3.3V Single-Piece 4Mb Nonvolatile SRAM
with Clock
Typical Operating Characteristics (continued)
(V CC = 3.3V, T A = +25 ° C, unless otherwise noted.)
1.0
0.5
0
-0.5
-1.0
V CHARGE PERCENT CHANGE
vs. TEMPERATURE
V CC = 3.3V,
V BAT = V CHARGE
3.00
2.95
2.90
2.85
2.80
WRITE PROTECTION VOLTAGE
vs. TEMPERATURE
3.5
3.3
3.1
2.9
2.7
2.5
DQ OUTPUT-VOLTAGE HIGH
vs. DQ OUTPUT-CURRENT HIGH
V CC = 3.3V
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-5
-4
-3
-2
-1
0
TEMPERATURE ( ° C)
DQ OUTPUT-VOLTAGE LOW
vs. DQ OUTPUT-CURRENT LOW
0.4
TEMPERATURE ( ° C)
0.6
IRQ/FT OUTPUT-VOLTAGE LOW
vs. OUTPUT-CURRENT LOW
I OH (mA)
V CC = 3.3V
0.5
0.3
0.4
0.2
0.3
0.2
0.1
0.1
0
0
0
1
2
3
4
5
0
5
10
15
20
I OL (mA)
RST OUTPUT-VOLTAGE LOW
vs. OUTPUT-CURRENT LOW
I OL (mA)
RST VOLTAGE
vs. V CC DURING POWER-UP
0.6
0.5
V CC = 2.8V
4.0
3.5
T A = +25°C
3.0
0.4
0.3
0.2
0.1
0
2.5
2.0
1.5
1.0
0.5
0
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)
V CC POWER-UP (V)
8
_____________________________________________________________________
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