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HD74HC377 Datasheet(PDF) 1 Page - Hitachi Semiconductor

Part No. HD74HC377
Description  Octal D-type Flip-Flops (with Enable)
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Maker  HITACHI [Hitachi Semiconductor]
Homepage  http://www.renesas.com/eng
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HD74HC377
Octal D-type Flip-Flops (with Enable)
Description
Information at the D inputs meeting the setup time requirements is transferred to the Q outputs on the
positive-going edge of the clock pulse if the enable input
G is low. Clock triggering occurs at a particular
voltage level and is not directly related to the transition time of the positive-going pulse. When the clock
input is at either the high or low level, the D input signal has no effect at the output. The circuits are
designed to prevent false clocking by transitions at the
G input.
Features
• High Speed Operation: t
pd = 13 ns typ (CL = 50 pF)
• High Output Current: Fanout of 10 LSTTL Loads
• Wide Operating Voltage: V
CC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: I
CC (static) = 4 µA max (Ta = 25°C)
Function Table
Inputs
Outputs
Enable
G
Clock
Data
Q
Q
HX
X
Q
0
Q
0
L
HH
L
L
LL
H
X
LXQ
0
Q
0




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