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SN54LV161A_08 Datasheet, PDF (1/22 Pages) Texas Instruments – 4-BIT SYNCHRONOUS BINARY COUNTERS
SN54LV161A, SN74LV161A
4ĆBIT SYNCHRONOUS BINARY COUNTERS
SCLS404F − APRIL 1998 − REVISED DECEMBER 2005
D 2-V to 5.5-V VCC Operation
D Max tpd of 9.5 ns at 5 V
D Typical VOLP (Output Ground Bounce)
<0.8 V at VCC = 3.3 V, TA = 25°C
D Typical VOHV (Output VOH Undershoot)
>2.3 V at VCC = 3.3 V, TA = 25°C
D Support Mixed-Mode Voltage Operation on
All Ports
D Internal Look-Ahead for Fast Counting
D Carry Output for n-Bit Cascading
D Synchronous Counting
D Synchronously Programmable
D Ioff Supports Partial-Power-Down Mode
Operation
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
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/ordering information
SN54LV161A . . . J OR W PACKAGE
SN74LV161A . . . D, DB, DGV, NS, OR PW PACKAGE
(TOP VIEW)
CLR 1
CLK 2
A3
B4
C5
D6
ENP 7
GND 8
16 VCC
15 RCO
14 QA
13 QB
12 QC
11 QD
10 ENT
9 LOAD
SN54LV161A . . . FK PACKAGE
(TOP VIEW)
3 2 1 20 19
A4
18 QA
B5
17 QB
NC 6
16 NC
C7
15 QC
D
8
14
9 10 11 12 13
QD
The ’LV161A devices are 4-bit synchronous
binary counters designed for 2-V to 5.5-V VCC
operation.
NC − No internal connection
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC − D
Tube of 40
Reel of 2500
SN74LV161AD
SN74LV161ADR
LV161A
SOP − NS
Reel of 2000 SN74LV161ANSR
74LV161A
SSOP − DB
−40°C to 85°C
Reel of 2000
Tube of 90
SN74LV161ADBR
SN74LV161APW
LV161A
TSSOP − PW
Reel of 2000
Reel of 250
SN74LV161APWR
SN74LV161APWT
LV161A
TVSOP − DGV Reel of 2000 SN74LV161ADGVR
LV161A
CDIP − J
Tube of 25
SNJ54LV161AJ
SNJ54LV161AJ
−55°C to 125°C CFP − W
Tube of 150 SNJ54LV161AW
SNJ54LV161AW
LCCC − FK
Tube of 55
SNJ54LV161AFK
SNJ54LV161AFK
† 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  2005, Texas Instruments Incorporated
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