74HC377 查看數據表（PDF） - NXP Semiconductors.
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74HC377 Datasheet PDF : 18 Pages
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Nexperia
5. Pinning information
5.1 Pinning
74HC377; 74HCT377
Octal D-type flip-flop with data enable; positive-edge trigger
Fig 5. Pin configuration
(
4
'
'
4
4
'
'
4
*1'
9&&
4
'
'
4
4
'
'
4
&3
PQD
5.2 Pin description
Table 2. Pin description
Symbol
E
Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7
D0, D1, D2, D3, D4, D5, D6, D7
GND
CP
VCC
Pin
1
2, 5, 6, 9, 12, 15, 16, 19
3, 4, 7, 8, 13, 14, 17, 18
10
11
20
6. Functional description
Description
data enable input (active LOW)
flip-flop output
data input
ground (0 V)
clock input (LOW-to-HIGH, edge triggered)
supply voltage
Table 3. Function table[1]
Operating modes
Inputs
CP
E
Dn
load “1”
l
h
load “0”
l
l
hold (do nothing)
-
h
X
X
H
X
[1] H = HIGH voltage level;
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH clock transition;
L = LOW voltage level;
l = LOW voltage level one set-up time prior to the LOW-to-HIGH clock transition;
X = don’t care;
= LOW-to-HIGH clock transition.
Outputs
Qn
H
L
no change
no change
74HC_HCT377
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 24 February 2016
© Nexperia B.V. 2017. All rights reserved
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