Accurate I2C RTC with Integrated TCXO/Crystal/FRAM _____________" />
參數(shù)資料
型號: DS32C35-33#T&R
廠商: Maxim Integrated Products
文件頁數(shù): 16/22頁
文件大小: 0K
描述: IC RTC ACCURATE I2C 3.3V 20-SOIC
產(chǎn)品變化通告: Product Discontinuation 28/Nov/2011
標準包裝: 1,000
類型: 時鐘/日歷
特點: 警報器,F(xiàn)RAM,閏年,方波輸出,TCXO/晶體
存儲容量: 8KB
時間格式: HH:MM:SS(12/24 小時)
數(shù)據(jù)格式: YY-MM-DD-dd
接口: I²C,2 線串口
電源電壓: 2.7 V ~ 3.63 V
電壓 - 電源,電池: 2.3 V ~ 3.6 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 20-SOIC W
包裝: 帶卷 (TR)
DS32B35/DS32C35
Accurate I2C RTC with Integrated
TCXO/Crystal/FRAM
_____________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.7V to 3.63V, TA = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VBAT Leakage Current
(VCC Active)
IBATLKG
25
100
nA
Output Frequency
fOUT
VCC = 3.3V or VBAT = 3.3V
32.768
kHz
-40°C to 0°C
-3.5
+3.5
0°C to +40°C
-2
+2
Frequency Stability vs.
Temperature
f/fOUT
VCC = 3.3V or
VBAT = 3.3V
-40°C to +85°C
-3.5
+3.5
ppm
Frequency Stability vs. Voltage
f/V
1
ppm/V
-40°C
0.7
+25°C
0.1
+70°C
0.4
Frequency Sensitivity per LSB
f/LSB
Specified at:
+85°C
0.8
ppm
Temperature Sensor Accuracy
Temp
VCC = 3.3V or VBAT = 3.3V
-3
+3
°C
Temperature Conversion Time
tCONV
125
200
ms
ELECTRICAL CHARACTERISTICS
(VCC = 0V, VBAT = 2.3V to 3.6V, TA = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Active Battery Current
IBATA
EOSC = 0, BBSQW = 0,
SCL = 400kHz (Note 5)
VBAT = 3.6V
70
μA
Timekeeping Battery Current
IBATT
EOSC = 0, BBSQW = 0,
EN32kHz = 1,
SCL = SDA = 0V or
SCL = SDA = VBAT (Note 6)
VBAT = 3.6V
0.84
3.0
μA
Temperature Conversion Current
IBATTC
EOSC = 0, BBSQW = 0,
SCL = SDA = 0V or
SCL = SDA = VBAT
VBAT = 3.6V
575
μA
Data-Retention Current
(RTC/TCXO Registers)
IBATDR
EOSC = 1, SCL = SDA = 0V, +25°C
100
nA
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