TC1920 datasheet(39/78 Pages) INFINEON

39 / 78 page

TC1920

Preliminary

Data Sheet

V 1.3, 2003-10

Features:

The following functionality has been implemented in the on chip ADC module to fulfill the

enhanced requirements of embedded control applications:

• 8-bit, 10-bit, 12-bit A/D Conversion

• Successive approximation conversion method

• Total Unadjusted Error (TUE) of

± 2 LSB @ 10-bit resolution

• Integrated sample and hold functionality

• 6 analog input channels

• Dedicated control and status registers for each analog channel

• Flexible conversion request mechanisms

• Selectable reference voltages for each channel

• Programmable sample and conversion timing schemes

• Limit checking

• Flexible ADC module service request control unit

• Automatic control of external analog multiplexer

• Equidistant samples initiated by timer

• External trigger inputs for conversion requests

• Power reduction and clock control feature

Real Time Clock Unit RTC

The Real Time Clock (RTC) module is basically an independent timer chain and counts

clock ticks. The base frequency of the RTC can be programmed via a reload counter.

The RTC can work fully asynchronous to the system frequency and is optimized on low

power consumption.

Features:

The RTC serves different purposes:

• Absolute system clock to determine the current time and date

• Cyclic time based interrupt

• Alarm interrupt for wake up on a defined time

• 48-bit timer for long term measurements

TC1920 Scheda tecnica(PDF) 39 Page - Infineon Technologies AG