| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
3,147 pcs
|
3147 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
800 pcs
|
800 pcs | On Request | 1 | On Request | On Request | 21+ | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Connectivity | |
| Core Processor | |
| Core Size | |
| Data Converters | |
| EEPROM Size | |
| Lead Style | |
| Mounting Type | |
| Number of I | |
| Operating Temperature | |
| Oscillator Type | |
| Peripherals | |
| Program Memory Size | |
| Program Memory Type | |
| RAM Size | |
| SVHC Present | |
| Speed | |
| Supplier Device Package | |
| Voltage |
The ATMEGA644-20AU is a high-performance, low-power 8-bit AVR microcontroller from Microchip Technology. It is based on the AVR core with an 8-bit RISC architecture, capable of up to 20 MIPS throughput at 20 MHz. The device features 64 KB of in-system self-programmable Flash memory, 2 KB EEPROM, and 4 KB internal SRAM. It includes a range of peripherals such as two 8-bit timers, one 16-bit timer, six PWM channels, an 8-channel 10-bit ADC, and serial interfaces including I²C, SPI, and UART/USART. The microcontroller operates from 2.7V to 5.5V and is specified for -40°C to +85°C temperature range. It is available in a 44-lead TQFP package (10x10 mm) for surface mount assembly. Typical applications include industrial control, automation, sensor interfaces, and embedded systems requiring a balance of performance and power efficiency.
The operating voltage range is 2.7V to 5.5V.
The package is 44-TQFP (10x10 mm).
The operating temperature range is -40°C to +85°C.
The part is listed as RoHS3 Compliant, but this information is unverified and should be confirmed with the manufacturer.
The maximum clock speed is 20 MHz.
It has 64 KB of Flash memory.
It supports I²C, SPI, and UART/USART interfaces.