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MC54-74HC374A Datasheet, PDF (1/8 Pages) Motorola, Inc – Octal 3-State Non-Inverting D Flip-Flop
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Octal 3-State
Non-Inverting D Flip-Flop
High–Performance Silicon–Gate CMOS
The MC54/74HC374A is identical in pinout to the LS374. The device
inputs are compatible with standard CMOS outputs; with pullup resistors,
they are compatible with LSTTL outputs.
Data meeting the setup time is clocked to the outputs with the rising edge
of the clock. The Output Enable input does not affect the states of the
flip–flops, but when Output Enable is high, the outputs are forced to the
high–impedance state; thus, data may be stored even when the outputs are
not enabled.
The HC374A is identical in function to the HC574A which has the input
pins on the opposite side of the package from the output. This device is
similar in function to the HC534A which has inverting outputs.
• Output Drive Capability: 15 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
• Chip Complexity: 266 FETs or 66.5 Equivalent Gates
LOGIC DIAGRAM
DATA
INPUTS
D0 3
D1 4
D2 7
D3 8
D4 13
D5 14
D6 17
D7 18
CLOCK 11
2 Q0
5 Q1
6 Q2
9 Q3
12 Q4
15 Q5
16 Q6
19 Q7
NONINVERTING
OUTPUTS
OUTPUT ENABLE 1
PIN 20 = VCC
PIN 10 = GND
FUNCTION TABLE
Output
Enable
L
L
L
H
Inputs
Clock
L,H,
X
Output
D
Q
H
H
L
L
X No Change
X
Z
X = don’t care
Z = high impedance
8/96
© Motorola, Inc. 1996
3–1
MC54/74HC374A
20
1
J SUFFIX
CERAMIC PACKAGE
CASE 732–03
20
1
20
1
N SUFFIX
PLASTIC PACKAGE
CASE 738–03
DW SUFFIX
SOIC PACKAGE
CASE 751D–04
20
1
SD SUFFIX
SSOP PACKAGE
CASE 940C–03
20
1
DT SUFFIX
TSSOP PACKAGE
CASE 948E–02
ORDERING INFORMATION
MC54HCXXXAJ
Ceramic
MC74HCXXXAN
Plastic
MC74HCXXXADW SOIC
MC74HCXXXASD SSOP
MC74HCXXXADT
TSSOP
PIN ASSIGNMENT
OUTPUT
ENABLE
1
Q0 2
20 VCC
19 Q7
D0 3
18 D7
D1 4
17 D6
Q1 5
16 Q6
Q2 6
15 Q5
D2 7
14 D5
D3 8
13 D4
Q3 9
GND 10
12 Q4
11 CLOCK
REV 7
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