ATTINY26-16PI

Overview

The ATTINY26-16PI is an 8-bit AVR microcontroller featuring a 16 MHz maximum clock speed and a 4.5V to 5.5V operating voltage range. It includes 2KB of in-system programmable Flash memory, 128 bytes of EEPROM, and 128 bytes of SRAM. The device provides 16 programmable I/O lines within a 20-lead PDIP package. Key peripherals include an 11-channel 10-bit ADC with differential inputs, two 8-bit Timer/Counters with PWM outputs, a Universal Serial Interface (USI), and an on-chip analog comparator.

Feature Summary

• High-performance RISC architecture achieving up to 16 MIPS throughput at 16 MHz
• Integrated high-precision 10-bit ADC supporting single-ended and differential channels with programmable gain
• Dual 8-bit Timer/Counter modules providing independent PWM outputs with non-overlapping inverted pins
• Universal Serial Interface (USI) enabling software implementation of TWI or SM-bus protocols

Applications

• Battery charger systems
• Lighting ballast applications
• Low-end thermostats
• Fire detectors

Procurement Notes

Verify the specific ordering code matches the required speed grade and package type. Confirm that the power supply voltage meets the minimum 4.5V requirement for this variant. Ensure the design accommodates the industrial temperature range specifications. Cross-reference the datasheet revision history for any errata regarding analog comparator delays during slow power-up sequences.

Selection Notes

Select this component when a low-power 8-bit solution with integrated ADC and communication interfaces is required. The ATtiny26L variant offers lower voltage operation down to 2.7V but is limited to 8 MHz. Consider the PDIP package for through-hole mounting requirements. Evaluate the available I/O lines against peripheral multiplexing needs.

Part Context

This device belongs to the ATtiny26 family, manufactured using high-density non-volatile memory technology. It combines an enhanced RISC 8-bit CPU with Flash on a monolithic chip. The architecture utilizes 32 general-purpose working registers connected directly to the ALU for efficient single-cycle instruction execution.

Replacement Considerations

ATtiny26L-16PU: Lower voltage variant with reduced speed limit.