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SCLS404E − APRIL 1998 − REVISED APRIL 2005
SN54LV161A . . . J OR W PACKAGE
SN74LV161A . . . D, DB, DGV, NS, OR PW PACKAGE
(TOP VIEW)
D
D
D
D
D
D
D
D
D
D
2-V to 5.5-V V
Operation
CC
Max t of 9.5 ns at 5 V
pd
Typical V
<0.8 V at V
(Output Ground Bounce)
OLP
CC
= 3.3 V, T = 25°C
CLR
CLK
A
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
RCO
A
Typical V
>2.3 V at V
(Output V
Undershoot)
OHV
CC
OH
Q
= 3.3 V, T = 25°C
A
A
B
C
D
Q
Q
Q
B
C
D
Support Mixed-Mode Voltage Operation on
All Ports
Internal Look-Ahead for Fast Counting
Carry Output for n-Bit Cascading
Synchronous Counting
ENP
GND
ENT
LOAD
Synchronously Programmable
SN54LV161A . . . FK PACKAGE
(TOP VIEW)
I
Supports Partial-Power-Down Mode
off
Operation
D
D
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
3
2
1 20 19
18
ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
A
B
Q
Q
4
5
6
7
8
A
B
17
16
15
14
NC
C
NC
− 1000-V Charged-Device Model (C101)
Q
Q
C
D
D
9 10 11 12 13
description/ordering information
The ’LV161A devices are 4-bit synchronous
binary counters designed for 2-V to 5.5-V V
operation.
CC
NC − No internal connection
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
Tube of 40
SN74LV161AD
SOIC − D
LV161A
Reel of 2500
Reel of 2000
Reel of 2000
Tube of 90
SN74LV161ADR
SN74LV161ANSR
SN74LV161ADBR
SN74LV161APW
SN74LV161APWR
SN74LV161APWT
SN74LV161ADGVR
SNJ54LV161AJ
SOP − NS
74LV161A
LV161A
SSOP − DB
−40°C to 85°C
Reel of 2000
Reel of 250
Reel of 2000
Tube of 25
TSSOP − PW
LV161A
TVSOP − DGV
CDIP − J
LV161A
SNJ54LV161AJ
SNJ54LV161AW
SNJ54LV161AFK
−55°C to 125°C CFP − W
Tube of 150
Tube of 55
SNJ54LV161AW
SNJ54LV161AFK
LCCC − FK
†
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.
Copyright 2005, Texas Instruments Incorporated
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1
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