MCP3002

DS21294D-page 18

© 2008 Microchip Technology Inc.

FIGURE 5-1:

Communication with the MCP3002 using MSB first format only.

FIGURE 5-2:

Communication with MCP3002 using LSB first format.

CS

CLK

HI-Z

Null

Bit B9 B8 B7 B6 B5 B4 B3 B2 B1 B0*

HI-Z

* After completing the data transfer, if further clocks are applied with CS low, the A/D Converter will output

zeros indefinitely. See Figure 5-2 for details on obtaining LSB first data.

becomes a high-impedance node.

ODD/

SIGN

Don’t Care

Null

Bit B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 B1 B2 B3 B4 B5 B6 B7* B8 B9

CS

CLK

HI-Z

HI-Z

(MSB)

Power Down

* After completing the data transfer, if further clocks are applied with CS low, the A/D Converter will output zeros

indefinitely.

** t

high-impedance node, leaving the CLK running to clock out LSB first data or zeroes.

Don’t Care