TC1322_05 Datasheet, PDF (5/16 Pages) Microchip Technology – 12-Bit Digital-to-Analog Converter with Two-Wire Interface

TC1322
2.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1: PIN FUNCTION TABLE
Pin Number
1
2
3
4
5
6
7
8
Symbol
V_REF
SDA
SCL
GND
V_OUT
NC
DAC-OUT
V_DD
Type
Input
Bi-Directional
Input
Power
Output
None
Output
Power
Description
Input. Voltage Reference Input can range from 0V to 1.2V below V_DD.
Bi-directional. Serial data is transferred on the SMBus in both directions
using this pin.
Input. SMBus serial clock. Clocks data into and out of the TC1322.
Ground.
Output. Buffered DAC output voltage. This voltage is a function of the
reference voltage and the contents of the DATA register.
No connection.
Output. Unbuffered DAC output voltage. This voltage is a function of the ref-
erence 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.
Input. Positive power supply input. See electrical specifications.
© 2005 Microchip Technology Inc.
DS21388C-page 5