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MCP3909-E/SS 데이터시트(PDF) 31 Page - Microchip Technology

부품명 MCP3909-E/SS
상세설명  Energy Metering IC with SPI Interface and Active Power Pulse Output
PDF  44 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP3909-E/SS 데이터시트(HTML) 31 Page - Microchip Technology

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 2006-2012 Microchip Technology Inc.
DS22025C-page 31
MCP3909
FIGURE 5-8:
Dual Channel Output Mode SPI Communication using 8-bit segments
(Mode 0,1: SCK idles low).
1
2
3
4
5
6
7
8
9
101112
13
14
15
16
D14 D13 D12 D11
D7
D6 D5 D4 D3 D2 D1 D0
MCU latches data from
Data is clocked out
on rising edges
Device on falling edges of SCK
Don’t Care
D7 D6 D5 D4 D3 D2 D1 D0
D11 D10 D9 D8
MCU Transmit Buffer
MCU Receive Buffer
CH0 Data is stored into the MCU
receive register after transmission
of the first 8 bits
CH0 Data is stored into the MCU
receive register after transmission
of the second 8 bits
D15
D10 D9 D8
D15 D14 D13 D12
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
MCU latches data from
Data is clocked out
on rising edges
Device on falling edges of SCK
Don’t Care
MCU Transmit Buffer
MCU Receive Buffer
CH1 Data is stored into the MCU
receive register after transmission
of the third 8 bits
CH1 Data is stored into the MCU
receive register after transmission
of the fourth 8 bits
CHANNEL 0
CHANNEL 1
D14 D13 D12 D11
D7
D6 D5 D4 D3 D2 D1 D0
D15
D10 D9 D8
F1 / SDI
F2 / SCK
NEG / SDO
F0 / CS
F1 / SDI
F2 / SCK
NEG / SDO
F0 / CS
X
XXX
XX
X
X
XX
X
X
X
X
X
X
X
X
X
XXX
X
X
XX
X
X
X
X
X
X
D7 D6 D5 D4 D3 D2 D1 D0
D11 D10 D9 D8
D15 D14 D13 D12



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