MC74AC245, MC74ACT245

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5

AC CHARACTERISTICS (For Figures and Waveforms – See Section 3)

74ACT

74ACT

Symbol

Parameter

VCC*

(V)

TA = +25°C

CL = 50 pF

TA = –40°C

to +85

°C

CL = 50 pF

Unit

Fig.

No.

Min

Typ

Max

Min

Max

tPLH

Propagation Delay

50

15

40

75

15

80

ns

3–5

tPLH

Pro agation Delay

An to Bn or Bn to An

5.0

1.5

4.0

7.5

1.5

8.0

ns

3–5

tPHL

Propagation Delay

50

15

40

80

10

90

ns

3–5

tPHL

Pro agation Delay

An to Bn or Bn to An

5.0

1.5

4.0

8.0

1.0

9.0

ns

3–5

tPZH

Output Enable Time

5.0

1.5

5.0

10

1.5

11.0

ns

3–7

tPZL

Output Enable Time

5.0

1.5

5.5

10

1.5

12.0

ns

3–8

tPHZ

Output Disable Time

5.0

1.5

5.5

10

1.0

11.0

ns

3–7

tPLZ

Output Disable Time

5.0

2.0

5.0

10

1.5

11.0

ns

3–8

*Voltage Range 5.0 V is 5.0 V

±0.5 V.

CAPACITANCE

Symbol

Parameter

Value

Typ

Unit

Test Conditions

CIN

Input Capacitance

4.5

pF

VCC = 5.0 V

CI/O

Input/Output Capacitance

15

pF

VCC = 5.0 V

CPD

Power Dissipation Capacitance

45

pF

VCC = 5.0 V