The ADuC845, ADuC847, and ADuC848 are single-cycle,12.58 MIPs, 8052 core upgrades to the ADuC834 andADuC836. They include additional analog inputs forapplications requiring more ADC channels.The ADuC845, ADuC847, and ADuC848 are complete smarttransducer front ends. The family integrates high resolutionΣ-Δ ADCs with flexible, up to 10-channel, input multiplexing, afast 8-bit MCU, and program and data Flash/EE memory on asingle chip.The ADuC845 includes two (primary and auxiliary) 24-bit Σ-ΔADCs with internal buffering and PGA on the primary ADC.The ADuC847 includes the same primary ADC as the ADuC845(auxiliary ADC removed). The ADuC848 is a 16-bit ADCversion of the ADuC847.The ADCs incorporate flexible input multiplexing, a temperaturesensor (ADuC845 only), and a PGA (primary ADC only)allowing direct measurement of low-level signals. The ADCsinclude on-chip digital filtering and programmable output datarates that are intended for measuring wide dynamic range andlow frequency signals, such as those in weigh scale, strain gage,pressure transducer, or temperature measurement applications.The devices operate 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 theMCU core clock operating frequency is generated. The microcontrollercore is an optimized single-cycle 8052 offering up to12.58 MIPs performance while maintaining 8051 instruction setcompatibility.The available nonvolatile Flash/EE program memory optionsare 62 kbytes, 32 kbytes, and 8 kbytes. 4 kbytes of nonvolatileFlash/EE data memory and 2304 bytes of data RAM are alsoprovided on-chip. The program memory can be configured asdata memory to give up to 60 kbytes of NV data memory indata logging applications.On-chip factory firmware supports in-circuit serial downloadand debug modes (via UART), as well as single-pin emulationmode via the EA pin. The ADuC845, ADuC847, and ADuC848are supported by the QuickStart™ development system featuringlow cost software and hardware development tools.Applications Multichannel sensor monitoring Industrial/environmental instrumentation Weigh scales, pressure sensors, temperature monitoring Portable instrumentation, battery-powered systems Data logging, precision system monitoring

Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU with Enhanced IRQ Handler Features:Analog I/O Multichannel, 12-bit, 1 MSPS ADC Up to 12 ADC channels Fully differential and single-ended modes 0 V to VREF analog input range 12-bit voltage output DACs 4 DAC outputs available On-chip voltage reference On-chip temperature sensor Voltage comparatorMicrocontroller ARM7TDMI core, 16-bit/32-bit RISC architecture JTAG port supports code download and debugClocking options Trimmed on-chip oscillator (±3%) External watch crystal External clock source up to 44 MHz 41.78 MHz PLL with programmable divider Memory 62 kB Flash/EE memory, 8 kB SRAM In-circuit download, JTAG-based debug Software-triggered in-circuit reprogrammability Vectored interrupt controller for FIQ and IRQ 8 priority levels for each interrupt type Interrupt on edge or level external pin inputsOn-chip peripherals 2× fully I2C-compatible channels SPI (20 Mbps in master mode, 10 Mbps in slave mode) With 4-byte FIFO on input and output stages Up to 20 GPIO pins - Digital only GPIOs are 5 V tolerant 3× general-purpose timers Watchdog timer (WDT) Programmable logic array (PLA) 16 PLA elements 16-bit, 5-channel PWM

Integrated Precision Battery Sensor for Automotive Features:HIGH PRECISION ADCS Dual channel, simultaneous sampling, 16-bit, Σ-Δ ADCs Programmable ADC throughput from 1 Hz to 8 kHz On-chip 5 ppm/°C voltage reference Current channel Fully differential, buffered input Programmable gain from 1 to 512 ADC input range: −200 mV to +300 mV Digital comparators, with current accumulator feature Voltage channel Buffered, on-chip attenuator for 12 V battery inputs Temperature channel External and on-chip temperature sensor optionsMICROCONTROLLER ARM7TDMI® core, 16-/32-bit RISC architecture 20.48 MHz PLL with programmable divider PLL input source On-chip precision oscillator On-chip low power oscillator External (32.768 kHz) watch crystal JTAG port supports code download and debugMEMORY 96-kB Flash/EE memory, 6-kB SRAM 10,000-cycle Flash/EE endurance, 20-year Flash/EE retention In-circuit download via JTAG and LINON-CHIP PERIPHERALS SAEJ2602/LIN 1.3/LIN 2.0-compatible (slave) support via UART with hardware synchronization Flexible wake-up I/O pin, master/slave SPI® serial I/O 9-pin GPIO port, 3× general-purpose timers Wake-up and watchdog timers Power supply monitor, on-chip power-on-resetPOWER Operates directly from 12 V battery supply Current consumption Normal mode 10 mA at 10 MHz Low power monitor modePACKAGE AND TEMPERATURE RANGE 48-lead, 7 mm × 7 mm LFCSP Fully specified for −40°C to +115°C operation

Configurable Impedance Network Analyzer & Potentiostat with Integrated Cortex M3 Core Features: Analog performance 160 kSPS, 16-bit, precision analog-to-digital converter (ADC) 4 dedicated voltage measurement channels 8 current measurement channels Impedance measurement engine High precision voltage reference Supply noise rejection filtering Ultralow leakage configurable switch matrix 12-bit digital-to-analog converter (DAC) Precision instrumentation amplifier control loop 6-channel CapTouch controller Temperature sensor Analog hardware accelerators Autonomous analog front-end (AFE) controller Independent sequencer for AFE functions Direct digital synthesizer (DDS)/arbitrary waveform generator Receive filters Complex impedance measurement (DFT) engine Processing 16 MHz ARM Cortex-M3 processor 384 kB of embedded flash memory 32 kB system SRAM 16 kB Flash configured EEPROM Integrated full-speed USB 2.0 controller and PHY Multilayer advanced microcontroller bus architecture (AMBA) bus matrix Central direct memory access (DMA) controller Real-time clock (RTC) General-purpose, wake-up, and watchdog timers Communication Input/output I2S and beeper interface LCD display controller (parallel and serial) LCD segment controller SPI, I2C, and UART peripheral interfaces Programmable GPIOs Power Coin cell battery compatible 2.5 V to 3.6 V active measurement range Power management unit (PMU) Power-on reset (POR) and power supply monitor (PSM) Packages and temperature range Operating temperature range: −40°C to +85°C Package: 120-lead, 8 mm × 8 mm CSP_BGA 

Configurable Impedance Network Analyzer & Potentiostat with Integrated Cortex M3 Core Features: Analog performance 160 kSPS, 16-bit, precision analog-to-digital converter (ADC) 4 dedicated voltage measurement channels 8 current measurement channels Impedance measurement engine High precision voltage reference Supply noise rejection filtering Ultralow leakage configurable switch matrix 12-bit digital-to-analog converter (DAC) Precision instrumentation amplifier control loop 6-channel CapTouch controller Temperature sensor Analog hardware accelerators Autonomous analog front-end (AFE) controller Independent sequencer for AFE functions Direct digital synthesizer (DDS)/arbitrary waveform generator Receive filters Complex impedance measurement (DFT) engine Processing 16 MHz ARM Cortex-M3 processor 384 kB of embedded flash memory 32 kB system SRAM 16 kB Flash configured EEPROM Integrated full-speed USB 2.0 controller and PHY Multilayer advanced microcontroller bus architecture (AMBA) bus matrix Central direct memory access (DMA) controller Real-time clock (RTC) General-purpose, wake-up, and watchdog timers Communication Input/output I2S and beeper interface LCD display controller (parallel and serial) LCD segment controller SPI, I2C, and UART peripheral interfaces Programmable GPIOs Power Coin cell battery compatible 2.5 V to 3.6 V active measurement range Power management unit (PMU) Power-on reset (POR) and power supply monitor (PSM) Packages and temperature range Operating temperature range: −40°C to +85°C Package: 120-lead, 8 mm × 8 mm CSP_BGA 

MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU Features: High resolution Σ-Δ ADCs 2 independent 24-bit ADCs Up to 10 ADC input channels on all devices 24-bit no missing codes 22-bit rms (19.5 bit p-p) effective resolution Offset drift 10 nV/°C, gain drift 0.5 ppm/°C chop enabled Memory 62-kbyte on-chip Flash/EE program memory 4-kbyte on-chip Flash/EE data memory Flash/EE, 100-year retention, 100 kcycle endurance 3 levels of Flash/EE program memory security In-circuit serial download (no external hardware) High speed user download (5 sec) 2304 bytes on-chip data RAM See data sheet for additional features

Ultra Low Power ARM Cortex-M4F MCU with Integrated Power Management Features: EEMBC ULPMark™-CP score (3 V): 189 Ultra low power active and hibernate modes Active mode dynamic current: 41 μA/MHz (typical) Flexi mode: 400 μA (typical) Hibernate mode: 0.65 μA (typical) Shutdown mode: 50 nA (typical) Shutdown mode (fast wake-up): 0.20 μA (typical) ARM Cortex-M4F processor at 52 MHz with FPU, MPU, ITM with SWD interface Power management Single-supply operation (connected to VBAT pins): 1.74 V to 3.6 V Optional buck converter for improved efficiency Memory options 512 kB of embedded flash memory with ECC 4 kB of cache memory to reduce active power 128 kB of configurable system SRAM with parity Safety Watchdog with dedicated on-chip oscillator Hardware CRC with programmable polynomial Multiparity bit protected SRAM ECC protected embedded flash Security Hardware cryptographic accelerator supporting AES-128, AES-256, and SHA-256 Protected key storage in flash, SHA-256-based keyed HMAC and key wrap and unwrap User code protection TRNG Digital peripherals 3 SPI interfaces to enable glueless interface to sensors, radios, and converters 1 I2C and 2 UART peripheral interfaces SPORT for natively interfacing with converters and radios Programmable GPIOs (44 in LFCSP and 51 in WLCSP) 3 general-purpose timers with PWM support RGB timer for driving RGB LED RTC0 for time keeping RTC1 with SensorStrobe and time stamping Programmable beeper 27-channel DMA controller Clocking features 26 MHz clock: on-chip oscillator, external crystal oscillator, SYS_CLKIN for external clock, and integrated PLL 32 kHz clock: on-chip oscillator and low power crystal oscillator Clock fail detection for external crystals Analog peripherals 12-bit SAR ADC, 1.8 MSPS, 8 channels, and digital comparator

Ultra Low Power ARM Cortex-M4F MCU with Integrated Power Management Features: EEMBC ULPMark™-CP score (3 V): 189 Ultra low power active and hibernate modes Active mode dynamic current: 41 μA/MHz (typical) Flexi mode: 400 μA (typical) Hibernate mode: 0.65 μA (typical) Shutdown mode: 50 nA (typical) Shutdown mode (fast wake-up): 0.20 μA (typical) ARM Cortex-M4F processor at 52 MHz with FPU, MPU, ITM with SWD interface Power management Single-supply operation (connected to VBAT pins): 1.74 V to 3.6 V Optional buck converter for improved efficiency Memory options 512 kB of embedded flash memory with ECC 4 kB of cache memory to reduce active power 128 kB of configurable system SRAM with parity Safety Watchdog with dedicated on-chip oscillator Hardware CRC with programmable polynomial Multiparity bit protected SRAM ECC protected embedded flash Security Hardware cryptographic accelerator supporting AES-128, AES-256, and SHA-256 Protected key storage in flash, SHA-256-based keyed HMAC and key wrap and unwrap User code protection TRNG Digital peripherals 3 SPI interfaces to enable glueless interface to sensors, radios, and converters 1 I2C and 2 UART peripheral interfaces SPORT for natively interfacing with converters and radios Programmable GPIOs (44 in LFCSP and 51 in WLCSP) 3 general-purpose timers with PWM support RGB timer for driving RGB LED RTC0 for time keeping RTC1 with SensorStrobe and time stamping Programmable beeper 27-channel DMA controller Clocking features 26 MHz clock: on-chip oscillator, external crystal oscillator, SYS_CLKIN for external clock, and integrated PLL 32 kHz clock: on-chip oscillator and low power crystal oscillator Clock fail detection for external crystals Analog peripherals 12-bit SAR ADC, 1.8 MSPS, 8 channels, and digital comparator

Ultra Low Power ARM Cortex-M4F MCU with Integrated Power Management Features: EEMBC ULPMark™-CP score (3 V): 189 Ultra low power active and hibernate modes Active mode dynamic current: 41 μA/MHz (typical) Flexi mode: 400 μA (typical) Hibernate mode: 0.65 μA (typical) Shutdown mode: 50 nA (typical) Shutdown mode (fast wake-up): 0.20 μA (typical) ARM Cortex-M4F processor at 52 MHz with FPU, MPU, ITM with SWD interface Power management Single-supply operation (connected to VBAT pins): 1.74 V to 3.6 V Optional buck converter for improved efficiency Memory options 512 kB of embedded flash memory with ECC 4 kB of cache memory to reduce active power 128 kB of configurable system SRAM with parity Safety Watchdog with dedicated on-chip oscillator Hardware CRC with programmable polynomial Multiparity bit protected SRAM ECC protected embedded flash Security Hardware cryptographic accelerator supporting AES-128, AES-256, and SHA-256 Protected key storage in flash, SHA-256-based keyed HMAC and key wrap and unwrap User code protection TRNG Digital peripherals 3 SPI interfaces to enable glueless interface to sensors, radios, and converters 1 I2C and 2 UART peripheral interfaces SPORT for natively interfacing with converters and radios Programmable GPIOs (44 in LFCSP and 51 in WLCSP) 3 general-purpose timers with PWM support RGB timer for driving RGB LED RTC0 for time keeping RTC1 with SensorStrobe and time stamping Programmable beeper 27-channel DMA controller Clocking features 26 MHz clock: on-chip oscillator, external crystal oscillator, SYS_CLKIN for external clock, and integrated PLL 32 kHz clock: on-chip oscillator and low power crystal oscillator Clock fail detection for external crystals Analog peripherals 12-bit SAR ADC, 1.8 MSPS, 8 channels, and digital comparator

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