SN54LVC257A_10 Datasheet, PDF (1/23 Pages) Texas Instruments – QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS

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SN54LVC257A, SN74LVC257A
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SCAS294N – JANUARY 1993 – REVISED JUNE 2005
FEATURES
• Operate From 1.65 V to 3.6 V
• Inputs Accept Voltages to 5.5 V
• Max t_pd of 4.6 ns at 3.3 V
• Typical V_OLP (Output Ground Bounce)
<0.8 V at V_CC = 3.3 V, T_A = 25°C
• Typical V_OHV (Output V_OH Undershoot)
>2 V at V_CC = 3.3 V, T_A = 25°C
• Latch-Up Performance Exceeds 250 mA Per
JESD 17
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
SN54LVC257A . . . J OR W PACKAGE
SN74LVC257A . . . D, DB, NS,
OR PW PACKAGE
(TOP VIEW)
SN74LVC257A . . . RGY PACKAGE
(TOP VIEW)
SN54LVC257A . . . FK PACKAGE
(TOP VIEW)
A/B 1
1A 2
1B 3
1Y 4
2A 5
2B 6
2Y 7
GND 8
16 VCC
15 OE
14 4A
13 4B
12 4Y
11 3A
10 3B
9 3Y
1
1A 2
1B 3
1Y 4
2A 5
2B 6
2Y 7
8
16
15 OE
14 4A
13 4B
12 4Y
11 3A
10 3B
9
1B
3 2 1 20 19
4
18
4A
1Y 5
17 ^4B
NC 6
16 NC
2A 7
15 4Y
2B 8
14 3A
9 10 11 12 13
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_CC operation.
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.
T_A
–40°C to 85°C
–55°C to 125°C
ORDERING INFORMATION
PACKAGE ⁽¹⁾
ORDERABLE PART NUMBER
TOP-SIDE MARKING
QFN – RGY
Reel of 1000
SN74LVC257ARGYR
LC257A
Tube of 40
SN74LVC257AD
SOIC – D
Reel of 2500
SN74LVC257ADR
LVC257A
Reel of 250
SN74LVC257ADT
SOP – NS
Reel of 2000
SN74LVC257ANSR
LVC257A
SSOP – DB
Reel of 2000
SN74LVC257ADBR
LC257A
Tube of 90
SN74LVC257APW
TSSOP – PW
Reel of 2000
SN74LVC257APWR
LC257A
Reel of 250
SN74LVC257APWT
CDIP – J
Tube of 25
SNJ54LVC257AJ
SNJ54LVC257AJ
CFP – W
Tube of 150
SNJ54LVC257AW
SNJ54LVC257AW
LCCC – FK
Tube of 55
SNJ54LVC257AFK
SNJ54LVC257AFK
(1) 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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1993–2005, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are
tested unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.