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参数资料
| 型号： | MC74AC640DWR2 |
| 厂商： | MOTOROLA INC |
| 元件分类： | 总线收发器 |
| 英文描述： | AC SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO20 |
| 封装： | PLASTIC, SOIC-20 |
| 文件页数： | 1/6页 |
| 文件大小： | 174K |
| 代理商： | MC74AC640DWR2 |
5-1
FACT DATA
Octal Bidirectional Transceiver
with 3State Outputs
The MC74AC640/74ACT640 octal bus transceiver is designed for asynchronous
two-way communication between data buses. The device transmits data from bus A
to bus B when T/R = HIGH, or from bus B to bus A when T/R = LOW. The enable
input can be used to disable the device so the buses are effectively isolated.
Bidirectional Data Path
A and B Outputs Sink 24 mA/Source –24 mA
′ACT640 Has TTL Compatible Inputs
19
20
18
16
15
14
2
1
3
4
5
6
7
VCC
13
8
12
9
11
10
OE
B0
B1
B2
B3
B4
B5
B6
B7
T/R
A0
A1
A2
A3
A4
A5
A6
A7
GND
17
PIN NAMES
A0–A7
Side A Inputs or 3-State Outputs
OE
Output Enable Input
T/R
Transmit/Receive Input
B0–B7
Side B Inputs or 3-State Outputs
TRUTH TABLE
OE
T/R
Applied
Inputs
Valid
Direction
I/P
→O/P
Output
H
X
L
H
A to B
L
H
L
A to B
H
L
H
B to A
L
B to A
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
MC74AC640
MC74ACT640
OCTAL BIDIRECTIONAL
TRANSCEIVER WITH
3-STATE OUTPUTS
N SUFFIX
CASE 738-03
PLASTIC
DW SUFFIX
CASE 751D-04
PLASTIC
相关PDF资料 |
PDF描述 |
|---|---|
| MC74AC640DW | AC SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO20 |
| MC74AC646DWCR2 | AC SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24 |
| MC74AC74DC | AC SERIES, DUAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO14 |
| MC74AC74NC | AC SERIES, DUAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, PDIP14 |
| MC74ACT74NC | ACT SERIES, DUAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, PDIP14 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC74AC640N | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:ON Semiconductor 功能描述: |
| MC74AC643 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE OUTPUTS |
| MC74AC643DW | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE OUTPUTS |
| MC74AC643N | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE OUTPUTS |
| MC74AC646 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Octal Transceiver/Register with 3−State Outputs (Non−inverting) |
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