ATTINY841-SSUR

Overview

The ATTINY841-SSUR is an 8-bit AVR microcontroller featuring 8K bytes of in-system programmable Flash, 512 bytes of EEPROM, and 512 bytes of SRAM. It operates at up to 16 MHz with a throughput of 16 MIPS. The device includes a 10-bit ADC with 17 channels, two USARTs, SPI, and TWI interfaces. It supports supply voltages from 1.7V to 5.5V and functions within an industrial temperature range of -40°C to +85°C. The component is housed in a 14-pin SOIC package.

Feature Summary

• Advanced RISC architecture enabling single-cycle instruction execution for high efficiency
• Integrated non-volatile memory with high endurance ratings for program and data storage
• Multiple communication peripherals including dual USARTs, SPI, and TWI interfaces
• Comprehensive analog subsystem with 10-bit ADC and programmable gain amplifiers

Applications

• Battery-powered sensor nodes requiring low power consumption
• Industrial control systems utilizing multiple serial communication protocols
• Data acquisition applications involving analog signal processing
• Embedded devices needing robust interrupt handling and timer capabilities

Procurement Notes

Verify the specific ordering code matches the required speed grade and package type. Confirm that the industrial temperature rating aligns with operational environmental requirements. Ensure compatibility with existing programming interfaces for in-system flashing. Check for any recent product change notices regarding packaging or pinout modifications.

Selection Notes

Select this model when 8K Flash capacity is necessary compared to the 4K variant. Choose the SSUR suffix specifically for surface-mount tape and reel packaging requirements. Consider the 16 MHz performance limit relative to the operating voltage constraints defined in the datasheet. Evaluate the need for dual USARTs versus single-channel alternatives.

Part Context

This component belongs to the ATtiny441/841 family of 8-bit AVR microcontrollers manufactured by Microchip Technology. It shares architectural similarities with other members of the tinyAVR series but offers distinct memory configurations. The device utilizes Atmel's high-density non-volatile memory technology for reliable data retention.

Replacement Considerations

ATtiny841-SSU serves as a tube-packaged alternative within the same electrical specification family.

FAQ

What is the maximum clock frequency supported by the ATTINY841-SSUR?

The device supports a maximum clock frequency of 16 MHz.

How many general purpose I/O lines are available on this microcontroller?

The ATTINY841-SSUR provides 12 programmable I/O lines across Port A and Port B.

Does the device include hardware support for serial communication protocols?

Yes, it features two full-duplex USARTs, a Master/Slave SPI interface, and a Slave TWI interface.