ATmega32U4 8-bit MCU with USB Controller

Microchip Technology ATmega32U4 8-bit Microcontroller (MCU) with USB Controller is a low-power, AVR® RISC-based device featuring 32KB self-programming flash program memory, 2.5KB SRAM, 1KB EEPROM, USB 2.0 full-speed/low-speed device module, 12-channel, 10-bit analog-to-digital converter, and JTAG interface for on-chip-debug. This Microchip device achieves up to 16 MIPS throughput at 16MHz and 2.7 to 5.5V operation. By executing powerful instructions in a single clock cycle, Microchip ATmega32U4 MCU achieves throughputs approaching 1MIPS per MHz, allowing you to optimize power consumption versus processing speed.

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Qty. RoHS ECAD Model Core
Program Memory Size
Data RAM Size
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Microchip Technology 8-bit Microcontrollers - MCU AVR USB 16K FL 16MHz Ind Temp Grn
Datasheet
3,881In Stock
Cut Tape
$7.02
$6.86
$6.85
$6.73
View
Reel
$5.84
MouseReel Available
Min.: 1
Mult.: 1
: 1,500
AVR 32 kB 2.5 kB TQFP-44 16 MHz 10 bit 26 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega32U4 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR USB 32K FL 16MHz Ind Temp Grn
Datasheet
408In Stock
$6.84
$6.28
$5.69
Quote
Min.: 1
Mult.: 1
AVR 32 kB 2.5 kB QFN-44 16 MHz 10 bit 26 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega32U4 Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR USB 16K FL 16MHz Ind Temp Grn
Datasheet
794In Stock
Cut Tape
$5.98
$5.88
Reel
$5.82
MouseReel Available
Min.: 1
Mult.: 1
: 4,000
AVR 32 kB 2.5 kB QFN-44 16 MHz 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega32U4 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR USB 32K FLASH INDUSTRIAL
Datasheet
3,946In Stock
$6.88
$6.29
$5.71
Min.: 1
Mult.: 1
AVR 32 kB 2.5 kB TQFP-44 16 MHz 10 bit 26 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega32U4 Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR USB 32K FLASH INDUSTRIAL
Datasheet
4,084In Stock
$6.84
$6.28
$5.69
Min.: 1
Mult.: 1
AVR 32 kB 2.5 kB QFN-44 16 MHz 10 bit 26 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega32U4 Tray
Microchip Technology 8-bit Microcontrollers - MCU USB 32K Flash 16 MHz
Datasheet
2,401In Stock
Cut Tape
$7.01
$6.83
Reel
$5.82
MouseReel Available
Min.: 1
Mult.: 1
: 1,500
AVR 32 kB 2.5 kB TQFP-44 16 MHz 10 bit 26 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega32U4 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU USB 32K FLASH 16 MHz
Datasheet
822In Stock
4,000Expected 11/20/2026
Cut Tape
$7.02
$6.86
Reel
$5.84
MouseReel Available
Min.: 1
Mult.: 1
: 4,000
AVR 32 kB 2.5 kB QFN-44 16 MHz 10 bit 26 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega32U4 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR USB 32K FL 16MHz Ind Temp Grn
Datasheet
1,047In Stock
$6.84
$6.28
$5.69
Min.: 1
Mult.: 1
AVR 32 kB 2.5 kB TQFP-44 16 MHz 10 bit 26 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega32U4 Tray