MCP48CMB21 datasheet(39/106 Pages) MICROCHIP

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 2019 Microchip Technology Inc.

DS20006160A-page 39

MCP48CXBXX

3.0

PIN DESCRIPTIONS

Overviews of the pin functions are provided from

Section 3.1 to Section 3.10.

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:

MCP48CXBX1 (SINGLE-DAC) PIN FUNCTION TABLE

Symbol

I/O

Buffer

Type

Description

MSOP

10L

DFN

10L

QFN

16L

VDD

—

Supply Voltage

SPI Chip Select

VREF

Analog Voltage Reference Input/Output

VOUT

Analog Buffered Analog Voltage Output

4,5,6,7,

8,14,15

—

Not Internally Connected

LAT/HVC

DAC Wiper Register Latch/High-Voltage Command Pin

The Latch Pin allows the value in the volatile DAC registers

(wiper and configuration bits) to be transferred to the DAC

output (VOUT).

High-Voltage commands allow the User MTP configuration

bits to be written.

VSS

—

Ground Reference for all circuitries on the device

SDO

SPI Serial Data Output

SCK

SPI Serial Clock

SDI

SPI Serial Data Input

—

Exposed Thermal Pad, must be connected to VSS

Note 1:

A = Analog, I = Input, ST = Schmitt Trigger, O = Output, I/O = Input/Output, P = Power

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