ADI ADUC812BS

805216MHz8KB（8K x 8）

Overview

The ADuC812 is a fully integrated 12-bit data acquisition systemincorporating a high performance self-calibrating multichannelADC, dual DAC, and programmable 8-bit MCU (8051 instructionset compatible) on a single chip.

Normal, idle, and power-down operating modes for both theMCU core and analog converters allow flexible power managementschemes suited to low power applications. The part isspecified for 3 V and 5 V operation over the industrial temperaturerange and is available in a 52-lead, plastic quadflatpack package.

Features

Analog I/0

8-Channel, High Accuracy 12-Bit ADC

On-Chip, 100 ppm/°C Voltage Reference

High Speed 200 kSPS

DMA Controller for High-Speed ADC-to-RAM Capture

212-Bit Voltage Output DACs

On-Chip Temperature Sensor Function

Memory

8K Bytes On-Chip Flash/EE Program Memory

640 Bytes On-Chip Flash/EE Data Memory

256 Bytes On-Chip Data RAM

16M Bytes External Data Address Space

64K Bytes External Program Address Space

8051 Compatible Core

12 MHz Nominal Operation (16 MHz Max)

316-Bit Timer/Counters

High Current Drive Capability- Port3

9 Interrupt Sources, 2 Priority Levels

Power

Specified for 3 V and 5 V Operation

Normal, idle, and Power-Down Modes

On-Chip Peripherals

UART and SPIP Serial 1/0

2-Wire (400 kHz PC0 Compatible) Serial I/0

Watchdog Timer

Power Supply Monitor

Applications

Intelligent Sensors Calibration and Conditioning

Battery-Powered Systems (Portable PCs, Instruments,

Monitors)

Transient Capture Systems

DAS and Communications Systems

Control Loop Monitors (Optical Networks/Base Stations)