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MC74AC377 fiches techniques PDF

ON Semiconductor - Octal D Flip-Flop

Numéro de référence MC74AC377
Description Octal D Flip-Flop
Fabricant ON Semiconductor 
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MC74AC377 fiche technique
MC74AC377, MC74ACT377
Octal D Flip-Flop with
Clock Enable
The MC74AC377/74ACT377 has eight edge-triggered, D-type
flip-flops with individual D inputs and Q outputs. The common
buffered Clock (CP) input loads all flip-flops simultaneously, when
the Clock Enable (CE) is LOW. The register is fully edge-triggered.
The state of each D input, one setup time before the LOW-to-HIGH
clock transition, is transferred to the corresponding flip-flop’s Q
output. The CE input must be stable only one setup time prior to the
LOW-to-HIGH clock transition for predictable operation.
Features
Ideal for Addressable Register Applications
Clock Enable for Address and Data Synchronization Applications
Eight Edge-Triggered D Flip-Flops
Buffered Common Clock
Outputs Source/Sink 24 mA
See MC74AC273 for Master Reset Version
See MC74AC373 for Transparent Latch Version
See MC74AC374 for 3-State Version
ACT377 Has TTL Compatible Inputs
MSL = 1 for all Surface Mount
Chip Complexity: 292 FETs or 73 Gates
These are Pb−Free Devices
www.onsemi.com
SOIC−20W
DW SUFFIX
CASE 751D
1
TSSOP−20
DT SUFFIX
CASE 948E
1
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 7 of this data sheet.
VCC O7 D7 D6 O6 O5 D5 D4 O4 CP
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
CE O0 D0 D1 O1 O2 D2 D3 O3 GND
Figure 1. Pinout: 20−Lead Packages Conductors
(Top View)
PIN NAMES
PIN
D0−D7
CE
Q0−Q7
CP
FUNCTION
Data Inputs
Clock Enable (Active LOW)
Data Outputs
Clock Pulse Input
© Semiconductor Components Industries, LLC, 2015
March, 2015 − Rev. 10
1
D0 D1 D2 D3 D4 D5 D6 D7
CP
CE
O0 O1 O2 O3 O4 O5 O6 O7
Figure 2. Logic Symbol
Publication Order Number:
MC74AC377/D

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