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MCP4821 Datasheet(PDF) 23 Page - Microchip Technology

Part # MCP4821
Description  SPI Interface with 20 MHz Clock Support
PDF  50 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP4821 Datasheet(HTML) 23 Page - Microchip Technology

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 2010-2015 Microchip Technology Inc.
DS20002249B-page 23
MCP4802/4812/4822
FIGURE 5-1:
Write Command for MCP4822 (12-bit DAC).
FIGURE 5-2:
Write Command for MCP4812 (10-bit DAC).
FIGURE 5-3:
Write Command for MCP4802 (8-bit DAC).
SDI
SCK
CS
0
2
1
A/B
— GA SHDN D11 D10
config bits
12 data bits
LDAC
3
4
D9
5
6
7
D8 D7 D6
8
9
10
12
D5
D4 D3 D2 D1 D0
11
13 14
15
VOUT
(Mode 1,1)
(Mode 0,0)
SDI
SCK
CS
0
2
1
A/B
— GA SHDN D9
D8
config bits
12 data bits
LDAC
3
4
D7
5
6
7
D6 D5 D4
8
9
10
12
D3
D2 D1 D0
X
X
11
13 14
15
VOUT
(Mode 1,1)
(Mode 0,0)
Note:
X = “don’t care” bits.
SDI
SCK
CS
0
2
1
A/B
— GA SHDN
config bits
12 data bits
LDAC
3
4
5
6
7
X
D7
D6
8
9
10
12
D5
D4
D3 D2 D1 D0
11
13 14
15
VOUT
(Mode 1,1)
(Mode 0,0)
XX
X
Note:
X = “don’t care” bits.



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