ATTINY13A-MU

Overview

The ATTINY13A-MU is an 8-bit AVR microcontroller featuring a 20-pad WQFN package. It includes 1K bytes of In-System Programmable Flash, 64 bytes EEPROM, and 64 bytes SRAM. The device supports a maximum clock frequency of 20 MHz with an operating voltage range of 1.8V to 5.5V. It integrates six programmable I/O lines, a 4-channel 10-bit ADC, an analog comparator, and an 8-bit Timer/Counter with PWM capabilities.

Feature Summary

• AVR enhanced RISC architecture executing most instructions in a single clock cycle for high throughput.
• In-system self-programmable Flash memory allowing reprogramming via SPI serial interface.
• Multiple software-selectable power-saving modes including Idle, Power-down, and ADC Noise Reduction.
• On-chip debugWIRE system supporting single-pin debugging and programming.

Applications

• Battery-powered embedded systems requiring low active current consumption.
• Simple sensor interfaces utilizing the integrated 10-bit ADC channels.
• Basic control loops managed by the 8-bit Timer/Counter with PWM outputs.
• Cost-sensitive applications leveraging the compact 20-pad WQFN footprint.

Procurement Notes

Verify the specific speed grade suffix matches the required operational frequency for the target voltage range. Confirm the MLF-20 package dimensions align with PCB layout constraints. Ensure the industrial temperature rating meets environmental specifications. Check for RoHS compliance status if required by regional regulations.

Selection Notes

Select this component when a balance of processing speed and minimal power usage is critical. The 20MHz capability allows for efficient code execution at lower voltages. Consider the limited pin count and memory size for complex logic requirements. The integrated analog comparator reduces external component needs for threshold detection.

Part Context

This part belongs to the ATtiny13A family within Microchip's tinyAVR portfolio. It utilizes the same core architecture as other variants but differs in package type and pin configuration. The 20-pad WQFN offers a small form factor suitable for dense board designs compared to larger DIP or SOIC options.

Replacement Considerations

ATTINY13A-MMU

FAQ

How does the ATTINY13A-MU handle program memory updates?

It uses In-System Programmable (ISP) Flash technology, allowing the program memory to be reprogrammed via an SPI serial interface without removing the chip from the circuit.

What is the function of the bottom pad on the 20-pad WQFN package?

The bottom pad should be soldered to ground to provide thermal dissipation and electrical grounding for the device.