DS1225 Dallas, DS1225 Datasheet - Page 5

• Manufacturer Part Number: DS1225
• Description: 64k Nonvolatile SRAM
• Manufacturer: Dallas

AC ELECTRICAL CHARACTERISTICS (cont’d)
PARAMETER
Read Cycle Time
Access Time
Output High Z from Deselection
Output Hold from Address
Change
Write Cycle Time
Write Pulse Width
Address Setup Time
Write Recovery Time
Output High Z from WE
Output Active from WE
Data Setup Time
Data Hold Time
OE to Output Valid
CE to Output Valid
OE or CE to Output Active
SYMBOL
t
t
t
t
t
t
t
t
t
t
ODW
t
t
t
t
t
OEW
ACC
t
WR1
WR2
t
COE
DH1
DH2
AW
WC
WP
RC
OE
CO
OD
OH
DS
5 of 10
MIN
DS1225AB- 150
DS1225AD- 150
150
150
100
10
60
10
5
5
0
0
5
0
MAX
150
150
70
35
35
MIN
200
200
100
DS1220AB-200
DS1220AD-200
10
80
10
5
5
0
0
5
0
MAX
200
100
200
35
35
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
DS1225AB/AD
NOTES
12
13
12
13
5
5
3
5
5
4