TC1321EUA View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC1321EUA

10-Bit Digital-to-Analog Converter with Two-Wire Interface

Microchip Technology 

TC1321

2.0 PIN DESCRIPTIONS

The descriptions of the pins are listed in Table 2-1.

TABLE 2-1: PIN FUNCTION TABLE

Pin Number

Pin Name

Type

1

VREF

Input

2

SDA

Bi-Directional

3

SCL

Input

4

VSS

Power

5

VOUT

Output

6

NC

None

7

DAC-OUT Output

8

VDD

Power

Description

Voltage Reference Input Pin

Serial Data Input/Output Pin

Serial Clock Input Pin

Ground Reference Pin

Buffered Analog Voltage Output Pin

No connection

Unbuffered Analog Voltage Output Pin

Positive Power Supply Input Pin

2.1 External Voltage Reference Input

(VREF)

Voltage Reference Input can range from 0V to 1.2V

below VDD.

2.2 Bi-Directional Serial Data Input

and Output (SDA)

Serial data is transferred on the SMBus in both

directions using this pin.

2.3 Serial Clock Input (SCL)

SMBus/I2C serial clock. Clocks data into and out of the

TC1321.

2.6 No Connection (NC)

There is not a connection at this pin.

2.7 Output (DAC-OUT)

Unbuffered DAC output voltage. This voltage is a

function of the reference voltage and the contents of

the DATA register. This output is unbuffered and care

must be taken that the pin is connected only to a

high-impedance node.

2.8 Positive Power Supply Input (VDD)

See the Electrical Specifications table.

2.4 Supply Power Ground (VSS)

The ground reference pin.

2.5 Output (VOUT)

Buffered DAC output voltage. This voltage is a function

of the reference voltage and the contents of the DATA

register.

 2010 Microchip Technology Inc.

DS21387C-page 5

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