MCP41HVX1 datasheet(21/90 Pages) MICROCHIP

21 / 90 page

 2013 Microchip Technology Inc.

DS20005207A-page 21

MCP41HVX1

3.0

PIN DESCRIPTIONS

The descriptions of the pins are listed in Table 3-1.

Additional descriptions of the device pins follows.

TABLE 3-1:

PINOUT DESCRIPTION FOR THE MCP41HVX1

Function

TSSOP

QFN

Symbol

Type

Buffer

Type

14L

20L

—

Positive Digital Power Supply Input

SCK

SPI Serial Clock pin

Chip Select

SDI

SPI Serial Data In pin

SDO

—

SPI Serial Data Out

WLAT

Wiper Latch Enable

= Received SPI Shift Register Buffer (SPIBUF) value is

transferred to Wiper register.

= Received SPI data value is held in SPI Shift Register

Buffer (SPIBUF).

SHDN

IST

Shutdown

DGND

—

Ground

8, 9, 10, 17,

18, 19, 20

—

Pin not internally connected to die. To reduce noise

coupling, connect pin either to DGND or VL.

V-

—

Analog Negative Potential Supply

P0B

I/O

Potentiometer 0 Terminal B

P0W

I/O

Potentiometer 0 Wiper

Terminal

P0A

I/O

Potentiometer 0 Terminal A

V+

—

Analog Positive Potential Supply

—

Exposed Pad, connect to V- signal or Not Connected

(floating). (Note 1)

Legend:

A = Analog

ST = Schmitt Trigger

I = Input

O = Output

I/O = Input/Output

P = Power

Note 1:

The QFN package has a contact on the bottom of the package. This contact is conductively connected to

the die substrate, and therefore should be unconnected or connected to the same ground as the device’s

V- pin.

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