深圳市中立信电子科技有限公司

ADUC814ARUZ

8位微控制器 -MCU Microcnvtr w/ Built In 12B ADC Dual DAC

MicroConverter®, Small Package  12-Bit ADC with Embedded Flash MCU

GENERAL DESCRIPTION ADUC814ARUZ

The ADuC814 is a fully integrated 247 kSPS, 12-bit data acquisition system incorporating a high performance multichannel ADC, an 8-bit MCU, and program/data Flash/EE memory on a single chip.

This low power device operates from a 32 kHz crystal with an on-chip PLL generating a high frequency clock of 16.78 MHz. This clock is, in turn, routed through a programmable clock divider from which the MCU core clock operating frequency is generated.

FEATURES ADUC814ARUZ

ANALOG I/O

6-channel 247 kSPS ADC

12-bit resolution

ADC high speed data capture mode

Programmable reference via on-chip DAC for low

 level inputs, ADC performance specified to VREF = 1 V

Dual voltage output DACs

12-bit resolution, 15 μs settling time

Memory

8 kbytes on-chip Flash/EE program memory

640 bytes on-chip Flash/EE data memory

Flash/EE, 100 year retention, 100 kcycle endurance

3 levels of Flash/EE program memory security

In-circuit serial downlaod (no external hardware)

256 bytes on-chip data RAM

8051 based core

8051 compatible instruction set

32 kHz external crystal,

 on-chip programmable PLL (16.78 MHz max)

Three 16-bit timer/counters

11 programmable I/O lines

11 interrupt sources, 2 priority levels

APPLICATIONS ADUC814ARUZ

Optical networking—laser power control

Base station systems—power amplifier bias control

Precision instruments, smart sensors

Battery-powered systems, precision system monitors