Microchip Technology ATMEGA644-20MU
Regular price
$6.52
Regular price
$6.86
Sale price
$6.52
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.52 | $6.52 |
| 15+ | $6.31 | $94.65 |
| 25+ | $6.17 | $154.25 |
| 50+ | $5.83 | $291.50 |
| 100+ | $5.15 | $515.00 |
| N+ | $1.03 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Tray | 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 ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 44-VQFN (7x7) |
| Package / Case | 44-VFQFN Exposed Pad |
| ROHS |  |
The ATMEGA644-20MU from Microchip is an 8-bit AVR MCU with a 20MHz clock. It provides 64KB flash and 4KB RAM, operating at 2.7V to 5.5V. The 44-VFQFN package includes brown-out detection, POR, PWM, and WDT, making it a versatile choice for industrial and consumer control systems.
- High speed: 20MHz for time-critical applications.
- Large memory: 64KB flash for complex firmware.
- Wide voltage: 2.7-5.5V simplifies power design.
- Compact footprint: 44-VFQFN saves PCB area.
Industrial Controllers
20MHz speed and 64KB flash handle complex logic and communication stacks.
Automotive Aftermarket
Wide voltage range and robust I/O support car alarm and telematics modules.
Home Automation
Multiple timers and PWM drive dimmers and motorized blinds.
Data Loggers
4KB RAM buffers sensor data; low-power modes extend field operation.
Test Equipment
High-speed GPIO and PWM generate precise waveforms for benchtop tools.
Security Systems
Brown-out detection and WDT ensure reliable alarm operation.
- Q: What is the core architecture?
- A: AVR 8-bit RISC.
- Q: What is the maximum speed?
- A: 20MHz.
- Q: What voltage is required?
- A: 2.7V to 5.5V.
- Q: How much flash and RAM?
- A: 64KB flash and 4KB RAM.
- Q: What package is available?
- A: 44-VFQFN exposed pad.
Base Product Number ：
ATMEGA644
ATMEGA644-20MU.pdf
- Q: What is the core architecture?
- A: AVR 8-bit RISC.
- Q: What is the maximum speed?
- A: 20MHz.
- Q: What voltage is required?
- A: 2.7V to 5.5V.
- Q: How much flash and RAM?
- A: 64KB flash and 4KB RAM.
- Q: What package is available?
- A: 44-VFQFN exposed pad.
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