X9400 Datasheet, PDF (13/21 Pages) Xicor Inc. – Quad Digitally Controlled Potentiometers (XDCP)

X9400
HIGH-VOLTAGE WRITE CYCLE TIMING
Symbol
t_WR
Parameter
High-voltage write cycle time (store instructions)
Typ.
Max.
Unit
5
10
ms
XDCP TIMING
Symbol
t_WRPO
t_WRL
t_WRID
Parameter
Wiper response time after the third (last) power supply is stable
Wiper response time after instruction issued (all load instructions)
Wiper response time from an active SCL/SCK edge (increment/decrement instruction)
Min. Max.
10
10
450
Unit
µs
µs
ns
TIMING DIAGRAMS
Input Timing
CS
SCK
SI
SO
t_LEAD
t_SU
t_H
t_WL
MSB
High Impedance
Output Timing
t_CYC
...
t_WH
t_FI
...
t_CS
t_RI
LSB
t_LAG
CS
SCK
SO
SI ^ADDR
t_V
MSB
...
t_HO
...
t_DIS
LSB
13
FN8189.1
March 31, 2005