SN74LS38 Quad 2-Input NAND Buffer VCC 14 13 12 11 10 9 * 8 * 1 2 http://onsemi.com * LOW POWER SCHOTTKY * 3 4 5 6 7 GND * OPEN COLLECTOR OUTPUTS GUARANTEED OPERATING RANGES Symbol VCC Parameter Supply Voltage Min Typ Max Unit 4.75 5.0 5.25 V 0 25 70 C TA Operating Ambient Temperature Range VOH Output Voltage - High 5.5 V IOL Output Current - Low 24 mA 14 1 PLASTIC N SUFFIX CASE 646 14 1 SOIC D SUFFIX CASE 751A ORDERING INFORMATION Device Semiconductor Components Industries, LLC, 1999 December, 1999 - Rev. 6 1 Package Shipping SN74LS38N 14 Pin DIP 2000 Units/Box SN74LS38D 14 Pin 2500/Tape & Reel Publication Order Number: SN74LS38/D SN74LS38 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter VIH Input HIGH Voltage VIL Input LOW Voltage VIK Input Clamp Diode Voltage IOH Output HIGH Current VOL O Output LOW Voltage IIH Input HIGH Current IIL Input LOW Current ICC Min Typ Max Unit Test Conditions V Guaranteed Input HIGH Voltage for All Inputs V Guaranteed Input LOW Voltage for All Inputs - 1.5 V VCC = MIN, IIN = - 18 mA 250 A VCC = MIN, VOH = MAX 0.25 0.4 V IOL = 12 mA 0.35 0.5 V IOL = 24 mA 20 A VCC = MAX, VIN = 2.4 V 2.0 0.8 - 0.65 VCC = VCC MIN, VIN = VIL or VIH per Truth Table 0.1 mA VCC = MAX, VIN = 7.0 V - 0.4 mA VCC = MAX, VIN = 0.4 V Power Supply Current Total, Output HIGH 2.0 mA VCC = MAX Total, Output LOW 12 AC CHARACTERISTICS (TA = 25C) Limits Symbol Parameter Min Typ Max Unit Test Conditions VCC = 5.0 V, RL = 667 CL = 45 pF tPLH Turn-Off Delay, Input to Output 20 32 ns tPHL Turn-On Delay, Input to Output 18 28 ns http://onsemi.com 2 SN74LS38 PACKAGE DIMENSIONS N SUFFIX PLASTIC PACKAGE CASE 646-06 ISSUE M 14 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. 8 B 1 7 A F DIM A B C D F G H J K L M N L N C -T- SEATING PLANE J K H D 14 PL G M 0.13 (0.005) 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- 8 -B- 1 P 7 PL 0.25 (0.010) 7 G M B M R X 45 _ C F -T- SEATING PLANE D 14 PL 0.25 (0.010) M T B J M K S A 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 M D SUFFIX PLASTIC SOIC PACKAGE CASE 751A-03 ISSUE F 14 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 S http://onsemi.com 3 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 SN74LS38 ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). 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