X25642 Datasheet, PDF (9/16 Pages) Xicor Inc. – Advanced SPI Serial E 2 PROM with Block Lock TM Protection

X25642
EQUIVALENT A.C. LOAD CIRCUIT
5V
3V
1.44KΩ
OUTPUT
1.95KΩ
100pF
1.64KΩ
OUTPUT
4.63KΩ
100pF
A.C. CONDITIONS OF TEST
Input Pulse Levels
Input Rise and Fall Times
Input and OutputTiming Levels
V_CC x 0.1 to V_CC x 0.9
10ns
V_CC X 0.5
7037 FRM T11
3132 ILL F09.2
A.C. OPERATING CHARACTERISTICS
Data Input Timing
Symbol
f_SCK
t_CYC
t_LEAD
t_LAG
t_WH
t_WL
t_SU
t_H
t_RI(4)
t_FI(4)
t_HD
t_CD
t_CS
t_WC(5)
Data Output Timing
Parameter
Clock Frequency
Cycle Time
CS Lead Time
CS Lag Time
Clock HIGH Time
Clock LOW Time
Data Setup Time
Data Hold Time
Data In Rise Time
Data In Fall Time
HOLD Setup Time
HOLD Hold Time
CS Deselect Time
Write Cycle Time
Min.
0
500
250
250
200
200
50
50
100
100
2.0
Max.
2
2
2
10
Units
MHz
ns
ns
ns
ns
ns
ns
ns
µs
µs
ns
ns
µs
ms
7037 FRM T12
Symbol
Parameter
Min.
Max.
Units
f_SCK
t_DIS
t_V
t_HO
t_RO(4)
t_FO(4)
t_LZ(4)
t_HZ(4)
Clock Frequency
Output Disable Time
Output Valid from Clock LOW
Output Hold Time
Output Rise Time
Output Fall Time
HOLD HIGH to Output in Low Z
HOLD LOW to Output in High Z
0
2
MHz
250
ns
200
ns
0
ns
100
ns
100
ns
100
ns
100
ns
7037 FRM T13
Notes: (4) This parameter is periodically sampled and not 100% tested.
(5) 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.
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