Datasheet
SCLS141E − 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 SN54HC374 SN74HC374
UNIT
V
CC
MIN MAX MIN MAX MIN MAX
UNIT
2 V 6 4 5
f
clock
Clock frequency
4.5 V
30 20 24
MHz
f
clock
Clock frequency
6 V 35 24 28
MHz
2 V 80 120 100
t
w
Pulse duration, CLK high or low
4.5 V
16 24 20
ns
t
w
Pulse duration, CLK high or low
6 V 14 20 17
ns
2 V 100 150 125
t
su
Setup time, data before CLK↑
4.5 V
20 30 25
ns
t
su
Setup time, data before CLK↑
6 V 17 25 21
ns
2 V 10 13 12
t
h
Hold time, data after CLK↑
4.5 V
5 5 5
ns
t
h
Hold time, data after CLK
6 V 5 5 5
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 SN54HC374 SN74HC374
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
2 V 6 12 4 5
f
max
4.5 V 30 60 20 24
MHz
f
max
6 V 35 70 24 28
MHz
2 V 63 180 270 225
t
pd
CLK Any Q
4.5 V 17 36 54 45
ns
t
pd
CLK
Any Q
6 V 15 31 46 38
ns
2 V 60 150 225 190
t
en
OE Any Q
4.5 V 16 30 45 38
ns
t
en
OE
Any Q
6 V 14 26 38 32
ns
2 V 36 150 225 190
t
dis
OE Any Q
4.5 V 17 30 45 38
ns
t
dis
OE
Any Q
6 V 16 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