ATTINY861A-SU

The ATTINY861A-SU is a high-performance, low-power 8-bit AVR microcontroller from Microchip Technology. It features 8KB of in-system self-programmable Flash memory, 512B of SRAM, and 512B of EEPROM with high endurance (10,000 write/erase cycles for Flash, 100,000 for EEPROM). The device operates at a maximum speed of 20 MHz, delivering up to 20 MIPS throughput.

The microcontroller includes a 10-bit ADC with 11 single-ended channels and 16 differential channels, plus 15 differential channels with programmable gain. Peripheral features include a 16-bit timer/counter, a high-speed timer/counter with PWM outputs, an on-chip analog comparator, a watchdog timer, and a universal serial interface (USI). It also has a brown-out detection, power-on reset, and an internal calibrated oscillator.

The ATTINY861A-SU is housed in a 20-pin SOIC (0.295", 7.50mm Width) surface-mount package. It supports a supply voltage range of 1.8V to 5.5V and operates over a temperature range of -40°C to 85°C. With low power consumption (200 µA active at 1 MHz, 1.8V, 25°C; 0.1 µA in power-down mode), it is suitable for battery-powered and portable applications.

Typical applications include embedded control, sensor interfacing, and low-power systems. The device supports debugWIRE for on-chip debugging and offers four sleep modes for power management.