DS3234(2006) 查看數據表（PDF） - Maxim Integrated
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DS3234 Datasheet PDF : 20 Pages
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Extremely Accurate SPI Bus RTC with
Integrated Crystal and SRAM
(VCC = +3.3V, TA = +25°C, unless otherwise noted.)
STANDBY SUPPLY CURRENT
vs. SUPPLY VOLTAGE
150
RST ACTIVE
125
INPUTS = GND
100
75
50
25
0
2.3 2.8 3.3 3.8 4.3 4.8 5.3
VCC (V)
BATTERY CURRENT
vs. TEMPERATURE
850
VCC = 0V
BB32kHz = 0
800 BBSQW = 0
VBAT = 3.4V
750
VBAT = 3.0V
700
650
600
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
500
450
400
350
300
250
200
0
Typical Operating Characteristics
BATTERY CURRENT
vs. SUPPLY VOLTAGE
2600
VCC = 0V
2350 BB32kHz = 0
BBSQW = 1
2100
1850
1600
1350
1100
850
BBSQW = 0
600
2.3
2.8
3.3
3.8
SUPPLY VOLTAGE (VBAT)
FREQUENCY DEVIATION
vs. TEMPERATURE vs. AGING VALUE
65
55
AGING = -128
45
35
AGING = -33
25
AGING = 0
15
5
-5
-15
-25
AGING = 127
-35
AGING = 32
-45
-40 -20 0
20 40 60 80
TEMPERATURE (°C)
ICCA vs. DOUT LOAD
SCLK = 4MHz
10
20
30
40
CAPACITANCE (pF)
_____________________________________________________________________ 7
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