ATTINY1624-SSUR

Overview

The ATtiny1624-SSUR is an 8-bit AVR microcontroller from the tinyAVR® 2 family, featuring a 16 KB Flash program memory, 2 KB SRAM, and 256B EEPROM. It operates at a maximum frequency of 20 MHz with a supply voltage range of 1.8V to 5.5V. The device includes a 12-bit differential ADC with PGA, two USARTs, SPI, TWI, four CCL LUTs, one TCA, two TCBs, and an RTC. It is housed in a 14-pin SOIC package (SS suffix) with a -40°C to +85°C operating temperature range.

Feature Summary

• Features a high-performance low-power AVR CPU with hardware multiplier and single-cycle I/O access.
• Includes advanced analog peripherals such as a 12-bit differential ADC with Programmable Gain Amplifier (PGA).
• Supports CPU-independent inter-peripheral signaling via the Event System and Configurable Custom Logic (CCL).
• Provides flexible clock options including internal oscillators and external crystal support for precise timing.

Applications

• Sensor nodes requiring efficient real-time control and low power consumption.
• Industrial applications needing robust communication interfaces like USART and SPI.
• Consumer electronics utilizing the compact 14-pin SOIC form factor.
• Automotive systems where AEC-Q100 qualified variants are required.

Procurement Notes

Verify the specific ordering suffix 'SS' corresponds to the 14-pin SOIC package and 'R' indicates tape and reel packaging. Confirm that the standard temperature grade (-40°C to +85°C) meets your environmental requirements. Ensure compatibility with the UPDI programming interface for development and debugging. Check for any automotive-specific VAO variants if your application demands AEC-Q100 qualification.

Selection Notes

Select this component when a balance of processing power and peripheral richness is needed in a small footprint. The 16 KB Flash and 2 KB SRAM support complex firmware logic. Consider the 12-bit ADC with PGA for precision analog signal acquisition. Evaluate the 14-pin constraint against the required number of GPIOs and communication interfaces before finalizing the design.

Part Context

This part belongs to the tinyAVR® 2 family, which offers vertical migration compatibility within the series. It shares architectural similarities with the ATtiny1626 and ATtiny1627 but differs in pin count and available I/O resources. The family emphasizes low power operation and advanced digital peripherals suitable for space-constrained embedded designs.

Replacement Considerations

The ATtiny1624 is fully pin and feature compatible with other devices in the tinyAVR® 2 family, allowing for vertical migration without code modification. Variants with different flash sizes or pin counts may require schematic changes. Verify package availability and temperature grades when substituting with similar Microchip MCU offerings.

FAQ

What is the maximum operating frequency of the ATtiny1624?

The ATtiny1624 can operate at a maximum frequency of 20 MHz.

Does the ATtiny1624 include a hardware multiplier?

Yes, the AVR CPU core in the ATtiny1624 features a two-cycle hardware multiplier.

How many general purpose I/O pins are available on the 14-pin version?

The 14-pin ATtiny1624 provides up to 12 programmable general purpose I/O pins.