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| 型號： | DM74ALS640 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Inverting Octal Bus Transceiver |
| 中文描述： | 反相八路總線收發(fā)器 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 48K |
| 代理商： | DM74ALS640 |
2000 Fairchild Semiconductor Corporation
DS008640
www.fairchildsemi.com
August 1985
Revised February 2000
D
DM74ALS640A
Inverting Octal Bus Transceiver
General Description
This inverting octal bus transceiver is designed for asyn-
chronous two-way communication between data busses.
This device transmits 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 enable input (G) can be
used to disable the device so the busses are effectively
isolated.
Features
I
Advanced Oxide-isolated Ion-implanted Schottky TTL
process
I
Switching performance is guaranteed over full tempera-
ture and V
CC
supply range
I
Switching performance specified at 50 pF
I
PNP input design reduces input loading
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Logic Diagram
Function Table
L
=
LOW Logic Level
H
=
HIGH Logic Level
X
=
Either LOW or HIGH Logic Level
Order Number
DM74ALS640AWM
DM74ALS640AN
Package Number
M20B
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Control
Inputs
Operation
G
DIR
L
L
B Data to A Bus
L
H
A Data to B Bus
H
X
Isolation
相關(guān)PDF資料 |
PDF描述 |
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| DM74ALS640AWM | AM-220 Series Digital Multimeter; DMM Type:Handheld; No. of Digits/Alpha:3-1/2; DMM Response Type:Average; Series:AM-220; Calibrated:No; Capacitance Measuring Range:40 nF - 4000 uF; Current Measuring Range:400uA to 10A RoHS Compliant: NA |
| DM74ALS640AN | Inverting Octal Bus Transceiver |
| DM74ALS640AWMX | Single 8-Bit Inverting Bus Transceiver |
| DM74ALS645A | Octal Bus Transceivers(八總線收發(fā)器) |
| DM74ALS645AWM | Octal Bus Transceivers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74ALS640AN | 功能描述:總線收發(fā)器 Inv Octal Bus Trans 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 |
| DM74ALS640AN_Q | 功能描述:總線收發(fā)器 Inv Octal Bus Trans 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 |
| DM74ALS640AWM | 功能描述:總線收發(fā)器 Inv Octal Bus Trans 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 |
| DM74ALS640AWM_Q | 功能描述:總線收發(fā)器 Inv Octal Bus Trans 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 |
| DM74ALS640AWMX | 功能描述:總線收發(fā)器 Inv Octal Bus Trans 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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