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參數(shù)資料
| 型號(hào)： | SN54AHC257 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Quadruple 2-Line To 1-Line Data Selectors/Multiplexers(四2選1數(shù)據(jù)選擇器(三態(tài)輸出)) |
| 中文描述： | 四2線1線數(shù)據(jù)選擇器/多路轉(zhuǎn)換器（四2選1數(shù)據(jù)選擇器（三態(tài)輸出）） |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 193K |
| 代理商： | SN54AHC257 |
SN54AHC257, SN74AHC257
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SCLS349B – MAY 1996 – REVISED JUNE 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Operating Range 2-V to 5.5-V V
CC
EPIC
(Enhanced-Performance Implanted
CMOS) Process
Package Options Include Plastic
Small-Outline (D), Shrink Small-Outline
(DB), Thin Shrink Small-Outline (PW), and
Ceramic Flat (W) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
description
These
selectors/multiplexers are designed for 2-V to
5.5-V V
CC
operation.
The ’AHC257 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.
quadruple
2-line
to
1-line
data
The SN54AHC257 is characterized for operation
over the full military temperature range of –55
°
C
to 125
°
C. The SN74AHC257 is characterized for
operation from –40
°
C to 85
°
C.
FUNCTION TABLE
INPUTS
OUTPUT
Y
OE
H
A/B
A
B
X
X
X
Z
L
L
L
X
L
L
L
H
X
H
L
H
X
L
L
L
H
X
H
H
P
Copyright
1997, Texas Instruments Incorporated
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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.
EPIC is a trademark of Texas Instruments Incorporated.
SN54AHC257 . . . J OR W PACKAGE
SN74AHC257 . . . D, DB, N, OR PW PACKAGE
(TOP VIEW)
SN54AHC257 . . . FK PACKAGE
(TOP VIEW)
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
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
1B
1Y
NC
2A
2B
1
A
N
3
3
V
O
2
G
N
C
NC – No internal connection
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN74AHC257 | Quadruple 2-Line To 1-Line Data Selectors/Multiplexers(四2選1數(shù)據(jù)選擇器(三態(tài)輸出)) |
| SN54AHC258 | Quadruple 2-Line To 1-Line Data Selectors/Multiplexers(四2選1數(shù)據(jù)選擇器(三態(tài)輸出)) |
| SN74AHC258 | Quadruple 2-Line To 1-Line Data Selectors/Multiplexers(四2選1數(shù)據(jù)選擇器(三態(tài)輸出)) |
| SN54AHC373FK | OCTAL TRANSPARENT D-TYPE LATCHES WITH 3-STATE OUTPUTS |
| SN54AHC373J | OCTAL TRANSPARENT D-TYPE LATCHES WITH 3-STATE OUTPUTS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN54AHC257FK | 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS |
| SN54AHC257J | 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS |
| SN54AHC257W | 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS |
| SN54AHC273 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL D-TYPE FLIP-FLOPS WITH CLEAR |
| SN54AHC273_08 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL D-TYPE FLIP-FLOPS WITH CLEAR |
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