Microchip Technology

ATTINY861-20SU  

Microcontrollers

The ATTINY861-20SU is a low-power, high-performance 8-bit microcontroller (MCU) manufactured by Microchip Technology. It belongs to the AVR Enhanced series of MCUs, known for their efficient power consumption and small package size.

Description:

The ATTINY861-20SU features an 8-bit RISC architecture with 8 general-purpose registers, 32 general-purpose working registers, and a high clock rate of 20 MHz. It is available in a 28-pin Small Outline (SO) package, making it suitable for compact applications.

Features:

1. Memory: The ATTINY861-20SU comes with 8KB of In-System Programmable Flash memory, 512 bytes of EEPROM, and 6KB of internal SRAM.
2. I/O: It has 21 digital I/O lines with optional internal pull-up resistors and 4 channels of programmable digital input/output ports.
3. ADC: The MCU includes an 8-channel, 10-bit Analog-to-Digital Converter (ADC) with a maximum throughput of 100ksps.
4. Communication: It features a Universal Synchronous/Asynchronous Receiver/Transmitter (USART) for serial communication, a 2-wire Serial Interface (TWI), and a Serial Peripheral Interface (SPI) for high-speed data transfers.
5. Clock System: The ATTINY861-20SU has an internal RC oscillator, an external oscillator, and a clock division system for flexible clock management.
6. Power Management: The MCU offers various sleep modes to reduce power consumption, including Idle, ADC Noise Reduction, Power Down, Power Save, and Standby modes.
7. Interrupts: It has 18 interrupt sources with two-level priority and a Nested Vectored Interrupt Controller (NVIC) for efficient interrupt handling.
8. Security: The ATTINY861-20SU includes a JTAG interface for debugging and programming, as well as a bootloader section for secure firmware updates.

Applications:

The ATTINY861-20SU is suitable for a wide range of applications due to its low power consumption, small form factor, and versatile features. Some common applications include:

1. Industrial control and automation systems
2. Home automation and IoT devices
3. Portable electronics and battery-powered devices
4. Medical equipment and wearable devices
5. Smart sensors and data acquisition systems
6. Automotive control systems
7. Consumer electronics and appliances
8. Security systems and access control devices

The ATTINY861-20SU's combination of performance, power efficiency, and compact packaging make it an ideal choice for a variety of embedded systems and applications where space and power consumption are critical factors.

ATTINY861-20SU Documents

Download datasheets and manufacturer documentation for ATTINY861-20SU

Datasheets :

ATtiny261/461/861(V) Complete       ATtiny261/461/861(V) Summary      

PCN Packaging :

Boxes 07/Dec/2016       Transfer to Microchip/Label/Pkg 5/Sep/2016      

Design Resources :

ATtiny861 Development Tool Selector      

HTML Datasheet :

ATtiny261/461/861(V) Complete       ATtiny261/461/861(V) Summary      

PCN Design/Specification :

Marking Chgs 11/Jul/2017      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH