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| 74F640 Datasheet, PDF (4/6 Pages) NXP Semiconductors – Octal bus transceiver, inverting 3-State | |||
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AC Electrical Characteristics 74F640
Symbol
Parameter
tPLH
Propagation Delay
tPHL
A Input to B Output
tPLH
Propagation Delay
tPHL
B Input to A Output
tPZH
Enable Time
tPZL
OE Input to A Output
tPHZ
Disable Time
tPLZ
OE Input to A Output
tPZH
Enable Time
tPZL
OE Input to B Output
tPHZ
Disable Time
tPLZ
OE Input to B Output
TA = +25°C
VCC = +5.0V
CL = 50 pF
Min
Typ
Max
2.5
7.5
2.0
7.0
2.5
7.5
2.0
7.0
2.5
7.5
2.5
8.0
1.5
7.0
1.5
6.0
2.5
7.5
2.5
8.0
1.5
7.0
1.5
6.0
AC Electrical Characteristics 74F645
Symbol
Parameter
tPLH
Propagation Delay
tPHL
A Input to B Output
tPLH
Propagation Delay
tPHL
B Input to A Output
tPZH
Enable Time
tPZL
OE Input to A Output
tPHZ
Disable Time
tPLZ
OE Input to A Output
tPZH
Enable Time
tPZL
OE Input to B Output
tPHZ
Disable Time
tPLZ
OE Input to B Output
TA = +25°C
VCC = +5.0V
CL = 50 pF
Min
Typ
Max
1.5
6.0
2.0
7.0
1.5
6.0
2.0
7.0
2.5
8.0
2.5
8.5
1.5
7.0
1.0
5.5
2.5
7.5
2.5
8.5
1.5
6.5
1.0
5.5
TA = 0°C to +70°C
VCC = +5.0V
CL = 50 pF
Min
Max
2.0
8.0
2.0
7.0
2.0
8.0
2.0
7.0
2.0
9.0
2.0
8.5
1.0
7.5
1.5
6.0
2.0
9.0
2.0
8.5
1.0
7.5
1.5
6.0
Units
ns
ns
ns
ns
TA = 0°C to +70°C
VCC = +5.0V
CL = 50 pF
Min
Max
1.5
7.0
2.0
7.5
1.5
7.0
2.0
7.5
2.0
9.0
2.0
8.5
1.0
8.0
1.0
5.5
2.0
9.5
2.5
9.0
1.0
7.5
1.0
5.5
Units
ns
ns
ns
ns
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