04 MS-013 JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 Package outline SOT163-1 (SO20) 74AHC_AHCT244 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 11 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm D SOT360-1 E A X c HE y v M A Z 11 20 Q A2 pin 1 index (A 3 ) A1 A Lp 1 L 10 detail X w M bp e 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) mm 1.1 0.15 0.05 0.95 0.80 0.25 0.30 0.19 0.2 0.1 6.6 6.4 4.5 4.3 0.65 6.6 6.2 1 0.75 0.50 0.4 0.3 0.2 0.13 0.1 0.5 0.2 8o 0o Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT360-1 REFERENCES IEC JEDEC JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 MO-153 Fig. 10. Package outline SOT360-1 (TSSOP20) 74AHC_AHCT244 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 12 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state DHVQFN20: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 20 terminals; body 2.5 x 4.5 x 0.85 mm B D SOT764-1 A A A1 E c detail X terminal 1 index area terminal 1 index area e1 C e b 2 9 v w C A B C y1 C y L 1 10 Eh e 20 11 19 12 X Dh 0 2.5 5 mm scale Dimensions (mm are the original dimensions) Unit mm A(1) A1 b max 1.00 0.05 0.30 nom 0.90 0.02 0.25 min 0.80 0.00 0.18 c D(1) Dh E(1) Eh e e1 L v 0.2 4.6 4.5 4.4 3.15 3.00 2.85 2.6 2.5 2.4 1.15 1.00 0.85 0.5 3.5 0.5 0.4 0.3 0.1 w y 0.05 0.05 y1 0.1 Note 1. Plastic or metal protrusions of 0.075 mm maximum per side are not included. References Outline version IEC JEDEC JEITA SOT764-1 --- MO-241 --- sot764-1_po European projection Issue date 03-01-27 14-12-12 Fig. 11. Package outline SOT764-1 (DHVQFN20) 74AHC_AHCT244 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 13 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state 12. Abbreviations Table 10. Abbreviations Acronym Description CDM Charge Device Model CMOS Complementary Metal Oxide Semiconductor DUT Device Under Test ESD ElectroStatic Discharge HBM Human Body Model MM Machine Model TTL Transistor-Transistor Logic 13. Revision history Table 11. Revision history Document ID Release date Data sheet status Change notice Supersedes 74AHC_AHCT244 v.6 20200702 Product data sheet - 74AHC_AHCT244 v.5 Modifications: * * * * * * The format of this data sheet has been redesigned to comply with the identity guidelines of Nexperia. Legal texts have been adapted to the new company name where appropriate. Section 1 and Section 2 updated. Table 4: Derating values for Ptot total power dissipation have been updated. Table 6: Conditions for IOZ corrected. Package outline drawing of SOT764-1 (Fig. 11) updated. 74AHC_AHCT244 v.5 20071220 Modifications: * * * * * Product data sheet - 74AHC_AHCT244 v.4 The format of this data sheet has been redesigned to comply with the new identity guidelines of NXP Semiconductors. Legal texts have been adapted to the new company name where appropriate. Section 3: DHVQFN20 package added. Section 7: derating values added for DHVQFN20 package. Section 11: outline drawing added for DHVQFN20 package. 74AHC_AHCT244 v.4 20060210 Product data sheet - 74AHC_AHCT244 v.3 74AHC_AHCT244 v.3 19990928 Product specification - 74AHC_AHCT244 v.2 74AHC_AHCT244 v.2 19990224 Product specification - 74AHC_AHCT244 v.1 74AHC_AHCT244 v.1 19980921 Product specification - - 74AHC_AHCT244 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 14 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state 14. 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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. Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 15 / 16 74AHC244; 74AHCT244 Nexperia Octal buffer/line driver; 3-state Contents 1. General description...................................................... 1 2. Features and benefits.................................................. 1 3. Ordering information....................................................1 4. Functional diagram.......................................................2 5. Pinning information......................................................3 5.1. Pinning.........................................................................3 5.2. Pin description............................................................. 3 6. Functional description................................................. 3 7. Limiting values............................................................. 4 8. Recommended operating conditions..........................4 9. Static characteristics....................................................5 10. Dynamic characteristics............................................ 7 10.1. Waveforms and test circuit........................................ 9 11. Package outline........................................................ 11 12. Abbreviations............................................................ 14 13. Revision history........................................................14 14. Legal information......................................................15 (c) Nexperia B.V. 2020. 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: 2 July 2020 74AHC_AHCT244 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 -- 2 July 2020 (c) Nexperia B.V. 2020. All rights reserved 16 / 16