
DS2065W 3.3V Single-Piece 8Mb
Nonvolatile SRAM
Typical Operating Characteristics
(V CC = +3.3V, T A = +25 ° C, unless otherwise noted.)
SUPPLY CURRENT
vs. OPERATING FREQUENCY
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
BATTERY CHARGER CURRENT
vs. BATTERY VOLTAGE
7
6
5
4
5MHz CE-ACTIVATED T A = +25 ° C
50% DUTY CYCLE
5MHz ADDRESS-ACTIVATED
100% DUTY CYCLE
200
190
180
V CC = CE = 3.3V
V BAT = V CHRG
8
7
6
5
V CC = CE = 3.3V
170
4
3
2
1
0
1MHz ADDRESS-
ACTIVATED
100% DUTY CYCLE
1MHz CE-ACTIVATED
50% DUTY CYCLE
160
150
140
3
2
1
0
V CHRG
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.0
3.1
3.2
3.3
3.4
3.5
3.6
0
0.2
0.4
0.6
0.8
1.0
1.0
V CC (V)
V CHRG PERCENT CHANGE
vs. TEMPERATURE
V CC = 3.3V
3.00
V CC (V)
V TP vs. TEMPERATURE
3.5
DELTA BELOW V CHRG (V)
DQ OUTPUT-VOLTAGE HIGH
vs. DQ OUTPUT-CURRENT HIGH
V CC = 3.3V
0.5
V BAT = V CHRG
2.95
3.3
3.1
0
2.90
2.9
-0.5
2.85
2.7
-1.0
-40
-15
10
35
60
85
2.80
-40
-15
10
35
60
85
2.6
-5
-4
-3
-2
-1
0
TEMPERATURE ( ° C)
DQ OUTPUT-VOLTAGE LOW
vs. DQ OUTPUT-CURRENT LOW
TEMPERATURE ( ° C)
RST OUTPUT-VOLTAGE LOW
vs. OUTPUT-CURRENT LOW
I OH (mA)
RST VOLTAGE
vs. V CC DURING POWER-UP
0.4
V CC = 3.3V
0.6
0.5
V CC = 2.8V
4.0
3.5
T A = +25 ° C
0.3
0.4
3.0
2.5
0.2
0.3
2.0
0.1
0.2
0.1
1.5
1.0
0.5
0
0
0
0
1
2
3
4
5
0
5
10
15
20
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
I OL (mA)
I OL (mA)
V CC POWER-UP (V)
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7