DS1225AB/AD
AC ELECTRICAL CHARACTERISTICS
(cont’d)
PARAMETER
SYMBOL
DS1225AB- 150
DS1225AD- 150
DS1220AB-200
DS1220AD-200
UNITS
NOTES
Read Cycle Time
Access Time
OE to Output Valid
CE to Output Valid
OE or CE to Output Active
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
t
RC
t
ACC
t
OE
t
CO
t
COE
t
OD
t
OH
t
WC
t
WP
t
AW
t
WR1
t
WR2
t
ODW
t
OEW
t
DS
t
DH1
t
DH2
MIN
150
MAX
MIN
200
MAX
150
70
150
5
35
5
150
100
0
0
10
35
5
60
0
10
5
80
0
10
5
200
100
0
0
10
5
200
100
200
35
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5
5
3
12
13
5
5
4
12
13
35
5 of 10
DALLAS [ DALLAS SEMICONDUCTOR ]
