Microchip ATMEGA32U4-AU, 8 bit AVR, ATMEGA32U4 Microcontroller, 16 MHz, 32kB FLASH, 44-Pin TQFP

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Packaging Options:
RS Stock No.:
131-0289
Distrelec Article No.:
301-13-652
Mfr. Part No.:
ATMEGA32U4-AU
Manufacturer:
Microchip
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Brand

Microchip

Family Name

ATmega

Package Type

TQFP

Mounting Type

Surface Mount

Pin Count

44

Device Core

AVR

Data Bus Width

8bit

Program Memory Size

32 kB

Maximum Frequency

16MHz

RAM Size

2.5 kB

USB Channels

1

Number of PWM Units

1 x 8 bit

Number of SPI Channels

2

Number of CAN Channels

0

Number of USART Channels

1

Number of UART Channels

1

Typical Operating Supply Voltage

2.7 → 5.5 V

Number of I2C Channels

1

Number of PCI Channels

0

Number of Ethernet Channels

0

Number of LIN Channels

0

Height

1.05mm

Width

10.1mm

Dimensions

10.1 x 10.1 x 1.05mm

Pulse Width Modulation

1 (4 x 8 bit)

Number of ADC Units

1

Length

10.1mm

ADCs

12 x 10 bit

Maximum Number of Ethernet Channels

0

Instruction Set Architecture

RISC

Minimum Operating Temperature

-40 °C

Program Memory Type

Flash

Maximum Operating Temperature

+85 °C

ATmega32U4 8-Bit megaAVR Microcontrollers


The Atmel ATmega32U4 Microcontroller is an 8-bit megaAVR device based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle the ATmega32U4 achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and speed.

The ATmega32U4 features a USB 2.0 Device Module making it an ideal candidate for applications requiring USB connectivity. Also integrated is a JTAG interface for on-chip debug.

Microcontroller Features


16 MHz Max. Operating Frequency

Up to 16 MIPS at 16 MHz

32 KB Flash

1024 B EEPROM

2.5 KB SRAM

135 Instructions – Most single clock cycle execution

32 General Purpose Registers

26 GPIO

Power-on Reset and Programmable Brown-out Detection

Internal 8 MHz Calibrated Oscillator

Internal Clock Prescaler and On-the-fly Clock Switching

External and Internal Interrupt Sources

Six Power-Saving Sleep Modes

Internal and External Interrupts

Fully Static Operation

On-Chip 2-cycle Multiplier

Communication Features


USB 2.0 Full-speed/Low Speed Device Module

JTAG (IEEE1149.1 compliant) Interface

Programmable Serial USART with Hardware Flow Control

Master/Slave SPI Serial Interface

Byte Oriented 2-wire Serial Interface

Peripheral Features


On-chip PLL for USB and High-Speed Timer

10-bit Analogue-to-Digital Converter (ADC) – 12 Channel

One 10-bit High-Speed Timer/Counter with PLL (64 MHz) and Compare Mode

One 8-bit Timer/Counter with Separate Prescaler and Compare Mode

Two 16-bit Timers/Counters with Separate Prescaler, Compare and Capture Mode

Four 8-bit PWM Channels

Four PWM Channels with Programmable Resolution from 2 bits to 16 bits

Six PWM Channels for High-Speed Operation, with Programmable Resolution from 2 bits to 11 bits

Output Compare Modulator

Programmable Watchdog Timer with Separate On-chip Oscillator

On-chip Analogue Comparator

Interrupt and Wake-up on Pin Change

On-chip Temperature Sensor

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