SN54AHC174 Datasheet, PDF (1/7 Pages) Texas Instruments – HEX D-TYPE FLIP-FLOPS WITH CLEAR

D EPIC™ (Enhanced-Performance Implanted
CMOS) Process
D Operating Range 2-V to 5.5-V V_CC
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)
D Package Options Include Plastic
Small-Outline (D), Shrink Small-Outline
(DB), Thin Very Small-Outline (DGV), Thin
Shrink Small-Outline (PW), and Ceramic
Flat (W) Packages, Ceramic Chip Carriers
(FK), and Standard Plastic (N) and Ceramic
(J) DIPs
description
SN54AHC174, SN74AHC174
HEX D-TYPE FLIP-FLOPS
WITH CLEAR
SCLS425E – JUNE 1998 – REVISED JANUARY 2000
SN54AHC174 . . . J OR W PACKAGE
SN74AHC174 . . . D, DB, DGV, N, OR PW PACKAGE
(TOP VIEW)
CLR 1
1Q 2
1D 3
2D 4
2Q 5
3D 6
3Q 7
GND 8
16 V_CC
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
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 V_CC operation.
NC – No internal connection
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.
The SN54AHC174 is characterized for operation over the full military temperature range of –55°C to 125°C. The
SN74AHC174 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
(each flip-flop)
INPUTS
CLR CLK D
OUTPUT
Q
L
X
X
L
H
↑
H
H
H
↑
L
L
H
L
X
Q0
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.
EPIC is a trademark of Texas Instruments Incorporated.
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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