M74HC688
DESCRIPTION
PIN No
SYMBOL NAME AND FUNCTION
1 G Enable Input (Active LOW)
2, 4, 6, 8, 11, P0 to P7 Word Inputs 13, 15, 17
3, 5, 7, 9, 12, Q0 to Q7 Word Outputs 14, 16, 18
19 P = Q Equal to Output
10 GND Ground (0V)
20 VCC Positive Supply Voltage t(s)TRUTH TABLE te Produc X: Don’t Care
P, Q
P=Q P <> Q
Obsolete Product(s)
- Obsole LOGIC DIAGRAM
INPUTS
OUTPUT
P=Q L H H
This logic diagram has not be used to estimate propagation delays
2/9
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC Supply Voltage
-0.5 to +7
VI DC Input Voltage
-0.5 to VCC + 0.5
VO DC Output Voltage
-0.5 to VCC + 0.5
IIK DC Input Diode Current
± 20 m A
IOK DC Output Diode Current
± 20 m A
IO DC Output Current
± 25 m...
