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. 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) * Analog I/O * 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 * 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) * 3 16-Bit Timer/Counters * High Current Drive Capability—Port 3 * 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 SPI® Serial I/O * 2-Wire (400 kHz I2C® Compatible) Serial I/O * Watchdog Timer * Power Supply Monitor https://elecena.pl/product/185181/microconverter-multichannel-12-bit-adc-with-embedded-flash-mcu 2007-02-21 https://elecena.pl/product/185181/microconverter-multichannel-12-bit-adc-with-embedded-flash-mcu 2018-03-28 https://elecena.pl/product/185181/microconverter-multichannel-12-bit-adc-with-embedded-flash-mcu 2025-01-22