74AC646(1998) Просмотр технического описания (PDF) - Fairchild Semiconductor

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производитель

74AC646
(Rev.:1998)

Octal Transceiver/Register with 3-STATE Outputs

Fairchild Semiconductor 

AC Operating Requirements for ACT

Symbol

Parameter

tS

Setup Time, HIGH or LOW

BUS to Clock

tH

Hold Time, HIGH or LOW

Bus to Clock

tW

Clock Pulse Width

HIGH or LOW

Note 11: Voltage Range 5.0 is 5.0V ±0.5V

VCC

(V)

(Note 11)

5.0

5.0

5.0

Capacitance

Symbol

Parameter

Typ

CIN

Input Capacitance

CI/O

Input/Output Capacitance

CPD

Power Dissipation Capacitance

4.5

15.0

60.0

TA = +25°C

TA = −40°C to +85°C

CL = 50 pF

CL = 50 pF

Typ

Guaranteed Minimum

2.5

7.0

8.0

0

2.5

2.5

4.5

7.0

8.0

Units

ns

ns

ns

Units

pF

pF

pF

VCC = OPEN

VCC = 5.0V

VCC = 5.0V

Conditions

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