Datasheet

 
     
SCLS071D − NOVEMBER 1988 − REVISED OCTOBER 2003
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
V
CC
T
A
= 25°C SN54HCT157 SN74HCT157
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
A or B
Y
4.5 V 18 28 42 35
A or B Y
5.5 V 15 25 38 32
t
pd
A/B
Y
4.5 V 20 32 48 40
ns
t
pd
A/B
Y
5.5 V 17 29 43 36
ns
G
Y
4.5 V 18 26 39 33
G
Y
5.5 V 15 23 35 30
t
t
Any
4.5 V 8 15 22 19
ns
t
t
Any
5.5 V 7 14 21 17
ns
switching characteristics over recommended operating free-air temperature range, C
L
= 150 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
V
CC
T
A
= 25°C SN54HCT157 SN74HCT157
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
A or B
Y
4.5 V 23 42 63 52
A or B Y
5.5 V 19 38 52 46
t
pd
A/B
Y
4.5 V 24 46 72 58
ns
t
pd
A/B
Y
5.5 V 21 41 61 52
ns
G
Y
4.5 V 21 39 58 48
G
Y
5.5 V 19 35 49 43
t
t
Any
4.5 V 17 42 63 53
ns
t
t
Any
5.5 V 14 38 57 48
ns
operating characteristics, T
A
= 25°C
PARAMETER TEST CONDITIONS TYP UNIT
C
pd
Power dissipation capacitance No load 12 pF
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