Document
SN54LV393A, SN74LV393A DUAL 4ĆBIT BINARY COUNTERS
D 2-V to 5.5-V VCC Operation D Max tpd of 10 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 Ioff Supports Partial-Power-Down-Mode
Operation
D Dual 4-Bit Binary Counters With Individual
Clocks
D Direct Clear for Each 4-Bit Counter D Can Significantly Improve System
Densities by Reducing Counter Package Count by 50 Percent
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
The ’LV393A devices contain eight flip-flops and additional gating to implement two individual 4-bit counters in a single package. These devices are designed for 2-V to 5.5-V VCC operation.
SCLS457D − FEBRUARY 2001 − REVISED APRIL 2005
SN54LV393A . . . J OR W PACKAGE SN74LV393A . . . D, DB, DGV, NS, OR PW PACKAGE
(TOP VIEW)
1CLK 1
1CLR 2
1QA 3 1QB 4 1QC 5 1QD 6 GND 7
14 VCC 13 2CLK
12 2CLR
11 2QA 10 2QB 9 2QC 8 2QD
SN54LV393A . . . FK PACKAGE (TOP VIEW)
1CLR 1CLK NC VCC 2CLK
1QA NC
1QB NC
1QC
3 2 1 20 19
4
18
5
17
6
16
7
15
8
14
9 10 11 12 13
2CLR NC 2QA NC 2QB
1QD GND
NC 2QD 2QC
NC − No internal connection
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE PART NUMBER
TOP-SIDE MARKING
SOIC − D
Tube of 50 Reel of 2500
SN74LV393AD SN74LV393ADR
LV393A
SOP − NS
Reel of 2000 SN74LV393ANSR 74LV393A
−40°C to 85°C
SSOP − DB
Reel of 2000 Tube of 90
SN74LV393ADBR SN74LV393APW
LV393A
TSSOP − PW
Reel of 2000 Reel of 250
SN74LV393APWR SN74LV393APWT
LV393A
TVSOP − DGV Reel of 2000 SN74LV393ADGVR LV393A
CDIP − J
Tube of 25
SNJ54LV393AJ
SNJ54LV393AJ
−55°C to 125°C CFP − W
Tube of 150
SNJ54LV393AW
SNJ54LV393AW
LCCC − FK
Tube of 55
SNJ54LV393AFK
SNJ54LV393AFK
† 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 1
SN54LV393A, SN74LV393A DUAL 4ĆBIT BINARY COUNTERS
SCLS457D − FEBRUARY 2001 − REVISED APRIL 2005
description/ordering informaton (continued)
These devices comprise two independent 4-bit binary counters, each having a clear (CLR) and a clock (CLK) input. These devices change state on the negative-going transition of the CLK pulse. N-bit b.