M48T248V ST Microelectronics, M48T248V Datasheet - Page 12

• Manufacturer Part Number: M48T248V
• Description: 5.0 or 3.3V / 1024K TIMEKEEPER SRAM with PHANTOM
• Manufacturer: ST Microelectronics

M48T248Y, M48T248V
Table 7. Memory AC Characteristics, M48T248Y
Note: 1. Valid for Ambient Operating Temperature: T
12/24
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WLWH
t
WHQX
WHAX
DVWH
WHDX
GHQZ
WLQZ
AVQV
ELQV
GLQV
ELQX
GLQX
AXQX
EHQZ
ELEH
AVWL
EHAX
DVEH
EHDX
AVEL
AVAV
AVAV
2. These parameters are sampled with a 5 pF load are not 100% tested.
3. t
4. t
Symbol
WE going high.
WP
DH
and t
is specified as the logical AND of CE and WE. t
t
t
t
ODW
t
t
t
DH1
DH2
t
t
WP
t
t
t
OD
DS
t
t
WR1
WR2
OEW
t
ACC
t
t
COE
tOH
WC
AW
DS
RC
CO
OE
(4)
(2)
(3)
(4)
(4)
(2)
are measured from the earlier of CE or WE going high.
READ Cycle Time
Access Time
Chip Enable Low to Output Valid
Output Enable Low to Output Valid
Chip Enable or Output Enable Low to Output Transition
Output Hold from Address Change
Chip Enable or Output Enable High to Output Hi-Z
Output Hi-Z from WE
WRITE Cycle Time
WE, CE Pulse Width
Address Setup Time
WRITE Recovery Time
Address Hold Time from WE
Output Active from WE
Data Setup Time
Data Hold Time from WE
Data Hold Time from CE
A
Parameter
= 0 to 70°C; V
WP
is measured from the latter of CE or WE going low to the earlier of CE or
(1)
CC
= 4.5 to 5.5V or 3.0 to 3.6V (except where noted).
Min
M48T248Y–70
70
70
50
15
30
10
5
5
0
0
5
0
Max
70
70
35
25
25
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns