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MCP3564-E/ST Datasheet(PDF) 88 Page - Microchip Technology |
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MCP3564-E/ST Datasheet(HTML) 88 Page - Microchip Technology |
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88 / 108 page  MCP3561/2/4 DS20006181C-page 88 2019-2021 Microchip Technology Inc. 8.7 MULTIPLEXER (MUX) REGISTER Name Bits Address Cof MUX 8 0x6 R/W REGISTER 8-7: MUX: MULTIPLEXER REGISTER R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-1 MUX_VIN+[3:0](2,3) MUX_VIN-[3:0](2,3) bit 7 bit 0 Legend: 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 7-4 MUX_VIN+ Input Selection(2,3) 1111 = Internal VCM 1110 = Internal Temperature Sensor Diode M (Temp Diode M)(1) 1101 = Internal Temperature Sensor Diode P (Temp Diode P)(1) 1100 = REFIN- 1011 = REFIN+ 1010 = Reserved (do not use) 1001 = AVDD 1000 = AGND 0111 = CH7 0110 = CH6 0101 = CH5 0100 = CH4 0011 = CH3 0010 = CH2 0001 = CH1 0000 = CH0 (default) Bit 3-0 MUX_VIN- Input Selection(2,3) 1111 = Internal VCM 1110 = Internal Temperature Sensor Diode M (Temp Diode M)(1) 1101 = Internal Temperature Sensor Diode P (Temp Diode P)(1) 1100 = REFIN- 1011 = REFIN+ 1010 = Reserved (do not use) 1001 = AVDD 1000 = AGND 0111 = CH7 0110 = CH6 0101 = CH5 0100 = CH4 0011 = CH3 0010 = CH2 0001 = CH1 (default) 0000 = CH0 Note 1: Selects the internal temperature sensor diode and forces a fixed current through it. For a correct temperature reading, the MUX[7:0] selection should be equal to 0xDE. 2: For MCP3562, the codes, ‘0111/0110/0101/0100’, correspond to a floating input and should be avoided. 3: For MCP3561, the codes, ‘0111/0110/0101/0100/0011/0010’, correspond to a floating input and should be avoided. |
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