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MCP47CMB21 Datasheet(PDF) 53 Page - Microchip Technology

Part # MCP47CMB21
Description  8/10/12-Bit Digital-to-Analog Converters, 1 LSb INL Single/Dual Voltage Outputs with I2C Interface
PDF  124 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP47CMB21 Datasheet(HTML) 53 Page - Microchip Technology

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 2018-2019 Microchip Technology Inc.
DS20006089B-page 53
MCP47CXBXX
4.2.5
DEVICE REGISTERS
Register 4-1 shows the format of the DAC Output Value
registers for the volatile memory locations. These
registers will be either 8 bits, 10 bits or 12 bits wide. The
values are right justified.
REGISTER 4-1:
DAC0 (00h/10h) AND DAC1 (01h/11h) OUTPUT VALUE REGISTERS
(VOLATILE/NONVOLATILE)
U-0
U-0
U-0
U-0 R/W-n R/W-n R/W-n R/W-n R/W-n R/W-n R/W-n R/W-n R/W-n R/W-n R/W-n R/W-n
12-bit
——
——
D11
D10
D09
D08
D07
D06
D05
D04
D03
D02
D01
D00
10-bit
——
——
——
D09
D08
D07
D06
D05
D04
D03
D02
D01
D00
8-bit
—
—
—
—
—
—
—
—
D07
D06
D05
D04
D03
D02
D01
D00
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
= 12-bit device
=
10-bit device
= 8-bit device
12-bit
10-bit
8-bit
bit 15-12 bit 15-10 bit 15-8
Unimplemented: Read as ‘0’
bit 11-0
—
—
D11:D00: DAC Output Value bits – 12-bit devices
FFFh = Full-scale output value
7FFh = Mid-scale output value
000h = Zero scale output value
—
bit 9-0
—
D09:D00: DAC Output Value bits – 10-bit devices
3FFh = Full-scale output value
1FFh = Mid-scale output value
000h = Zero scale output value
—
—
bit 7-0
D07:D00: DAC Output Value bits – 8-bit devices
FFh = Full-scale output value
7Fh = Mid-scale output value
00h
= Zero scale output value



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