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MCP48FVB28 Datasheet(PDF) 60 Page - Microchip Technology |
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MCP48FVB28 Datasheet(HTML) 60 Page - Microchip Technology |
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60 / 112 page  MCP48FXBX4/8 DS20006362A-page 60 2020 Microchip Technology Inc. Register 4-3 shows the format of the Power-Down Control register. Each DAC has two bits to control the Power-Down state of the DAC. This register is for both volatile and nonvolatile memory locations. REGISTER 4-3: POWER-DOWN CONTROL REGISTER (ADDRESSES 09h, 19h; VOLATILE/NONVOLATILE) R/W-nR/W-n R/W-nR/W-n R/W-nR/W-n R/W-n R/W-n R/W-nR/W-n R/W-nR/W-n R/W-nR/W-n R/W-n R/W-n Octal PD7B PD7A PD6B PD6A PD5B PD5A PD4B PD4A PD3B PD3A PD2B PD2A PD1B PD1A PD0B PD0A Quad —(1) —(1) —(1) —(1) —(1) —(1) —(1) —(1) PD0B PD0A PD0B PD0A PD0B PD0A PD0B PD0A bit 15 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 = Quad-channel device = Octal-channel device Octal Quad — bit 15-8 Unimplemented: Read as ‘1’ bit 15-0 bit 7-0 PDnB:PDnA: DAC Power-Down Control(2) 11 = Powered down – VOUT is open circuit 10 = Powered down – VOUT is loaded with a 125 k resistor to ground 01 = Powered down – VOUT is loaded with a 1 k resistor to ground 00 = Normal operation (not powered down) Note 1: Unimplemented bit, read as ‘0’. 2: See Table 5-4 for more details. |
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