13
FN8200.0
March 28, 2005
AC TIMING
HIGH-VOLTAGE WRITE CYCLE TIMING
XDCP TIMING
Symbol Parameter Min. Max. Unit
f
SCK
SSI/SPI clock frequency 2.0 MHz
t
CYC
SSI/SPI clock cycle time 500 ns
t
WH
SSI/SPI clock high time 200 ns
t
WL
SSI/SPI clock low time 200 ns
t
LEAD
Lead time 250 ns
t
LAG
Lag time 250 ns
t
SU
SI, SCK, HOLD and CS input setup time 50 ns
t
H
SI, SCK, HOLD and CS input hold time 50 ns
t
RI
SI, SCK, HOLD and CS input rise time 2 µs
t
FI
SI, SCK, HOLD and CS input fall time 2 µs
t
DIS
SO output disable time 0 500 ns
t
V
SO output valid time 100 ns
t
HO
SO output hold time 0 ns
t
RO
SO output rise time 50 ns
t
FO
SO output fall time 50 ns
t
HOLD
HOLD time 400 ns
t
HSU
HOLD setup time 100 ns
t
HH
HOLD hold time 100 ns
t
HZ
HOLD low to output in high Z 100 ns
t
LZ
HOLD high to output in low Z 100 ns
T
I
Noise suppression time constant at
SI, SCK, HOLD
and CS inputs
20 ns
t
CS
CS Deselect Time 2 µs
t
WPASU
WP, A0 and A1 setup time 0 ns
t
WPAH
WP, A0 and A1 hold time 0 ns
Symbol Parameter Typ. Max. Unit
t
WR
High-voltage write cycle time (store instructions) 5 10 ms
Symbol Parameter Min. Max. Unit
t
WRPO
Wiper response time after the third (last) power supply is stable 10 µs
t
WRL
Wiper response time after instruction issued (all load instructions) 10 µs
t
WRID
Wiper response time from an active SCL/SCK edge (increment/decrement instruction) 450 µs
X9440
