MC74HC374AFL1 データシートの表示（PDF） - ON Semiconductor
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MC74HC374AFL1 Datasheet PDF : 8 Pages
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MC74HC374A
Octal 3-State Non-Inverting
D Flip-Flop
High–Performance Silicon–Gate CMOS
The MC74HC374A 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
FUNCTION TABLE
PIN 20 = VCC
PIN 10 = GND
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
http://onsemi.com
20
1
20
1
PDIP–20
N SUFFIX
CASE 738
SOIC WIDE–20
DW SUFFIX
CASE 751D
MARKING
DIAGRAMS
20
MC74HC374AN
AWLYYWW
1
20
HC374A
AWLYYWW
1 20
20
1
TSSOP–20
DT SUFFIX
CASE 948G
HC
374A
ALYW
1
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
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
12 Q4
GND 10
11 CLOCK
ORDERING INFORMATION
Device
Package Shipping
MC74HC374AN
PDIP–20 1440 / Box
MC74HC374ADW
SOIC–WIDE 38 / Rail
MC74HC374ADWR2 SOIC–WIDE 1000 / Reel
MC74HC374ADT
TSSOP–20 75 / Rail
MC74HC374ADTR2 TSSOP–20 2500 / Reel
© Semiconductor Components Industries, LLC, 2000
1
March, 2000 – Rev. 8
Publication Order Number:
MC74HC374A/D
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