DS1225AB Datasheet, PDF (5/10 Pages) Dallas Semiconductor – 64k Nonvolatile SRAM

AC ELECTRICAL CHARACTERISTICS (cont’d)
DS1225AB- 150
PARAMETER
SYMBOL ^{DS1225AD- 150}
MIN MAX
Read Cycle Time
Access Time
OE to Output Valid
t_RC
150
t_ACC
150
t_OE
70
CE to Output Valid
t_CO
150
OE or CE to Output Active
t_COE
5
Output High Z from Deselection
t_OD
Output Hold from Address
Change
t_OH
35
5
Write Cycle Time
Write Pulse Width
Address Setup Time
Write Recovery Time
Output High Z from WE
t_WC
150
t_WP
100
t_AW
0
t_WR1
0
t_WR2
10
t_ODW
35
Output Active from WE
t_OEW
5
Data Setup Time
Data Hold Time
t_DS
60
t_DH1
0
t_DH2
10
DS1220AB-200
DS1220AD-200
MIN MAX
200
200
100
200
5
35
5
200
100
0
0
10
35
5
80
0
10
DS1225AB/AD
UNITS NOTES
ns
ns
ns
ns
ns
5
ns
5
ns
ns
ns
3
ns
ns
12
ns
13
ns
5
ns
5
ns
4
ns
12
ns
13
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