MCP3901A0-E/SS Microchip Technology, MCP3901A0-E/SS Datasheet - Page 35

• Manufacturer Part Number: MCP3901A0-E/SS
• Description: IC ENERGY METER AFE 2CH 20-SSOP
• Manufacturer: Microchip Technology

Specifications of MCP3901A0-E/SS

• Number Of Bits: 24
• Number Of Channels: 2
• Power (watts): 10mW
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 2.7 V ~ 5.5 V
• Package / Case: 20-SSOP (0.200", 5.30mm Width)
• Ic Function: Analog Front End Device 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: 20
• No. Of Channels: 2
• Input Voltage: 2.2 V to 2.6 V
• Mounting Style: SMD/SMT
• Supply Voltage Max: 5.5V
• Rohs Compliant: Yes
• Interface Type: SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.6
In this SPI mode, the clock Idles low. For the MCP3901,
this means that there will be a rising edge before there
is a falling edge.
FIGURE 6-4:
FIGURE 6-5:
© 2010 Microchip Technology Inc.
CS
SCK
SDI
SDO
CS
SCK
SDI
SDO
MCU and MCP3901 Latch
Bits on the Rising Edge
SPI MODE 0,0 – Clock Idle Low,
Read/Write Examples
MCU and MCP3901 Latch
Data Transitions on
HI-Z
Bits on the Rising Edge
the Falling Edge
HI-Z
Data Transitions on
the Falling Edge
A6
Device Read (SPI Mode 0,0 – Clock Idles Low).
Device Write (SPI Mode 0,0 – Clock Idles Low).
A6
A5 A4 A3 A2 A1 A0
HI-Z
A5 A4 A3 A2 A1
R/W
A0
R/W
D7
D7
(ADDRESS) DATA
D6 D5 D4 D3 D2 D1
(ADDRESS) DATA
D6 D5 D4 D3 D2 D1
HI-Z
D0
D0
D7
D7
(ADDRESS + 1) DATA
(ADDRESS + 1) DATA
D6 D5 D4 D3 D2 D1
D6 D5 D4 D3 D2 D1
D0
D0
D7 OF (ADDRESS + 2) DATA
MCP3901
D7 OF (ADDRESS + 2) DATA
DS22192C-page 35
HI-Z
HI-Z