ATTINY828R-AU

Overview

The ATTINY828R-AU is an 8-bit AVR microcontroller featuring 8 KB of in-system programmable Flash, 512 bytes of SRAM, and 256 bytes of EEPROM. It operates at a maximum clock frequency of 20 MHz within a 32-TQFP package. The device supports a supply voltage range of 1.7 V to 5.5 V and includes a 10-bit ADC with 28 external channels. Interfaces include USART, SPI, and I2C.

Feature Summary

• High-performance 8-bit AVR architecture with single-cycle execution
• Integrated non-volatile memory for program and data storage
• Multiple timer/counters with PWM capabilities
• Programmable watchdog timer and analog comparator

Applications

• Battery-powered embedded systems
• Industrial control applications
• Sensor interface modules

Procurement Notes

Verify the specific suffix 'AU' corresponds to the TQFP-32 package and industrial temperature rating (-40°C to +85°C). Confirm datasheet revision matches current manufacturing specifications. Ensure ESD handling protocols are followed during assembly due to CMOS construction.

Selection Notes

Select this component when 8 KB of Flash and 28 I/O lines are required in a compact surface-mount package. Consider the 20 MHz speed grade relative to the 1.7 V minimum operating voltage. Evaluate power consumption requirements against available sleep modes including Idle and Power-down.

Part Context

This part belongs to the ATtiny828 family within Microchip's AVR portfolio. It utilizes the enhanced RISC core architecture common to the series. The device is designed for low-power applications requiring moderate processing capability and extensive peripheral integration.

Replacement Considerations

Consult official cross-reference documentation for verified substitutes. Verify pin compatibility and memory sizes before substitution.