X9250
HIGH-VOLTAGE WRITE CYCLE TIMING
Symbol
Parameter
Typ.
Max.
Unit
t
High-voltage write cycle time (store instructions)
5
10
ms
WR
XDCP TIMING
Symbol
Parameter
Min. Max. Unit
t
Wiper response time after the third (last) power supply is stable
Wiper response time after instruction issued (all load instructions)
10
10
40
µs
µs
µs
WRPO
t
WRL
t
Wiper response time from an active SCL/SCK edge (increment/decrement instruc-
tion)
WRID
SYMBOL TABLE
WAVEFORM
INPUTS
OUTPUTS
Must be
steady
Will be
steady
May change
from Low to
High
Will change
from Low to
High
May change
from High to
Low
Will change
from High to
Low
Don’t Care:
Changes
Allowed
Changing:
State Not
Known
N/A
Center Line
is High
Impedance
TIMING DIAGRAMS
Input Timing
t
CS
CS
t
t
t
LAG
LEAD
CYC
SCK
...
WH
t
t
FI
t
RI
t
t
t
WL
SU
H
...
MSB
LSB
SI
High Impedance
SO
Characteristics subject to change without notice. 13 of 21
REV 1.1.5 1/31/03
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XICOR [ XICOR INC. ]
