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參數資料
| 型號： | SN74LVC257ADT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 編、解碼器及復用、解復用 |
| 英文描述： | LVC/LCX/Z SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16 |
| 封裝： | GREEN, PLASTIC, MS-012AC, SOIC-16 |
| 文件頁數： | 1/23頁 |
| 文件大小： | 920K |
| 代理商： | SN74LVC257ADT |
www.ti.com
FEATURES
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/B
3Y
V
GND
CC
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
VCC
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)
1A
A/B
NC
3Y
3B
V
OE
2Y
GND
NC
CC
NC No internal connection
1B
1Y
NC
2A
2B
DESCRIPTION/ORDERING INFORMATION
SN54LVC257A, SN74LVC257A
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SCAS294N – JANUARY 1993 – REVISED JUNE 2005
Typical VOHV (Output VOH Undershoot)
>2 V at VCC = 3.3 V, TA = 25°C
Operate From 1.65 V to 3.6 V
Latch-Up Performance Exceeds 250 mA Per
Inputs Accept Voltages to 5.5 V
JESD 17
Max tpd of 4.6 ns at 3.3 V
ESD Protection Exceeds JESD 22
Typical VOLP (Output Ground Bounce)
– 2000-V Human-Body Model (A114-A)
<0.8 V at VCC = 3.3 V, TA = 25°C
– 200-V Machine Model (A115-A)
These quadruple 2-line to 1-line data selectors/multiplexers are designed for 1.65-V to 3.6-V VCC 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(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
–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
–55°C to 125°C
CFP – W
Tube of 150
SNJ54LVC257AW
LCCC – FK
Tube of 55
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.
Copyright 1993–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
On products compliant to MIL-PRF-38535, all parameters are
Instruments standard warranty. Production processing does not
tested unless otherwise noted. On all other products, production
necessarily include testing of all parameters.
processing does not necessarily include testing of all parameters.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SN74LVC257ADTE4 | 功能描述:編碼器、解碼器、復用器和解復用器 Quad 2:1 Data Slctr/ Mltplxr W/3St Otp RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74LVC257ADTG4 | 功能描述:編碼器、解碼器、復用器和解復用器 Quad 2Line To 1Line Data Selctr Multi RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74LVC257AMPWREP | 功能描述:編碼器、解碼器、復用器和解復用器 Mil Enhance Quad 2-1 Line Data Sel/Mult RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74LVC257ANS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| SN74LVC257ANSR | 功能描述:編碼器、解碼器、復用器和解復用器 Quad 2:1 Data Slctr/ Mltplxr W/3St Otp RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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