X9421 Xicor, X9421 Datasheet - Page 14

• Manufacturer Part Number: X9421
• Description: Single Digitally Controlled (XDCP) Potentiometer
• Manufacturer: Xicor

X9421
EQUIVALENT A.C. LOAD CIRCUIT
AC TIMING
REV 1.1.6 8/1/02
Symbol
t
WPASU
t
t
t
WPAH
t
HOLD
t
f
LEAD
t
t
t
SCK
CYC
t
t
t
t
t
HSU
t
t
LAG
t
t
WH
t
DIS
WL
t
HO
RO
SU
t
t
FO
HH
HZ
T
CS
LZ
RI
FI
SDA Output
H
V
I
SSI/SPI Clock Frequency
SSI/SPI Clock Cycle Time
SSI/SPI Clock High Time
SSI/SPI Clock Low Time
Lead Time
Lag Time
SI, SCK, HOLD and CS Input Setup Time
SI, SCK, HOLD and CS Input Hold Time
SI, SCK, HOLD and CS Input Rise Time
SI, SCK, HOLD and CS Input Fall Time
SO Output Disable Time
SO Output Valid Time
SO Output Hold Time
SO Output Rise Time
SO Output Fall Time
HOLD Time
HOLD Setup Time
HOLD Hold Time
HOLD Low to Output in High Z
HOLD High to Output in Low Z
Noise Suppression Time Constant at SI, SCK, HOLD and CS inputs
CS Deselect Time
WP, A0 and A1 Setup Time
WP, A0 and A1 Hold Time
5V
1533
100pF
2.7V
Parameter
100pF
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Circuit #3 SPICE Macro Model
R
H
Characteristics subject to change without notice.
10pF
C
H
R
TOTAL
Min.
R
500
200
200
250
250
400
100
100
50
50
0
0
2
0
0
W
25pF
C
W
Max.
10pF
C
500
100
100
100
2.0
50
50
20
L
2
2
R
L
Units
MHz
14 of 21
ns
ns
ns
ns
ns
ns
ns
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns