Microchip Technology ATMEGA645P-MUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 15+ | $6.63 | $99.45 |
| 25+ | $6.49 | $162.25 |
| 50+ | $6.13 | $306.50 |
| 100+ | $5.41 | $541.00 |
| N+ | $1.08 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Cut Tape (CT) | NULL |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Connectivity | SPI, UART/USART, USI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 54 |
| Program Memory Size | 64KB (32K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 2K x 8 |
| RAM Size | 4K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 64-QFN (9x9) |
| Package / Case | 64-VFQFN Exposed Pad |
| ROHS |
The Microchip ATMEGA645P-MUR is an 8-bit AVR microcontroller in a 64-VFQFN package. It operates from 1.8V to 5.5V at up to 16MHz. Featuring 64KB flash and 4KB RAM, it includes brown-out detection, POR, PWM, and WDT. Its wide voltage range and large memory make it versatile for industrial and consumer applications.
- Large 64KB flash – supports complex firmware and data logging.
- Wide voltage range (1.8V-5.5V) – simplifies power supply design.
- 64-pin VFQFN with exposed pad – improves thermal performance in high-current designs.
- Integrated PWM and WDT – reduces external components and enhances reliability.
Industrial Automation HMI Panels
The 64KB flash and 4KB RAM allow storing complex user interface graphics and communication protocols for operator terminals.
Smart Metering Systems
With 1.8V operation and 16MHz speed, it can process energy measurement algorithms while maintaining low power in utility meters.
Medical Monitoring Equipment
The 5.5V tolerance and PWM outputs enable driving pumps or alarms in patient vital-sign monitors.
Robotics Controllers
Its 64-pin package provides ample I/O for motor encoders and PWM for servo control in educational robots.
Automotive Body Electronics
Operating from -40°C to 85°C, it handles window lift or mirror control with integrated WDT for safety.
Consumer Appliances
The large flash memory supports multi-mode washing machine or dishwasher cycles with EEPROM emulation.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V, compatible with both 3.3V and 5V systems.
- Q: What is the maximum clock speed?
- A: The AVR core runs at up to 16MHz.
- Q: How much flash memory is available?
- A: It has 64KB of flash (32K x 16-bit words) for program storage.
- Q: What package is this?
- A: It comes in a 64-pin VFQFN with exposed pad for thermal dissipation.
- Q: Does it support PWM?
- A: Yes, it includes PWM channels along with brown-out detection and WDT.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V, compatible with both 3.3V and 5V systems.
- Q: What is the maximum clock speed?
- A: The AVR core runs at up to 16MHz.
- Q: How much flash memory is available?
- A: It has 64KB of flash (32K x 16-bit words) for program storage.
- Q: What package is this?
- A: It comes in a 64-pin VFQFN with exposed pad for thermal dissipation.
- Q: Does it support PWM?
- A: Yes, it includes PWM channels along with brown-out detection and WDT.

ATMEGA645P-MUR.pdf