ATTINY402-SSN

ATtiny402-SSN is Microchip’s tinyAVR 0/1‑series 8‑bit microcontroller in an 8‑pin package. It’s designed for ultra‑small, low‑power embedded tasks and is suitable for simple sensors, switches, LED drivers, and tiny control loops.
Key points:
- Core and memory: a compact AVR 8‑bit core with onboard flash, RAM, and EEPROM for small programs and data.
- Peripherals: GPIO, timers, analog-to-digital converter (and other basic analog features), plus serial interfaces (UART/SPI/I2C), watchdog, and multiple sleep modes for power saving.
- Programming/debug: uses UPDI (Unified Program and Debug Interface); programmers/dongles are available to connect via USB.
- Package suffix: -SSN denotes the specific 8‑pin package variant used by Microchip (footprint and packaging; check the datasheet for exact dimensions).
- Development: Microchip Studio (Atmel Studio), MPLAB X, or AVR-GCC toolchain; easy start with small breakout boards or evaluation kits.
In summary, ATtiny402‑SSN is a tiny, low‑power AVR MCU for compact, inexpensive embedded projects.

Here are concise features for ATtiny402-SSN (tinyAVR 0-series):
- 8-bit AVR RISC core, 32 general-purpose registers; up to 20 MHz operation
- In-system programming via UPDI
- Memory: 4 KB Flash, 256 B RAM, 256 B EEPROM
- I/O: multiple GPIO with selectable pull-ups (in 8-pin package)
- Peripherals: 10-bit ADC (multi-channel), 1x 8-bit Timer/Counter with PWM, 1x 16-bit Timer/Counter
- Serial interfaces: USI with I2C/SPI support
- Power and sleep: sleep modes, brown-out detector, low-power operation
- Wake-up and interrupts: configurable interrupt system
- On-chip options: internal oscillator options; watchdog timer
- Package: SSN 8-pin small package
Note: exact peripheral counts and memory sizing can vary by package/revision. Check the latest datasheet for precise specs.

ATtiny402-SSN comes in a QFN (no-lead) package, typically a 16‑pin, 3×3 mm package with an exposed pad.

- Pin count: 14 pins (14-pin package)
- Function: ATtiny402-SSN is a TinyAVR 1-series 8‑bit microcontroller used for embedded control, offering general-purpose I/O, timers, ADC, and serial interfaces in a compact 14-pin package.

- Manufacturer: Microchip Technology Inc.
- What kind of company: An American multinational semiconductor company that designs and manufactures microcontrollers (including AVR/ATTiny), memory, and analog devices (an integrated device manufacturer).

Applications of ATtiny402-SSN include:
- Battery-powered sensing nodes and wearables
- Sensor interfacing and data acquisition (temp, humidity, light, gas)
- Home automation and consumer IoT devices
- Remote controls, key fobs, handheld devices
- LED lighting control and small motor/robot applications
- Touch-sensing interfaces (PTC)
- Prototyping and education for low-pin-count microcontroller projects