X9428 Datasheet, PDF (14/20 Pages) Xicor Inc. – Single Digitally Controlled Potentiometer

X9428
HIGH-VOLTAGE WRITE CYCLE TIMING
Symbol
t_WR
Parameter
High-voltage write cycle time (store instructions)
Typ.
5
Max.
10
Unit
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
10
Unit
µs
µs
µs
Note: (8) A device must internally provide a hold time of at least 300ns for the SDA signal in order to bridge the undefined region of the falling
edge of SCL.
TIMING DIAGRAMS
START and STOP Timing
SCL
t_SU:STA
SDA
(START)
t_R
t_HD:STA
t_R
t_F
t_SU:STO
t_F
(STOP)
Input Timing
t_CYC
SCL
SDA
Output Timing
SCL
t_SU:DAT
t_HIGH
t_LOW
t_HD:DAT
t_BUF
SDA
t_AA
t_DH
REV 1.1.5 7/8/03
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Characteristics subject to change without notice. 14 of 20