Datasheet

DS1245Y/AB
5 of 10
AC ELECTRICAL CHARACTERISTICS (V
CC
= 5V ±5% for DS1245AB)
(T
A
: See Note 10) (V
CC
= 5V ±10% for DS1245Y)
PARAMETER SYMBOL
DS1245AB-70
DS1245Y-70
UNITS NOTES
MIN MAX
Read Cycle Time t
RC
70 ns
Access Time t
ACC
70 ns
OE
to Output Valid
t
OE
35 ns
CE
to Output Valid
t
CO
70 ns
OE
or
CE
to Output Active
t
COE
5 ns 5
Output High Z from Deselection t
OD
25 ns 5
Output Hold from Address Change t
OH
5 ns
Write Cycle Time t
WC
70 ns
Write Pulse Width t
WP
55 ns 3
Address Setup Time t
AW
0 ns
Write Recovery Time
t
WR1
t
WR2
5
15
ns
ns
12
13
Output High Z from
WE
t
ODW
25 ns 5
Output Active from
WE
t
OEW
5 ns 5
Data Setup Time t
DS
30 ns 4
Data Hold Time
t
DH1
t
DH2
0
10
ns
ns
12
13