Datasheet

22
23
23
24
24
25
25
4.5 4.7 4.9 5.1 5.3 5.5
t
en
(ns)
V
CC
(V)
C002
7
SN54HCT244 , SN74HCT244
www.ti.com SCLS175E –MONTH 2003–REVISED AUGUST 2016
Product Folder Links: SN54HCT244 SN74HCT244
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Switching Characteristics: C
L
= 150 pF (continued)
over recommended operating free-air temperature range, C
L
= 150 pF (unless otherwise noted) (see Figure 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
TEST
CONDITIONS
MIN TYP MAX UNIT
t
t
Y
4.5 V
T
A
= 25°C 17 42
ns
SN54HCT244 63
SN74HCT244 53
5.5 V
T
A
= 25°C 14 38
SN54HCT244 57
SN74HCT244 48
6.8 Operating Characteristics
T
A
= 25°C
PARAMETER TEST CONDITIONS TYP UNIT
C
pd
Power dissipation capacitance per buffer or driver No load 40 pF
6.9 Typical Characteristics
Figure 1. Enable Time vs V
CC