MICROCHIP ATTINY20-XU

ATtiny20 is a low-power CMOS 8-bit microcontroller based on the compact AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATtiny20 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. The AVR core combines a rich instruction set with 16 general purpose working registers and system registers. All registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is compact and code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. ATtiny20 provides the following features: 2K bytes of in-system programmable Flash 128 bytes of SRAM Twelve general purpose I/O lines 16 general purpose working registers An 8-bit Timer/Counter with two PWM channels A 16-bit Timer/Counter with two PWM channels Internal and external interrupts An eight-channel, 10-bit ADC A programmable Watchdog Timer with internal oscillator A slave two-wire interface A master/slave serial peripheral interface An internal calibrated oscillator Four software selectable power saving modes The device includes the following modes for saving power: Idle mode: stops the CPU while allowing the timer/counter, ADC, analog comparator, SPI, TWI, and interrupt system to continue functioning ADC Noise Reduction mode: minimizes switching noise during ADC conversions by stopping the CPU and all I/O modules except the ADC Power-down mode: registers keep their contents and all chip functions are disabled until the next interrupt or hardware reset Standby mode: the oscillator is running while the rest of the device is sleeping, allowing very fast start-up combined with low power consumption. The device is manufactured using Atmel’s high density non-volatile memory technology. The on-chip, in-system programmable Flash allows program memory to be r

• High performance, low power 8-bit AVR microcontroller
• Advanced RISC architecture 112 powerful instructions – most single clock cycle execution
• 16 x 8 general purpose working registers
• Fully static operation
• Up to 12 MIPS throughput at 12MHz
• Non-volatile program and data memories
• 2K bytes of in-system programmable flash program memory
• 128 bytes internal SRAM
• Flash write/erase cycles: 10,000
• Data retention: 20 years at 85°C / 100 years at 25°C
• Peripheral features
• One 8-bit timer/counter with two PWM channels
• One 16-bit timer/counter with two PWM channels
• 10-bit analog to digital converter
• 8 single-ended channels
• Programmable watchdog timer with separate on-chip oscillator
• On-chip analog comparator
• Master/slave SPI serial interface
• Slave TWI serial interface
• Special microcontroller features
• In-system programmable
• External and internal interrupt sources
• Low power idle, ADC noise reduction, stand-by and power-down modes
• Enhanced power-on reset circuit
• Internal calibrated oscillator
• I/O and packages
• 14-pin SOIC/TSSOP: 12 programmable I/O lines
• 12-ball WLCSP: 10 programmable I/O lines
• 15-ball UFBGA: 12 programmable I/O lines
• 20-pad VQFN: 12 programmable I/O lines
• Operating voltage: 1.8 – 5.5V
• Programming voltage: 5V
• Speed grade 0 – 4MHz @ 1.8 – 5.5V
• 0 – 8MHz @ 2.7 – 5.5V
• 0 – 12MHz @ 4.5 – 5.5V
• Industrial temperature range
• Low power consumption
• Active mode: 200 μA at 1MHz and 1.8V
• Idle mode: 25 μA at 1MHz and 1.8V
• Power-down mode: <0.1 μA at 1.8V