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ATTINY44V-15SST
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Product Detailed Parameters
- Description：IC MCU 8BIT 4KB FLASH 14SOIC
- Series：AVR® ATtiny
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Core Processor：AVR
- Core Size：8-Bit
- Speed：8MHz
- Connectivity：USI
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：12
- Program Memory Size：4KB (2K x 16)
- Program Memory Type：FLASH
- EEPROM Size：256 x 8
- RAM Size：256 x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 3.6V
- Data Converters：A/D 8x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOIC
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Grade：-
- Qualification：-
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Overview
The ATtiny44V-15SST is an automotive-grade 8-bit AVR microcontroller designed for operation between 1.8V and 3.6V. It features 4KB of system-in-programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. The device supports a maximum frequency of 4MHz at 1.8V and up to 8MHz at 3.6V. It includes a 10-bit ADC with single-ended and differential channels, two 8-bit timers, and a programmable watchdog timer. Operating temperature range is -40°C to +85°C.
Feature Summary
- Automotive specification optimized for low voltage operation between 1.8V and 3.6V
- Includes Brown-Out Detection (BOD) with multiple selectable threshold levels
- Features internal RC oscillator calibration for reliable clock generation
- Supports in-system programming via SPI interface
Applications
- Automotive electronic modules requiring low-voltage operation
- Battery-powered embedded systems within specified voltage limits
- Industrial control applications operating in extended temperature ranges
Procurement Notes
Verify the specific ordering code matches the required package type and speed grade. Confirm that the application environment strictly adheres to the 1.8V to 3.6V supply voltage constraints. Ensure the design accounts for the -40°C to +85°C industrial temperature range specifications provided in the automotive datasheet appendix.
Selection Notes
Select this component when designs require automotive-grade reliability under low voltage conditions. The V suffix indicates support for the 1.8V to 3.6V range, distinct from standard variants. The 15 suffix denotes the 4-8 MHz speed capability. Verify compatibility with existing firmware regarding the specific electrical characteristics defined for the automotive variant.
Part Context
This part belongs to the ATtiny44V family, which is an automotive-specific derivative of the standard ATtiny44 series. It shares the same core architecture but is characterized for operation at lower supply voltages. The 'TU' package designation corresponds to a 14-lead SOIC form factor suitable for surface mount assembly.
Replacement Considerations
Standard ATtiny44 variants may not operate correctly below 2.7V. Verify if the application requires the specific 1.8V start-up characteristics or BOD settings unique to the V-series automotive parts.
