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ATMEGA32U4-AU
Microchip TechnologyRoHS 
RoHS compliant
RoHS compliantPackage 44-TQFP
Category Embedded - Microcontrollers / Embedded - Microcontrollers
Description
ATmega Series 32 KB Flash 2.5 KB SRAM 16 MHz 8-Bit Microcontroller - TQFP-44
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Inventory: 234
Minimum: 1
Total Price: USD $4.56
Unit Price: USD $4.56475
≥1 USD $4.56475
≥10 USD $3.7449
≥30 USD $3.62805
≥160 USD $3.5112
Technical Details
Supply Chain
Factory Lead Time 7 Weeks
Physical
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 44-TQFP
Number of Pins 44
Manufacturer Package Identifier ATMEGA32U4-AU
Dimensions
Height 1.05mm
Length 10mm
Width 10mm
Technical
Operating Temperature -40°C~85°C TA
Packaging Tray
Published 2001
Series AVR? ATmega
JESD-609 Code e3
Pbfree Code yes
Part Status Active
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Number of Terminations 44
Terminal Finish Matte Tin (Sn)
Subcategory Microcontrollers
Technology CMOS
Terminal Position QUAD
Terminal Form GULL WING
Peak Reflow Temperature (Cel) 260
Supply Voltage 5V
Frequency 16MHz
Time@Peak Reflow Temperature-Max (s) 40
Base Part Number ATMEGA32U4
Interface I2C, I2S, SPI, UART, USART, USB
Memory Size 32kB
Oscillator Type Internal
Number of I/O 26
RAM Size 2.5K x 8
Voltage - Supply (Vcc/Vdd) 2.7V~5.5V
uPs/uCs/Peripheral ICs Type MICROCONTROLLER, RISC
Core Processor AVR
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Program Memory Type FLASH
Core Size 8-Bit
Program Memory Size 32KB 16K x 16
Connectivity I2C, SPI, UART/USART, USB
Bit Size 8
Data Converter A/D 12x10b
Watchdog Timer Yes
Has ADC YES
DMA Channels NO
Data Bus Width 8b
Number of Timers/Counters 5
EEPROM Size 1K x 8
Number of ADC Channels 12
Number of PWM Channels 8
Number of I2C Channels 1
Compliance
Radiation Hardening No
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant
Lead Free Lead Free
Alternative Model
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