ATTINY24A-SSN

Overview

The ATTINY24A-SSNR is an 8-bit AVR microcontroller featuring a 14-pin SOIC package. It includes 2KB of in-system programmable Flash, 128 bytes of EEPROM, and 128 bytes of SRAM. The device supports a maximum clock frequency of 20 MHz at 4.5V to 5.5V supply voltage. It provides twelve programmable I/O lines, two PWM channels, and a 10-bit ADC with eight single-ended channels. Operating voltage ranges from 1.8V to 5.5V, with an industrial temperature range of -40°C to +105°C.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for high throughput efficiency.
• Non-volatile memory segments including self-programmable Flash and EEPROM with specified endurance ratings.
• Integrated peripheral set comprising timers, counters, analog-to-digital converter, and universal serial interface.
• Multiple low-power operating modes including Idle, ADC Noise Reduction, Standby, and Power-down.

Applications

• In-system programming via SPI port
• On-chip debug system using debugWIRE
• Pin change interrupt handling on available pins

Procurement Notes

Verify the specific speed grade suffix corresponds to the required operational frequency at the target supply voltage. Confirm the 'N' suffix indicates the matte tin lead finish and the 'R' suffix denotes tape and reel packaging. Ensure the industrial temperature rating aligns with the application environment requirements before procurement.

Selection Notes

Select this component when a compact 14-pin form factor is required alongside 2KB of program memory. Consider the ATtiny24A family for applications needing precise timing control via hardware timers or simple sensor interfacing through the integrated ADC. Evaluate power consumption specifications against battery life requirements if utilizing lower voltage operation.

Part Context

This part belongs to the ATtiny24A/44A/84A family of low-power CMOS 8-bit microcontrollers based on the AVR enhanced RISC architecture. The family shares core functionality but differs in memory sizes and pin counts. The ATtiny24A specifically offers the smallest memory configuration within this series while maintaining full feature parity regarding peripherals and instruction sets.

Replacement Considerations

ATtiny24A-SSU

FAQ

What is the function of the PB3 pin?

PB3 serves as the RESET input by default. It can be configured as a general-purpose I/O pin if the RSTDISBL fuse is programmed.

How does the device handle data retention?

The non-volatile memory segments are qualified for data retention of 20 years at 85°C or 100 years at 25°C.