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參數(shù)資料
| 型號： | DM74ALS1240AWMX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Dual 4-Bit Inverting Buffer/Driver |
| 中文描述： | ALS SERIES, DUAL 4-BIT DRIVER, INVERTED OUTPUT, PDSO20 |
| 封裝： | 0.300 INCH, MS-013, SOIC-20 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 39K |
| 代理商： | DM74ALS1240AWMX |
2000 Fairchild Semiconductor Corporation
DS006261
www.fairchildsemi.com
September 1986
Revised February 2000
D
DM74ALS1240A
Octal 3-STATE Bus Driver
General Description
These octal 3-STATE bus drivers are designed to provide
the designer with flexibility in implementing a bus interface
with memory, microprocessor, or communication systems,
and are low power dissipation versions of the
DM74ALS240A and DM74ALS241A. The output 3-STATE
gating control is organized into two separate groups of four
buffers. The DM74ALS1240A control inputs symmetrically
enable the respective outputs when set logic LOW. The 3-
STATE circuitry contains a feature that maintains the buffer
outputs in 3-STATE (high impedance state) during power
supply ramp-up or ramp-down. This eliminates bus glitch-
ing problems that arise during power-up and power-down.
Features
I
Advanced oxide-isolated, ion-implanted Schottky TTL
process
I
Switching response specified into 500
and 50 pF load
I
Switching response specifications guaranteed over full
temperature and V
CC
supply range
I
PNP input design reduces input loading
I
Low power dissipation version
I
Low level drive current: 74ALS
=
16 mA
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
H
=
HIGH Level Logic State
L
=
LOW Level Logic State
X
=
Don't Care (Either LOW or HIGH Level Logic State)
Z
=
High Impedance (OFF) State
Logic Diagram
Order Number
DM74ALS1240AWM
Package Number
M20B
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
Input
Output
G
L
L
H
A
L
H
X
Y
H
L
Z
相關PDF資料 |
PDF描述 |
|---|---|
| DM74ALS125 | Quad 3-STATE Buffer |
| DM74ALS125M | Quad 3-STATE Buffer |
| DM74ALS125N | Quad 3-STATE Buffer |
| DM74ALS125MX | 4-Bit Buffer/Driver |
| DM74ALS133 | 13-Input NAND Gate |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DM74ALS1240J/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual 4-Bit Inverting Buffer/Driver |
| DM74ALS1240N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual 4-Bit Inverting Buffer/Driver |
| DM74ALS1240N/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual 4-Bit Inverting Buffer/Driver |
| DM74ALS1240N/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual 4-Bit Inverting Buffer/Driver |
| DM74ALS1240WM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual 4-Bit Inverting Buffer/Driver |
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