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MC74F657A Datasheet(PDF) 2 Page - Motorola, Inc

Part No. MC74F657A
Description  OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS)
Download  5 Pages
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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MC74F657A Datasheet(HTML) 2 Page - Motorola, Inc

   
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FAST AND LS TTL DATA
MC74F657A, B
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
74
4.5
5.0
5.5
V
TA
Operating Ambient
Temperature Range
74
0
25
70
°C
IOH
Output Current — High
74
–3.0/–15
mA
IOL
Output Current — Low
74
24/64
mA
FUNCTION TABLE
Number of
Inputs That are High
Inputs
Input/Output
Outputs
OE
T/R
Even/Odd
Parity
Error
Outputs Mode
L
H
H
H
Z
Transmit
L
H
L
L
Z
Transmit
L
L
H
H
H
Receive
0, 2, 4, 6, 8
L
L
H
L
L
Receive
L
L
L
H
L
Receive
L
L
L
L
H
Receive
Number of
Inputs That are High
Inputs
Input/Output
Outputs
OE
T/R
Even/Odd
Parity
Error
Outputs Mode
L
H
H
L
Z
Transmit
L
H
L
H
Z
Transmit
L
L
H
H
L
Receive
1, 3, 5, 7
L
L
H
L
H
Receive
L
L
L
H
H
Receive
L
L
L
L
L
Receive
Don’t Care
H
X
X
Z
Z
Z
H = HIGH Voltage Level; L = LOW Voltage Level; X = Don’t Care; Z = HIGH impedance state.


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