MCP37231 datasheet(7/144 Pages) MICROCHIP

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 2014-2016 Microchip Technology Inc.

DS20005322D-page 7

MCP37231/21-200 AND MCP37D31/21-200

Digital I/O Pins

B18

ADR0

Digital Input SPI address selection pin (A0 bit). Tie to GND or DVDD18.(4)

A23

SLAVE

Slave or Master selection pin in AutoSync (12).

If not used, tie to GND.

B19

SYNC

Digital Input/

Output

Digital synchronization pin for AutoSync (12)

If not used, leave it floating.

B21

RESET

Digital Input Reset control input:

High: Normal operating mode

Low: Reset mode(5)

A26

CAL

Digital

Output

Calibration status flag digital output:

High: Calibration is complete

Low: Calibration is not complete(6)

B22

DCLK+

LVDS: Differential digital clock output (+)

CMOS: Digital clock output(7)

A27

DCLK-

LVDS: Differential digital clock output (-)

CMOS: Unused (leave floating)

TABLE 1-1:

PIN FUNCTION TABLE FOR VTLA-124 (CONTINUED)

Pin No.

Name

I/O Type

Description

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