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MC74F657A Datasheet(PDF) 4 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) 4 Page - Motorola, Inc

   
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FAST AND LS TTL DATA
MC74F657A, B
F657A
AC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
74F
74F
Unit
Symbol
Parameter
TA = +25°C
VCC = +5.0 V
CL = 50 pF
TA = 0°C to +70°C
VCC = +5.0 V ± 10%
CL = 50 pF
Unit
Symbol
Parameter
Min
Typ
Max
Min
Max
Unit
tPLH
tPHL
Propagation Delay
2.0
7.0
2.0
7.5
ns
PLH
tPHL
An to Bn or Bn to An
2.0
7.0
2.0
7.5
ns
tPLH
Propagation Delay
6.0
13
5.5
14
ns
tPHL
An to PARITY
6.5
13
6.5
14
ns
tPLH
Propagation Delay
4.5
10.5
4.5
11
ns
tPHL
EVEN/ODD to PARITY, ERROR
4.5
10.5
4.5
11.5
ns
tPLH
Propagation Delay
7.0
18
6.5
19
ns
tPHL
Bn to ERROR
7.0
18
6.5
19
ns
tPLH
Propagation Delay
8.0
14
7.0
15
ns
tPHL
PARITY to ERROR
7.0
14
7.0
15
ns
tPZH
Output Enable Time
3.0
8.0
3.0
9.0
ns
tPZL
to HIGH or LOW Level
4.0
9.0
4.0
10
ns
tPHZ
tPLZ
Output Disable Time
2.0
7.5
2.0
8.0
ns
PHZ
tPLZ
from HIGH or LOW Level
2.0
6.0
2.0
6.5
ns
F657B
AC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
74F
74F
Unit
Symbol
Parameter
TA = +25°C
VCC = +5.0 V
CL = 50 pF
TA = 0°C to +70°C
VCC = +5.0 V ± 10%
CL = 50 pF
Unit
Symbol
Parameter
Min
Typ
Max
Min
Max
Unit
tPLH
Propagation Delay
2.0
6.0
2.0
6.5
ns
tPHL
An to Bn or Bn to An
2.0
6.0
2.0
6.5
ns
tPLH
Propagation Delay
4.5
11.5
4.5
13
ns
tPHL
An to PARITY
4.5
11.5
4.5
13
ns
tPLH
Propagation Delay
2.0
7.5
2.0
8.5
ns
tPHL
EVEN/ODD to PARITY, ERROR
2.0
7.5
2.0
8.5
ns
tPLH
Propagation Delay
4.0
15
3.5
16
ns
tPHL
Bn to ERROR
4.0
15
3.5
16
ns
tPLH
Propagation Delay
5.0
11
4.0
12
ns
tPHL
PARITY to ERROR
5.0
11
4.0
12
ns
tPZH
Output Enable Time
2.0
7.0
2.0
8.0
ns
tPZL
to HIGH or LOW Level
2.0
7.0
2.0
8.0
ns
tPHZ
tPLZ
Output Disable Time
2.0
6.0
2.0
6.5
ns
PHZ
tPLZ
from HIGH or LOW Level
2.0
6.0
2.0
6.5
ns


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