Datasheet

Voltage (V)
Time (ns)
4.5 4.6 4.7 4.8 4.9 5 5.1 5.2 5.3 5.4 5.5
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
D001
Typical t
pd
Maximum t
pd
7
SN54HCT245 , SN74HCT245
www.ti.com SCLS020F –MARCH 1984–REVISED AUGUST 2016
Product Folder Links: SN54HCT245 SN74HCT245
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6.7 Switching Characteristics: C
L
= 150 pF
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
pd
A or B B or A
4.5 V
T
A
= 25°C 20 30
ns
SN54HCT245 45
SN74HCT245 38
5.5 V
T
A
= 25°C 18 27
SN54HCT245 41
SN74HCT245 34
t
en
OE A or B
4.5 V
T
A
= 25°C 36 59
ns
SN54HCT245 89
SN74HCT245 74
5.5 V
T
A
= 25°C 30 53
SN54HCT245 80
SN74HCT245 67
t
t
A or B
4.5 V
T
A
= 25°C 17 42
ns
SN54HCT245 63
SN74HCT245 53
5.5 V
T
A
= 25°C 14 38
SN54HCT245 57
SN74HCT245 48
6.8 Operating Characteristics
T
A
= 25°C
PARAMETER TEST CONDITIONS TYP UNIT
C
pd
Power dissipation capacitance per transceiver No load 40 pF
6.9 Typical Characteristics
Figure 1. Propagation Delay Over Operating Voltage Range, T
A
= 25°C