DS3050W Maxim Integrated Products, DS3050W Datasheet - Page 7

• Manufacturer Part Number: DS3050W
• Manufacturer: Maxim Integrated Products

(V
CC
~
7
6
5
4
3
2
1
0
(SEE NOTES 1, 7.)
= 3.3V, T
2.5V
AND
V
RST
V
CE,
WE
3.0
CS
CC
TP
BACKUP CURRENT
LITHIUM BATTERY
5MHz ADDRESS-ACTIVATED
100% DUTY CYCLE
1MHz ADDRESS-ACTIVATED
100% DUTY CYCLE
SUPPLIED FROM
5MHz CE-ACTIVATED
50% DUTY CYCLE
vs. OPERATING FREQUENCY
3.1
A
SUPPLY CURRENT
= +25°C, unless otherwise noted.)
3.2
3.3V Single-Piece 4Mb Nonvolatile SRAM
V
CC
3.3
(V)
1MHz CE-ACTIVATED
50% DUTY CYCLE
3.4
t
PD
t
F
T
A
= +25°C
3.5
3.6
V
_____________________________________________________________________
OL
t
RPD
1000
900
800
700
600
500
3.0
V
V
OSC = ON
CC
BAT
3.1
= CE = 3.3V,
= V
vs. SUPPLY VOLTAGE
CHARGE
SUPPLY CURRENT
3.2
SLEWS WITH
,
t
V
DR
CC
V
3.3
CC
(V)
Typical Operating Characteristics
Power-Down/Power-Up Condition
3.4
3.5
3.6
t
PU
8
7
6
5
4
3
2
1
0
0
V
CC
BATTERY CHARGER CURRENT
= CE = 3.3V
t
0.2
t
RPU
with Clock
R
V
vs. BATTERY VOLTAGE
DELTA V BELOW V
CHARGE
V
OL
0.4
= 2.86V
V
IH
t
REC
0.6
CHARGE
(V)
0.8
1.0
7