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SN54AHC174_07 Datasheet, PDF (1/18 Pages) Texas Instruments – HEX D-TYPE FLIP-FLOPS WITH CLEAR
D Operating Range 2-V to 5.5-V VCC
D Contain Six Flip-Flops With Single-Rail
Outputs
D Applications Include:
– Buffer/Storage Registers
– Shift Registers
– Pattern Generators
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
D ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
description
The ’AHC174 devices are positive-edge-triggered
D-type flip-flops with a direct clear (CLR) input and
are designed for 2-V to 5.5-V VCC operation.
Information at the data (D) inputs that meets the
setup time requirements is transferred to the
outputs on the positive-going edge of the clock
(CLK) pulse. Clock triggering occurs at a
particular voltage level and is not directly related
to the transition time of the positive-going edge of
CLK. When CLK is at either the high or low level,
the D input has no effect at the output.
SN54AHC174, SN74AHC174
HEX D-TYPE FLIP-FLOPS
WITH CLEAR
SCLS425F – JUNE 1998 – REVISED FEBRUARY 2002
SN54AHC174 . . . J OR W PACKAGE
SN74AHC174 . . . D, DB, DGV, N, NS, OR PW PACKAGE
(TOP VIEW)
CLR 1
1Q 2
1D 3
2D 4
2Q 5
3D 6
3Q 7
GND 8
16 VCC
15 6Q
14 6D
13 5D
12 5Q
11 4D
10 4Q
9 CLK
SN54AHC174 . . . FK PACKAGE
(TOP VIEW)
3 2 1 20 19
1D 4
18 6D
2D 5
17 5D
NC 6
16 NC
2Q 7
15 5Q
3D 8
14 4D
9 10 11 12 13
NC – No internal connection
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74AHC174N
SN74AHC174N
SOIC – D
Tube
Tape and reel
SN74AHC174D
SN74AHC174DR
AHC174
–40°C to 85°C
SOP – NS
Tube
SN74AHC174NSR
AHC174
SSOP – DB
Tape and reel SN74AHC174DBR
HA174
TSSOP – PW
Tape and reel SN74AHC174PWR
HA174
TVSOP – DGV
Tape and reel SN74AHC174DGVR
HA174
CDIP – J
Tube
SNJ54AHC174J
SNJ54AHC174J
–55°C to 125°C CFP – W
Tube
SNJ54AHC174W
SNJ54AHC174W
LCCC – FK
Tube
SNJ54AHC174FK
SNJ54AHC174FK
† 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.
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
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Copyright  2002, Texas Instruments Incorporated
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