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MCP47DA1 Datasheet(PDF) 40 Page - Microchip Technology

Part # MCP47DA1
Description  6-Bit Windowed Volatile DAC with Command Code
PDF  76 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP47DA1 Datasheet(HTML) 40 Page - Microchip Technology

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MCP47DA1
DS25118D-page 40
 2012-2013 Microchip Technology Inc.
FIGURE 5-14:
I2C Read Command Format.
FIGURE 5-15:
I2C Read Communication Behavior.
Stop bit
Slave Address Byte
Command Code
1
01 0
S
11 0 0
0
A
00 0 A
Slave Address Byte
Data Byte
AD3
0 D6 D5 D4
D2 D1 D0 A(2) P
Read/Write bit (0 = Write)
00
0 0
11
0 1
01
0 1
S = Start Condition
P = Stop Condition
A = Acknowledge
X = Don’t Care
R/W = Read/Write bit
D6:D0 = Data bits
Legend
S
Read/Write bit (1 = Read)
Note 1: Master device is responsible for ACK/NACK signal. If a NACK signal occurs, the MCP47DA1 will abort
this transfer and release the bus.
2: The Master device will Not ACK, and the MCP47DA1 will release the bus so the master device can
generate a Stop or Repeated Start condition.
Read 1 Byte with Command Code = 00h
Read 2 Byte with Command Code = 00h
SSlave Address
R
/
W
A
C
K Command Code
A
C
K
R
SSlave Address
R
/
W
A
C
K
Master
S 01 011 100 100 000 0001 S 010 111 011
MCP47DA1
00
0
I2C™ Bus
S 01 011 100 000 000 0000 S 010 111 010
Data Byte
A
C
KP
Master
1 P
MCP47DA1
0 d ddd ddd 1
I2C Bus
0 d ddd ddd 1 P
SSlave Address
R
/
W
A
C
K Command Code
A
C
K
R
SSlave Address
R
/
W
A
C
K
Master
S 01 011 100 100 000 0001 S 010 111 011
MCP47DA1
00
0
I2C Bus
S 01 011 100 000 000 0000 S 010 111 010
Data Byte
A
C
KData Byte
A
C
KP
Master
01 P
MCP47DA1
0d ddd ddd 10 ddd ddd d 1
I2C Bus
0 d ddd ddd 00 ddd ddd d 1 P



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