DS1225 Dallas, DS1225 Datasheet - Page 4

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

AC ELECTRICAL CHARACTERISTICS
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
4 of 10
MIN
DS1225AB-70
DS1225AD-70
70
70
55
10
30
10
5
5
0
0
5
0
MAX
70
35
70
25
25
(V
(V
CC
DS1220AB-85
DS1220AD-85
MIN
85
85
65
10
35
10
CC
5
5
0
0
5
0
=5V ± 10% for DS1225AD)
=5V ± 5% for DS1225AB)
MAX
85
45
85
30
30
(T
UNITS
A
: See Note 10)
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