ATTINY24-20SSU

Overview

The Atmel ATTINY24-20SSU is an 8-bit AVR microcontroller featuring a 20-pin SSOP package. It operates at a maximum frequency of 20 MHz with a supply voltage range of 2.7V to 5.5V. The device includes 2 kB of in-system programmable Flash memory, 128 bytes of EEPROM, and 128 bytes of SRAM. Key peripherals include one SPI interface, one TWI (I2C-compatible) interface, two PWM channels, and one 8-channel 10-bit ADC.

Feature Summary

• AVR enhanced RISC architecture executing instructions in a single clock cycle for high throughput
• picoPower technology enabling low power consumption across active and idle modes
• In-system programmable Flash memory supporting over 10,000 write/erase cycles
• Integrated analog comparator and programmable watchdog timer

Applications

• Battery-powered consumer electronics
• Industrial control systems
• LCD display drivers
• Toy manufacturing

Procurement Notes

Verify the specific suffix 'SSU' confirms the SSOP package, 20MHz speed grade, industrial temperature rating, and lead-free composition. Confirm the absence of the 'V' suffix indicates the 2.7V minimum operating voltage rather than the 1.8V variant. Ensure the source document explicitly lists this part number as active or obsolete status before procurement.

Selection Notes

Select this component when a compact 20-pin form factor is required alongside standard AVR compatibility. It is suitable for applications needing moderate Flash capacity and multiple I/O lines without USART support. Consider alternative packages like MLF if board space is more critical than pin count accessibility.

Part Context

This device belongs to the ATtiny family of low-power 8-bit CMOS microcontrollers manufactured by Atmel, now Microchip Technology. The series is designed for cost-sensitive applications requiring efficient code execution and flexible peripheral options within a small footprint.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.