Microchip Technology ATMEGA644A-AUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.39 | $5.39 |
| 15+ | $5.22 | $78.30 |
| 25+ | $5.10 | $127.50 |
| 50+ | $4.82 | $241.00 |
| 100+ | $4.25 | $425.00 |
| N+ | $0.85 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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) | 1.8V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 44-TQFP (10x10) |
| Package / Case | 44-TQFP |
| ROHS |  |
The ATMEGA644A-AUR is an 8-bit AVR microcontroller from Microchip Technology, offering 64 KB of flash memory and 4 KB of SRAM. It operates at speeds up to 20 MHz and supports a wide supply voltage from 1.8V to 5.5V. Housed in a 44-pin TQFP package, it provides a balanced set of peripherals including PWM, watchdog timer, and brown-out detection for reliable embedded control applications.
- Wide Voltage Flexibility: 1.8V to 5.5V operation allows direct interfacing with both 3.3V and 5V logic without level shifters.
- Large Flash Memory: 64 KB of flash provides ample space for complex firmware and bootloaders.
- Low Power Consumption: Multiple sleep modes enable battery-powered designs with extended operational life.
- Proven AVR Architecture: Simple instruction set and rich ecosystem accelerate development cycles.
Embedded Control Panels
The 64 KB flash and 4 KB SRAM allow for complex user interface logic with multiple I/O pins, suitable for industrial control panels with LCD and keypad interfaces.
Data Logging Systems
With its low power consumption and wide voltage range, it can log sensor data over long periods in remote environmental monitoring stations.
Automotive Body Electronics
Operating at 5V and with robust I/O, it can handle window lift controls, mirror adjustment, and seat memory functions in automotive body modules.
Smart Home Gateways
The AVR core with PWM and UART interfaces can manage Zigbee or Z-Wave communication protocols in smart home hub designs.
Medical Monitoring Devices
Its reliability and low-power sleep modes make it suitable for portable patient monitors that require long battery life and consistent performance.
Agricultural Automation
In irrigation controllers, the ATMEGA644A-AUR can manage multiple solenoid valves and read soil moisture sensors with its analog comparators.
- Q: What is the core architecture of the ATMEGA644A-AUR?
- A: It uses the 8-bit AVR core from Microchip, running at up to 20 MHz.
- Q: What is the program memory size?
- A: It has 64 KB of in-system programmable flash memory.
- Q: What is the operating voltage range?
- A: It operates from 1.8V to 5.5V, making it versatile for various power supplies.
- Q: What package is this variant?
- A: It is available in a 44-pin TQFP package.
- Q: Does it have a brown-out detector?
- A: Yes, it includes a programmable brown-out detection circuit for reliable reset.
ATMEGA644A-AUR.pdf
- Q: What is the core architecture of the ATMEGA644A-AUR?
- A: It uses the 8-bit AVR core from Microchip, running at up to 20 MHz.
- Q: What is the program memory size?
- A: It has 64 KB of in-system programmable flash memory.
- Q: What is the operating voltage range?
- A: It operates from 1.8V to 5.5V, making it versatile for various power supplies.
- Q: What package is this variant?
- A: It is available in a 44-pin TQFP package.
- Q: Does it have a brown-out detector?
- A: Yes, it includes a programmable brown-out detection circuit for reliable reset.
