SN54AHC174, SN74AHC174
HEX D-TYPE FLIP-FLOPS
WITH CLEAR
SCLS425F – JUNE 1998 – REVISED FEBRUARY 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74AHC174N
SOIC – D
Tube
SN74AHC174D
AHC174
SOIC – D
Tape and reel
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
–55
°C to 125°C
CFP – W
Tube
SNJ54AHC174W
LCCC – FK
Tube
SNJ54AHC174FK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
SN54AHC174 ...J OR W PACKAGE
SN74AHC174 . . . D, DB, DGV, N, NS, OR PW PACKAGE
(TOP VIEW)
32
1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
6D
5D
NC
5Q
4D
1D
2D
NC
2Q
3D
SN54AHC174 . . . FK PACKAGE
(TOP VIEW)
1Q
CLR
NC
CLK
4Q
6Q
3Q
GND
NC
V
CC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CLR
1Q
1D
2D
2Q
3D
3Q
GND
VCC
6Q
6D
5D
5Q
4D
4Q
CLK
NC – No internal connection
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.
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.