AVR64EA48-I/PT

Overview

The AVR64EA48-I/PT is an 8-bit AVR microcontroller featuring a 20 MHz CPU, 64 KB Flash with read-while-write capability, 6 KB SRAM, and 512 B EEPROM. It includes a 12-bit ADC with PGA, 10-bit DAC, two analog comparators, three USARTs, SPI, TWI, four TCBs, two TCAs, and an RTC. The device operates from 1.8 V to 5.5 V, supports -40°C to +85°C, and uses a 48-pin TQFP package.

Feature Summary

• Features a flexible low-power architecture with Event System and accurate analog subsystems
• Includes hardware multiplier for efficient processing at up to 20 MHz clock speeds
• Supports simultaneous host and client operation on the TWI interface
• Provides true read-while-write operation for uninterrupted code execution during memory writes

Applications

• Real-time control systems
• Sensor nodes
• Secondary safety monitoring equipment

Procurement Notes

Verify the datasheet revision matches the required specifications before integration. Confirm that the 'I' suffix corresponds to the industrial temperature range of -40°C to +85°C. Ensure the 'T' suffix indicates tape and reel packaging suitable for automated assembly processes.

Selection Notes

Select this model when 64 KB of program memory and 6 KB of RAM are required within a 48-pin footprint. It is suitable for designs needing multiple serial interfaces and high-resolution analog conversion capabilities without exceeding the 20 MHz performance ceiling.

Part Context

This component belongs to the AVR EA family, which shares pin compatibility across 28, 32, and 48-pin variants. Vertical migration within the family allows code reuse while increasing memory resources. The AVR64EA48 represents the highest memory configuration in the 48-pin package lineup.

Replacement Considerations

AVR64EA32-I/PT offers identical pinout and features but with reduced memory capacity (32 KB Flash, 4 KB SRAM). AVR32EA48-I/PT provides similar peripheral sets with lower memory specifications.