74AHC_AHCT240

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Product data sheet

Rev. 2 — 26 November 2010

9 of 16

NXP Semiconductors

74AHC240; 74AHCT240

Octal buffer/line driver; inverting; 3-state

Test data is given in Table 9.

Definitions test circuit:

S1 = Test selection switch.

Fig 7.

Load circuitry for switching times

10 %

90 %

0 V

negative

pulse

positive

pulse

0 V

90 %

10 %

001aad983

DUT

VI

VO

RT

RL

S1

CL

open

G

Table 9.

Test data

Type

Input

Load

S1 position

74AHC240

3.0 ns

15 pF, 50 pF

1 k



open

GND

74AHCT240

3.0 V

3.0 ns

15 pF, 50 pF

1 k



open

GND