ATTINY24A-SSU

Overview

The ATTINY24A-SSU is an 8-bit AVR microcontroller featuring 2KB of In-System Programmable Flash, 128 bytes of EEPROM, and 128 bytes of SRAM. It operates within a voltage range of 1.8V to 5.5V and supports clock frequencies up to 20MHz at the upper voltage limit. The device includes one 8-bit and one 16-bit Timer/Counter with PWM channels, a 10-bit ADC with eight single-ended channels, and a Universal Serial Interface. It utilizes a 14-pin SOIC package and functions across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for high throughput efficiency.
• Non-volatile memory segments with high endurance ratings for both Flash and EEPROM data retention.
• Integrated analog-to-digital converter with programmable gain stages for differential channel pairs.
• On-chip debug system supporting in-system programming via SPI interface.

Applications

• Battery-powered embedded systems requiring low power consumption modes.
• Industrial control applications utilizing the universal serial interface and timer/counters.
• Sensor interfacing using the integrated 10-bit ADC and analog comparator.

Procurement Notes

Verify the specific speed grade suffix corresponds to the required operating frequency at your target supply voltage. Confirm the package marking matches the intended revision level. Ensure the ordering code aligns with the requested industrial temperature range specifications. Cross-reference the datasheet revision date against your design timeline to confirm feature availability.

Selection Notes

Select this component when a compact 8-bit solution with sufficient I/O lines and analog capabilities is needed. The 14-pin SOIC package offers a balance between pin count and board space. Consider the static operation and sleep modes for power-sensitive designs. Evaluate the available development tools and compiler support for efficient software implementation.

Part Context

This device belongs to the ATtiny family of low-power CMOS 8-bit microcontrollers based on the AVR enhanced RISC architecture. It shares core features with the ATtiny44A and ATtiny84A, differing primarily in memory sizes. The family is designed for cost-effective applications requiring reliable performance in small form factors.

Replacement Considerations

ATtiny24A-SSUR

FAQ

How does the device handle reset conditions?

A low level on the RESET pin generates a reset if held longer than the minimum pulse length, even without a running clock, unless the reset function is disabled via fuse settings.

What power-saving modes are supported?

The microcontroller supports Idle, ADC Noise Reduction, Standby, and Power-down modes to optimize power consumption based on application requirements.