74AHC377 데이터 시트보기 (PDF) - Philips Electronics
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74AHC377 Datasheet PDF : 20 Pages
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Philips Semiconductors
Octal D-type flip-flop with data enable;
positive-edge trigger
Product specification
74AHC377; 74AHCT377
FUNCTION TABLE
See note 1.
OPERATING MODES
load “1”
load “0”
hold (do nothing)
INPUTS
E
CP
Dn
l
↑
h
l
↑
l
h
↑
X
H
X
X
Note
1. H = HIGH voltage level;
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH CP transition;
L = LOW voltage level;
I = LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition;
X = don’t care;
↑ = LOW-to-HIGH CP transition.
OUTPUTS
Qn
H
L
no change
no change
ORDERING INFORMATION
TYPE NUMBER
74AHC377D
74AHC377PW
74AHCT377D
74AHCT377PW
PINS
20
20
20
20
PACKAGES
PACKAGE
MATERIAL
SO
TSSOP
SO
TSSOP
plastic
plastic
plastic
plastic
CODE
SOT163-1
SOT360-1
SOT163-1
SOT360-1
PINNING
PIN
1
2, 5, 6, 9, 12, 15, 16 and 19
3, 4, 7, 8, 13, 14, 17 and 18
10
11
20
SYMBOL
E
Q0 to Q7
D0 to D7
GND
CP
VCC
DESCRIPTION
data enable input (active LOW)
flip-flop outputs
data inputs
ground (0 V)
clock input (LOW-to-HIGH, edge triggered)
DC supply voltage
2000 Aug 15
3
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