74F2645SCX Просмотр технического описания (PDF) - Fairchild Semiconductor

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74F2645SCX

Octal Bus Transceiver with 25Ω Series Resistors in the Outputs

Fairchild Semiconductor 

AC Electrical Characteristics

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

2.5

7.5

1.5

6.0

2.5

7.5

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

6.5

TA = 0°C to +70°C

VCC = +5.0V

CL = 50 pF

Min

Max

1.5

7.0

2.5

8.0

1.5

7.0

2.5

8.0

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

6.5

Units

ns

ns

ns

ns

Basic FAST Circuit Showing Series Resistor Placement

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