74AHC_AHCT377_2

© NXP B.V. 2008. All rights reserved.

Product data sheet

Rev. 02 — 12 June 2008

8 of 16

NXP Semiconductors

74AHC377; 74AHCT377

Octal D-type flip-flop with data enable; positive-edge trigger

10. Dynamic characteristics

Table 7.

Dynamic characteristics

Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 8.

Symbol Parameter

Conditions

25

°C

−40 °C to +85 °C −40 °C to +125 °C Unit

Min

Typ[1] Max

Min

Max

Min

Max

74AHC377

propagation

delay

CP to Qn; see Figure 6

[2]

-

5.6

12.8

1.0

15.0

1.0

16.0

ns

-

8.0

16.0

1.0

18.0

1.0

20.0

ns

-

3.9

9.0

1.0

10.5

1.0

11.5

ns

-

5.6

10.5

1.0

12.0

1.0

13.5

ns

maximum

frequency

see Figure 6

80

125

-

70

-

70

-

MHz

50

75

-

45

-

45

-

MHz

125

175

-

110

-

110

-

MHz

85

120

-

75

-

75

-

MHz

pulse width

CP HIGH or LOW;

see Figure 6

5.0

-

-

5.0

-

5.0

-

ns

5.0

-

-

5.0

-

5.0

-

ns

set-up time

Dn, E to CP; see Figure 7

5.0

-

-

5.0

-

5.0

-

ns

4.5

-

-

4.5

-

4.5

-

ns

hold time

Dn, E to CP; see Figure 7

1.5

-

-

1.5

-

1.5

-

ns

2.0

-

-

2.0

-

2.0

-

ns

power

dissipation

capacitance

[3]

-20

-

-

-

-

-

pF