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MC74AC245DWG

更新时间： 2024-01-17 05:00:04
品牌 Logo 应用领域
安森美 - ONSEMI 逻辑集成电路光电二极管输出元件
页数 文件大小 规格书
10页 112K
描述
Octal Bidirectional Transceiver with 3−State Inputs/Outputs

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MC74AC245DWG 数据手册

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MC74AC245, MC74ACT245  
Octal Bidirectional  
Transceiver with 3−State  
Inputs/Outputs  
The MC74AC245/74ACT245 contains eight non−inverting  
bidirectional buffers with 3−state outputs and is intended for  
bus−oriented applications. Current sinking capability is 24 mA at both  
the A and B ports. The Transmit/Receive (T/R) input determines the  
direction of data flow through the bidirectional transceiver. Transmit  
(active−HIGH) enables data from A ports to B ports; Receive  
(active−LOW) enables data from B ports to A ports. The Output  
Enable input, when HIGH, disables both A and B ports by placing  
them in a High Z condition.  
http://onsemi.com  
PDIP−20  
N SUFFIX  
CASE 738  
1
Features  
• Noninverting Buffers  
SOIC−20W  
DW SUFFIX  
CASE 751D  
• Bidirectional Data Path  
• A and B Outputs Source/Sink 24 mA  
• ′ACT245 has TTL Compatible Inputs  
• Pb−Free Packages are Available  
1
PIN ASSIGNMENT  
TSSOP−20  
DT SUFFIX  
CASE 948E  
PIN  
OE  
T/R  
FUNCTION  
Output Enable Input  
1
Transmit/Receive Input  
A −A  
Side A 3−State Inputs or 3−State Outputs  
Side B 3−State Inputs or 3−State Outputs  
0
7
B −B  
SOEIAJ−20  
M SUFFIX  
CASE 967  
0
7
TRUTH TABLES  
Inputs  
1
Outputs  
OE T/R  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 6 of this data sheet.  
L
L
H
L
H
X
Bus B Data to Bus A  
Bus A Data to Bus B  
High Z State  
DEVICE MARKING INFORMATION  
See general marking information in the device marking  
section on page 7 of this data sheet.  
H = HIGH Voltage Level  
L = LOW Voltage Level  
X = Immaterial  
V
OE  
19  
B
B
B
B
B
B
B
B
7
CC  
0
1
2
3
4
5
6
20  
18  
17  
16  
15  
14  
12  
13  
11  
1
2
3
4
5
6
7
9
8
10  
T/R  
A
A
A
A
A
A
A
A
7
GND  
0
1
2
3
4
5
6
Figure 1.  
©
Semiconductor Components Industries, LLC, 2006  
1
Publication Order Number:  
November, 2006 − Rev. 7  
MC74AC245/D  
1234567...10

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MC74AC245DWG 替代型号

型号 品牌 替代类型 描述 数据表
MC74AC245DWR2G ONSEMI

完全替代

 Octal Bidirectional Transceiver with 3−State Inputs/Outputs
SN74AC245DWR TI

功能相似

 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74AC245DW TI

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 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

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