AVR64EA32T-I/PT

Overview

The AVR64EA32T-I/PT is an 8-bit microcontroller from the AVR EA family, featuring a 32-pin TQFP package. It includes 64 KB of in-system programmable Flash with read-while-write capability, 6 KB of SRAM, and 512 bytes of EEPROM. The device operates at clock speeds up to 20 MHz and supports a supply voltage range of 1.8 V to 5.5 V. Key peripherals include a 12-bit differential ADC with PGA, a 10-bit DAC, two analog comparators, three USARTs, one SPI, and one TWI interface.

Feature Summary

• Features a flexible low-power architecture with hardware multiplier running at up to 20 MHz
• Includes an event system for CPU-independent inter-peripheral signaling
• Provides accurate analog subsystems including a 12-bit differential ADC with programmable gain amplifier
• Supports single pin unified programming and debugging via UPDI

Applications

• Industrial control systems requiring robust I/O and analog capabilities
• Smart energy metering applications utilizing precise ADC measurements
• Low-power embedded devices operating across industrial temperature ranges
• Motor control interfaces leveraging timer/counters and PWM generation

Procurement Notes

Verify the specific ordering suffix 'T' indicates tape and reel packaging configuration. Confirm the 'I' suffix corresponds to the industrial temperature range of -40°C to +85°C. Ensure the datasheet version matches the preliminary release status if applicable. Cross-reference the manufacturer part number directly with official Microchip documentation to validate component authenticity and revision history before procurement.

Selection Notes

Select this component when vertical migration within the AVR EA family is required without code modification. Choose this model for designs needing 64 KB of Flash memory and 6 KB of SRAM in a 32-pin footprint. Consider this MCU for applications demanding simultaneous host and client operation on the TWI interface or those requiring high-precision analog signal processing with the integrated PGA.

Part Context

This device belongs to the AVR EA family, which offers full pin and feature compatibility for vertical migration. The AVR64EA32 variant specifically provides 64 KB of Flash memory, distinguishing it from lower-capacity models like the AVR32EA32 or AVR16EA32. It shares the same 32-pin physical layout as other family members but expands internal memory resources.

Replacement Considerations

AVR64EA32-E/PT

FAQ

Does the AVR64EA32 support simultaneous host and client operations?

Yes, the TWI/I2C interface can operate simultaneously as a host and client on different pins.

What is the maximum clock frequency for this microcontroller?

The AVR CPU runs at clock speeds up to 20 MHz.