MC74ACT377 Motorola, MC74ACT377 Datasheet

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MC74ACT377

Manufacturer Part Number
MC74ACT377
Description
OCTAL D FLIP-FLOP
Manufacturer
Motorola
Datasheet

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Part Number:
MC74ACT377N
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ON/安森美
Quantity:
20 000
Octal D Flip Flop
with Clock Enable
individual D inputs and Q outputs. The common buffered Clock (CP) input loads
all flip-flops simultaneously, when the Clock Enable (CE) is LOW.
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.
PIN NAMES
D 0 –D 7
CE
Q 0 –Q 7
CP
MODE SELECT-FUNCTION TABLE
Load 1
Load 0
Hold (Do Nothing)
Hold (Do Nothing)
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
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
V CC
ACT377 Has TTL Compatible Inputs
The MC74AC377/74ACT377 has eight edge-triggered, D-type flip-flops with
The register is fully edge-triggered. The state of each D input, one setup time
= LOW-to-HIGH Clock Transition
CE
20
1
Operating Mode
Operating Mode
O 7
O 0
19
Data Inputs
Clock Enable (Active LOW)
Data Outputs
Clock Pulse Input
2
D 7
D 0
18
3
D 6
D 1
17
4
CP
O 6
O 1
16
X
5
Inputs
CE
O 5
O 2
15
H
H
6
L
L
D 5
14
D 2
D n
7
H
L
X
X
D 4
D 3
13
8
No Change
No Change
Outputs
O 4
O 3
12
9
Q n
H
L
GND
CP
10
11
FACT DATA
www.DataSheet4U.com
5-1
MC74ACT377
MC74AC377
CP
CE
D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
O 0 O 1 O 2 O 3 O 4 O 5 O 6 O 7
FLIP-FLOP WITH
CLOCK ENABLE
LOGIC SYMBOL
CASE 751D-04
CASE 738-03
DW SUFFIX
OCTAL D
N SUFFIX
PLASTIC
PLASTIC

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MC74ACT377 Summary of contents

Page 1

... GND Outputs Change No Change FACT DATA 5-1 MC74AC377 MC74ACT377 OCTAL D FLIP-FLOP WITH CLOCK ENABLE N SUFFIX CASE 738-03 PLASTIC DW SUFFIX CASE 751D-04 PLASTIC LOGIC SYMBOL ...

Page 2

... MC74AC377 MC74ACT377 Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. MAXIMUM RATINGS* Symbol Supply Voltage (Referenced to GND Input Voltage (Referenced to GND) ...

Page 3

... MC74AC377 MC74ACT377 DC CHARACTERISTICS Symbol Symbol Parameter Parameter V IH Minimum High Level Input Voltage Input Voltage V IL Maximum Low Level Input Voltage Input Voltage V OH Minimum High Level Output Voltage Output Voltage V OL Maximum Low Level Output Voltage Output Voltage I IN Maximum Input ...

Page 4

... MC74AC377 MC74ACT377 AC OPERATING REQUIREMENTS Symbol Symbol Parameter Parameter Setup Time, HIGH or LOW Hold Time, HIGH or LOW Setup Time, HIGH or LOW Hold Time, HIGH or LOW Pulse Width ...

Page 5

... MC74AC377 MC74ACT377 AC CHARACTERISTICS (For Figures and Waveforms — See Section 3) Symbol Symbol Parameter Parameter Maximum Clock f max f max Frequency Frequency Propagation Delay t PLH t PLH Propagation Delay t PHL t PHL Voltage Range 5 5 OPERATING REQUIREMENTS ...

Page 6

... MC74AC377 MC74ACT377 –A– –T– SEATING PLANE –A– –B– 20X 0.010 (0.25 18X K Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “ ...

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