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MC74F657A

更新时间： 2024-11-11 04:59:15
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 输出元件
页数 文件大小 规格书
5页 125K
描述
OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS)

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中文翻译

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MC74F657A 数据手册

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MC74F657A,B  
OCTAL BIDIRECTIONAL  
TRANSCEIVER WITH 8-BIT PARITY  
GENERATOR CHECKER  
(3-STATE OUTPUTS)  
The MC74F657A and MC74F657B are Octal Bidirectional Transceivers  
with an 8-bit parity Generator/Checker and 3-state outputs.  
The A and B options are faster versions of the F657 and contain eight non-  
inverting buffers with 3-state outputs and an 8-bit parity generator/checker.  
These devices are intended for bus-oriented applications. The buffers have  
a guaranteed current sinking capability of 24 mA at the A ports and 64 mA at  
the B ports. The Transmit/Receiver (T/R) input determines the direction of the  
data flow through the bidirectional transceivers. Transmit (active HIGH) en-  
ables data from A ports to B ports; Receive (active LOW) enables data from  
B ports to A ports.  
OCTAL BIDIRECTIONAL  
TRANSCEIVER WITH 8-BIT PARITY  
GENERATOR CHECKER  
(3-STATE OUTPUTS)  
FAST SCHOTTKY TTL  
• High-Impedance NPN Base Input for Reduced Loading (20 µA in  
HIGH and LOW States)  
24  
J SUFFIX  
CERAMIC  
1
• Ideal in Applications Where High Output Drive and Light Bus Loading  
CASE 758-01  
are Required (I is 20 µA versus Fast std of 600 µA)  
IL  
• Combines F245 and F280A Functions in One Package  
• 3-State Outputs  
• B Outputs, PARITY, ERROR, Sink 64 mA and Source 15 mA  
• 15 mA Source Current  
• Input Diodes for Termination Effects  
• Glitchless Outputs During Power Up and Power Down  
• High Impedance Outputs During Power Off  
• ESD Protection > 4000 Volts  
N SUFFIX  
PLASTIC  
CASE 724-03  
24  
1
PIN ASSIGNMENT  
DW SUFFIX  
SOIC  
CASE 751E-03  
OE  
24  
B
B
B
B
GND GND  
19 18  
B
B
B
B
PARITY  
13  
0
1
2
3
4
5
6
7
24  
23  
22  
21  
20  
17  
16  
15  
14  
1
ORDERING INFORMATION  
MC74FXXXAJ/BJ  
MC74FXXXAN/BN  
MC74FXXXADW/BDW  
Ceramic  
Plastic  
SOIC  
1
2
3
4
5
6
8
9
10  
12  
7
11  
T/R  
A
A
A
A
A
V
A
A
A
ODD/ ERROR  
EVEN  
0
1
2
3
4
CC  
5
6
7
LOGIC SYMBOL  
2
3
4
5
6
8
9
10  
A
A
A
A
A
A
A
A
7
0
1
2
3
4
5
6
1
24  
11  
T/R  
OE  
PARITY  
ERROR  
13  
12  
EVEN/ODD  
B
B
B
B
B
B
B
B
7
0
1
2
3
4
5
6
23  
22  
21  
20  
17  
16  
15  
14  
FAST AND LS TTL DATA  
4-247  
12345

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与MC74F657A相关器件

型号 品牌 获取价格 描述 数据表
MC74F657ADW MOTOROLA

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 		OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS)
MC74F657ADW/BDW MOTOROLA

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 		OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS)
MC74F657ADWR2 MOTOROLA

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 		F/FAST SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO24, PLASTIC, SOIC-24
MC74F657AJ MOTOROLA

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 		OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS)
MC74F657AJ/BJ MOTOROLA

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 		OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS)
MC74F657AJD MOTOROLA

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 		暂无描述
MC74F657AN MOTOROLA

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 		OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS)
MC74F657AN/BN MOTOROLA

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 		OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS)
MC74F657AND MOTOROLA

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 		F/FAST SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDIP24, 724-03
MC74F657BDW MOTOROLA

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 		OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS)

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