Datasheet

CY74FCT825T
8-BIT BUS-INTERFACE REGISTER
WITH 3-STATE OUTPUTS
SCCS070A – OCTOBER 2001 – REVISED NOVEMBER 2001
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range (unless otherwise
noted) (see Figure 1)
PARAMETER
TEST LOAD
CY74FCT825AT CY74FCT825BT CY74FCT825CT
UNIT
PARAMETER
TEST
LOAD
MIN MAX MIN MAX MIN MAX
UNIT
t
Pulse duration
CP
C
L
= 50 pF,
7 6 6
ns
t
w
P
u
lse
d
u
ration
CLR low
L
,
R
L
= 500 Ω
6 6 6
ns
t
Setu
p
time before CP↑
Data
C
L
= 50 pF,
4 3 3
ns
t
su
S
e
t
up
ti
me,
b
e
f
ore
CP↑
EN
L
,
R
L
= 500 Ω
4 3 3
ns
t
h
Hold time after CP↑
Data
C
L
= 50 pF,
2 1.5 1.5
ns
t
h
H
o
ld
ti
me, a
ft
er
CP↑
EN
L
,
R
L
= 500 Ω
2 0 0
ns
t
rec
Recovery time CLR before CP↑
C
L
= 50 pF,
R
L
= 500 Ω
6 6 6 ns
switching characteristics over operating free-air temperature range (see Figure 1)
PARAMETER
FROM TO
TEST LOAD
CY74FCT825AT CY74FCT825BT CY74FCT825CT
UNIT
PARAMETER
(INPUT) (OUTPUT)
TEST
LOAD
MIN MAX MIN MAX MIN MAX
UNIT
t
PLH
CP
Y
C
L
= 50 pF,
10 7.5 6
ns
t
PHL
CP
Y
L
,
R
L
= 500 Ω
10 7.5 6
ns
t
PLH
CP
Y
C
L
= 300 pF,
20 15 12.5
ns
t
PHL
CP
Y
L
,
R
L
= 500 Ω
20 15 12.5
ns
t
PLH
CLR
Y
C
L
= 50 pF,
R
L
= 500 Ω
14 9 8 ns
t
PZH
OE
Y
C
L
= 50 pF,
12 8 7
ns
t
PZL
OE
Y
L
,
R
L
= 500 Ω
12 8 7
ns
t
PZH
OE
Y
C
L
= 300 pF,
23 15 12.5
ns
t
PZL
OE
Y
L
,
R
L
= 500 Ω
23 15 12.5
ns
t
PHZ
OE
Y
C
L
= 5 pF,
7 6.5 6
ns
t
PLZ
OE
Y
L
,
R
L
= 500 Ω
7 6.5 6
ns
t
PHZ
OE
Y
C
L
= 50 pF,
8 7.5 6.5
ns
t
PLZ
OE
Y
L
R
L
= 500 Ω
8 7.5 6.5
ns