4-BIT SYNCHRONOUS BINARY COUNTER
SN54LV161A, SN74LV161A 4ĆBIT SYNCHRONOUS BINARY COUNTERS
SCLS404F − APRIL 1998 − REVISED DECEMBER 2005
D 2-V to 5.5-V ...
Description
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)
CLK CLR NC VCC RCO
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
ENP GND
NC LOAD
ENT
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 ...
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