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Microchip Technology ATMEGA32-16PU — Microcontrollers & Processors (MCU / MPU / DSP)

Microchip ATMEGA32-16PU 8-bit AVR MCU, 16 MHz, 32 KB Flash

MPNATMEGA32-16PU
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Microchip AVR® ATmega series, ATMEGA32-16PU, 8-bit AVR MCU, 16 MHz, 32 KB Flash, 2K x 8 SRAM, 1K x 8 EEPROM, 32 I/O, 8x10-bit ADC, I²C/SPI/UART, 40-DIP (0.600", 15.24mm), Through Hole, -40°C~85°C, 4.5V~5.5V.

$8.1300Ref. price · indicative, final on quote
Packaging40-DIP (0.600", 15.24mm)
RoHSROHS3 Compliant
SeriesAVR® ATmega
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

ATMEGA32-16PU specifications
ParameterValue
SeriesAVR® ATmega
MountingThrough Hole
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))4.5V ~ 5.5V
Operating temperature-40°C~85°C(TA)
Speed16MHz
PackageTube
RAM size2K x 8
Core size8-Bit
EEPROM size1K x 8
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, SPI, UART/USART
Number of i (O)32
Core processorAVR
Case40-DIP (0.600\", 15.24mm)
Data convertersA/D 8x10b
Program memory size32KB (16K x 16)

Product details

16 MHz, 32 KB Flash, 40-pin DIP — the through-hole AVR that still runs production lines

The Microchip ATMEGA32-16PU is an 8-bit AVR microcontroller in the ATmega family, clocked at 16 MHz and packaged in a 40-pin DIP with 0.600-inch row spacing — the same footprint that's been socketed on industrial controllers, test fixtures, and hobbyist boards for decades.

Peripheral set — what the 32 I/O and ADC bring to the board

On-chip peripherals include brown-out detection, power-on reset, PWM outputs, and a watchdog timer, so a motor-drive or heater-controller board can run with minimal external supervision.

It is still in standard production, so there is no last-time-buy deadline to manage. ROHS3 compliant, and the 40-PDIP package is widely stocked across distribution channels.

Frequently asked questions

Is ATMEGA32-16PU a direct replacement for ATMEGA32-16PC?

The ATMEGA32-16PC was an older leaded (non-RoHS) version in the same 40-pin DIP package. The ATMEGA32-16PU is the RoHS3-compliant successor and is pin-compatible and functionally identical. The 'U' suffix indicates lead-free / RoHS. You can drop the -16PU into a socket that held a -16PC with no board change.

What is the difference between ATMEGA32-16PU and ATMEGA328P?

Both are 8-bit AVR MCUs, but the ATMEGA32-16PU has double the Flash (32 KB vs 16 KB), more I/O (32 vs 23), and comes in a 40-pin DIP (the 328P is typically 28-pin DIP or 32-pin TQFP). The 328P runs at 20 MHz max; the 32 runs at 16 MHz. They are not pin-compatible — the 32 is the larger, higher-I/O sibling.