The ADuC841/ADuC842/ADuC843are 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 aprogrammable 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 arealso 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 the EA pin.Applications Optical networking—laser power control Base station systems Precision instrumentation, smart sensors Transient capture systems DAS and communications systems

The ADuC834 is a complete smart transducer front end,integrating two high resolution - ADCs, an 8-bit MCU, andprogram/data Flash/EE memory on a single chip.The two independent ADCs (primary and auxiliary) include atemperature sensor and a PGA (allowing direct measurement oflow level signals). The ADCs with on-chip digital filtering andprogrammable output data rates are intended for the measurementof wide dynamic range, low frequency signals, such as those inweigh scale, strain-gage, pressure transducer, or temperaturemeasurement applications.The device operates from a 32 kHz crystal with an on-chip PLLgenerating a high frequency clock of 12.58 MHz. This clock isrouted through a programmable clock divider from which the MCUcore clock operating frequency is generated. The microcontrollercore is an 8052 and therefore 8051 instruction set compatiblewith 12 core clock periods per machine cycle.62 Kbytes of nonvolatile Flash/EE program memory, 4 Kbytes ofnonvolatile Flash/EE data memory, and 2304 bytes of data RAMare provided on-chip. The program memory can be configuredas data memory to give up to 60 Kbytes of NV data memory indata logging applications.On-chip factory firmware supports in-circuit serial download anddebug modes (via UART), as well as single-pin emulation modevia the EA pin. The ADuC834 is supported by a QuickStart™development system featuring low cost software and hardwaredevelopment tools.Applications Intelligent sensors Weigh scales Portable instrumentation, battery-powered systems 4–20 mA transmitters Data logging Precision system monitoring

The ADuC836 is a complete smart transducer front end, integratingtwo high resolution Σ-Δ ADCs, an 8-bit MCU, and program/dataFlash/EE memory on a single chip.The two independent ADCs (primary and auxiliary) include atemperature sensor and a PGA (allowing direct measurementof low level signals). The ADCs with on-chip digital filtering andprogrammable output data rates are intended for the measurementof wide dynamic range, low frequency signals, such as thosein weigh scale, strain gage, pressure transducer, or temperaturemeasurement applications.The device operates from a 32 kHz crystal with an on-chip PLLgenerating a high frequency clock of 12.58 MHz. This clock isrouted through a programmable clock divider from which the MCUcore clock operating frequency is generated. The microcontrollercore is an 8052 and therefore 8051 instruction set compatiblewith 12 core clock periods per machine cycle.62 Kbytes of nonvolatile Flash/EE program memory, 4 Kbytes ofnonvolatile Flash/EE data memory, and 2304 bytes of data RAMare provided on-chip. The program memory can be configured asdata memory to give up to 60 Kbytes of NV data memory in datalogging applications.On-chip factory firmware supports in-circuit serial download anddebug modes (via UART), as well as single-pin emulation modevia the EA pin. The ADuC836 is supported by a QuickStart™development system featuring low cost software and hardware development tools.Applications Intelligent sensors Weigh scales Portable instrumentation, battery-powered systems 4–20 mA transmitters Data logging Precision system monitoring

MICROCONTROLLERS (MCU) - 8 BIT ROHS COMPLIANT: YES

Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU Features: Analog I/O Multichannel, 12-bit, 1 MSPS ADC Up to 16 ADC channels Fully differential and single-ended modes 0 V to VREF analog input range12-bit voltage output DACs Up to 4 DAC outputs available On-chip voltage reference On-chip temperature sensor (±3°C) Voltage comparator Microcontroller ARM7TDMI core, 16-bit/32-bit RISC architecture JTAG port supports code download and debug Clocking options Trimmed on-chip oscillator (±3%) External watch crystal External clock source up to 44 MHz 41.78 MHz PLL with programmable divider See datasheet for additional features

Precision Analog Microcontroller, Tunable Optical Control Microcontroller Features: Analog input/output 22-channel, 14-bit, 800 kSPS analog-to-digital converter (ADC) 10 external channels 1 on-chip die temperature monitor 6 current output digital-to-analog converter (IDAC) monitor channels 3 power monitor channels 2 buffered reference output channels Fully differential and single-ended modes 0 V to 2.5 V analog input range 6 low noise, 12-/14-bit IDAC outputs 1× 250 mA, 1× 200 mA, 2× 100 mA, and 2× 20 mA Semiconductor optical amplifier (SOA) IDAC pull-down to −3.0 V for fast current sink Eight 12-bit voltage output DACs (VDACs) Channel 0 and Channel 1: 0 V to 3 V, 75 Ω load Channel 2 and Channel 3: −5 V to 0 V, 500 Ω load Channel 4 and Channel 5: 0 V to 3 V, 300 Ω load Channel 6: 0 V to 5 V, 500 Ω load Channel 7: 0 V to 5 V, 100 Ω load 2.5 V, on-chip voltage reference 2 buffered 2.5 V outputs Microcontroller ARM Cortex-M3 processor, 32-bit RISC architecture Serial wire port supports code download and debugging Clocking options Trimmed on-chip oscillator (±3%) 80 MHz phase-locked loop (PLL) External 16 MHz crystal option External clock source Memory 2× 128 kB Flash/EE memories, 32 kB SRAM In-circuit download, SW-DP-based debugging Software triggered in-circuit reprogrammability On-chip peripherals UART, 2× I2C and 2× SPI serial input/output 28-pin general-purpose input/output (GPIO) port 3 general-purpose timers Wake-up (W/U) timer Watchdog timer (WDT) 32-element programmable logic array (PLA) Vectored interrupt controller Interrupt on edge or level external pin inputs 9× external interrupts Power Multiple supplies 5 V for VDAC6 and VDAC7 3.3 V for digital and analog inputs/outputs 1.8 V to 2.7 V for IDACs −5 V supply for IDAC3 and VDAC2/VDAC3 Package and temperature range 6 mm × 6 mm, 112-ball CSP_BGA package Fully specified for −40°C to +85°C ambient operation Tools QuickStart™ development system Full third party support

Precision Analog Microcontrollers, Analog I/O with MDIO Interface, ARM Cortex-M3 Features: Analog input/output Multichannel, 12-bit, 1 MSPS analog-to-digital converter (ADC) Up to 16 ADC input channels 0 V to VREF analog input range Single-ended modes AVDD and IOVDD monitors 12-bit voltage output digital-to-analog converters (VDACs) 8 VDACs with a range of 0 V to 2.5 V or AVDD outputs Voltage comparator Microcontroller ARM Cortex-M3 processor, 32-bit RISC architecture Serial wire port supports code download and debug Clocking options 80 MHz phase-locked loop (PLL) with programmable divider Trimmed on-chip oscillator (±3%) External 16 MHz crystal option External clock source up to 80 MHz Memory 2 × 128 kB independent Flash/EE memories 10,000 cycle Flash/EE endurance 20-year Flash/EE retention 32 kB SRAM Software triggered in-circuit reprogrammability via management data input/output (MDIO) On-chip peripherals MDIO slave up to 4 MHz 2 × I2C, 2 × SPI, UART Multiple general-purpose input/output (GPIO) balls: 3.6 V compliant 7 × 1.2 V compatible when used for MDIO 32-element programmable logic array (PLA) 3 general-purpose timers Wake-up timer Watchdog timer 16-bit pulse width modulator (PWM) Power Supply range: 2.9 V to 3.6 V Flexible operating modes for low power applications Packages and temperature range 6 mm × 6 mm, 96-ball CSP_BGA package Fully specified for −40°C to +105°C ambient operation Tools QuickStart development system Full third-party support

Precision Analog Microcontroller, 16-Bit Analog Input/Output with MDIO Interface, Arm Cortex-M33 Features: Analog input/output Multichannel, 16-bit, 2 MSPS ADC Up to 16 external channels On-chip die temperature monitor 4 power monitor channels 4 PGA/TIA channels supporting voltage and current measurements Fully differential and single-ended modes 0 V to VREF analog input range 12-bit voltage output DACs 8× 0 V to 2.5 V, 1 kΩ load 4× 0 V to 2.5 V, 2.5 kΩ load On-chip low drift voltage reference, 1.25 V or 2.5 V Buffered 1.25 V or 2.5 V output 4 voltage comparators Microcontroller 32-bit Arm Cortex-M33 core, 32-bit RISC architecture, FPU Serial wire port supports code download and debug Clocking options 16 MHz on-chip oscillator 160 MHz PLL output with programmable divider External clock source Memory 2× 512 kB independent Flash/EE memories 10,000-cycle Flash/EE endurance 20-year Flash/EE retention 128 kB SRAM with ECC Software triggered, in circuit reprogrammability via MDIO or I2C On-chip peripherals 2× UART, 3× SPI, 3× I2C serial input/output Multilevel voltage (3.3 V, 1.8 V, 1.2 V) GPIOs MDIO slave up to 10 MHz 5 general-purpose timers Wake-up timer (WUTs) Watchdog timers (WDTs) 32-element PLA 16-bit PWM 10 external Interrupts Power Multiple supplies: 3.3 V for voltage DACs and ADCs, and 3.3 V, 1.8 V, or 1.2 V for digital inputs/outputs Flexible operating modes for low power applications Packages and temperature range 5 mm × 5 mm 81-ball CSP_BGA and 3.46 mm × 3.46 mm 64-ball WLCSP BGA package uses ULA molding compounds Fully specified for −40°C to +105°C operation Tools Low cost quick start development system Full third-party support  

DEBUGGERS, EMULATORS & JTAG TOOLS;

Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU Features: Analog I/O Multichannel, 12-bit, 1 MSPS ADC Up to 16 ADC channels Fully differential and single-ended modes 0 V to VREF analog input range 12-bit voltage output DACs Up to 4 DAC outputs available On-chip voltage reference On-chip temperature sensor (±3°C) Voltage comparator Microcontroller ARM7TDMI core, 16-bit/32-bit RISC architecture JTAG port supports code download and debug Clocking options Trimmed on-chip oscillator (±3%) External watch crystal External clock source up to 44 MHz 41.78 MHz PLL with programmable divider See datasheet for additional features