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MCP4728 датащи(PDF) 38 Page - Microchip Technology

номер детали MCP4728
подробное описание детали  12-Bit, Quad Digital-to-Analog Converter with EEPROM Memory
PDF  66 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP4728 датащи(HTML) 38 Page - Microchip Technology

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MCP4728
DS22187C-page 38
© 2009 Microchip Technology Inc.
FIGURE 5-7:
Fast Write Command: Write DAC Input Registers Sequentially from Channel A to D.
1st byte
DAC Input Register of Channel A
2nd Byte
R/W
Device Addressing
ACK
(MCP4728)
(C2 C1)
3rd Byte
Update Channel A DAC Input Register at this ACK pulse.
Repeat Bytes
Start
Stop
Fast Write
Note 1: X is a don’t care bit. V
OUT can be updated after the last byte’s ACK pulse is issued and
by bringing down the LDAC pin to “Low”.
2nd Byte
ACK
(MCP4728)
3rd Byte
Update Channel B DAC Input Register at this ACK pulse.
DAC Input Register of Channel B
S
1
1
0
0
A2A1A0
0
A
0
0
PD1 PD0 D11 D10 D9 D8
A
D7D6D5 D4 D3D2D1 D0
A
Command Type Bits:
C2=0
C1=0
C0=X
Command
X
X PD1 PD0 D11 D10 D9 D8
A
D7D6D5D4D3D2D1D0
A
2nd Byte
ACK
(MCP4728)
3rd Byte
Update Channel C DAC Input Register at this ACK pulse.
DAC Input Register of Channel C
X
X PD1 PD0 D11 D10 D9 D8
A
D7 D6D5D4 D3 D2D1D0
A
2nd Byte
ACK
(MCP4728)
3rd Byte
Update Channel D DAC Input Register at this ACK pulse.
DAC Input Register of Channel D
X
X PD1 PD0 D11 D10 D9 D8
A
D7D6 D5 D4D3D2 D1 D0
A
P



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