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參數(shù)資料
| 型號： | SN74AS640DW |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | Analog Multiplexer/ Demultiplexer; Package: SOEIAJ-16; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2000 |
| 中文描述： | 八路總線收發(fā)器與三態(tài)輸出 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 112K |
| 代理商： | SN74AS640DW |
SN54ALS640B, SN54AS640, SN74ALS640B, SN74AS640
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SDAS122A – DECEMBER 1983 – REVISED JANUARY 1995
Copyright
1995, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Bidirectional Bus Transceivers in
High-Density 20-Pin Packages
Inverting Logic
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK), and Standard Plastic (N)
and Ceramic (J) 300-mil DIPs
description
These octal bus transceivers are designed for
asynchronous two-way communication between
data buses. These devices transmit data from the
A bus to the B bus or from the B bus to the A bus,
depending upon the level at the direction-control
(DIR) input. The output-enable (OE) input can be
used to disable the device so that the buses are
effectively isolated.
The -1 version of the SN74ALS640B is identical to
the
standard
version,
recommended maximum I
OL
for the -1 version is
increased to 48 mA. There is no -1 version of the
SN54ALS640B.
except
that
the
The SN54ALS640B and SN54AS640 are
characterized for operation over the full military
temperature range of –55
°
C to 125
°
C. The
SN74ALS640B
and
characterized for operation from 0
°
C to 70
°
C.
SN74AS640
are
FUNCTION TABLE
INPUTS
OPERATION
OE
L
DIR
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
V
CC
OE
B1
B2
B3
B4
B5
B6
B7
B8
SN54ALS640B, SN54AS640 . . . J PACKAGE
SN74ALS640B, SN74AS640 . . . DW OR N PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
B1
B2
B3
B4
B5
A3
A4
A5
A6
A7
SN54ALS640B, SN54AS640 . . . FK PACKAGE
(TOP VIEW)
A
A
D
B
B
O
A
G
B
V
C
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN54AS640FK | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN54ALS640BFK | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN74AS645DWR | Quad Analog Switch/Multiplexer/Demultiplexer; Package: SOEIAJ-14; No of Pins: 14; Container: Tape and Reel; Qty per Container: 2000 |
| SN54AS645FK | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN54ALS645AFK | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74AS640DWE4 | 功能描述:總線收發(fā)器 Octal Bus Trnscvrs With 3-State Outputs RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| SN74AS640DWG4 | 功能描述:總線收發(fā)器 Octal Bus Trancvrs RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| SN74AS640DWR | 功能描述:總線收發(fā)器 Octal Bus Trnscvrs With 3-State Outputs RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| SN74AS640DWRE4 | 功能描述:總線收發(fā)器 Octal Bus Trnscvrs With 3-State Outputs RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| SN74AS640DWRG4 | 功能描述:總線收發(fā)器 Octal Bus Trancvrs RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
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