ATTINY461-20MU

The ATTINY461-20MU is an 8-bit AVR microcontroller from Microchip Technology's ATtiny family. It features an advanced RISC architecture with 123 instructions, most executed in a single clock cycle. The device integrates 4KB of in-system programmable Flash memory, 256 bytes of SRAM, and 256 bytes of EEPROM, with endurance ratings of 10,000 write/erase cycles for Flash and 100,000 for EEPROM. Data retention is guaranteed at 20 years at 85°C.

Peripheral features include a 10-bit ADC with 11 single-ended channels and differential channel pairs with programmable gain, an 8/16-bit timer/counter, an 8/10-bit high-speed timer/counter with three PWM outputs, and a universal serial interface (USI) with start condition detector. On-chip debugging is supported via debugWIRE. The microcontroller operates from 2.7V to 5.5V and is speed-graded at 20MHz maximum under 4.5V-5.5V supply, with reduced speed at lower voltages.

The device is housed in a 32-VFQFN exposed pad package (supplier package 32-VQFN 5x5 mm) suitable for surface mount assembly. It is specified for the industrial temperature range of -40°C to 85°C. Power consumption is 300 µA typical in active mode at 1 MHz and 1.8V, and 0.1 µA in power-down mode, making it suitable for low-power applications.