SN74LS08 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter Max Test Conditions Input HIGH Voltage Guaranteed Input HIGH Voltage fo All Inputs ut LOW Voltage Guaranteed Input LOW Voltage for All Inputs Input Clamp Diode Voltage 1.5 Vcc = MIN, IIN =-18 mA 3.5 VOH Output HIGH Voltage Vcc=MIN, IOH= MAX, VIN= VIH or ViL per Truth Table VoL Output LOW Voltage 0.5 OL=8.0 ma per Truth Table MAX, VIN=2.7 V H input HIGH Current Vcc= MAX, VIN=7.0V Input LOW Current -04 cc= MAX, VIN=0.4 V Short Circuit Current(Note 1) -100 mA Vcc=MAX Power Supply Current Total, Output HIGH Vcc= MAX otal, Output LOW Note 1: Not more than one output should be shorted at a time, nor for more than 1 second AC CHARACTERISTICS (TA=25C) Symbol Typ Max Test Conditions tPLH Turn-Off Delay, Input to Output 8.0 15 CC=5.0V tphL Turn-On Delay, Input to Output 10 20 CL=15 pF 我6 http://onsemi.com 维库 www.dzsc.comSN74LS08 http://onsemi.com 2 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter Min Typ Max Unit Test Conditions VIH Input HIGH Voltage 2.0 V Guaranteed Input HIGH Voltage for All Inputs VIL Input LOW Voltage 0.8 V Guaranteed Input LOW Voltage for All Inputs VIK Input Clamp Diode Voltage –0.65 –1.5 V VCC = MIN, IIN = –18 mA VOH Output HIGH Voltage 2.7 3.5 V VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table VOL Output LOW Voltage 0.25 0.4 V IOL = 4.0 mA VCC = VCC MIN, VOL Out ut LOW Voltage VIN = VIL or VIH 0.35 0.5 V IOL = 8.0 mA VIN = VIL or VIH per Truth Table IIH Input HIGH Current 20 µA VCC = MAX, VIN = 2.7 V IIH In ut HIGH Current 0.1 mA VCC = MAX, VIN = 7.0 V IIL Input LOW Current –0.4 mA VCC = MAX, VIN = 0.4 V IOS Short Circuit Current (Note 1) –20 –100 mA VCC = MAX Power Supply Current ICC Total, Output HIGH 4.8 mA VCC = MAX Total, Output LOW 8.8 Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS (TA = 25°C) Limits Symbol Parameter Min Typ Max Unit Test Conditions tPLH Turn–Off Delay, Input to Output 8.0 15 ns VCC = 5.0 V tPHL Turn–On Delay, Input to Output 10 20 ns CC CL = 15 pF