ATXMEGA16A4U-AUR vs ATMEGA32U4-AU Comparison
Detailed side-by-side comparison of ATXMEGA16A4U-AUR by Microchip Technology and ATMEGA32U4-AU 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
ATXMEGA16A4U-AUR - 16KB Flash 32MHz 8/16-bit AVR XMEGA MCU | Microchip
ATXMEGA16A4U-AUR ✓ ActiveMicrochip Technology
ATMEGA32U4-AU - 8-bit AVR MCU, 16MHz, 32KB Flash, USB | Microchip
ATMEGA32U4-AU ✓ ActiveSpecification Comparison
| Parameter | ATXMEGA16A4U-AUR | ATMEGA32U4-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.10 | $4.25 |
| Core Architecture | 8/16-bit AVR XMEGA RISC | 8-bit AVR RISC |
| Core Series | XMEGA A4U | — |
| Program Memory (Flash) | 16 KB (8K x 16) | — |
| Boot Code Section | 4 KB with Independent Lock Bits | — |
| SRAM | 2 KB | 2.5 KB |
| EEPROM | 1 KB | 1 KB |
| Maximum CPU Speed | 32 MHz (up to 32 MIPS) | — |
| Operating Voltage | 1.6 V to 3.6 V | — |
| Operating Temperature (Industrial) | -40C to +85C | — |
| USB Interface | USB 2.0 Full-Speed (12 Mbps) Device/Host/OTG | — |
| DMA Channels | 4 | — |
| Event System Channels | 8 | — |
| ADC | 12-bit, 1 MSPS | 12-channel, 10-bit |
| DAC | 12-bit, 1 MSPS | — |
| USART | 4 channels | — |
| TWI (I2C) | 2 channels | — |
| SPI | 2 channels | — |
| Crypto Accelerator | AES and DES | — |
| External Bus Interface | Yes (SRAM, SDRAM, NAND) | — |
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm, 0.8 mm pitch) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (AUR) | — |
| RoHS Status | Compliant | Compliant |
| CPU Speed | — | 16 MHz |
| Throughput | — | 16 MIPS at 16 MHz |
| Flash Program Memory | — | 32 KB (16K x 16) |
| Supply Voltage | — | 2.7 V to 5.5 V (verified 4.5-5.5V in some sources; full range per datasheet) |
| I/O Pins | — | 32 programmable |
| USB | — | USB 2.0 full-speed / low-speed device, on-chip transceiver |
| Timers | — | 4 (2x 8-bit, 2x 16-bit) |
| Communication | — | USB, USART, SPI, TWI (I2C) |
| Debug Interface | — | JTAG / debugWIRE |
| Operating Temperature | — | -40 C to +85 C (industrial) |
| Instruction Set | — | 131 instructions, mostly single-cycle |