X9250 Datasheet, PDF (12/21 Pages) Xicor Inc. – Quad Digitally Controlled Potentiometers (XDCP)

X9250
Circuit #3 SPICE Macro Model
R_TOTAL
R_H
R_L
C_L
C_H
C_{W 10pF}
10pF
25pF
R_W
EQUIVALENT A.C. LOAD CIRCUIT
5V
2.7V
1533Ω
SDA Output
100pF
100pF
AC TIMING
Symbol
f_SCK
t_CYC
t_WH
t_WL
t_LEAD
t_LAG
t_SU
t_H
t_RI
t_FI
t_DIS
t_V
t_HO
t_RO
t_FO
t_HOLD
t_HSU
t_HH
t_HZ
t_LZ
T_I
t_CS
t_WPASU
t_WPAH
Parameter
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
Min.
500
200
200
250
250
50
75
0
0
400
100
100
2
0
0
Max.
2.0
2
2
500
100
50
50
100
100
TBD
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
REV 1.1.5 1/31/03
www.xicor.com
Characteristics subject to change without notice. 12 of 21