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SN54HC374 Datasheet(HTML) 1 Page - Texas Instruments

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Part No. SN54HC374
Description  OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54HC374 Datasheet(HTML) 1 Page - Texas Instruments

 
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SN54HC374, SN74HC374
OCTAL EDGETRIGGERED DTYPE FLIPFLOPS
WITH 3STATE OUTPUTS
SCLS141D – DECEMBER 1982 – REVISED DECEMBER 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Wide Operating Voltage Range of 2 V to 6 V
D High-Current 3-State True Outputs Can
Drive Up To 15 LSTTL Loads
D Eight D-Type Flip-Flops in a Single Package
D Full Parallel Access for Loading
D Low Power Consumption, 80-µA Max ICC
D Typical tpd = 14 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
32 1 20 19
910 11 1213
4
5
6
7
8
18
17
16
15
14
8D
7D
7Q
6Q
6D
2D
2Q
3Q
3D
4D
SN54HC374 ...FK PACKAGE
(TOP VIEW)
SN54HC374 ...J OR W PACKAGE
SN74HC374 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
VCC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
CLK
description/ordering information
These 8-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively
low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional
bus drivers, and working registers.
The eight flip-flops of the ’HC374 devices are edge-triggered D-type flip-flops. On the positive transition of the
clock (CLK) input, the Q outputs are set to the logic levels that were set up at the data (D) inputs.
An output-enable (OE) input places the eight outputs in either a normal logic state (high or low logic levels) or
the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines
significantly. The high-impedance state and increased drive provide the capability to drive bus lines without
interface or pullup components.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74HC374N
SN74HC374N
SOIC
DW
Tube
SN74HC374DW
HC374
40
°Cto85°C
SOIC – DW
Tape and reel
SN74HC374DWR
HC374
–40
°C to 85°C
SOP – NS
Tape and reel
SN74HC374NSR
HC374
SSOP – DB
Tape and reel
SN74HC374DBR
HC374
TSSOP – PW
Tape and reel
SN74HC374PWR
HC374
CDIP – J
Tube
SNJ54HC374J
SNJ54HC374J
–55
°C to 125°C
CFP – W
Tube
SNJ54HC374W
SNJ54HC374W
55 C to 125 C
LCCC – FK
Tube
SNJ54HC374FK
SNJ54HC374FK
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
 2002, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
On products compliant to MILPRF38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.


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