74AHC_AHCT377_2

© NXP B.V. 2008. All rights reserved.

Product data sheet

Rev. 02 — 12 June 2008

10 of 16

NXP Semiconductors

74AHC377; 74AHCT377

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

11. Waveforms

Measurement points are given in Table 8.

Fig 6.

Clock pulse width, maximum frequency and input to output propagation delays

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CP input

Qn output

GND

Measurement points are given in Table 8.

The shaded areas indicate when the input is permitted to change for predictable output performance.

Fig 7.

Data set-up and hold times

mna609

GND

GND

GND

CP input

Dn input

E input

Table 8.

Measurement points

Type

Input

Output

74AHC377

0.5

0.5

74AHCT377

1.5 V

0.5

× V

CC