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| 型号： | MCP9802A5T-M/OTG |
| 厂商： | Microchip Technology |
| 文件页数： | 9/42页 |
| 文件大小： | 0K |
| 描述： | IC SENSOR THERMAL 2.7V SOT23-5 |
| 标准包装： | 1 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 125°C |
| 精确度： | ±2°C（最小值） |
| 拓扑： | ADC（三角积分型），寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 无 |
| 输出风扇： | 是 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 剪切带 (CT) |
| 其它名称： | MCP9802A5T-MOTGCT MCP9802A5T-MOTGRCT MCP9802A5T-MOTGRCT-ND |
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MCP9800/1/2/3
3.0
PIN DESCRIPTION
TABLE 3-1:
MCP9800
PIN FUNCTION TABLE
MCP9801
MCP9802
SOT-23-5
5
4
3
2
—
—
—
1
MCP9803
MSOP, SOIC
1
2
3
4
5
6
7
8
Symbol
SDA
SCLK
ALERT
GND
A2
A1
A0
V DD
Function
Bidirectional Serial Data
Serial Clock Input
Temperature Alert Output
Ground
Address Select Pin (bit 2)
Address Select Pin (bit 1)
Address Select Pin (bit 0)
Power Supply Input
3.1
Serial Data Pin (SDA)
3.5
ALERT Output
The SDA is a bidirectional input/output pin, used to
serially transmit data to and from the host controller.
This pin requires a pull-up resistor to output data.
The MCP9800/1/2/3’s ALERT pin is an open-drain
output pin. The device outputs an alert signal when the
ambient temperature goes beyond the
user-programmed temperature limit.
3.2 Serial Clock Pin (SCLK)
The SCLK is a clock input pin. All communication and
3.6
Address Pins (A2, A1, A0)
timing is relative to the signal on this pin. The clock is
generated by the host controller on the bus.
3.3 Power Supply Input (V DD )
The V DD pin is the power pin. The operating voltage, as
specified in the DC electrical specification table, is
applied on this pin.
These pins are device or slave address input pins and
are available only with the MCP9801/03. The device
addresses for the MCP9800/02 are factory-set.
The address pins are the Least Significant bits (LSb) of
the device address bits. The Most Significant bits
(MSb) (A6, A5, A4, A3) are factory-set to < 1001 >. This
3.4
Ground (GND)
TABLE 3-2:
Device
SLAVE ADDRESS
A6 A5 A4 A3
A2
A1
A0
The GND pin is the system ground pin.
MCP9800/02A0
MCP9800/02A1
MCP9800/02A2
MCP9800/02A3
MCP9800/02A4
MCP9800/02A5
MCP9800/02A6
MCP9800/02A7
MCP9801/03
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
X
0
0
1
1
0
0
1
1
X
0
1
0
1
0
1
0
1
X
? 2010 Microchip Technology Inc.
Note:
User-selectable address is shown by X.
DS21909D-page 9
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