ATMEGA16U4-AU vs ATMEGA32U4 Comparison
Detailed side-by-side comparison of ATMEGA16U4-AU by Microchip Technology and ATMEGA32U4 by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
ATMEGA16U4-AU - 8-Bit AVR MCU 16KB Flash USB 16MHz | Microchip
ATMEGA16U4-AU ✓ ActiveMicrochip Technology
ATMEGA32U4 - 8-bit AVR MCU, 32KB Flash, USB 2.0 | Microchip
ATMEGA32U4 ✓ ActiveSpecification Comparison
| Parameter | ATMEGA16U4-AU | ATMEGA32U4 |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.19 | $3.72 |
| Core Processor | AVR 8-bit RISC | — |
| Core Size | 8-bit | — |
| Speed | 16 MHz | — |
| Flash Memory | 16 KB (8K x 16) | — |
| Boot Flash Section | 8 KB | — |
| EEPROM | 1 KB (1024 B) | 1 KB |
| SRAM | 2.5 KB | 2.5 KB |
| Supply Voltage Range | 2.7 V to 5.5 V | — |
| USB Controller | USB 2.0 full-speed / low-speed device | — |
| ADC | 12-channel, 10-bit | 12-channel, 10-bit |
| JTAG Interface | Yes, on-chip debug | Yes (on-chip debug) |
| Peripherals | High-speed PWM, USB, JTAG, brown-out detect, power-on reset | — |
| Instruction Set | 133 powerful instructions, most single-cycle | — |
| Package | 44-TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount | — |
| Life Cycle Stage | Active | — |
| Operating Temperature | [DATA_NEEDED: Operating temperature range] | -40 C to +85 C |
| Number of I/O | [DATA_NEEDED: Number of I/O pins] | — |
| Architecture | — | AVR enhanced RISC, 8-bit |
| Program Memory (Flash) | — | 32 KB (16K x 16), In-System Programmable |
| General Purpose I/O Lines | — | 26 |
| General Purpose Working Registers | — | 32 |
| Maximum Clock Frequency | — | 16 MHz |
| Throughput | — | Up to 16 MIPS (1 MIPS per MHz) |
| USB Interface | — | USB 2.0 full-speed / low-speed device, on-chip transceiver |
| Timer/Counters | — | 4 flexible + 1 high-speed (compare modes, PWM) |
| Communication Interfaces | — | 1x USART, 1x SPI, 1x I2C (TWI) |
| Operating Voltage | — | 2.7 V to 5.5 V |
| RoHS Status | — | Compliant (per ATMEGA32U4-AU DigiKey listing) |
| Programming Method | — | ISP via SPI, JTAG, USB bootloader |