MCP48FVB21 datasheet(27/84 Pages) MICROCHIP

27 / 84 page

 2015 Microchip Technology Inc.

DS20005466A-page 27

MCP48FVBXX

3.0

PIN DESCRIPTIONS

Overviews of the pin functions are provided in

Sections 3.1, “Positive Power Supply Input (VDD)”

through 3.10, “SPI - Serial Clock Pin (SCK)”. The

descriptions of the pins for the single-DAC output

device are listed in Table 3-1, and descriptions for the

dual-DAC output device are listed in Table 3-2.

TABLE 3-1:

MCP48FVBX1 (SINGLE-DAC) PINOUT DESCRIPTION

MSOP-10LD

Symbol

I/O

Buffer

Type

Standard Function

1VDD

—

Supply Voltage Pin

2CS

SPI Chip Select Pin

3VREF0

Analog

Voltage Reference Input Pin

4VOUT0

Analog

Buffered Analog Voltage Output Pin

—

Not Internally Connected

6LAT0/HVC

HV ST

DAC Register Latch/High-Voltage Command Pin.

Latch Pin allows the value in the Serial Shift Register to transfer to the

volatile DAC register.

(The HVC signal is present to indicate voltage level compatibility with

the nonvolatile device family (MCP48FEBXX)).

7VSS

—

Ground Reference Pin for all circuitries on the device

SDO

—

SPI Serial Data Output Pin

SCK

SPI Serial Clock Pin

SDI

SPI Serial Data Input Pin

Legend:

A = Analog

ST = Schmitt Trigger HV = High Voltage

I = Input

O = Output

I/O = Input/Output

P = Power

TABLE 3-2:

MCP48FVBX2 (DUAL-DAC) PINOUT DESCRIPTION

MSOP-10LD

Symbol

I/O

Buffer

Type

Standard Function

1VDD

—

Supply Voltage Pin

2CS

SPI Chip Select Pin

3VREF

Analog

Voltage Reference Input Pin (for DAC0 and DAC1)

4VOUT0

Analog

Buffered Analog Voltage Output 0 Pin

5VOUT1

Analog

Buffered Analog Voltage Output 1 Pin

6LAT/HVC

HV ST

DAC Register Latch/High-Voltage Command Pin.

Latch Pin allows the value in the Serial Shift Register to transfer to the

volatile DAC register (for DAC0 and DAC1).

(The HVC signal is present to indicate voltage level compatibility with

the nonvolatile device family (MCP48FEBXX)).

7VSS

—

Ground Reference Pin for all circuitries on the device

SDO

—

SPI Serial Data Output Pin

SCK

SPI Serial Clock Pin

SDI

SPI Serial Data Input Pin

Legend:

A = Analog

ST = Schmitt Trigger HV = High Voltage

I = Input

O = Output

I/O = Input/Output

P = Power

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