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MC54-74HC164A Datasheet, PDF (1/9 Pages) Motorola, Inc – 8-BIT SERIAL-INPUT/PARALLEL-OUTPUT SHIFT REGISTER | |||
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
8-Bit Serial-Input/
Parallel-Output Shift Register
HighâPerformance SiliconâGate CMOS
The MC54/74HC164A is identical in pinout to the LS164. The device
inputs are compatible with standard CMOS outputs; with pullup resistors,
they are compatible with LSTTL outputs.
The MC54/74HC164A is an 8âbit, serialâinput to parallelâoutput shift
register. Two serial data inputs, A1 and A2, are provided so that one input
may be used as a data enable. Data is entered on each rising edge of the
clock. The activeâlow asynchronous Reset overrides the Clock and Serial
Data inputs.
⢠Output Drive Capability: 10 LSTTL Loads
⢠Outputs Directly Interface to CMOS, NMOS, and TTL
⢠Operating Voltage Range: 2 to 6 V
⢠Low Input Current: 1 µA
⢠High Noise Immunity Characteristic of CMOS Devices
⢠In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
⢠Chip Complexity: 244 FETs or 61 Equivalent Gates
LOGIC DIAGRAM
SERIAL A1 1
DATA
2
INPUTS A2
DATA
8
CLOCK
3
QA
4
QB
5
QC
6
QD
10
QE
11 QF
12 QG
13
QH
PARALLEL
DATA
OUTPUTS
9
RESET
PIN 14 = VCC
PIN 7 = GND
FUNCTION TABLE
Inputs
Outputs
Reset Clock A1 A2 QA QB ⦠QH
L
X X X L L â¦L
H
XX
No Change
H
H D D QAn ⦠QGn
H
D H D QAn ⦠QGn
D = data input
QAn â QGn = data shifted from the preceding
stage on a rising edge at the clock input.
MC54/74HC164A
14
1
14
1
14
1
J SUFFIX
CERAMIC PACKAGE
CASE 632â08
N SUFFIX
PLASTIC PACKAGE
CASE 646â06
D SUFFIX
SOIC PACKAGE
CASE 751Aâ03
14
1
DT SUFFIX
TSSOP PACKAGE
CASE 948Gâ01
ORDERING INFORMATION
MC54HCXXXAJ
MC74HCXXXAN
MC74HCXXXAD
MC74HCXXXADT
Ceramic
Plastic
SOIC
TSSOP
PIN ASSIGNMENT
A1 1
A2 2
QA 3
QB 4
QC 5
QD 6
GND 7
14 VCC
13 QH
12 QG
11 QF
10 QE
9 RESET
8 CLOCK
3/96
© Motorola, Inc. 1996
3â1
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