ATMEGA640-16AU

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ATMEGA640-16AU

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IC MCU 8BIT 64KB FLASH 100TQFP

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Specifications

Attribute Value
Package Tray
Series AVR® ATmega
ProductStatus Active
CoreProcessor AVR
CoreSize 8-Bit
Speed 16MHz
Connectivity EBI/EMI, I²C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
NumberofI/O 86
ProgramMemorySize 64KB (32K x 16)
ProgramMemoryType FLASH
EEPROMSize 4K x 8
RAMSize 8K x 8
Voltage-Supply(Vcc/Vdd) 2.7V ~ 5.5V
DataConverters A/D 16x10b
OscillatorType Internal
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 100-TQFP

Overview

Description

The ATmega640-16AU is an 8-bit microcontroller from Microchip’s AVR family, based on the RISC architecture. It features 64KB Flash, 4KB SRAM, and 2KB EEPROM, making it suitable for complex embedded applications.
Operating at 16MHz, it includes 54 I/O pins, 4 UARTs, 8 PWM channels, and a 10-bit ADC, supporting versatile interfacing. It also offers JTAG and SPI for programming/debugging.
Built for industrial and automotive use, it operates at 1.8–5.5V, ensuring power efficiency. The TQFP-100 package makes it compact for PCB designs.
Key applications include automation, motor control, and IoT devices. Its robust peripherals and memory capacity make it ideal for mid-range embedded systems.

Equivalent

Equivalent products to the ATMEGA640-16AU include:
- ATMEGA1280-16AU (higher flash, same pinout)
- ATMEGA2560-16AU (higher flash, same pinout)
- ATMEGA640V-16AU (industrial temp range)
- ATMEGA1281-16AU (similar specs, smaller package)
These are pin-compatible or functionally similar 8-bit AVR microcontrollers with comparable features. For exact replacements, verify datasheet specs.

Pinout

The ATMEGA640-16AU is a microcontroller from Atmel's AVR family with the following specifications:
- Pin Count: 64 pins (TQFP package).
- Core: 8-bit AVR, operating at 16 MHz (16AU suffix).
- Flash Memory: 64 KB for program storage.
- SRAM: 8 KB.
- EEPROM: 4 KB.
- I/O Pins: 54 programmable I/O lines.
- Peripherals:
- 4 UARTs, 2 SPIs, 1 I²C.
- 16-channel 10-bit ADC.
- 4 timers (2x 8-bit, 2x 16-bit).
- PWM outputs.
- Voltage: 1.8V–5.5V operation.
Designed for embedded applications requiring high performance and connectivity.

Application

The ATmega640-16AU is a versatile 8-bit microcontroller from Microchip's AVR family. Key application areas include:
- Industrial Control: Automation systems, motor control, and sensors.
- Consumer Electronics: Home appliances, smart devices, and gadgets.
- Embedded Systems: Data loggers, IoT nodes, and peripheral controllers.
- Automotive: Dashboard controls, lighting systems, and basic ECUs.
- Robotics: Simple robotic controllers and servo management.
- Medical Devices: Low-complexity diagnostic and monitoring tools.
With 64KB Flash, 4KB RAM, and 16MHz operation, it suits cost-sensitive, moderate-performance applications requiring reliability and ease of development.

Package

The ATMEGA640-16AU comes in a TQFP (Thin Quad Flat Package) with 100 pins. It has a 16 MHz clock speed and operates at 5V. The package dimensions are 14x14 mm with a 0.5 mm pin pitch. This surface-mount package is commonly used in embedded systems for its compact size and reliable performance.

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