ATTINY402-SSN

ATtiny402-SSN is Microchip’s tinyAVR 0-series microcontroller in a compact package. It uses an 8-bit AVR RISC core designed for ultra-low power, small-footprint embedded tasks.
Notes:
- SSN suffix indicates a small, low-pin package; verify the exact footprint in the datasheet.
- Peripherals typically include memory (flash, RAM, EEPROM), a 10-bit ADC, timers, and serial interfaces (USART/UART, SPI/USI, I2C/TWI), plus the Event System for peripheral-to-peripheral signaling.
- Power/clock options and sleep modes favor battery-powered applications.
- Programming uses the single-wire UPDI interface (via Microchip Studio or AVR-GCC toolchain).
Typical use cases: battery-powered sensors, wearables, small controllers, IoT edge nodes.
Getting started: read the ATtiny402 datasheet, install Microchip Studio or set up AVR-GCC toolchain, select the -SSN device, wire UPDI for programming, and begin coding.
Note: exact memory sizes and peripheral counts vary by revision; confirm specs from the current datasheet.

Key features of ATtiny402-SSN (TinyAVR 0-series, 8-pin package):
- 8-bit AVR core (TinyAVR 0-series) with up to ~20 MHz operation
- UPDI programming; in-system programmable
- Memory: up to 2 KB Flash; 128 B SRAM; 128 B EEPROM
- Analog and ADC: 10‑bit ADC with mux; analog comparator
- Timers: PWM-capable timer/counters
- Serial interfaces: USART/UART; I2C (Two-Wire) and SPI via USI
- Peripherals for low power: Event System; Configurable Logic Cell (CCL)
- Power and sleep: 1.8–5.5 V operation; multiple sleep modes; Brown-out Detector; Watchdog Timer
- Packaging: 8-pin SSN
- Development: supported by AVR-GCC, Microchip Studio/Atmel Studio; bootloader friendly
Notes: exact memory and peripheral counts vary by package variant; check datasheet for the specific SSN device revision.

Pin count: 14 pins.
Function: ATtiny402-SSN is an 8-bit TinyAVR microcontroller (ATtiny402) in the SSN package, providing general-purpose I/O plus built-in peripherals such as ADC, USART/SPI/I2C (TWI), timers, and an event system for small embedded applications.

- Manufacturer: Microchip Technology Inc.
- What kind of company: A global American semiconductor company (Integrated Device Manufacturer) that designs, manufactures, and sells microcontrollers, memory, and analog devices. Microchip owns the AVR-based ATTINY line (via the Atmel acquisition) and is headquartered in Chandler, Arizona; it is publicly traded on NASDAQ as MCHP.

- Low-power, compact MCU for battery-powered devices (wearables, sensing nodes)
- Sensor interfacing and data logging (temperature, humidity, pressure, etc.)
- IoT edge devices and smart home sensors
- Consumer electronics, toys, remote controls, LED drivers
- Small industrial/automation controllers and embedded tasks
- Prototyping, educational kits and hobbyist projects
Reason: tiny, low-cost MCU suitable for simple control, sensing, and IoT applications in space/starved or power-constrained environments.

Package: SOT-23-6 (SC-70-6) 6-pin package.