DS1220 Dallas, DS1220 Datasheet - Page 5

• Manufacturer Part Number: DS1220
• Description: 16k 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
t
t
t
ODW
OEW
t
t
t
WR1
WR2
t
ACC
COE
DH1
DH2
WC
AW
CO
OD
OH
WP
RC
OE
DS
DS1220AD-150
DS1220AB-150
MIN
150
150
100
10
60
10
5
5
0
0
5
0
5 of 9
MAX
150
150
70
35
35
DS1220AD-200
DS1220AB-200
MIN
200
200
150
10
50
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
DS1220AB/AD
NOTES
(cont’d)
12
13
12
13
5
5
3
5
4
4