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ATTINY45-15MT2
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Product Detailed Parameters
- Description：IC MCU 8BIT 4KB FLASH 20WQFN
- Series：AVR® ATtiny, Functional Safety (FuSa)
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Core Processor：AVR
- Core Size：8-Bit
- Speed：16MHz
- Connectivity：USI
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：6
- 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)：2.7V ~ 5.5V
- Data Converters：A/D 4x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 150°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-WQFN (4x4)
- Package / Case：20-WFQFN Exposed Pad
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The ATTINY45-15MT2 is an 8-bit microcontroller based on the AVR enhanced RISC architecture, manufactured by Microchip Technology. It features 4 KB of in-system programmable Flash memory, 256 bytes of EEPROM, and 256 bytes of SRAM. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports a maximum clock frequency of 16 MHz. It is housed in a 20-pin MLF package.
Feature Summary
- Low-power CMOS technology for energy-efficient embedded applications
- In-system programmable Flash memory allowing code updates without external programming devices
- Integrated analog-to-digital converter with multiple channels for sensor interfacing
Applications
- Automotive electronic modules requiring robust performance
- General-purpose embedded control systems
- Battery-powered devices utilizing low-power modes
Procurement Notes
Verify the specific suffix 'MT2' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 20-pin MLF configuration. Cross-reference part numbers with authorized distributors to avoid counterfeit components.
Selection Notes
Select this component when 4 KB of program memory and 256 bytes of data storage are sufficient for the application logic. Consider the 16 MHz processing speed and 2.7 V to 5.5 V operating range for power budgeting. Evaluate the 20-pin MLF package constraints for board space limitations.
Part Context
This model belongs to the ATtiny45 family, which shares core architectural features with the ATtiny25 and ATtiny85 variants. The primary distinction lies in the Flash memory capacity, with the ATtiny45 offering 4 KB compared to 2 KB or 8 KB in its siblings. All variants utilize the same AVR RISC core and peripheral set.
Replacement Considerations
Direct substitutes include the ATtiny45-20SU and ATtiny45-20MU, differing primarily in package style and maximum clock speed ratings. Verify pinout compatibility and thermal characteristics before substitution.
