ATMEGA48-20AU

The ATMEGA48-20AU is a low-power 8-bit microcontroller based on the AVR enhanced RISC architecture, part of Microchip Technology's ATmega48 family. It features 131 powerful instructions, most executing in a single clock cycle, achieving up to 20 MIPS throughput at 20MHz. The device includes 4KB of in-system self-programmable Flash program memory, 512B of internal SRAM, and 256B of EEPROM, with high endurance: 10,000 write/erase cycles for Flash and 100,000 for EEPROM, and data retention of 20 years at 85°C.

Peripherals include two 8-bit timer/counters, one 16-bit timer/counter with capture mode, six PWM channels, an 8-channel 10-bit ADC, and serial interfaces: I2C, SPI, and USART. Additional features include brown-out detect, power-on reset, programmable watchdog timer, and internal oscillator. The microcontroller operates from 2.7V to 5.5V and over a temperature range of -40°C to 85°C.

The device is supplied in a 32-lead TQFP package (7x7mm) with surface mount mounting. With 23 general-purpose I/O lines, it is suitable for a wide range of embedded control applications, including industrial automation, consumer electronics, and sensor interfaces.