Overview
The ATTINY85-20SU is a high-performance, low-power 8-bit microcontroller from Microchip Technology, based on the AVR enhanced RISC architecture. This microcontroller is known for its low power consumption and high processing performance, making it suitable for a wide range of applications. It features 8KB of in-system programmable flash memory, 512 bytes of EEPROM, and 512 bytes of SRAM. The device operates within a voltage range of 2.7 to 5.5V and can achieve a throughput of 20 MIPS at 20 MHz.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Microchip Technology |
| Microcontroller Type | 8-bit AVR RISC |
| Flash Memory | 8KB |
| EEPROM | 512 bytes |
| SRAM | 512 bytes |
| Operating Voltage | 2.7 - 5.5V |
| Clock Frequency | Up to 20 MHz |
| Number of I/O Lines | 6 |
| Number of PWM Channels | 2 |
| Number of 8-bit Timers | 2 |
| Number of 10-bit ADC Channels | 4 |
| Package Type | 8-pin SOIC, PDIP, TSSOP, QFN/MLF |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- High-performance, low-power AVR 8-bit microcontroller
- Advanced RISC architecture with 120 powerful instructions, most executing in a single clock cycle
- 32 x 8 general-purpose working registers
- Non-volatile program and data memories: 8KB flash, 512 bytes EEPROM, 512 bytes SRAM
- Peripheral features include 8-bit timer/counter, 8-bit high-speed timer/counter, USI, and 10-bit ADC
- Programmable watchdog timer with internal oscillator and analog comparator
- Low power idle, ADC noise reduction, and power-down modes
- Enhanced power-on reset circuit and programmable brown-out detection circuit
- Internal calibrated oscillator and debugWIRE on-chip debug system
- Six programmable I/O lines
Applications
The ATTINY85-20SU is versatile and can be used in a variety of applications, including:
- Automotive systems: Due to its robust operating temperature range and low power consumption.
- Consumer electronics: Such as remote controls, toys, and other portable devices.
- Industrial automation: For control and monitoring in industrial environments.
- IoT devices: Where low power and small footprint are critical.
- Robotics and hobby projects: Often used in Arduino and other DIY projects due to its ease of programming and compact size.
Q & A
- What is the ATTINY85-20SU microcontroller?
The ATTINY85-20SU is an 8-bit AVR RISC microcontroller from Microchip Technology, known for its high performance and low power consumption.
- What is the memory configuration of the ATTINY85-20SU?
The microcontroller has 8KB of flash memory, 512 bytes of EEPROM, and 512 bytes of SRAM.
- What is the operating voltage range of the ATTINY85-20SU?
The device operates within a voltage range of 2.7 to 5.5V.
- What is the maximum clock frequency of the ATTINY85-20SU?
The maximum clock frequency is up to 20 MHz.
- How many I/O lines does the ATTINY85-20SU have?
The microcontroller has six programmable I/O lines.
- What types of timers are available on the ATTINY85-20SU?
The device features one 8-bit timer/counter and one 8-bit high-speed timer/counter.
- Does the ATTINY85-20SU have an ADC?
Yes, it has a 10-bit ADC with four single-ended channels and two differential ADC channel pairs.
- What is the operating temperature range of the ATTINY85-20SU?
The operating temperature range is -40°C to 85°C.
- What are some common applications of the ATTINY85-20SU?
Common applications include automotive systems, consumer electronics, industrial automation, IoT devices, and robotics/hobby projects.
- How is the ATTINY85-20SU programmed?
The microcontroller can be programmed via the SPI port and supports in-system programming.
