参数资料
| 型号： | PT7C43390WEX |
| 厂商： | Pericom |
| 文件页数： | 11/23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
19
Data Sheet
PT7C43390
2-Wire Real-time Clock Module
DC Electrical Characteristics
TA = -40 to +85°C, VDD = 3.0 V, DS-VT-200 crystal oscillator (CL = 6 pF, 32,768 Hz, Cg = 9.1 pF)
Parameter
Symbol
Applicable Pin
Conditions
Min.
Typ.
Max.
Unit
Current consumption 1
IDD1
-
Out of communication
-
0.40
0.65
A
Current consumption 2
IDD2
-
During communication
(SCK =100 kHz)
-
6.0
14.0
A
Input current leakage 1
IIZH
SCL, SDA
VIN = VDD
0.5
-
0.5
A
Input current leakage 2
IIZL
SCL, SDA
VIN = VSS
0.5
-
0.5
A
Output current leakage 1
IOZH
SDA,INT1,INT2
VOUT =VDD
0.5
-
0.5
A
Output current leakage 2
IOZL
SDA,INT1,INT2
VOUT =VSS
0.5
-
0.5
A
Input voltage 1
VIH
SCL, SDA
-
0.8×VDD
-
V
Input voltage 2
VIL
SCL, SDA
-
0.2×VDD
V
INT1
VOUT =0.4 V
1.0
1.4
-
mA
Output current 1
IOL1
INT2
VOUT =0.4 V
3.0
5.0
Output current 2
IOL2
SDA
VOUT =0.4 V
5
10
-
mA
Power supply voltage
detection voltage *1
VDET
-
Ta = 40 to +85°C
VDDTm +
0.15 *2
-
VDDTm +
0.4
V
*1. Power supply voltage detection voltage: Constantly maintains the relation of VDET > VDDTm (minimum time keeping voltage).
*2. Reference value
TA = -40 to +85°C, VDD = 5.0 V, DS-VT-200 crystal oscillator (CL = 6 pF, 32,768 Hz, Cg = 9.1 pF)
Parameter
Symbol
Applicable Pin
Conditions
Min.
Typ.
Max.
Unit
Current consumption 1
IDD1
-
Out of communication
-
0.45
0.7
A
Current consumption 2
IDD2
-
During communication
(SCK =100 kHz)
-
14
30
A
Input current leakage 1
IIZH
SCL, SDA
VIN = VDD
0.5
-
0.5
A
Input current leakage 2
IIZL
SCL, SDA
VIN = VSS
0.5
-
0.5
A
Output current leakage 1
IOZH
SDA,INT1,INT2
VOUT =VDD
0.5
-
0.5
A
Output current leakage 2
IOZL
SDA,INT1,INT2
VOUT =VSS
0.5
-
0.5
A
Input voltage 1
VIH
SCL, SDA
-
0.8×VDD
-
V
Input voltage 2
VIL
SCL, SDA
-
0.2×VDD
V
INT1
VOUT =0.4 V
1.0
1.4
-
mA
Output current 1
IOL1
INT2
VOUT =0.4 V
3.0
5.0
Output current 2
IOL2
SDA
VOUT =0.4 V
6
13
-
mA
Power supply voltage
detection voltage *1
VDET
-
Ta = 40 to +85°C
VDDTm +
0.15 *2
-
VDDTm +
0.4
V
*1. Power supply voltage detection voltage: Constantly maintains the relation of VDET > VDDTm (minimum time keeping voltage).
*2. Reference value
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