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參數(shù)資料
| 型號： | 74AC11257PWR |
| 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 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 309K |
| 代理商： | 74AC11257PWR |
SCAS049C MARCH 1989 REVISED MAY 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
3-State Outputs Interface Directly With
System Bus
Flow-Through Architecture Optimizes
PCB Layout
Center-Pin V
CC
and GND Configurations
Minimize High-Speed Switching Noise
500-mA Typical Latch-Up Immunity at
125
°
C
Provides Bus Interface From Multiple
Sources in High-Performance Systems
description/ordering information
This device is designed to multiplex signals from 4-bit data sources to four 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.
To ensure the high-impedance state during power up or power down, OE should be tied to V
CC
through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE MARKING
PDIP N
Tube
74AC11257N
74AC11257N
SOIC DW
Tube
74AC11257DW
AC11257
40
°
C to 85
°
C
Tape and reel
74AC11257DWR
SSOP DB
Tape and reel
74AC11257DBR
AE257
TSSOP PW
Tube
74AC11257PW
AE257
Tape and reel
74AC11257PWR
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
FUNCTION TABLE
INPUTS
OUTPUT
Y
OE
SELECT
A/B
DATA
A
B
H
X
X
X
Z
L
L
L
X
L
L
L
H
X
H
L
H
X
L
L
L
H
X
H
H
Copyright
2004, 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.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
A/B
1Y
2Y
GND
GND
GND
GND
3Y
4Y
OE
1A
1B
2A
2B
V
CC
V
CC
3A
3B
4A
4B
DB, DW, N, OR PW PACKAGE
(TOP VIEW)
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 74AC11257PWRE4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 2-to-1 Data Slct/Mltpx 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 |
| 74AC11257PWRG4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 2-Line-1-Line Data Sel/Multipl 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 |
| 74AC11258 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS |
| 74AC11273 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL D-TYPE FLIP-FLOP WITH CLEAR |
| 74AC11273DW | 制造商:Texas Instruments 功能描述: |
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