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ATMEGA645-16MU The ATMEGA645-16MU is an 8-bit AVR microcontroller from Microchip Technology featuring 64KB Flash memory, 4KB RAM, and 2KB EEPROM. It operates at up to 16MHz and includes peripherals such as SPI, UART, and PWM.
Mfr Part #:

ATMEGA645-16MU

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The ATMEGA645-16MU is an 8-bit AVR microcontroller from Microchip Technology featuring 64KB Flash memory, 4KB RAM, and 2KB EEPROM. It operates at up to 16MHz and includes peripherals such as SPI, UART, and PWM.
Total Stock: 21,555 pcs

ATMEGA645-16MU Available from 1 distributor

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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21,555 pcs
21555 pcs On Request 1 On Request On Request 2020+ On Request On Request

ATMEGA645-16MU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Speed (Maximum @ At 2.7 V -5.5 V)
Connectivity
Core Processor
Core Size
Data Converters
EEPROM Size
EEPROM Write/Erase Cycles
Flash Write/Erase Cycles
Max Throughput
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Power Consumption (Power Down Mode)
Power Consumption - Active Mode
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage

ATMEGA645-16MU Description

Short technical summary and product information.

The ATMEGA645-16MU is an 8-bit AVR microcontroller based on the advanced RISC architecture. It features 64KB of in-system self-programmable Flash memory, 4KB SRAM, and 2KB EEPROM with high endurance (10,000 Flash/100,000 EEPROM write/erase cycles). The device operates at a maximum speed of 16MHz (requiring 4.5V-5.5V) or 8MHz at lower voltages (2.7V-5.5V), delivering up to 16 MIPS throughput.

 

Peripherals include two 8-bit timers, one 16-bit timer, four PWM channels, an 8-channel 10-bit ADC, programmable USART, SPI, and USI with start condition detector. Additional features include brown-out detection, power-on reset, programmable watchdog timer, and five sleep modes for low-power operation.

 

The microcontroller is housed in a 64-VFQFN exposed pad package (64-QFN 9x9mm) and supports surface mount assembly. It is specified for industrial temperature range (-40°C to 85°C) and operates from a 2.7V to 5.5V supply.

ATMEGA645-16MU Quick Information

Product Type: Microcontroller
Series: ATmega645
Canonical Name: ATMEGA645-16MU
Subcategory: 8-bit Microcontroller

ATMEGA645-16MU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ATMEGA645-16MU Features

  • 8-bit AVR core with 16 MIPS throughput.
  • 64KB Flash, 4KB SRAM, 2KB EEPROM memory.
  • 53 I/O pins with SPI, UART, and USI connectivity.
  • 8-channel 10-bit ADC for analog inputs.
  • Operates from 2.7V to 5.5V supply.

ATMEGA645-16MU Applications

  • Industrial control and automation systems.
  • Sensor interfacing and data acquisition.
  • Embedded control with low-power sleep modes.
  • Communication via SPI and UART interfaces.
  • PWM generation for motor control and lighting.

ATMEGA645-16MU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATMEGA645-16MU?

2.7V to 5.5V, with 16MHz operation requiring 4.5V to 5.5V.

What is the package type of the ATMEGA645-16MU?

64-VFQFN Exposed Pad (64-QFN 9x9mm).

What is the operating temperature range?

-40°C to 85°C.

Is the ATMEGA645-16MU RoHS compliant?

It is listed as RoHS3 Compliant, but this has not been verified from official documentation.

What is the maximum clock speed?

16MHz at 4.5V-5.5V, 8MHz at 2.7V-5.5V.

How many ADC channels does it have?

8 channels with 10-bit resolution.

How many I/O pins are available?

53 I/O pins.

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