SN54HC374_16 Datasheet, PDF (1/23 Pages) Texas Instruments – OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS

SN54HC374, SN74HC374
OCTAL EDGEĆTRIGGERED DĆTYPE FLIPĆFLOPS
WITH 3ĆSTATE OUTPUTS
SCLS141E − DECEMBER 1982 − REVISED AUGUST 2003
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
SN54HC374 . . . J OR W PACKAGE
SN74HC374 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
D Low Power Consumption, 80-µA Max I_CC
D Typical t_pd = 14 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
SN54HC374 . . . FK PACKAGE
(TOP VIEW)
OE 1
1Q 2
1D 3
2D 4
2Q 5
3Q 6
3D 7
4D 8
4Q 9
GND 10
20 V_CC
19 8Q
18 8D
17 7D
16 7Q
15 6Q
14 6D
13 5D
12 5Q
11 CLK
2D
3 2 1 20 19
4
18
8D
2Q 5
17 7D
3Q 6
16 7Q
3D 7
15 6Q
4D 8
14 6D
9 10 11 12 13
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 of 20
SN74HC374N
SN74HC374N
SOIC − DW
Tube of 25
Reel of 2000
SN74HC374DW
SN74HC374DWR
HC374
−40°C to 85°C
SOP − NS
SSOP − DB
Reel of 2000
Reel of 2000
SN74HC374NSR
SN74HC374DBR
HC374
HC374
TSSOP − PW
Tube of 2000
Reel of 250
SN74HC374PWR
SN74HC374PWT
HC374
CDIP − J
Tube of 20
SNJ54HC374J
SNJ54HC374J
−55°C to 125°C CFP − W
Tube of 85
SNJ54HC374W
SNJ54HC374W
LCCC − FK
Tube of 55
SNJ54HC374FK
SNJ54HC374FK
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are}
available at www.ti.com/sc/package.
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2003, Texas Instruments Incorporated
On products compliant to MILĆPRFĆ38535, 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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