E	1  •	20	Vcc
P0	2	19	P=Q
Q0	3	18	Q7
P1	4	17	P7
Q1	5	16	Q6
P2	6	15	P6
Q2	7	14	Q5
P3	8	13	P5
Q3	9	12	Q4
GND	10	11	P4

Pin	Symbol	Description
1	E	enable (active low)
2	P0	word input
3	Q0	word input
4	P1	word input
5	Q1	word input
6	P2	word input
7	Q2	word input
8	P3	word input
9	Q3	word input
10	GND	ground
11	P4	word input
12	Q4	word input
13	P5	word input
14	Q5	word input
15	P6	word input
16	Q6	word input
17	P7	word input
18	Q7	word input
19	P=Q	equal-to output (low when P = Q)
20	Vcc	supply voltage

Specifications
(typical values under recommended operating conditions, unless specified)

Parameter	Value	Unit
Propagation delay, Pn , Qn to P=Q	17 (74HC/HCT)	ns
Propagation delay, E to P=Q	8 (74HC) 12 (74HCT)	ns