Atmel 8-bit AVR Microcontroller 128KB Flash USB 64-pin TQFP

The Atmel 8-bit AVR Microcontroller provides 128KB of in-system programmable flash memory and integrated USB 2.0 connectivity in a 64-pin TQFP package.

This AVR RISC-based microcontroller offers 128KB of in-system programmable (ISP) flash memory with read-while-write capability, 4KB of EEPROM and 8KB of RAM. It includes 48 general-purpose I/O lines and 32 general-purpose working registers, supporting flexible interfacing with a range of peripherals and sensors. Its architecture executes powerful instructions in a single clock cycle, with throughput approaching 1 MIPS per MHz.

Key Connectivity and Features

The integrated USB 2.0 full-speed/low-speed device and On-The-Go (OTG) module supports device, host or OTG applications, with an interrupt on transfer completion. Additional communication options include a USART, a byte-oriented 2-wire serial interface (I²C) and an SPI serial port. An 8-channel, 10-bit A/D converter provides analogue measurement, with an optional differential input stage featuring programmable gain. Debugging and programming are supported through a JTAG interface compliant with the IEEE 1149.1 standard.

System Management

The device includes power-on reset, programmable brown-out detection and an internal calibrated oscillator. Six software-selectable power-saving modes are available: Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby. It operates across a voltage range of 2.7V to 5.5V with a maximum frequency of 16MHz.

Specifications

• Flash Memory: 128KB ISP with read-while-write
• EEPROM: 4KB
• RAM: 8KB
• I/O Lines: 48 general-purpose
• Working Registers: 32 general-purpose
• Operating Voltage: 2.7V to 5.5V
• Maximum Frequency: 16MHz
• Package: 64-pin TQFP

Suitable for battery-powered and energy-sensitive applications that require USB connectivity.