ATXMEGA128D4-AU - 128KB Flash XMEGA AVR MCU 32MHz 44TQFP | Microchip
MPN: ATXMEGA128D4-AU ✓ Hoạt độngATXMEGA128D4-AU Tóm tắt
An 8/16-bit AVR XMEGA microcontroller is an advanced member of Microchip's AVR family combining 8-bit code density with 16-bit peripheral datapaths. It belongs to the broader class of microcontrollers (MCUs) within embedded processors and semiconductors, designed for deterministic real-time control with very low active and sleep-mode power. The XMEGA D4 sub-family specifically targets low-power mixed-signal applications requiring moderate pin counts and rich peripheral integration, sitting above tinyAVR and megaAVR in the Atmel/Microchip MCU hierarchy.
Key features include the four-channel event system for inter-peripheral signalling without CPU intervention, a programmable multi-level interrupt controller for deterministic response, a 12-bit 2 MSPS ADC with optional gain stage, and a hardware AES/DES cryptographic engine. The 8 KB boot section allows secure bootloader updates, while the read-while-write Flash enables live firmware upgrades without halting execution. Power-saving features include five sleep modes, a 1.5 µA real-time-counter backup mode, and a peripheral event system that can wake the CPU autonomously.
Typical applications include industrial control panels, sensor hubs, low-power wireless sensor nodes, motor control, smart metering, USB device peripherals, consumer white goods, and human-machine interface (HMI) touch panels. The wide 1.6-3.6 V operating range and integrated peripherals make it well suited to battery-powered and energy-harvesting designs.
Designers should provide a 0.1 µF decoupling capacitor adjacent to each VCC pin, route analog and digital grounds separately, and observe the 32 MHz maximum system clock. For firmware development, Microchip's Atmel Studio 7 and MPLAB X IDE with the AVR/GNU toolchain target this device directly.
Bộ thay thế dễ dàng lắp đặt cho ATXMEGA128D4-AU — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATXMEGA128D4-AU (cùng hình factor và footprint) — khác nhau ở Core Architecture, Package, Boot Code Section, EEPROM, SRAM.
ATXMEGA128A4U-AUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATXMEGA64D4-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATXMEGA32D4-AU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATMEGA2560-16AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM3U4EA-CU
Liên hệ để biết giá
Xem tài liệu →ATXMEGA128D4-AU Tỷ lệ tối đa & tính chất điện
| Core Architecture | AVR XMEGA (8/16-bit) |
| Program Memory (Flash) | 128 KB |
| Boot Code Section | 8 KB |
| EEPROM | 2 KB |
| SRAM | 8 KB |
| Maximum CPU Clock | 32 MHz |
| Supply Voltage Range | 1.6 V to 3.6 V |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| General-Purpose I/O Pins | 34 |
| Hộp | 44-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| USART | 2 |
| TWI (I2C) Interfaces | 2 |
| SPI Interfaces | 2 |
| 16-bit Timer/Counters | 4 |
| ADC | 12-bit, up to 2 MSPS |
| Crypto Accelerator | AES and DES |
| Event System Channels | 4 |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 3 |
Hướng dẫn cấu hình chân ATXMEGA128D4-AU 44-pin tqfp (10x10 mm)
Cấu hình chân cho ATXMEGA128D4-AU (44-pin tqfp (10x10 mm) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho ATXMEGA128D4-AU.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATXMEGA128D4-AU phù hợp cho 6 Áp dụngs: Industrial Sensor Hub, Smart Metering and Energy Monitoring, USB Human Interface Device (with companion), Battery-Powered Wearable Device, Motor Control and BLDC Driver, IoT Sensor Node with Secure Boot.
Industrial Sensor Hub
The ATXMEGA128D4-AU fits industrial sensor hubs through its 12-bit 2 MSPS ADC, two TWI (I2C) interfaces, and four 16-bit timer/counters, allowing simultaneous sampling of multiple analog sensors with deterministic timing. The 128 KB Flash hosts sensor-fusion firmware and protocol stacks (Modbus, IO-Link) while 8 KB SRAM holds time-series buffers. The 1.6-3.6 V supply range supports 3.3 V regulated industrial rails. The event system routes ADC conversions directly to DMA without CPU wakeup, cutting active duty cycle in battery-backed remote sensors.
Được đề xuất
Smart Metering and Energy Monitoring
The ATXMEGA128D4-AU's 128 KB Flash supports DLMS/COSEM or Open Smart Grid Protocol stacks while the hardware AES-128 accelerator secures communications. Its 12-bit ADC at 2 MSPS accurately samples current shunts and voltage dividers for class-0.5 metering accuracy. The four 16-bit timers drive tamper-detection inputs and metrology pulse outputs. Low-power sleep modes drop consumption below 1.5 µA with the RTC running, enabling 20+ year battery life on lithium cells used in gas and water meters.
Được đề xuất
USB Human Interface Device (with companion)
Although the D4 lacks native USB, the ATXMEGA128D4-AU can implement low-speed USB via the on-chip USART in software-bitbang mode or by pairing with an external USB bridge like the AT42QT2120. The 8 KB SRAM and 128 KB Flash comfortably host HID stacks and capacitive-touch decoders. The event system wakes the CPU on touch events without polling, while AES hardware accelerates secure pairing for wireless HID bridges.
Được đề xuất
Battery-Powered Wearable Device
The ATXMEGA128D4-AU suits wearables because of its deep-sleep current below 1.5 µA with RTC backup and the 1.6 V minimum supply that lets it run from nearly-depleted Li-ion cells. Its 34 GPIOs drive small OLEDs and capacitive-touch electrodes while two TWI ports interface to biometric sensors (heart-rate, SpO2). The 32 MHz peak performance executes DSP-style filtering for sensor fusion in real time. Compact 10x10 mm TQFP package fits wrist-worn form factors.
Được đề xuất
Motor Control and BLDC Driver
The ATXMEGA128D4-AU's four 16-bit timer/counters generate complementary PWM with dead-time insertion for BLDC and PMSM motors, while its 12-bit ADC samples back-EMF and phase currents synchronously. The event system triggers ADC conversions from timer compare events with zero CPU jitter, critical for field-oriented control loops. 8 KB SRAM holds observer state, and 128 KB Flash supports complex FOC and sensorless startup algorithms. Industrial -40C to +85C operation suits factory-floor deployments.
Được đề xuất
IoT Sensor Node with Secure Boot
The ATXMEGA128D4-AU's hardware AES/DES engine secures MQTT-SN or CoAP payloads over sub-GHz radios, while the 8 KB boot section enables secure bootloader updates for OTA firmware. Two USARTs drive an external LoRa or Sigfox transceiver and a debug console. With 1.6 V minimum supply, the device runs directly from energy-harvesting sources (solar, thermal). The event system wakes the CPU only when a transmission buffer is ready, maximizing battery life in remote IoT deployments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATXMEGA128D4-AU — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ATXMEGA128A4U-AUR | ATXMEGA64D4-AU | ATXMEGA32D4-AU |
|---|---|---|---|---|
| Package | TQFP-44 (10x10 mm) | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Flash Memory | 128 KB | 128 KB | 64 KB (-50%) | 32 KB (-75%) |
| SRAM | 8 KB | 8 KB | 4 KB (-50%) | 4 KB (-50%) |
| EEPROM | 2 KB | 2 KB | 2 KB | 1 KB (-50%) |
| Maximum Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage | 1.6 V to 3.6 V | 1.6 V to 3.6 V | 1.6 V to 3.6 V | 1.6 V to 3.6 V |
| USB Support | No (external required) | Yes (USB 2.0 FS) | No | No |
| GPIO Count | 34 | 34 | 34 | 34 |
Bảo phân biệt quan trọng
- Largest Flash in 44-pin XMEGA D4 family (vsATXMEGA64D4-AU)
- Integrated hardware AES/DES crypto (vsATMEGA328P-AUR)
- Same-brand pin-compatible upgrade path (vsATXMEGA128A4U-AUR)
Ghi chú thiết kế
Place a 0.1 µF decoupling capacitor within 5 mm of each VCC/AVCC pin, and add a 10 µF bulk capacitor on the main supply rail. The ATXMEGA128D4-AU has separate analog (AVCC) and digital (VCC) supplies; tie them together at the regulator output with a ferrite bead if the design mixes sensitive analog and noisy digital loads. AREF should be decoupled with 10 nF when using internal reference.
Route the PDI (Program and Debug Interface) signals to a 6-pin header with GND, VCC, PDI_DATA, PDI_CLK, and /RESET brought out for Atmel-ICE or JTAGICE3 in-circuit programming. Keep PDI traces short (under 50 mm) and shielded with ground. The 44-pin TQFP exposed pad (if present) should be soldered to a copper pour tied to GND for thermal dissipation and mechanical stability.
Do not exceed 32 MHz system clock or 3.6 V VCC. The brown-out detector (BOD) should be enabled in firmware with a threshold appropriate to the system clock (e.g., 2.7 V BOD for full-speed operation). The 8 KB SRAM is shared with the stack and heap; using -Os optimization and avoiding deep printf buffers is essential at high stack usage.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip product page; not AEC-Q100 qualified (commercial/industrial grade).