ATTINY13-20SSU

Overview

The ATTINY13-20SSU is an 8-bit AVR microcontroller manufactured by Microchip Technology, utilizing the ATtiny13 architecture. It features a high-performance, low-power CMOS design with an advanced RISC core executing most instructions in a single clock cycle. The device includes 1K bytes of In-System Programmable Flash, 64 bytes of EEPROM, and 64 bytes of internal SRAM. It operates at speeds up to 20 MHz when supplied with voltages between 4.5V and 5.5V, and supports a supply voltage range of 2.7V to 5.5V. The component is housed in an 8-lead Plastic Gull-Wing Small Outline (JEDEC SOIC) package.

Feature Summary

• AVR enhanced RISC architecture with 32 general-purpose working registers directly connected to the ALU for efficient code execution.
• Integrated non-volatile memory segments including self-programmable Flash, EEPROM, and SRAM with data retention capabilities.
• Peripheral set comprising a 4-channel 10-bit ADC, an 8-bit Timer/Counter with PWM channels, and an on-chip analog comparator.
• Supports debugWIRE on-chip debugging and in-system programming via SPI interface.

Applications

• Battery-powered consumer devices requiring low power consumption
• Simple sensor interfaces and monitoring systems
• Basic control logic in home appliances
• Educational embedded development platforms

Procurement Notes

Verify the specific ordering suffix 'SSU' corresponds to the 8-lead JEDEC SOIC package with gull-wing terminals as defined in the manufacturer's ordering guide. Confirm that the speed grade '20' matches the required operational frequency of 20 MHz at the target supply voltage range of 4.5V to 5.5V. Ensure compliance with industrial temperature specifications if operating in extreme environments.

Selection Notes

Select this component when a compact 8-bit solution with minimal I/O requirements is needed. It is suitable for applications where code size fits within 1KB Flash and limited RAM is sufficient. Consider the trade-off between processing speed and power consumption, noting that higher frequencies require higher supply voltages. Verify that the 6 available programmable I/O lines meet the interface needs without external multiplexing.

Part Context

This part belongs to the ATtiny13 family of 8-bit AVR microcontrollers produced by Microchip Technology. It shares the same core architecture and peripheral set as other variants in the series but differs in packaging and speed grades. The 'SSU' suffix specifically denotes the surface-mount SOIC package variant, distinguishing it from PDIP or MLF options.

Replacement Considerations

Direct pin-compatible replacements within the same package include ATTINY13-20SU and ATTINY13-20SUR. For broader compatibility across different packages, consider ATTINY13A-20SSU, though verify fuse settings and minor architectural updates. Cross-family migration to ATtiny25/45/85 requires significant software adaptation due to increased resources.