Product Overview
The ATTINY13A-SHR is a Microchip 8-bit AVR tiny microcontroller with 1KB Flash, 64B SRAM, and 64B EEPROM. 20MHz operation. 10-bit 4-channel ADC. 8-bit timer with PWM. Extended temperature range to +125C. SOIC-8 package. Smallest AVR with ADC for compact sensing applications.
Key Specifications
| Type | 8-bit AVR Microcontroller |
| Core | AVR |
| Flash | 1 KB |
| SRAM | 64 B |
| EEPROM | 64 B |
| Clock | 20 MHz |
| Timer | 1 x 8-bit |
| ADC | 10-bit 4-ch |
| Interface | USI (SPI/I2C) |
| Supply Voltage | 1.8V to 5.5V |
| Operating Temp | -40 to +125C (Extended) |
| Package | SOIC-8 |
Working Principle
The AVR core uses a modified Harvard architecture with 32 8-bit general-purpose registers. Most instructions execute in a single clock cycle, achieving 1 MIPS/MHz throughput. The 3-stage pipeline fetches, decodes, and executes simultaneously. Self-programming flash supports bootloader operation. The 10-bit SAR ADC uses a successive approximation register with sample-and-hold. Power reduction register (PRR) shuts down unused peripherals. Idle, ADC noise reduction, power-down, and standby sleep modes reduce power consumption.
Applications
- Compact sensors
- Simple control
- Battery devices
- Space-constrained
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