參數(shù)資料
型號(hào)： SN74LVC257ADB
廠商： Texas Instruments, Inc.
英文描述： QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS
中文描述： 四2線1線數(shù)據(jù)選擇器/多路轉(zhuǎn)換具有三態(tài)輸出
文件頁(yè)數(shù)： 1/15頁(yè)
文件大?。?/td> 539K
代理商： SN74LVC257ADB
SCAS294N JANUARY 1993 REVISED OCTOBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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)
SN74LVC257A . . . RGY PACKAGE
(TOP VIEW)
1
16
8
9
2
3
4
5
6
7
15
14
13
12
11
10
OE
4A
4B
4Y
3A
3B
1A
1B
1Y
2A
2B
2Y
A
3
V
G
C
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A/B
1A
1B
1Y
2A
2B
2Y
GND
V
CC
OE
4A
4B
4Y
3A
3B
3Y
SN54LVC257A . . . J OR W PACKAGE
SN74LVC257A . . . D, DB, NS,
OR PW PACKAGE
(TOP VIEW)
3
2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
4A
4B
NC
4Y
3A
SN54LVC257A . . . FK PACKAGE
(TOP VIEW)
1
A
N
3
3
V
O
2
G
N
C
NC No internal connection
1B
1Y
NC
2A
2B
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.
ORDERING INFORMATION
TA
PACKAGE
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
40 C to 85 C
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
55 C to 125 C
CFP W
Tube of 150
SNJ54LVC257AW
SNJ54LVC257AW
LCCC FK
Tube of 55
SNJ54LVC257AFK
SNJ54LVC257AFK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
Copyright
2003, Texas Instruments Incorporated
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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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74LVC257ADBLE 制造商:Texas Instruments 功能描述:
SN74LVC257ADBR 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Tri-State Quad Data RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SN74LVC257ADBRE4 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 2:1 Data Slctr/ Mltplxr W/3St Otp RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SN74LVC257ADBRG4 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 2Line To 1Line Data Selctr Multi RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SN74LVC257ADE4 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 2:1 Data Slctr/ Mltplxr W/3St Otp RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
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