- RS Stock No.:
- 715-3805P
- Mfr. Part No.:
- ATMEGA32U4-AU
- Brand:
- Microchip
Discontinued product
- RS Stock No.:
- 715-3805P
- Mfr. Part No.:
- ATMEGA32U4-AU
- Brand:
- Microchip
Technical Reference
Legislation and Compliance
Product Details
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.
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
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
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
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
Specifications
Attribute | Value |
---|---|
Family Name | ATmega |
Package Type | TQFP |
Mounting Type | Surface Mount |
Pin Count | 44 |
Device Core | AVR |
Data Bus Width | 8bit |
Program Memory Size | 1 kB, 32 kB |
Maximum Frequency | 16MHz |
RAM Size | 2.5 kB |
USB Channels | 1 x Device |
Number of PWM Units | 3 |
Number of SPI Channels | 1 |
Number of I2C Channels | 1 |
Typical Operating Supply Voltage | 4.5 → 5.5 V |
Number of UART Channels | 0 |
Number of CAN Channels | 0 |
Number of USART Channels | 1 |
Number of LIN Channels | 0 |
Program Memory Type | Flash |
ADCs | 12 x 10 bit |
Width | 10mm |
Pulse Width Modulation | 4 x 16 bit, 4 x 8 bit, 6 x 11 bit |
Number of Ethernet Channels | 0 |
Height | 1.05mm |
Minimum Operating Temperature | -40 °C |
Maximum Operating Temperature | +85 °C |
Number of ADC Units | 1 |
Instruction Set Architecture | RISC |
Dimensions | 10 x 10 x 1.05mm |
Number of PCI Channels | 0 |
Length | 10mm |