ATTINY13A-SSUR

Overview

The ATTINY13A-SSUR is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture, manufactured by Microchip Technology. It features 1K bytes of In-System Programmable Flash, 64 bytes EEPROM, and 64 bytes SRAM. The device supports up to 20 MIPS throughput at 20 MHz and operates within a voltage range of 1.8V to 5.5V. Key peripherals include a 4-channel 10-bit ADC, an 8-bit Timer/Counter with PWM, an analog comparator, and a programmable watchdog timer. It utilizes debugWIRE for on-chip debugging and offers three software-selectable power-saving modes.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for optimized performance
• Integrated non-volatile memory segments including self-programmable Flash and EEPROM
• On-chip debug system allowing programming via SPI port without external hardware
• Multiple low-power sleep modes including Idle, ADC Noise Reduction, and Power-down

Applications

• Battery-powered consumer electronics requiring low standby current
• Simple sensor interfaces utilizing the integrated 10-bit ADC
• Basic motor or lighting control using PWM outputs from the Timer/Counter
• General-purpose logic replacement in compact embedded systems

Procurement Notes

Verify the specific suffix 'SSUR' against official Microchip documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with existing PCB footprints for the SOIC-8 package. Confirm that the industrial temperature range meets environmental requirements. Cross-reference fuse settings and lock bits if migrating from previous revisions.

Selection Notes

Select this component when design constraints demand minimal pin count alongside essential analog capabilities. The inclusion of a 10-bit ADC and analog comparator distinguishes it from simpler digital-only variants. Consider the trade-off between the 1KB Flash limit and code complexity. The static operation ensures reliability across the specified voltage and frequency ranges.

Part Context

This part belongs to the ATtiny13A family, which expands upon the original ATtiny13 with improved endurance and additional features like the analog comparator. It shares the same core architecture as larger ATtiny devices but is optimized for cost-sensitive, space-constrained applications. The series is widely supported by Microchip's development tools and compilers.

Replacement Considerations

Direct replacements include other ATtiny13A variants with different packaging options such as PDIP or VDFN. Verify electrical specifications match exactly before substituting. Note that ordering suffixes may indicate differences in reel size or moisture sensitivity levels rather than functional changes.

FAQ

How does the ADC Noise Reduction mode function?

This mode stops the CPU and all I/O modules except the ADC to minimize switching noise during conversions, optimizing accuracy for sensitive analog readings.

What is the maximum operating speed at 1.8V supply?

At a supply voltage of 1.8V to 5.5V, the device supports a maximum clock frequency of 4 MHz.