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TC1322 Datasheet(PDF) 5 Page - Microchip Technology |
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TC1322 Datasheet(HTML) 5 Page - Microchip Technology |
5 / 16 page © 2002 Microchip Technology Inc. DS21388B-page 5 TC1322 2.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1. TABLE 2-1: PIN FUNCTION TABLE Pin Number Symbol Type Description 1VREF Input Input. Voltage Reference Input can range from 0V to 1.2V below VDD. 2 SDA Bi-Directional Bi-directional. Serial data is transferred on the SMBus in both directions using this pin. 3 SCL Input Input. SMBus serial clock. Clocks data into and out of the TC1322. 4 GND Power Ground. 5VOUT Output Output. Buffered DAC output voltage. This voltage is a function of the reference voltage and the contents of the DATA register. 6 NC None No connection. 7 DAC-OUT Output 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. 8VDD Power Input. Positive power supply input. See electrical specifications. |
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