X25644 Datasheet, PDF (10/15 Pages) Xicor Inc. – Programmable Watchdog Timer w/Serial E 2 PROM

X25644/46
X25324/26
X25164/66
Data Output Timing
Symbol
Parameter
Voltage Range
Min.
Max.
Units
f_SCK
Clock Frequency
2.7V–5.5V
1.8V–3.6V
0
2
1
MHz
t_DIS
Output Disable Time
2.7V–5.5V
1.8V–3.6V
250
ns
t_V
Output Valid from Clock Low
2.7V–5.5V
1.8V–3.6V
200
400
ns
t_HO
Output Hold Time
2.7V–5.5V
1.8V–3.6V
0
ns
t_RO⁽³⁾
Output Rise Time
2.7V–5.5V
1.8V–3.6V
100
ns
t_FO⁽³⁾
Output Fall Time
2.7V–5.5V
1.8V–3.6V
100
ns
Notes:
(3) This parameter is periodically sampled and not 100% tested.
(4) t_WC is the time from the rising edge of CS after a valid write sequence has been sent to the end of the self-timed internal
nonvolatile write cycle.
7036 FRM T14
Serial Output Timing
CS
SCK
SO
t _CYC
t_WH
t _LAG
t_V
MSB OUT
t_HO
MSB–1 OUT
t _WL
t_DIS
LSB OUT
SI
ADDR
LSB IN
Serial Input Timing
CS
SCK
SI
SO
t_LEAD
t_SU
t_H
MSB IN
HIGH IMPEDANCE
t_CS
t_LAG
t_RI
t _FI
LSB IN
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