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| 型号： | MCP9802A5T-M/OTG |
| 厂商： | Microchip Technology |
| 文件页数： | 18/42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
5.3.2
SENSOR CONFIGURATION
REGISTER (CONFIG)
The MCP9800/1/2/3 has an 8-bit read/write
Configuration register that allows the user to select the
different features. These features include shutdown,
ALERT output select as comparator or interrupt output,
ALERT output polarity, fault queue cycle, temperature
measurement resolution and One-shot mode (single
conversion while in shutdown). These functions are
described in detail in the following sections.
REGISTER 5-3:
CONFIGURATION REGISTER (CONFIG) – ADDRESS < 0000 0001 >b
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
One-Shot
Resolution
Fault Queue
ALERT
COMP/INT
Shutdown
Polarity
bit 7
Legend:
bit 0
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
bit 5-6
bit 3-4
bit 2
bit 1
bit 0
ONE-SHOT bit
1 = Enabled
0 = Disabled (Power-up default)
?? ADC RESOLUTION bits
00 = 9 bit or 0.5°C (Power-up default)
01 = 10 bit or 0.25°C
10 = 11 bit or 0.125°C
11 = 12 bit or 0.0625°C
FAULT QUEUE bits
00 = 1 (Power-up default)
01 = 2
10 = 4
11 = 6
ALERT POLARITY bit
1 = Active-high
0 = Active-low (Power-up default)
COMP/INT bit
1 = Interrupt mode
0 = Comparator mode (Power-up default)
SHUTDOWN bit
1 = Enable
0 = Disable (Power-up default)
DS21909D-page 18
? 2010 Microchip Technology Inc.
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