SN74LS125A, SN74LS126A Quad 3-State Buffers VCC E D O E D O 14 13 12 11 10 9 8 http://onsemi.com 1 2 3 E D O 4 5 6 7 E D O GND LOW POWER SCHOTTKY LS125A VCC E D O E D O 14 13 12 11 10 9 8 PLASTIC N SUFFIX CASE 646 14 1 14 1 2 3 4 5 6 7 E D O E D O GND 1 LS126A TRUTH TABLES LS126A INPUTS 1 INPUTS E D OUTPUT E D OUTPUT L L H L H X L H (Z) H H L L H X L H (Z) ORDERING INFORMATION Device L = LOW Voltage Level H = HIGH Voltage Level X = Don't Care (Z) = High Impedance (off) GUARANTEED OPERATING RANGES Symbol VCC SOEIAJ M SUFFIX CASE 965 14 LS125A SOIC D SUFFIX CASE 751A Parameter Supply Voltage Min Typ Max Unit 4.75 5.0 5.25 V 0 25 70 C Package Shipping SN74LS125AN 14 Pin DIP 2000 Units/Box SN74LS125AD SOIC-14 55 Units/Rail SN74LS125ADR2 SOIC-14 2500/Tape & Reel SN74LS125AM SOEIAJ-14 See Note 1 SN74LS125AMEL SOEIAJ-14 See Note 1 SN74LS126AN 14 Pin DIP 2000 Units/Box SN74LS126AD SOIC-14 55 Units/Rail SOIC-14 2500/Tape & Reel TA Operating Ambient Temperature Range IOH Output Current - High -2.6 mA SN74LS126ADR2 IOL Output Current - Low 24 mA SN74LS126AM SOEIAJ-14 See Note 1 SN74LS126AMEL SOEIAJ-14 See Note 1 1. For ordering information on the EIAJ version of the SOIC package, please contact your local ON Semiconductor representative. Semiconductor Components Industries, LLC, 2001 October, 2001 - Rev. 7 1 Publication Order Number: SN74LS125A/D SN74LS125A, SN74LS126A DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Min Parameter VIH Input HIGH Voltage VIL Input LOW Voltage VIK Input Clamp Diode Voltage VOH Output HIGH Voltage VOL Output LOW Voltage IOZH Typ Max 2.0 0.8 -0.65 -1.5 2.4 Unit Test Conditions V Guaranteed Input HIGH Voltage for All Inputs V Guaranteed Input LOW Voltage for All Inputs V VCC = MIN, IIN = -18 mA V VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table VCC = VCC MIN, VIN = VIL or VIH per Truth Table 0.25 0.4 V IOL = 12 mA 0.35 0.5 V IOL = 24 mA Output Off Current HIGH 20 A VCC = MAX, VOUT = 2.4 V IOZL Output Off Current LOW -20 A VCC = MAX, VOUT = 0.4 V IIH Input HIGH Current IIL Input LOW Current IOS Short Circuit Current (Note 2) ICC Power Supply Current -40 LS125A 20 A VCC = MAX, VIN = 2.7 V 0.1 mA VCC = MAX, VIN = 7.0 V -0.4 mA VCC = MAX, VIN = 0.4 V -225 mA VCC = MAX mA VCC = MAX 20 LS126A 22 VIN = 0 V, VE = 4.5 V VIN = 0 V, VE = 0 V 2. Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS (TA = 25C) Limits Symbol tPLH tPLH tPHL Min Typ Max LS125A 9.0 15 LS126A 9.0 15 LS125A 7.0 18 LS126A 8.0 18 Parameter Propagation Pro agation Delay, Data to Output tPHL Unit ns Out ut Enable Time Output to HIGH Level LS125A 12 20 tPZH LS126A 16 25 Out ut Enable Time Output to LOW Level LS125A 15 25 tPZL LS126A 21 35 Out ut Disable Time Output from HIGH Level LS125A 20 tPHZ LS126A 25 Out ut Disable Time Output from LOW Level LS125A 20 tPLZ LS126A 25 http://onsemi.com 2 Test Conditions Figure 2 ns Figures 4, 4 5 ns Figures 3, 3 5 ns Figures 4, 4 5 ns FIgures 3, 3 5 VCC = 5.0 V CL = 45 pF RL = 667 VCC = 5.0 V CL = 5 5.0 0 pF RL = 667 SN74LS125A, SN74LS126A VIN VOUT 1.3 V VIN 1.3 V 1.3 V 1.3 V tPHL tPLH tPHL 1.3 V 1.3 V VOUT 1.3 V Figure 1. 1.3 V Figure 2. VE VE 1.3 V 1.3 V VE 1.3 V VE tPZL VOUT tPLH tPLZ tPZH 1.3 V 1.3 V 1.3 V > VOH 1.3 V 1.3 V VOUT VOL tPHZ 0.5 V 0.5 V Figure 3. Figure 4. VCC RL SW1 TO OUTPUT UNDER TEST 5 k SW2 CL Figure 5. SWITCH POSITIONS SYMBOL SW1 SW2 tPZH Open Closed tPZL Closed Open tPLZ Closed Closed tPHZ Closed Closed http://onsemi.com 3 SN74LS125A, SN74LS126A PACKAGE DIMENSIONS N SUFFIX PLASTIC PACKAGE CASE 646-06 ISSUE M 14 8 1 7 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. B A F L N C -T- SEATING PLANE K H G J D 14 PL 0.13 (0.005) M M http://onsemi.com 4 DIM A B C D F G H J K L M N INCHES MIN MAX 0.715 0.770 0.240 0.260 0.145 0.185 0.015 0.021 0.040 0.070 0.100 BSC 0.052 0.095 0.008 0.015 0.115 0.135 0.290 0.310 --10 0.015 0.039 MILLIMETERS MIN MAX 18.16 18.80 6.10 6.60 3.69 4.69 0.38 0.53 1.02 1.78 2.54 BSC 1.32 2.41 0.20 0.38 2.92 3.43 7.37 7.87 --10 0.38 1.01 SN74LS125A, SN74LS126A PACKAGE DIMENSIONS D SUFFIX PLASTIC SOIC PACKAGE CASE 751A-03 ISSUE F NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. -A- 14 8 -B- 1 P 7 PL 0.25 (0.010) 7 G M B M F R X 45 C -T- SEATING PLANE D 14 PL 0.25 (0.010) M T B J M K S A S http://onsemi.com 5 DIM A B C D F G J K M P R MILLIMETERS MIN MAX 8.55 8.75 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0 7 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.337 0.344 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0 7 0.228 0.244 0.010 0.019 SN74LS125A, SN74LS126A PACKAGE DIMENSIONS M SUFFIX SOEIAJ PACKAGE CASE 965-01 ISSUE O 14 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS AND ARE MEASURED AT THE PARTING LINE. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 5. THE LEAD WIDTH DIMENSION (b) DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE LEAD WIDTH DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSIONS AND ADJACENT LEAD TO BE 0.46 ( 0.018). LE 8 Q1 E HE L 7 1 M DETAIL P Z D VIEW P A e c A1 b 0.13 (0.005) M 0.10 (0.004) http://onsemi.com 6 DIM A A1 b c D E e HE 0.50 LE M Q1 Z MILLIMETERS MIN MAX --2.05 0.05 0.20 0.35 0.50 0.18 0.27 9.90 10.50 5.10 5.45 1.27 BSC 7.40 8.20 0.50 0.85 1.10 1.50 10 0 0.70 0.90 --1.42 INCHES MIN MAX --0.081 0.002 0.008 0.014 0.020 0.007 0.011 0.390 0.413 0.201 0.215 0.050 BSC 0.291 0.323 0.020 0.033 0.043 0.059 10 0 0.028 0.035 --0.056 SN74LS125A, SN74LS126A Notes http://onsemi.com 7 SN74LS125A, SN74LS126A ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). 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