ADUC812 Series

MicroConverter®, Multichannel 12-Bit ADC with Embedded Flash MCU

Catalog

MicroConverter®, Multichannel 12-Bit ADC with Embedded Flash MCU

Part	Oscillator Type	Peripherals	EEPROM Size [y]	EEPROM Size [x]	Number of I/O	Data Converters [custom]	Data Converters [custom]	Speed	Connectivity	Core Size	Package / Case	Program Memory Type	Core Processor	RAM Size	Supplier Device Package	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]
Analog Devices ADUC812BSZ-REEL	Internal	PSM Temp Sensor WDT	8	640	34	2 8	12b 12b	16 MHz	I2C SPI UART/USART	8-Bit	52-QFP	FLASH	8052	256 x 8	52-MQFP (10x10)	Surface Mount	85 °C	-40 °C	2.7 V	5.5 V

Catalog

MicroConverter®, Multichannel 12-Bit ADC with Embedded Flash MCU

Key Features

• Analog I/O8-Channel, High Accuracy 12-Bit ADCOn-Chip, 100 ppm/°C Voltage ReferenceHigh Speed 200 kSPSDMA Controller for High Speed ADC-to-RAM Capture2 12-Bit Voltage Output DACsOn-Chip Temperature Sensor Function

• 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

• 2 12-Bit Voltage Output DACs

• On-Chip Temperature Sensor Function

• Memory8K Bytes On-Chip Flash/EE Program Memory640 Bytes On-Chip Flash/EE Data Memory256 Bytes On-Chip Data RAM16M Bytes External Data Address Space64K Bytes External Program Address Space

• 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 Core12 MHz Nominal Operation (16 MHz Max)3 16-Bit Timer/CountersHigh Current Drive Capability—Port 39 Interrupt Sources, 2 Priority Levels

• 12 MHz Nominal Operation (16 MHz Max)

• 3 16-Bit Timer/Counters

• High Current Drive Capability—Port 3

• 9 Interrupt Sources, 2 Priority Levels

• PowerSpecified for 3 V and 5 V OperationNormal, Idle, and Power-Down Modes

• Specified for 3 V and 5 V Operation

• Normal, Idle, and Power-Down Modes

• On-Chip PeripheralsUART and SPI®Serial I/O2-Wire (400 kHz I2C®Compatible) Serial I/OWatchdog Timer

• UART and SPI®Serial I/O

• 2-Wire (400 kHz I2C®Compatible) Serial I/O

• Watchdog Timer

• Power Supply Monitor

Description

The ADuC812 is a fully integrated 12-bit data acquisition system incorporating a high performance self-calibrating multichannel ADC, dual DAC, and programmable 8-bit MCU (8051 instruction set compatible) on a single chip.The programmable 8051 compatible core is supported by 8K bytes Flash/EE program memory, 640 bytes Flash/EE data memory, and 256 bytes data SRAM on-chip.Additional MCU support functions include Watchdog Timer, Power Supply Monitor, and ADC DMA functions. Thirty-two programmable I/O lines, I2C compatible SPI and Standard UART Serial Port I/O are provided for multiprocessor interfaces and I/O expansion.Normal, idle, and power-down operating modes for both the MCU core and analog converters allow flexible power management schemes suited to low power applications. The part is specified for 3 V and 5 V operation over the industrial temperature range and is available in a 52-lead, plastic quad flatpack package.ApplicationsIntelligent Sensors Calibration and ConditioningBattery-Powered Systems (Portable PCs, Instruments, Monitors)Transient Capture SystemsDAS and Communications SystemsControl Loop Monitors (Optical Networks/Base Stations)