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SCAS294N − JANUARY 1993 − REVISED OCTOBER 2003
D
D
D
D
Operate From 1.65 V to 3.6 V
D
D
Latch-Up Performance Exceeds 250 mA Per
JESD 17
Inputs Accept Voltages to 5.5 V
ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
Max t of 4.6 ns at 3.3 V
pd
Typical V
<0.8 V at V
(Output Ground Bounce)
OLP
CC
= 3.3 V, T = 25°C
A
D
Typical V
(Output V
Undershoot)
OHV
OH
>2 V at V
= 3.3 V, T = 25°C
CC
A
SN54LVC257A . . . J OR W PACKAGE
SN74LVC257A . . . D, DB, NS,
OR PW PACKAGE
SN74LVC257A . . . RGY PACKAGE
(TOP VIEW)
SN54LVC257A . . . FK PACKAGE
(TOP VIEW)
(TOP VIEW)
A/B
1A
V
CC
1
2
3
4
5
6
7
8
16
15
14
13
1
16
3
2
1 20 19
18
4A
4B
NC
4Y
3A
1B
1Y
NC
2A
2B
4
5
6
7
8
1A
1B
1Y
2A
2B
2Y
2
3
4
5
6
7
OE
4A
4B
OE
4A
4B
15
14
13
17
16
15
14
1B
1Y
12 4Y
2A
12 4Y
11
10
3A
3B
11
10
9
2B
3A
3B
3Y
9 10 11 12 13
2Y
8
9
GND
NC − No internal connection
description/ordering information
These quadruple 2-line to 1-line data selectors/multiplexers are designed for 1.65-V to 3.6-V V
operation.
CC
The ’LVC257A devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in
bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE) input is at
a high logic level.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
QFN − RGY
SOIC − D
Reel of 1000
Tube of 40
SN74LVC257ARGYR
SN74LVC257AD
LC257A
Reel of 2500
Reel of 250
Reel of 2000
Reel of 2000
Tube of 90
SN74LVC257ADR
SN74LVC257ADT
SN74LVC257ANSR
SN74LVC257ADBR
SN74LVC257APW
SN74LVC257APWR
SN74LVC257APWT
SNJ54LVC257AJ
SNJ54LVC257AW
SNJ54LVC257AFK
LVC257A
SOP − NS
LVC257A
LC257A
−40°C to 85°C
SSOP − DB
Reel of 2000
Reel of 250
Tube of 25
TSSOP − PW
LC257A
CDIP − J
CFP − W
LCCC − FK
SNJ54LVC257AJ
SNJ54LVC257AW
SNJ54LVC257AFK
Tube of 150
Tube of 55
−55°C to 125°C
†
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.
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Copyright 2003, Texas Instruments Incorporated
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