X22C12 Datasheet, PDF (6/12 Pages) Xicor Inc. – Nonvolatile Static RAM

X22C12
Write Cycle Limits
Symbol
t_WC
t_CW
t_AS
t_WP
t_WR
t_DW
t_DH
t_WZ
t_OW
Write Cycle
Parameter
Write Cycle Time
Chip Select to End of Write
Address Setup Time
Write Pulse Width
Write Recovery Time
Data Valid to End of Write
Data Hold Time
Write Enable to Output in High Z
Output Active from End of Write
ADDRESS
CS
tAS
WE
DATA IN
tWZ
DATA OUT
Min.
150
90
0
90
0
40
0
0
tWC
tCW
tWP
tDW
DATA VALID
Max.
50
tWR
tDH
tOW
Early Write Cycle
ADDRESS
CS
WE
DATA IN
DATA OUT
tWC
tCW
tWR
tAS
tWP
HIGH Z
tDW
tDH
DATA VALID
6
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
3817 PGM T09.1
3817 FHD F04
3817 FHD F05