Datasheet
SCLS140D − DECEMBER 1982 − REVISED AUGUST 2003
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
V
CC
T
A
= 25°C SN54HC373 SN74HC373
UNIT
V
CC
MIN MAX MIN MAX MIN MAX
UNIT
2 V 80 120 100
t
w
Pulse duration, LE high
4.5 V
16 24 20
ns
t
w
Pulse duration, LE high
6 V 14 20 17
ns
2 V 50 75 63
t
su
Setup time, data before LE↓
4.5 V
10 15 13
ns
t
su
Setup time, data before LE↓
6 V 9 13 11
ns
2 V 20 26 24
t
h
Hold time, data after LE↓
4.5 V
10 13 12
ns
t
h
Hold time, data after LE↓
6 V 10 13 12
ns
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 SN54HC373 SN74HC373
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
2 V 58 150 225 190
D Q
4.5 V 15 30 45 38
t
pd
D
Q
6 V 13 26 38 32
ns
t
pd
2 V 73 175 265 220
ns
LE Any Q
4.5 V 18 35 53 44
LE
Any Q
6 V 15 30 45 38
2 V 65 150 225 190
t
en
OE Any Q
4.5 V 17 30 45 38
ns
t
en
OE
Any Q
6 V 14 26 38 32
ns
2 V 50 150 225 190
t
dis
OE Any Q
4.5 V 15 30 45 38
ns
t
dis
OE
Any Q
6 V 13 26 38 32
ns
2 V 28 60 90 75
t
t
Any Q
4.5 V 8 12 18 15
ns
t
t
Any Q
6 V 6 10 15 13
ns