8XC196KB datasheet(14/17 Pages) INTEL

14 / 17 page

AUTOMOTIVE 8XC196KB

A to D CHARACTERISTICS

There are two modes of AD operation with and

without clock prescaler The modes are shown in the

table below In mode 2 with the clock prescaler dis-

abled the maximum XTAL1 frequency is 80 MHz

Accuracy will degrade at higher frequencies in this

mode The frequency divider option is provided to

obtain higher accuracy outside of the currently spec-

ified operating conditions

The converter is ratiometric so the absolute accura-

cy is directly dependent on the accuracy and stability

of VREF VREF must be close to VCC since it supplies

both the resister ladder and the digital section of the

converter

AD Converter Specifications

The specifications given below assume adherence

to the operating conditions section of this data

sheet Testing is performed in mode 2 with VREF e

512V and 8 MHz operating clock frequency

WAVEFORMSERIAL PORTSHIFT REGISTER MODE

SERIAL PORT WAVEFORMSHIFT REGISTER MODE

270679 – 28

Clock Prescaler ON

Clock Prescaler OFF

IOC24 e 0

IOC24 e 1

Mode 1

158 States for Execution

Mode 2

91 States for Execution

2633 ms

12 MHz

2275 ms

8 MHz (Maximum)

NOTE

IOC23 e 0 The No Sample and Hold feature is not available on the 8XC196KB device

8XC196KB Datasheet(PDF) 14 Page - Intel Corporation