参数资料
| 型号： | PT7C43390WEX |
| 厂商： | Pericom |
| 文件页数： | 10/23页 |
| 文件大小： | 0K |
| 描述： | IC REAL TIME CLOCK 8SOIC |
| 标准包装： | 1 |
| 类型： | 时钟/日历 |
| 特点： | 警报器，闰年，方波输出 |
| 时间格式： | HH:MM:SS（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.3 V ~ 5.5 V |
| 电压 - 电源，电池： | 1.1 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 标准包装 |
| 其它名称： | PT7C43390WEXDKR |
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PT0280(08/09)
Ver: 3
18
Data Sheet
PT7C43390
2-Wire Real-time Clock Module
6)
Free register access
*1. During reading, set NO_ACK to 1.
Maximum Ratings
Storage Temperature…………………………………………..- 55oC to +125oC
Ambient Temperature with Power Applied……………………-40 oC to +85 oC
SupplyVoltagetoGroundPotential(VcctoGND)………………….- 0.3 to +6.5V
DCInput(SCL,SDA)...………….. ……………………………… - 0.3 to +6.5V
DCOutputVoltage(SDA,INT1,INT2pin) ………………………..- 0.3 to +6.5V
Power Dissipation……………………………………………………… 320mW
(dependon package)
Recommended Operating Conditions
Symbol
Description
Test Conditions
Min
Type
Max
Unit
VDD
Power voltage
TA=-40 to + 85C
1.3
3.0
5.5
V
VDH
Time keeping voltage range
TA=-40 to + 85C
VDDTm
-
5.5
V
VDDT
Register hold voltage
TA=-40 to + 85C
VDDTm
-
5.5
V
VDDTm
Minimum time keeping voltage range
TA=-40 to + 85C
0.9*1
-
1.1
V
CL
Crystal oscillator CL value
-
7.0
pF
TA
Operating temperature
VDD=1.3 to 5.5V
-40
+25
+85
C
*1. Reference value
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other condi-
tions above those indicated in the operational sec-
tions of this specification is not implied. Exposure
to absolute maximum rating conditions for extended
periods may affect reliability.
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