MCP3909RD-1PH1 Microchip Technology, MCP3909RD-1PH1 Datasheet - Page 32

• Manufacturer Part Number: MCP3909RD-1PH1
• Description: BOARD DES MCP3909 ENERGY METER
• Manufacturer: Microchip Technology

Specifications of MCP3909RD-1PH1

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP3909, PIC18F85J90
• Primary Attributes: Single Phase Shunt Energy Meter
• Secondary Attributes: 16 Bit ADC
• Ic Function: Single Phase Energy Measurement IC
• Supply Voltage Range: 4.5V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: SSOP
• No. Of Pins: 24
• Interface Type: SPI
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MCP3909
FIGURE 5-8:
DS22025B-page 32
(Mode 0,1: SCK idles low).
NEG / SDO
NEG / SDO
F2 / SCK
F2 / SCK
F1 / SDI
F1 / SDI
F0 / CS
F0 / CS
MCU Transmit Buffer
MCU Receive Buffer
Data is clocked out
on rising edges
Data is clocked out
on rising edges
MCU Transmit Buffer
MCU Receive Buffer
Device on falling edges of SCK
MCU latches data from
Device on falling edges of SCK
MCU latches data from
Dual Channel Output Mode SPI Communication using 8-bit segments
D15 D14 D13 D12
D15
X
17
CH1 Data stored into MCU receive regis-
ter after transmission of third 8 bits
D15
1
D15 D14 D13 D12
D14 D13 D12 D11
X
X
18
CH0 Data stored into MCU receive regis-
ter after transmission of first 8 bits
2
D14 D13 D12 D11
X
X
19
3
X
X
20
4
D11 D10 D9
X
X
21
5
D11 D10 D9
X
D10 D9
X
22
6
D10 D9
CHANNEL 0
CHANNEL 1
X
X
Don’t Care
Don’t Care
23
7
D8
X
X
D8
24
8
D8
D8
X
D7
D7
X
CH1 Data stored into MCU receive register
after transmission of fourth 8 bits
D7
25
9
D7
D6
X
X
D6
CH0 Data stored into MCU receive register
after transmission of second 8 bits
26
10
D6
D6
D5
X
X
D5
27
11
D5
D5
D4 D3
X
X
D4
28
12
D4 D3
D4 D3
X
X
D3
29
13
© 2009 Microchip Technology Inc.
X
D2
X
D2
30
14
D2
D2
D1
X
X
D1
31
15
D1
D1
D0
X
X
D0
32
16
D0
D0
X