Overview
●ATtiny40 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 ATtiny40 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
●Features
●• High Performance, Low Power AVR® 8-Bit Microcontroller
●• Advanced RISC Architecture
● – 54 Powerful Instructions – Most Single Clock Cycle Execution
● – 16 x 8 General Purpose Working Registers
● – Fully Static Operation
● – Up to 12 MIPS Throughput at 12 MHz
●• Non-volatile Program and Data Memories
● – 4K Bytes of In-System Programmable Flash Program Memory
● – 256 Bytes Internal SRAM
● – Flash Write/Erase Cycles: 10,000
● – Data Retention: 20 Years at 85oC / 100 Years at 25oC
●• Peripheral Features
● – One 8-bit Timer/Counter with Two PWM Channels
● – One 8/16-bit Timer/Counter
● – 10-bit Analog to Digital Converter
●• 12 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
● – 20-pin SOIC/TSSOP: 18 Programmable I/O Lines
● – 20-pad VQFN/MLF: 18 Programmable I/O Lines
●• Operating Voltage:
● – 1.8 – 5.5V
●• Programming Voltage:
● – 5V
●• Speed Grade
● – 0 – 4 MHz @ 1.8 – 5.5V
● – 0 – 8 MHz @ 2.7 – 5.5V
● – 0 – 12 MHz @ 4.5 – 5.5V
●• Industrial Temperature Range
●• Low Power Consumption
● – Active Mode:
●• 200 µA at 1 MHz and 1.8V
● – Idle Mode:
●• 25 µA at 1 MHz and 1.8V
● – Power-down Mode:
●• < 0.1 µA at 1.8V
