ATTINY28V-1AC

Overview

The ATtiny28V-1AC is an 8-bit microcontroller based on the AVR RISC architecture, manufactured by Microchip Technology. It features 2K bytes of in-system programmable Flash program memory with 1,000 write/erase cycle endurance and a 128-byte EEPROM. The device operates at speeds up to 1.2 MHz with a supply voltage range of 1.8V to 5.5V. It includes 11 general-purpose I/O lines, an 8-bit Timer/Counter, an on-chip analog comparator, and a built-in high-current LED driver. Power consumption is optimized with Idle and Power-down modes.

Feature Summary

• Utilizes the AVR RISC architecture for high-performance processing with most instructions executing in a single clock cycle.
• Integrates a built-in high-current LED driver with programmable modulation capabilities for direct display control.
• Supports low-power operation through software-selectable Idle and Power-down modes to minimize energy usage.
• Includes interrupt and wake-up functionality triggered by low-level input signals for responsive event handling.

Applications

• Embedded systems requiring direct LED driving without external drivers
• Battery-powered devices utilizing low-power sleep modes
• Simple control applications using internal oscillator and timer functions

Procurement Notes

Verify the specific package type required, as the ATtiny28V-1AC designation corresponds to the 32-lead TQFP package. Confirm that the industrial temperature range (-40°C to 85°C) matches your application requirements. Ensure compatibility with the 1.8V to 5.5V operating voltage range. Check for any obsolete status or end-of-life notices from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a cost-effective 8-bit solution with integrated LED drive capability is needed. It is suitable for applications where code space is limited to 2KB and minimal I/O count is sufficient. Consider the V suffix variant if operation below 2.7V is required. Evaluate power consumption specifications against battery life requirements.

Part Context

This device belongs to the ATtiny28 family, which also includes the ATtiny28L variant. The 'V' suffix indicates support for a lower minimum supply voltage of 1.8V compared to the 'L' variant's 2.7V minimum. The '1' speed grade denotes a maximum frequency of 1.2 MHz. The 'AC' suffix specifies the 32-lead Thin Plastic Quad Flat Package (TQFP) with industrial temperature rating.

Replacement Considerations

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