Page 25 - EE2449_TTL_Datasheet

SN54/74LS86

DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol Parameter Min Typ Max Unit Test Conditions
Guaranteed Input HIGH Voltage for
V IH Input HIGH Voltage 2.0 V
All Inputs
54 0.7 Guaranteed Input LOW Voltage for
g
Input LOW Voltage
V Inp u t LOW V oltage V V All Inputs
V IL IL
74 0.8
V IK Input Clamp Diode Voltage –0.65 –1.5 V V CC = MIN, I IN = –18 mA
54 2.5 3.5 V V CC = MIN, I OH = MAX, V IN = V IH IH
OH
IN
CC
t
tp
u
HIGH

V
u
O
V OH
V OH Output HIGH Voltageoltage or V IL per Truth Table
74 2.7 3.5 V
54, 74 0.25 0.4 V I OL = 4.0 mA V CC = V CC MIN,
LOW
V
oltage

O
u
tp
u

t
V IN =V IL or V IHIN = V IL or V IH
V OL
V OL Output LOW Voltage V
74 0.35 0.5 V I OL = 8.0 mA per Truth Table
40 mA V CC = MAX, V IN = 2.7 V
I I IHIH Inp u t HIGH C u rrent
Input HIGH Current
0.2 mA V CC = MAX, V IN = 7.0 V
I IL Input LOW Current –0.8 mA V CC = MAX, V IN = 0.4 V
I OS Short Circuit Current (Note 1) –20 –100 mA V CC = MAX
I CC Power Supply Current 10 mA V CC = MAX
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS (T A = 25°C)
Limits
Symbol Parameter Min Typ Max Unit Test Conditions
t PLH Propagation Delay, 12 23 ns
t PHL Other Input LOW 10 17
V CC = 5.0 V
CC
C L = 15 pF
t PLH Propagation Delay, 20 30 ns
t PHL Other Input HIGH 13 22

FAST AND LS TTL DATA
5-88
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