Philips Semiconductors Product specification Quad buffer/line driver with 5-volt tolerant inputs/outputs (3-state) 74LVC126A FEATURES 5-volt tolerant inputs/outputs, for interfacing with 5-volt logic Supply voltage range of 1.2V to 3.6V Complies with JEDEC standard no, 8-1A CMOS low power consumption Direct interface with TTL levels High impedance when Voc = OV DESCRIPTION The 74LVC126A is a high performance, low-power, low-voltage Si-gate CMOS device and superior to most advanced CMOS compatible TTL families. Inputs can be driven from either 3.3V or 5.0V devices. In 3-state operation, outputs can handle 5V. The 74LVC126A consists of four non-inverting buffers/line drivers with 3-state outputs. The 3-state outputs (nY) are controlled by the output enable input (NOE). A LOW at nOE causes the outputs to assume a high impedance OFF-state. QUICK REFERENCE DATA GND = 0 V; Tamp = 25C; t, = $2.5 ns SYMBOL PARAMETER CONDITIONS TYPICAL UNIT P ation del Cy, = 50 pF; teyi/teuy nAtwoy ey Voc = 33 Vv 3.0 ns Cy input capacitance 5.0 pF Cpp Power dissipation capacitance per buffer | Voo = 3.3 V 20 pF NOTES: 1. Cpp is used to determine the dynamic power dissipation (Pp in pW) Po = Cpp x Voc? x f + 5 (CL x Vico? x fo) where: 4, = input frequency in MHz; C, = output load capacity in pF; f,. = output frequency in MHz; Voc = supply voltage in V; (CL x Voc? = fp) = sum of the outputs. 2. The condition is V; = GND to Voc ORDERING INFORMATION PACKAGES TEMPERATURE RANGE | OUTSIDE NORTH AMERICA | NORTH AMERICA PKG. DWG. # 14-Pin Plastic SO ~40C to +125C 74LVC126A D 741VC 126A D SOT 108-1 14-Pin Plastic SSOP Type II ~40C to +125C 74LVC 126A DB 74(VC126A DB SOT337-1 14-Pin Plastic TSSOP Type | ~40C to +125C T4LVC126A PW 7ALVC126APW DH SOT402-1 PIN CONFIGURATION PIN DESCRIPTION PIN : NUMBER SYMBOL NAME AND FUNCTION 1,4, 10, 13 | 10& - 40 | Data enable inputs (active HIGH) 2,5, 9, 12 1A-4A Data inputs 3, 6,8, 11 Av -4Y Data Outputs 7 GND Ground (0 V) 14 Voc Positive supply voltage 1998 Apr 28 853-2009 19310Philips Semiconductors Product specification Quad buffer/line driver with 5-volt tolerant : 74LVC126A inputs/outputs (3-state) LOGIC SYMBOL LOGIC SYMBOL (IEEEAEC) 2 ap rls ! _| > A__TAOE | Vv 3 2 5 i2A ani 6 > 3 1 EN 4 {BOE | : Vv 2 BAR, ay 8 EN 2 | ob . 5 10 6 4 Vv 12 4 9 13 9 b 8 8 Vv 10 10 EN FUNCTION TABLE yoo 1 INPUTS OUTPUT 3 [43 a nOE nA n EN H L L (a) ib) 4 svo04as . x 2 LOGIC DIAGRAM NOTES: H = HIGH voltage level nA aY L = LOW voltage fevel X = don't care Z = high impedance OFF-state nOE svo00486 RECOMMENDED OPERATING CONDITIONS . LIMITS SYMBOL PARAMETER CONDITIONS UNIT | MIN MAX v DC supply voitage (for max. speed performance) 2.7 3.6 v ec DC supply voltage (for low-voltage applications) 1.2 3.6 vi DC input voltage range 0 6.5 v v DC output voltage range; output HIGH or LOW state 0 Voc Vv DC output voltage range; output 3-State 0 5.5 Tamb Operating ambient temperature range in free-air ; -40 +85 C . , Veco = 1.2 to 2.7V 0 20 ty ty Input rise and fail times Vow ~27 to a BV 6 10 ns/V 1998 Apr 28 525Philips Semiconductors Quad buffer/line driver with 5-voit tolerant Product specification inputs/outputs (3-state) TALVOT26A ABSOLUTE MAXIMUM RATINGS! in accordance with the Absolute Maximum Rating System (IEC 134) Voltages are referenced to GND (ground = OV) SYMBOL PARAMETER CONDITIONS RATING UNIT Veco DC supply voltage ~0.5 to +6.5 Vv hk BC input diode current Vi <0 -~50 mA vy DC input voltage Note 2 ~0.5 to +6.5 v lox DC output diode current Vo >VecorVa <0 +50 mA Vo Po gutput voltage; output HIGH or Note 2 ~0.5 to Veg +0.5 y DG output voltage; output 3-State Note 2 -0.5 to 6.5 lo DC output source or sink current Vo =OtoVoc +50 mA lano, loc DC Voc or GND current +100 mA Tstg Storage temperature range 65 to +150 C Power dissipation per package Pror ~ Plastic mini-pack (80} above +70C derate linearly with 8 mW/K 500 7ES0R) shrink mini-pack (SSOP and above +60C derate linearly with 5.5 mW/K 500 mw NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions bayond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions tor extended periods may affect device reliability. 2. The input and output veltage ratings may be exceeded if the input and output current ratings are observed. DC ELECTRICAL CHARACTERISTICS Over recommended operating conditions voltages are referenced to GND (ground = OV) LIMITS SYMBOL PARAMETER TEST CONDITIONS Temp = -40C to +85C =| UNIT MIN Typ? | MAX Veco = 1.2V Veco Vin HIGH level Input voltage v Veco = 2.7 to 3.6V 20 Veo = 1.2V GND Vir LOW level Input voltage Vv Voc = 2.7 to 3.6V 08 Voc = 2.7V, Vy = Vin or Vics lo = -t2MA Voco-O.5 Voc = 3.0V; Vi = Vig or Vics lq = -100pA Voo-0.2 | Voc Vou HIGH level output voltage Vv Voc = 3.0V; V) = Vin or Vi; lo = -18MA Voc - 0.6 Voc = 3.0V; V) = Vin or Vit; lo = -24mA Voco-0.8 Voc = 2.7V; Vi= Vin or Vics fo = 12mA 0.40 Vou LOW level output voltage Veco = 3.0V; Vi = Vik Or Vic: lo = 100uA 0.20 Vv Voc = 3.0V; V) = Vin or Vy; lo = 24mA 0.55 h Input leakage current Voc = 3.6V; V) = 5.5V or GND +041 45 pA loz 3-State output OFF-state current Voc = 0.0V; Vi or Vo = 5.5V 6 BA lorr Power off leakage current Voc = 3.6V; Vi = Vin or Viti Vo = Voc or GND 0.4 +10 pA loc Quiescent supply current Voc = 3.6V; Vi = Voc or GND; Io = 0 0.1 10 nA Additional quiescent supply current . Vee 4 a Alc | per input pin Veg = 2.7V to 3.6V; V; = Ver ~0.6V; Ip = 0 5 500 | yA NOTES: 1. All typical values are at Voc = 3.3V and Tamp = 25C. 1998 Apr 28 526Philips Semiconductors Quad buffer/line driver with 5-volt tolerant Product specification . 74LVC126A inputs/outputs (3-state) AC CHARACTERISTICS GND = 0V; t, = t} = 2.5 ns; C, = 50 pF; Ay, = 5009 LIMITS SYMBOL PARAMETER WAVEFORM Vee = 3.3V 0.3V Voc = 2.7V Veo = 1.2V UNIT MIN TYP! MAX MIN MAX TYP tpHe Propagation delay . tp nA to nY Figures 1,3 15 3.2 5.5 1.5 6.5 13.0 ns tezH 3-state output enable time . 4 tpz. AOE to nY Figures 2, 3 1.5 3.9 6.3 1.5 7.3 13.0 ns tpuz 3-state output disable time . teLy nOE tony Figures 2, 3 15 4.4 6.2 1.6 7.2 10 ns NOTE: 1. These typical values are at Voc = 3.3V and Tamb = 25C, AC WAVEFORMS TEST CIRCUIT Vu = 1.5 VatVoc = 2.7V : Vu = 0.5 * Voc at Veo < 2.7 V voc ; 2* Veo Voi and Voy are the typical output voltage drop that occur with the o Open output load. | o GND Vy = Vo. + 0.3 Vat Veco 2 2.7V: Vy = VoL + 0.1: Voc at Voc < RL=500 Q 27V LSE an Vy = VoH-0.3 Vat Veo 2 2.7 Vi Vy = Von 0.1 - Voc at Veo < DUT. 2.7V Ry =500 2 ) nA INPUT GND You ny OUTPUT $vo0487 Figure 1. Input (nA). to output (nY) propagation delays. 1 Test Circuit tor 3-State Outputs SWITCH POSITION TEST | SWITCH Vec Vin teryfteHe Open < 2.7V Vec terzten | 2*Vec 2.7-3.6V| 2.7V teyz/tezH | GND DEFINITIONS FR, = Load resistor C, = Load capacitance includes jig and probe capacitance Ry = Termination resistance should be equal to Zour of pulse generators. swoo047 vy nOE INPUT GNO Voc OUTPUT LOW-to-OFF OFF-to-LOW Vou Vou OUTPUT HIGH-to-OFF OFF-t0-HIGH GND ~~ age > 77 F enabied _ outputs enabled Sv00488 Figure 2. 3-state enable and disable times. 41998 Apr 28 527 Figure 3. Load circuitry for switching times.