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ATTINY402-SSN
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Product Detailed Parameters
- Description：IC MCU 8BIT 4KB FLASH 8SOIC
- Series：tinyAVR™ 0, Functional Safety (FuSa)
- Mfr：Microchip Technology
- Package：Tube
- Core Processor：AVR
- Core Size：8-Bit
- Speed：20MHz
- Connectivity：I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：6
- Program Memory Size：4KB (4K x 8)
- Program Memory Type：FLASH
- EEPROM Size：128 x 8
- RAM Size：256 x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 6x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Grade：-
- Qualification：-
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Overview
The ATtiny402-SSN is an 8-bit AVR microcontroller featuring 4 KB of Flash memory, 256 bytes of SRAM, and 128 bytes of EEPROM. It operates at a maximum clock frequency of 20 MHz within a voltage range of 1.8 V to 5.5 V. The device includes a 10-bit ADC, USART, SPI, TWI, TCA, TCB, RTC, CCL, AC, and WDT peripherals. It utilizes a Single Pin Unified Program Debug Interface (UPDI) for programming and debugging. The component is housed in an 8-pin SOIC package and supports industrial temperature ranges.
Feature Summary
- Integrates picoPower technology with configurable sleep modes including SleepWalking for low-power applications
- Features a high-performance 8-bit AVR RISC CPU running up to 20 MHz with single-cycle I/O access
- Includes core-independent peripherals such as Event System, Configurable Custom Logic, and Real-Time Counter
Applications
- Battery-powered sensor nodes
- Industrial control systems
- Smart home appliances
Procurement Notes
Verify the specific suffix SSN corresponds to the 8-pin SOIC package and standard commercial/industrial temperature grade. Confirm RoHS compliance status through official Microchip documentation prior to procurement. Ensure ordering codes match the exact memory configuration and speed grade required for the design.
Selection Notes
Select this model when 4 KB of program memory and 256 bytes of RAM are required. Choose the SSN package variant for surface-mount assembly needs. Consider the 20 MHz speed grade if higher processing throughput is necessary compared to lower-speed variants within the same family.
Part Context
This component belongs to the tinyAVR 0-Series family, designed for cost-sensitive embedded applications. It shares architectural similarities with the ATtiny202 but offers double the Flash and SRAM capacity. The series emphasizes energy efficiency and peripheral flexibility for compact designs.
Replacement Considerations
ATtiny202-SSN: Offers identical pinout and features but with reduced memory (2 KB Flash, 128 B SRAM). Verify software compatibility and memory usage constraints before substituting.
