- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄373439 > SN54AHCT257FK (Texas Instruments, Inc.) QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS PDF資料下載
參數(shù)資料
| 型號(hào)： | SN54AHCT257FK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS |
| 中文描述： | 四2線1線數(shù)據(jù)選擇器/多路復(fù)用3態(tài)輸出 |
| 文件頁(yè)數(shù)： | 1/7頁(yè) |
| 文件大?。?/td> | 109K |
| 代理商： | SN54AHCT257FK |
SN54AHCT257, SN74AHCT257
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SCLS351E – MAY 1996 – REVISED OCTOBER 1998
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Inputs Are TTL-Voltage Compatible
EPIC
(Enhanced-Performance Implanted
CMOS) Process
Package Options Include Plastic
Small-Outline (D), Shrink Small-Outline
(DB), Thin Very Small-Outline (DGV), Thin
Shrink Small-Outline (PW), and Ceramic
Flat (W) Packages, Ceramic Chip Carriers
(FK), and Standard Plastic (N) and Ceramic
(J) DIPs
description
These
selectors/multiplexers are designed for 4.5-V to
5.5-V V
CC
operation.
The ’AHCT257 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 the high logic level.
quadruple
2-line
to
1-line
data
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.
The
operation over the full military temperature range
of –55
°
C to 125
°
C. The SN74AHCT257 is
characterized for operation from –40
°
C to 85
°
C.
SN54AHCT257
is
characterized
for
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
1998, 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.
SN54AHCT257 . . . J OR W PACKAGE
SN74AHCT257 . . . D, DB, DGV, N, OR PW PACKAGE
(TOP VIEW)
SN54AHCT257 . . . 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 |
|---|---|
| SN54AHCT257J | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS |
| SN54AHCT257W | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS |
| SN54AHCT258 | 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)) |
| SN74AHCT258 | 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)) |
| SN54AHCT573FK | 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 |
|---|---|
| SN54AHCT257J | 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 |
| SN54AHCT257W | 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 |
| SN54AHCT273 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL D-TYPE FLIP-FLOPS WITH CLEAR |
| SN54AHCT273FK | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL D-TYPE FLIP-FLOPS WITH CLEAR |
| SN54AHCT273J | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL D-TYPE FLIP-FLOPS WITH CLEAR |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。