Microchip Technology ATMEGA644P-20MQR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.97 | $6.97 |
| 15+ | $6.75 | $101.25 |
| 25+ | $6.61 | $165.25 |
| 50+ | $6.24 | $312.00 |
| 100+ | $5.51 | $551.00 |
| N+ | $1.10 | 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 | 20MHz |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 32 |
| 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) | 2.7V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 44-VQFN (7x7) |
| Package / Case | 44-VFQFN Exposed Pad |
| ROHS |  |
The Microchip ATMEGA644P-20MQR is an 8-bit AVR microcontroller with a 20MHz core, 64KB flash, and 4KB RAM. It operates from 2.7V to 5.5V and includes Brown-out Detect/Reset, POR, PWM, and WDT. Housed in a 44-VFQFN package, it is ideal for general-purpose embedded control.
- Large memory: 64KB flash for substantial application code.
- Wide voltage range: 2.7V to 5.5V simplifies power design.
- Proven AVR core: efficient execution and rich peripheral set.
- Compact package: 44-VFQFN with exposed pad for thermal dissipation.
Embedded Control Systems
64KB flash and 4KB RAM support complex state machines in industrial controllers at 20MHz.
Robotics
PWM channels drive servo motors, while WDT ensures safe operation during long missions.
Data Loggers
Low power consumption and wide voltage range allow battery-powered field data collection.
Automotive Aftermarket
Operating from -40°C to 105°C, it suits engine monitoring and dashboard add-ons.
Home Automation Hubs
Multiple I/O pins interface with sensors and relays, with POR protecting against power glitches.
Medical Monitoring Devices
Reliable operation and 5V compatibility make it suitable for patient vital sign monitors.
- Q: What is the core architecture?
- A: AVR 8-bit core running at 20MHz.
- Q: How much flash memory is available?
- A: 64KB (32K x 16 bits).
- Q: What is the supply voltage range?
- A: 2.7V to 5.5V.
- Q: What package is this?
- A: 44-VFQFN with exposed pad.
ATMEGA644P-20MQR.pdf
- Q: What is the core architecture?
- A: AVR 8-bit core running at 20MHz.
- Q: How much flash memory is available?
- A: 64KB (32K x 16 bits).
- Q: What is the supply voltage range?
- A: 2.7V to 5.5V.
- Q: What package is this?
- A: 44-VFQFN with exposed pad.
