Microchip Technology ATMEGA645P-MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.68 | $6.68 |
| 15+ | $6.47 | $97.05 |
| 25+ | $6.33 | $158.25 |
| 50+ | $5.98 | $299.00 |
| 100+ | $5.27 | $527.00 |
| N+ | $1.05 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Tray | |
| 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 ATMEGA645P-MU from Microchip is a high-performance 8-bit AVR microcontroller with 64KB flash and 4KB SRAM. Operating from 1.8V to 5.5V at up to 16MHz, it offers a perfect balance of power efficiency and processing capability. The 64-VFQFN package is compact for space-constrained designs. With built-in brown-out detection, PWM, and watchdog timer, it is engineered for reliable operation in industrial and automotive environments.
- Wide voltage range: Supports both 3.3V and 5V logic, simplifying system integration.
- High endurance flash: 64KB with 10,000 write/erase cycles for long-term data logging.
- Low power consumption: Multiple sleep modes reduce current draw to microamps in standby.
- Robust protection: Brown-out reset and watchdog timer prevent system lockups.
- Compact package: 64-VFQFN saves PCB space while providing 54 I/O pins.
Automotive Body Electronics
With a wide voltage range and robust I/O, the ATMEGA645P-MU handles window lift and mirror control modules in vehicles.
Industrial Automation Sensors
Its PWM outputs and ADC channels enable precise control of motor speed and position in factory sensors.
Smart Home Thermostats
The low-power sleep modes and 5V compatibility make it ideal for wall-mounted thermostats with LCD displays.
Portable Data Loggers
64KB flash allows storing extensive logs, while the 1.8V operation supports single-cell battery designs.
Power Tools and Motor Control
High-speed PWM and robust protection features suit brushless DC motor controllers in drills and saws.
Agricultural Monitoring Systems
Its ability to operate in harsh temperature ranges and with noisy power supplies ensures reliable field operation.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V, suitable for 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 program memory is available?
- A: It has 64KB of flash memory (32K x 16 bits).
- Q: Does it have a brown-out detector?
- A: Yes, it includes brown-out detection and reset circuitry.
- Q: What package is this?
- A: It comes in a 64-pad VFQFN exposed pad package.
ATMEGA645P-MU.pdf
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V, suitable for 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 program memory is available?
- A: It has 64KB of flash memory (32K x 16 bits).
- Q: Does it have a brown-out detector?
- A: Yes, it includes brown-out detection and reset circuitry.
- Q: What package is this?
- A: It comes in a 64-pad VFQFN exposed pad package.
