ATTINY402-SSNR 8-Bit Microcontroller IC SOIC-8

ATTINY402-SSNR 8-Bit Microcontroller IC SOIC-8 is a high-performance, low-power RISC-based microcontroller that belongs to the tinyAVR® 0-series family. This compact 8-bit MCU features 4 KB of Flash memory and 256 bytes of SRAM, making it an ideal choice for space-constrained applications. Furthermore, the device utilizes the latest Core Independent Peripherals (CIPs) to handle tasks in hardware, which significantly reduces overall power consumption and increases system throughput. Consequently, developers can achieve sophisticated control logic with minimal code overhead. By integrating advanced features like an internal calibrated oscillator and flexible power management, the ATTINY402-SSNR delivers reliable performance for modern embedded designs. Therefore, you should consider this versatile IC for your next small-form-factor project requiring efficient 8-bit processing.

Key Features:

• High-Performance RISC CPU: Executes powerful instructions in a single clock cycle, achieving throughputs approaching 1 MIPS per MHz.
• Unified Programming and Debug Interface (UPDI): Simplifies the programming process by using a single pin for both programming and debugging, which saves valuable I/O pins.
• Core Independent Peripherals: Includes features like the Event System and Configurable Custom Logic (CCL) that operate without CPU intervention.
• Low Power Consumption: Offers multiple sleep modes, including Idle, ADC Noise Reduction, and Power-down, to extend battery life in portable devices.
• Internal Voltage Reference: Features multiple selectable internal voltage references for the 10-bit Analog-to-Digital Converter (ADC).

Technical Specifications:

• Flash Memory: 4 KB
• SRAM: 256 Bytes
• EEPROM: 128 Bytes
• Maximum Operating Frequency: 20 MHz
• Operating Voltage Range: 1.8 V to 5.5 V
• Number of I/O Pins: 6 Programmable I/O lines
• ADC Channels: 6-channel, 10-bit resolution
• Operating Temperature: −40°C to +105°C

Mechanical Specifications:

• Package Type: SOIC-8 (Small Outline Integrated Circuit)
• Mounting Style: Surface Mount Device (SMD/SMT)
• Lead Finish: Matte Tin (Sn)
• Moisture Sensitivity Level (MSL): MSL 1 (Unlimited floor life)

Dimensions:

• Body Length: ≈ 4.90 mm
• Body Width: ≈ 3.90 mm
• Overall Width (including pins): ≈ 6.00 mm
• Pitch (Pin-to-Pin): 1.27 mm
• Maximum Height: 1.75 mm

Pinout and Wiring:

• Pin 1 (VCC): Connect to the positive supply voltage (1.8V – 5.5V).
• Pin 2 (PA3): Digital I/O or Analog Input channel.
• Pin 3 (PA6): Digital I/O or UPDI Programming/Debug pin.
• Pin 4 (PA7): Digital I/O or Analog Input channel.
• Pin 5 (PA1): Digital I/O or I²C SDA / UART TX line.
• Pin 6 (PA2): Digital I/O or I²C SCL / UART RX line.
• Pin 7 (PA0): Reset pin or Digital I/O.
• Pin 8 (GND): Connect to the circuit common ground.

Datasheet Reference:

• Download Microchip ATTINY402 Datasheet

Commonly Used in:

• Industrial Sensors: Managing local data processing and signal conditioning in factory environments.
• Consumer Appliances: Controlling user interfaces and motor timings in small household devices.
• Battery Chargers: Monitoring voltage levels and managing charging cycles for Li-ion or NiMH batteries.

Applications:

• Smart Lighting: Implementing dimming control and motion detection in LED drivers.
• Wearable Tech: Handling basic logic and sensor polling in power-efficient wearable gadgets.
• Signal Conversion: Functioning as a simple bridge between analog sensors and digital communication protocols.

Equivalent Models:

• ATTINY202: Offers a smaller 2 KB Flash memory but maintains the same pinout and peripheral set.
• ATTINY412: However, this model provides more I/O pins in a slightly larger package for increased connectivity.
• ATTINY404: An upgraded version featuring more peripherals and memory in a 14-pin configuration.

Package Includes:

• 1 x ATTINY402-SSNR 8-Bit Microcontroller IC SOIC-8