ADUC812BSZ Description

The ADuC812 is a fully integrated 12-bit data acquisition system that combines an 8-bit programmable MCU (compatible with the 8051 instruction set), a dual DAC, and a high performance self-calibrating multichannel ADC on a single chip.

The on-chip 8K bytes Flash/EE program memory, 640 bytes Flash/EE data memory, and 256 bytes data SRAM support the programmable 8051 compatible core.

The Watchdog Timer, Power Supply Monitor, and ADC DMA operations are additional MCU support features. For multiprocessor interfaces and I/O expansion, 32 programmable I/O lines, I2 C compliant SPI, and Standard UART Serial Port I/O are offered.

ADUC812BSZ Features

• 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

• 12 MHz Nominal Operation (16 MHz Max)

• 3 16-Bit Timer/Counters

• High Current Drive Capability—Port 3

• 9 Interrupt Sources, 2 Priority Levels

ADUC812BSZ 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)