Specifications
| Attribute | Value |
| Supplier | Microchip Technology |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | AVR® ATmega |
| ProductStatus | Active |
| CoreProcessor | AVR |
| CoreSize | 8-Bit |
| Speed | 16MHz |
| Connectivity | I²C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| NumberofI/O | 32 |
| ProgramMemorySize | 32KB (16K x 16) |
| ProgramMemoryType | FLASH |
| EEPROMSize | 1K x 8 |
| RAMSize | 2K x 8 |
| Voltage-Supply(Vcc/Vdd) | 4.5V ~ 5.5V |
| DataConverters | A/D 8x10b |
| OscillatorType | Internal |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 44-TQFP |
Overview
Description
ATmega32-16AUR is an 8‑bit AVR microcontroller from Atmel/Microchip. It targets small to mid‑range embedded projects and uses the AVR RISC core.
Key features
- Memory: 32 KB Flash, 1 KB EEPROM, 2 KB SRAM
- I/O: 32 general-purpose I/O lines (Ports A–D)
- Peripherals: 8‑channel, 10‑bit ADC; three timers (two 8‑bit, one 16‑bit) with PWM; USART, SPI, I2C (TWI); watchdog and several interrupt sources
- Clock/voltage: up to 16 MHz operation; 2.7–5.5 V supply
- Packaging: suffix AU typically denotes a 44‑pin TQFP/QFN package; R often indicates reel packaging
Typical use
- General embedded control, sensor interfacing, motor control, hobby electronics, and educational projects
Development
- Supported by AVR-GCC, Atmel Studio; program via ICSP or USB programmers
Note: For exact pinout, memory map, and electrical specs, refer to the ATmega32-16AUR datasheet.
Key features
- Memory: 32 KB Flash, 1 KB EEPROM, 2 KB SRAM
- I/O: 32 general-purpose I/O lines (Ports A–D)
- Peripherals: 8‑channel, 10‑bit ADC; three timers (two 8‑bit, one 16‑bit) with PWM; USART, SPI, I2C (TWI); watchdog and several interrupt sources
- Clock/voltage: up to 16 MHz operation; 2.7–5.5 V supply
- Packaging: suffix AU typically denotes a 44‑pin TQFP/QFN package; R often indicates reel packaging
Typical use
- General embedded control, sensor interfacing, motor control, hobby electronics, and educational projects
Development
- Supported by AVR-GCC, Atmel Studio; program via ICSP or USB programmers
Note: For exact pinout, memory map, and electrical specs, refer to the ATmega32-16AUR datasheet.
Equivalent
Equivalent parts (same MCU, different packaging/markings):
- ATmega32-16AU (same device in TQFP)
- ATmega32-16PU (same device in PDIP)
- ATmega32A-16AUR (RoHS/updated packaging variant of the same 32K/2K/1K device)
All share 32 KB Flash, 2 KB RAM, 1 KB EEPROM, AVR core, 16 MHz clock. Choose by package availability.
- ATmega32-16AU (same device in TQFP)
- ATmega32-16PU (same device in PDIP)
- ATmega32A-16AUR (RoHS/updated packaging variant of the same 32K/2K/1K device)
All share 32 KB Flash, 2 KB RAM, 1 KB EEPROM, AVR core, 16 MHz clock. Choose by package availability.
Features
Here are the key features of ATMEGA32-16AUR (ATmega32, 16 MHz, AU package):
- 8-bit AVR RISC CPU, single-cycle execution; up to ~16 MIPS at 16 MHz
- Memory: 32 KB Flash program memory with bootloader support; 2 KB SRAM; 1 KB EEPROM
- I/O: 32 general-purpose I/O lines (PORTA–PORTD)
- Analog: 8-channel 10-bit ADC
- Timers/Counters: Timer0 and Timer2 (8-bit) with PWM; Timer1 (16-bit) with PWM and input capture
- Communications: USART, SPI, and I2C (TWI)
- Debug/Interface: JTAG on Port C
- Programming: In-system programming (ISP) via SPI; bootloader support
- Clocks/Voltage: Up to 16 MHz operation; 2.7–5.5 V typical (4.5–5.5 V preferred for 16 MHz)
- Power management: Sleep modes, Idle, Power-down; Watchdog timer; Brown-out detector
- Package: 40-pin AU package (TQFP) common; compatible with DIP variants in other ATmega32 families
- Temperature range: -40 to 85°C
Concise and suitable for quick reference.
- 8-bit AVR RISC CPU, single-cycle execution; up to ~16 MIPS at 16 MHz
- Memory: 32 KB Flash program memory with bootloader support; 2 KB SRAM; 1 KB EEPROM
- I/O: 32 general-purpose I/O lines (PORTA–PORTD)
- Analog: 8-channel 10-bit ADC
- Timers/Counters: Timer0 and Timer2 (8-bit) with PWM; Timer1 (16-bit) with PWM and input capture
- Communications: USART, SPI, and I2C (TWI)
- Debug/Interface: JTAG on Port C
- Programming: In-system programming (ISP) via SPI; bootloader support
- Clocks/Voltage: Up to 16 MHz operation; 2.7–5.5 V typical (4.5–5.5 V preferred for 16 MHz)
- Power management: Sleep modes, Idle, Power-down; Watchdog timer; Brown-out detector
- Package: 40-pin AU package (TQFP) common; compatible with DIP variants in other ATmega32 families
- Temperature range: -40 to 85°C
Concise and suitable for quick reference.
Pinout
- Pin count: 44-pin package (AU variant uses a 44-pin TQFP form).
- Function: 8-bit AVR microcontroller (ATmega32) with 32 KB flash, 2 KB SRAM, 1 KB EEPROM; 32 I/O pins; dual USARTs, SPI, I2C (TWI); three timers (one 16-bit); 8-channel 10-bit ADC; PWM; operates up to 16 MHz at 2.7–5.5 V.
- Function: 8-bit AVR microcontroller (ATmega32) with 32 KB flash, 2 KB SRAM, 1 KB EEPROM; 32 I/O pins; dual USARTs, SPI, I2C (TWI); three timers (one 16-bit); 8-channel 10-bit ADC; PWM; operates up to 16 MHz at 2.7–5.5 V.
Manufacturer
- Manufacturer: Microchip Technology Inc.
- What kind of company: A global semiconductor company that designs, manufactures, and sells embedded-control products (microcontrollers, memory, analogs, and interfaces). It acquired Atmel in 2016 and continues the AVR/Atmel product lines; headquartered in Chandler, Arizona, USA and publicly traded (NASDAQ: MCHP).
- What kind of company: A global semiconductor company that designs, manufactures, and sells embedded-control products (microcontrollers, memory, analogs, and interfaces). It acquired Atmel in 2016 and continues the AVR/Atmel product lines; headquartered in Chandler, Arizona, USA and publicly traded (NASDAQ: MCHP).
Application
ATmega32-16AUR is an 8-bit AVR MCU with 32 KB flash, 2 KB SRAM, 1 KB EEPROM, 32 I/O pins, 16 MHz clock, and peripherals like USART, SPI, I2C, 8-channel 10-bit ADC, timers, and PWM. Common applications:
- Home automation and consumer electronics, IoT prototypes
- Industrial automation, sensors, data acquisition, instrumentation
- Robotics and motor control (PWM for DC/stepper/servo)
- Sensor interfacing, data logging, real-time monitoring
- Educational labs, DIY projects, product prototyping
- Small embedded controllers requiring moderate I/O and timing resources
- Home automation and consumer electronics, IoT prototypes
- Industrial automation, sensors, data acquisition, instrumentation
- Robotics and motor control (PWM for DC/stepper/servo)
- Sensor interfacing, data logging, real-time monitoring
- Educational labs, DIY projects, product prototyping
- Small embedded controllers requiring moderate I/O and timing resources
Package
40-pin TQFP (Quad/Lead Flat Package), i.e., a 40‑pin LQFP package.
