DS1244Y-120 DALLAS [Dallas Semiconductor], DS1244Y-120 Datasheet - Page 10

• Manufacturer Part Number: DS1244Y-120
• Description: 256K NV SRAM with Phantom Clock
• Manufacturer: DALLAS [Dallas Semiconductor]

WRITE CYCLE TO PHANTOM CLOCK
POWER–DOWN/POWER–UP CONDITION
DS1244Y
032697 10/12
WE
Ì Ì Ì Ì Ì Ì Ì
Ì Ì Ì Ì Ì Ì Ì
CE
D
V
LEAKAGE
SUPPLIED FROM LITHIUM
CELL
CE
CC
4.50V
OE = V
CURRENT
3.2V
IH
t
PD
t
F
I
L
t
DS
t
CW
DATA RETENTION TIME
DATA IN STABLE
t
WP
t
WC
t
DR
t
t
WR
DH
t
WR
t
DH
Ì Ì Ì Ì Ì Ì
Ì Ì Ì Ì Ì Ì
t
t
REC
R