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HCT273

Description
Octal D Flip-Flop with Common Clock and Reset with LSTTL-Compatible Inputs
File Size81KB,5 Pages
ManufacturerMotorola ( NXP )
Websitehttps://www.nxp.com
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HCT273 Overview

Octal D Flip-Flop with Common Clock and Reset with LSTTL-Compatible Inputs

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Octal D Flip-Flop with
Common Clock and Reset
with LSTTL-Compatible Inputs
High–Performance Silicon–Gate CMOS
The MC74HCT273A may be used as a level converter for interfacing TTL
or NMOS outputs to High–Speed CMOS inputs.
The HCT273A is identical in pinout to the LS273.
This device consists of eight D flip–flops with common Clock and Reset
inputs. Each flip–flop is loaded with a low–to–high transition of the Clock
input. Reset is asynchronous and active low.
Output Drive Capability: 10 LSTTL Loads
TTL/NMOS Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0
µA
In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
Chip Complexity: 284 FETs or 71 Equivalent Gates
MC74HCT273A
N SUFFIX
PLASTIC PACKAGE
CASE 738–03
1
20
20
1
DW SUFFIX
SOIC PACKAGE
CASE 751D–04
ORDERING INFORMATION
MC74HCTXXXAN
MC74HCTXXXADW
Plastic
SOIC
PIN ASSIGNMENT
RESET
Q0
D0
D1
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VCC
Q7
D7
D6
Q6
Q5
D5
D4
Q4
CLOCK
LOGIC DIAGRAM
3
4
7
8
13
14
17
18
19
11
2
5
6
9
12
15
16
Q1
Q2
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Reset
L
H
H
H
H
NONINVERTING
OUTPUTS
D0
D1
D2
DATA
INPUTS
D3
D4
D5
D6
D7
CLOCK
D2
D3
Q3
GND
FUNCTION TABLE
Inputs
Clock
X
D
X
H
L
X
X
Output
Q
L
H
L
No Change
No Change
RESET
1
PIN 20 = VCC
PIN 10 = GND
L
X = Don’t Care
Z = High Impedance
2/97
©
Motorola, Inc. 1997
1
REV 7

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HCT273 MC74HCT273AN MC74HCT273ADW MC74HCT273A
Description Octal D Flip-Flop with Common Clock and Reset with LSTTL-Compatible Inputs Octal D Flip-Flop with Common Clock and Reset with LSTTL-Compatible Inputs Octal D Flip-Flop with Common Clock and Reset with LSTTL-Compatible Inputs Octal D Flip-Flop with Common Clock and Reset with LSTTL-Compatible Inputs
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