Rainbow Electronics DS1245Y_AB - Manual (Page 4)

DS1245Y/AB
041497 4/12
(V
CC
=5V
±
5% for DS1245AB)
AC ELECTRICAL CHARACTERISTICS (t
A
: See Note 10) (V
CC
=5V
±
10% for DS1245Y)
PARAMETER SYMBOL
DS1245AB–70
DS1245Y–70
DS1245AB–85
DS1245Y–85
UNITS NOTES PARAMETER SYMBOL
MIN MAX MIN MAX
UNITS NOTES
Read Cycle Time t
RC
70 85 ns
Access Time t
ACC
70 85 ns
OE to Output Valid t
OE
35 45 ns
CE to Output Valid t
CO
70 85 ns
OE or CE to Output Active t
COE
5 5 ns 5
Output High Z from Deselection t
OD
25 30 ns 5
Output Hold from Address Change t
OH
5 5 ns
Write Cycle Time t
WC
70 85 ns
Write Pulse Width t
WP
55 65 ns 3
Address Setup time t
AW
0 0 ns
Write Recovery Time t
WR1
t
WR2
5
15
5
15
ns
ns 12
13
Output High Z from WE t
ODW
25 30 ns 5
Output Active from WE t
OEW
5 5 ns 5
Data Setup Time t
DS
30 35 ns 4
Data Hold Time t
DH1
t
DH2
0
10
0
10
ns
ns 12
13