DS1249Y Maxim, DS1249Y Datasheet - Page 4

• Manufacturer Part Number: DS1249Y
• Description: The DS1249 2048k Nonvolatile (NV) SRAMs are 2,097,152-bit, fully static, nonvolatile SRAMs organized as 262,144 words by 8 bits
• Manufacturer: Maxim

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
Output Active from
Data Setup Time
Data Hold Time
OE
CE
OE
to Output Valid
to Output Valid
or
CE
to Output Active
WE
WE
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
ODW
OEW
WR1
WR2
t
ACC
COE
DH1
DH2
WC
AW
OD
OH
WP
(T
RC
OE
CO
DS
A
: See Note 10) (V
4 of 9
MIN
70
70
55
15
30
10
5
5
0
5
5
0
DS1249AB-70
DS1249Y-70
(V
CC
CC
MAX
70
35
70
25
25
= 5V ±5% for DS1249AB)
= 5V ±10% for DS1249Y)
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
DS1249Y/AB
NOTES
12
13
12
13
5
5
3
5
5
4