AVR64DD14T-I/SL

Overview

The AVR64DD14T-I/SL is an 8-bit microcontroller from the AVR DD family, featuring a hardware multiplier CPU running at up to 24 MHz. It includes 64 KB of Flash memory, 8 KB of SRAM, and 256 bytes of EEPROM. The device provides 10 general-purpose I/O pins in a SOIC-14 package. Key peripherals include a 12-bit ADC with seven channels, a 10-bit DAC, two USARTs, SPI, TWI/I2C, and a Zero-Cross Detector. Operating voltage ranges from 1.8 V to 5.5 V, with an industrial temperature range of -40°C to +85°C.

Feature Summary

• Multi-Voltage I/O (MVIO) support enables bidirectional communication across different power domains without external level shifters.
• Integrated intelligent analog features including a 12-bit differential ADC and a 10-bit DAC for precise signal processing.
• Configurable Custom Logic (CCL) allows for custom digital logic implementation independent of the CPU core.
• Event System facilitates predictable inter-peripheral signaling to reduce system latency and CPU overhead.

Applications

• Industrial control systems requiring real-time processing
• Smart home appliances with multi-voltage domain requirements
• IoT devices utilizing low-power sleep modes
• Automotive applications compatible with ISO 26262 guidelines

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging and 'I' denotes the industrial temperature grade (-40°C to +85°C). Confirm that the 'SL' suffix corresponds to the SOIC-14 package style as documented in the manufacturer's ordering information. Ensure compatibility with UPDI programming interfaces for development and debugging.

Selection Notes

Select this component when 64 KB of program memory and 8 KB of RAM are required within a compact 14-pin footprint. The MVIO feature is critical for designs interfacing with mixed-voltage peripherals. Consider the 12-bit ADC resolution and event system capabilities if high-speed analog acquisition or deterministic peripheral-to-peripheral communication is necessary.

Part Context

This device belongs to the AVR DD family, which emphasizes vertical migration compatibility across pin counts and memory sizes. It shares architectural similarities with the AVR32DD14 and AVR16DD14, allowing code reuse while scaling resources. The family utilizes the latest Microchip technologies for low-power performance and advanced digital peripherals.

Replacement Considerations

AVR32DD14T-I/SL

FAQ

Does the AVR64DD14 support bidirectional level shifting between different voltage domains?

Yes, the Multi-Voltage I/O (MVIO) feature on PORT C supports true level-shifted bidirectional communication with devices operating at different supply voltages.

What is the maximum clock frequency of the AVR64DD14?

The AVR CPU runs at a maximum frequency of 24 MHz.