Datasheet


   
   
SCLS589 − AUGUST 2004
6
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range, V
CC
= 5 V ± 0.5 V
(unless otherwise noted) (see Figure 1)
MIN MAX UNIT
t
w
Pulse duration
CLKA, CLKB, RCLK high or low 10
ns
t
w
Pulse duration
CCLR
low 20
ns
CLKBEN low before CLKB 10
CCLR high (inactive) before CLKA
or CLKB
10
t
su
Setup time
CLKA or CLKB before RCLK 10
ns
t
su
Setup time
RCLK before GAL or GAU or GBL or
GBU
low
10
ns
GAL or GAU or GBL or GBU high
(inactive) before RCLK
10
t
h
Hold time
CLKBEN low after CLKB 0
ns
t
h
Hold time
CLKA or CLKB after RCLK 0
ns
t
z
Z-period
GAL, GAU, GBL, GBU all high before
one of them switches low
200 ns
t
z
condition: C
L
= 50 pF, R
L
= 1 k
switching characteristics over recommended operating free-air temperature range,
V
CC
= 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
T
A
= 25°C
MIN
MAX
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN TYP MAX
MIN
MAX
UNIT
f
MAX
C
L
= 15 pF 40
MHz
f
MAX
C
L
= 50 pF 25
MHz
t
pd
RCLK Y 22 1 38
ns
t
pd
CLKA RCOA 26 1 44
ns
t
PLH
CCLR RCOA
C
L
= 15 pF
18 1 32 ns
t
en
GAL, GAU, GBL, GBU Y
C
L
= 15 pF
27 1 46 ns
t
dis
GAL, GAU, GBL, GBU Y 12 1 21 ns
t
pd
RCLK Y 25 1 42
ns
t
pd
CLKA RCOA 28 1 46
ns
t
PLH
CCLR RCOA
C
L
= 50 pF
20 1 35 ns
t
en
GAL, GAU, GBL, GBU Y
C
L
= 50 pF
30 1 50 ns
t
dis
GAL, GAU, GBL, GBU Y 14 1 24 ns