ATTINY85-20SFR

Overview

The ATTINY85-20SFR is an 8-bit AVR microcontroller featuring 8 KB of In-System Programmable Flash, 512 bytes of EEPROM, and 512 bytes of SRAM. It operates at a maximum clock frequency of 20 MHz with a supply voltage range of 2.7 V to 5.5 V. The device includes a 4-channel 10-bit ADC, USI interface, and six programmable I/O lines. It utilizes an 8-pin SOIC package and supports industrial temperature ranges.

Feature Summary

• Executes powerful RISC instructions in a single clock cycle for high throughput efficiency.
• Includes a 4-channel 10-bit Analog-to-Digital Converter with differential inputs and programmable gain.
• Supports In-System Programming via SPI port for flexible firmware updates.

Applications

• Embedded control systems requiring low power consumption
• Sensor interfaces utilizing the integrated ADC capabilities
• General-purpose digital logic applications

Procurement Notes

Verify the specific suffix 'SFR' against official Microchip documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with existing PCB footprints for the 8-pin SOIC format. Confirm that the speed grade meets the system timing requirements for the target application environment.

Selection Notes

Select this component when 8 KB of program memory is required within a compact 8-pin footprint. It is suitable for designs needing multiple analog input channels or precise timing control via hardware timers. Consider the operating voltage range and thermal characteristics to ensure reliable performance under expected load conditions.

Part Context

This part belongs to the ATtiny family of 8-bit AVR microcontrollers manufactured by Microchip Technology. It shares architectural similarities with the ATtiny25 and ATtiny45 but offers increased non-volatile storage capacity. The series is designed for cost-sensitive applications demanding efficient code execution and minimal peripheral count.

Replacement Considerations

Direct substitutes include other variants within the ATtiny85 series with different suffixes indicating package variations. Cross-compatibility with ATtiny45 or ATtiny25 may be possible if memory constraints allow, though pinout and feature sets must be verified.

FAQ

["What is the maximum operating frequency?","The device supports a maximum clock frequency of 20 MHz."]

["How many analog input channels are available?","There are four single-ended channels available on the 10-bit ADC."]

["Is the device RoHS compliant?","Yes, the component complies with RoHS standards."]