74HCT240D,74HCT244D

6

11.6. AC Characteristics (Note)

(Unless otherwise specified, Ta = -40 to 125 �, Input: tr = tf = 6 ns)

Characteristics

Output transition time

Propagation delay time

Propagation delay time

3-state output enable time

3-state output disable time

Input capacitance

Part Number

74HCT240D

74HCT244D

Symbol

tTLH,tTHL

tPLH,tPHL

tPLH,tPHL

tPZL,tPZH

tPLZ,tPHZ

CIN

Test

Condition

�

�

RL = 1 kΩ

RL = 1 kΩ

�

CL (pF)

50

50

150

50

150

50

150

50

VCC (V)

4.5

5.5

4.5

5.5

4.5

5.5

4.5

5.5

4.5

5.5

4.5

5.5

4.5

5.5

4.5

5.5

Min

�

�

�

�

�

�

�

�

�

�

�

�

�

�

�

�

�

Max

17

16

32

29

44

39

35

32

47

43

44

39

55

49

44

39

10

Unit

ns

ns

ns

ns

ns

pF

Note:

Operating Range spec of Topr = -40 � to 125 � is applicable only for the products which manufactured after

July 2020.

2020-11-17

Rev.3.0

©2016-2020

Toshiba Electronic Devices & Storage Corporation