ATTINY841-SSU

Overview

The ATtiny841-SSU is an 8-bit AVR microcontroller in a 14-pin SOIC package. It features 8 kB of in-system programmable Flash, 512 bytes of EEPROM, and 512 bytes of SRAM. The device operates at up to 16 MHz with a supply voltage range of 1.7 V to 5.5 V. It includes two USARTs, one SPI interface, one I2C interface, a 10-bit ADC, and multiple timer/counters.

Feature Summary

• AVR enhanced RISC architecture executing most instructions in a single clock cycle
• In-system programmable non-volatile memory for Flash, EEPROM, and SRAM
• Dual full-duplex Universal Synchronous/Asynchronous Serial Receiver/Transmitters
• Master or Slave Serial Peripheral Interface and Two-Wire Interface

Applications

• Battery-powered devices requiring low power consumption
• Industrial control systems utilizing serial communication interfaces
• Sensor data acquisition using the analog-to-digital converter
• Motor control applications leveraging timer/counters and PWM channels

Procurement Notes

Verify the ordering code matches the specific speed grade and package variant required for your design. Confirm that the industrial temperature range meets your operational environment specifications. Ensure the 14-lead SOIC footprint aligns with your PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when 8 kB of program memory and dual USART capabilities are necessary within a compact 14-pin form factor. Consider the 16 MHz maximum frequency for processing requirements and verify that the 1.7 V minimum operating voltage suits your power supply design.

Part Context

This part belongs to the ATtiny441/ATtiny841 family of 8-bit AVR microcontrollers. These devices are designed for cost-sensitive applications requiring high performance and low power. The ATtiny841 provides double the Flash and RAM capacity compared to the ATtiny441 while sharing identical peripheral sets and pin configurations.

Replacement Considerations

The ATtiny441-SSU is a compatible alternative with reduced memory (4 kB Flash, 256 B EEPROM/SRAM). Other ATtiny series devices may offer different pin counts or peripheral sets but require schematic and firmware adaptation.