ADuC843 Series

Precision Analog Microcontroller: 16MIPS 8052 Flash MCU + 8-Ch 12-Bit ADC

Catalog

Precision Analog Microcontroller: 16MIPS 8052 Flash MCU + 8-Ch 12-Bit ADC

Part	Core Processor	Core Size	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	RAM Size	Oscillator Type	Supplier Device Package	Connectivity	Operating Temperature [Max]	Operating Temperature [Min]	Number of I/O	Package / Case	Mounting Type	Program Memory Type	Speed	Peripherals	Data Converters [custom]	Data Converters [custom]
Analog Devices ADUC843BCP8-5	8052	8-Bit	4.75 V	5.25 V	2.25 K	Internal	56-LFCSP-VQ (8x8)	I2C SPI UART/USART	85 °C	-40 °C	32	56-VFQFN Exposed Pad CSP	Surface Mount	FLASH	16.78 MHz	DMA PSM PWM Temp Sensor WDT	12 b	8
Analog Devices ADUC843BCPZ8-5	8052	8-Bit	4.75 V	5.25 V	2.25 K	Internal	56-LFCSP-VQ (8x8)	I2C SPI UART/USART	85 °C	-40 °C	32	56-VFQFN Exposed Pad CSP	Surface Mount	FLASH	16.78 MHz	DMA PSM PWM Temp Sensor WDT	12 b	8

Catalog

Precision Analog Microcontroller: 16MIPS 8052 Flash MCU + 8-Ch 12-Bit ADC

Key Features

• Pin compatible upgrade of ADuC812/ADuC831/ADuC832Increased performanceSingle-cycle 20 MIPS 8052 coreHigh speed 420 kSPS 12-bit ADCIncreased memoryUp to 62 kBytes on-chip Flash/EE program memory4 kBytes on-chip Flash/EE data memoryIn-circuit reprogrammableFlash/EE, 100 year retention, 100 kCycle endurance2304 bytes on-chip data RAMSmaller package8 mm × 8 mm chip scale package52-lead PQFP—pin-compatible upgrade

• Increased performanceSingle-cycle 20 MIPS 8052 coreHigh speed 420 kSPS 12-bit ADC

• Single-cycle 20 MIPS 8052 core

• High speed 420 kSPS 12-bit ADC

• Increased memoryUp to 62 kBytes on-chip Flash/EE program memory4 kBytes on-chip Flash/EE data memory

• Up to 62 kBytes on-chip Flash/EE program memory

• 4 kBytes on-chip Flash/EE data memory

• In-circuit reprogrammableFlash/EE, 100 year retention, 100 kCycle endurance2304 bytes on-chip data RAM

• Flash/EE, 100 year retention, 100 kCycle endurance

• 2304 bytes on-chip data RAM

• Smaller package8 mm × 8 mm chip scale package52-lead PQFP—pin-compatible upgrade

• 8 mm × 8 mm chip scale package

• 52-lead PQFP—pin-compatible upgrade

• Analog I/O8-channel, 420 kSPS high accuracy, 12-bit ADCOn-chip, 15 ppm/°C voltage referenceDMA controller, high speed ADC-to-RAM captureDual output PWM Σ-Δ DACsOn-chip temperature monitor function

• 8-channel, 420 kSPS high accuracy, 12-bit ADC

• On-chip, 15 ppm/°C voltage reference

• DMA controller, high speed ADC-to-RAM capture

• Dual output PWM Σ-Δ DACs

• On-chip temperature monitor function

• 8052 based core8051 compatible instruction set (20 MHz max)

• 8051 compatible instruction set (20 MHz max)

• High performance single-cycle core32 kHz external crystal, on-chip programmable PLL12 interrupt sources, 2 priority levelsDual data pointers, extended 11-bit stack pointer

• 32 kHz external crystal, on-chip programmable PLL

• 12 interrupt sources, 2 priority levels

• Dual data pointers, extended 11-bit stack pointer

• On-chip peripheralsTime interval counter (TIC)UART, I2C®, and SPI®Serial I/OWatchdog timer (WDT)Power supply monitor (PSM)

• Time interval counter (TIC)

• UART, I2C®, and SPI®Serial I/O

• Watchdog timer (WDT)

• Power supply monitor (PSM)

• PowerNormal: 4.5 mA @ 3 V (core CLK = 2.098 MHz)Power-down: 10 μA @ 3 V

• Normal: 4.5 mA @ 3 V (core CLK = 2.098 MHz)

• Power-down: 10 μA @ 3 V

• Development toolsLow cost, comprehensive development system incorporating nonintrusive single-pin emulation,IDE based assembly and C source debugging

• Low cost, comprehensive development system incorporating nonintrusive single-pin emulation,

• IDE based assembly and C source debugging

Description

TheADuC841/ADuC842/ADuC843 are complete smart transducer front ends, that integrates a high performance self-calibrating multichannel ADC, a dual DAC, and an optimized single-cycle 20 MHz 8-bit MCU (8051 instruction set compatible) on a single chip.The ADuC841 and ADuC842 are identical with the exception of the clock oscillator circuit; the ADuC841 is clocked directly from an external crystal up to 20 MHz whereas the ADuC842 uses a 32 kHz crystal with an on-chip PLL generating a programmable core clock up to 16.78 MHz.The ADuC843 is identical to the ADuC842 except that the ADuC843 has no analog DAC outputs.The microcontroller is an optimized 8052 core offering up to 20 MIPS peak performance. Three different memory options are available offering up to 62 kBytes of nonvolatile Flash/EE program memory. Four kBytes of nonvolatile Flash/EE data memory, 256 bytes RAM, and 2 kBytes of extended RAM are also integrated on-chip.The parts also incorporate additional analog functionality with two 12-bit DACs, power supply monitor, and a band gap reference. On-chip digital peripherals include two 16-bit Σ-Δ. DACs, a dual output 16-bit PWM, a watchdog timer, a time interval counter, three timers/counters, and three serial I/O ports (SPI, I2C, and UART).On the ADuC812 and the ADuC832, the I2C and SPI interfaces share some of the same pins. For backwards compatibility, this is also the case for the ADuC841/ADuC842/ADuC843.However, there is also the option to allow SPI operate separately on P3.3, P3.4, and P3.5, while I2C uses the standard pins. The I2C interface has also been enhanced to offer repeated start, general call, and quad addressing.On-chip factory firmware supports in-circuit serial download and debug modes (via UART) as well as single-pin emulation mode via theEApin.ApplicationsOptical networking—laser power controlBase station systemsPrecision instrumentation, smart sensorsTransient capture systemsDAS and communications systems