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Microchip 8-bit AVR Microcontroller, 64kB Flash, 16 MHz, 64-Pin TQFP, Surface Mount ATMEGA645-16AU
Specifications
| Country of Origin | India |
|---|---|
| Brand | Microchip |
| Height | 1.05mm |
| Length | 14.1mm |
| Model | ATMEGA645-16AU |
| Width | 14.1mm |
| Mount Type | Surface |
| Series | ATMEGA645 |
| Maximum Operating Temperature | 85°C |
| Package Type | TQFP |
| Minimum Operating Temperature | -40°C |
| Ram size | 4kB |
| Interface Type | SPI, USART |
| Pin Count | 64 |
| Maximum Supply Voltage | 5.5V |
| Minimum Supply Voltage | 2.7V |
| Device Core | AVR |
| Program Memory Size | 64kB |
| Maximum Clock Frequency | 16MHz |
| Number of Programmable I/Os | 53 |
| Analogue Comparators | 1 |
| Number of Timers | 2 |
| Instruction Set Architecture | RISC |
| ADCs | 8 x 10 Bit |
| Program Memory Type | FLASH |
Key Features
- Equipped with 64kB In-System Programmable Flash memory for reliable code storage.
- Powers high performance digital tasks at a maximum clock frequency of 16 MHz.
- Provides 4kB RAM and 8 x 10-bit ADCs for flexible embedded system demands.
- Features a 64-pin TQFP surface-mount package for dense PCB layouts.
- Supports up to 53 programmable I/O lines for versatile connectivity.
- SPI and USART serial interfaces allow for easy integration with sensors and external modules.
- Wide operating voltage range from 2.7V to 5.5V accommodates varied power conditions.
- Designed to operate in harsh environments with a temperature range from -40°C to 85°C.
Product Description
The Microchip ATMEGA645-16AU is an advanced 8-bit AVR microcontroller engineered for complex embedded, automation, control, and instrumentation applications. Housed in a 64-pin TQFP surface-mount package, it combines robust functional density with flexible I/O and memory arrays suitable for demanding designs in industrial control panels, signal processing, and electronic instrumentation.
This microcontroller stands out with a substantial 64kB of programmable Flash and 4kB RAM, allowing for sophisticated program logic and rapid real-time operations. The RISC-based AVR core enables efficient instruction cycles, optimizing throughput even under intensive logic and data acquisition tasks. Integration of 8 x 10-bit ADCs supports precision signal capture for sensor-centric designs, while a pair of timers and one analogue comparator further extend its real-time and control capabilities.
The ATMEGA645-16AU supports versatile communications via SPI and USART interfaces, letting engineers reliably link to digital sensors, external modules, or other controllers in complex system topologies. Its support for up to 53 programmable I/Os offers a broad array of configurable ports, ideal for designs where multiple signal or actuator connections are needed, such as PLC modules, automation relays, or smart data acquisition systems.
Engineered for reliability, this microcontroller operates over a wide temperature range from -40°C to 85°C and accepts input supply voltages from 2.7V to 5.5V, making it fit for laboratory test benches, field devices, and rugged industrial environments. The compact 14.1 mm x 14.1 mm footprint and low 1.05 mm height streamline its integration into dense multilayer PCBs where board real estate and Z-height are critical constraints.
In summary, the Microchip ATMEGA645-16AU is a workhorse solution for demanding digital controls, signal processing, and embedded systems projects in industrial, laboratory, automation, data logging, and instrumentation markets. It is especially suited to industrial controllers, programmable logic devices, test measurement interfaces, and compact sensor integration. Discover more Microcontroller solutions from Microchip in EnvMart’s extensive electronics catalogue.
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Frequently Asked Questions
The maximum clock frequency of this microcontroller is 16 MHz.
It features a program memory size of 64kB, allowing for substantial code storage.
This microcontroller operates within a temperature range of -40°C to 85°C, making it suitable for harsh environments.
It supports up to 53 programmable I/O lines, providing versatile connectivity options.
This microcontroller includes SPI and USART serial interfaces for easy integration with sensors and external modules.
The microcontroller has a height of 1.05 mm and a footprint of 14.1 mm x 14.1 mm, suitable for dense PCB layouts.
It is equipped with 4kB of RAM, allowing for efficient data handling during operations.
The microcontroller operates with a minimum supply voltage of 2.7V and a maximum of 5.5V.
This model features 8 x 10-bit ADCs, which support precision signal capture for sensor applications.
This microcontroller is housed in a 64-pin TQFP surface-mount package.
It utilizes a RISC instruction set architecture, optimizing throughput for various applications.
It is suitable for complex embedded, automation, control, and instrumentation applications in industrial settings.
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