©1988 Fairchild Semiconductor Corporation

www.fairchildsemi.com

74AC273, 74ACT273 Rev. 1.6.0

6

AC Electrical Characteristics for AC

Note:

6. Voltage range 3.3 is 3.3V ± 0.3V. Voltage range 5.0 is 5.0V ± 0.5V.

AC Operating Requirements for AC

Note:

7. Voltage range 3.3 is 3.3V ± 0.3V. Voltage range 5.0 is 5.0V ± 0.5V.

Symbol

Parameter

(6)

Units

Min.

Typ.

Max.

Min.

Max.

Maximum Clock Frequency

3.3

90

125

75

MHz

5.0

140

175

125

Propagation Delay,

Clock to Output

3.3

4.0

7.0

12.5

3.0

14.0

ns

5.0

3.0

5.5

9.0

2.5

10.0

Propagation Delay,

Clock to Output

3.3

4.0

7.0

13.0

3.5

14.5

ns

5.0

3.0

5.0

10.0

2.5

11.0

Propagation Delay,

MR to Output

3.3

4.0

7.0

13.0

3.5

14.0

ns

5.0

3.0

5.0

10.0

2.5

10.5

Symbol

Parameter

(7)

Units

Typ.

Guaranteed Minimum

Setup Time, HIGH or LOW,

Data to CP

3.3

3.5

5.5

6.0

ns

5.0

2.5

4.0

4.5

Hold Time, HIGH or LOW,

Data to CP

3.3

–2.0

0

0

ns

5.0

–1.0

1.0

1.0

Clock Pulse Width, HIGH or LOW

3.3

3.5

5.5

6.0

ns

5.0

2.5

4.0

4.5

MR Pulse Width, HIGH or LOW

3.3

2.0

5.5

6.0

ns

5.0

1.5

4.0

4.5

Recovery Time, MR to CP

3.3

1.5

3.5

4.5

ns

5.0

1.0

2.0

3.0