ATXMEGA32D4-AN - 32MHz 32KB Flash AVR Microcontroller | Microchip
MPN： ATXMEGA32D4-AN ✓ 啟用中ATXMEGA32D4-AN 概覽
An AVR XMEGA microcontroller combines a reduced-instruction-computing core with extensive mixed-signal and connectivity peripherals. The ATXMEGA32D4-AN belongs to the XMEGA D4 family and combines in-system programmable flash, read-while-write operation, an event system, a programmable multilevel interrupt controller, and a 16-bit real-time counter. These resources make it suitable for embedded control systems requiring deterministic peripheral coordination and flexible low-power behavior.
The device provides 32 KB of ISP flash, including a dedicated 4 KB boot-code section, together with 4 KB of SRAM and 1 KB of EEPROM. Read-while-write flash supports convenient firmware updates, while the boot section allows application code to invoke a bootloader without consuming the main program area. The microcontroller also provides 34 general-purpose I/O lines for mixed analog and digital interfaces.
Its four-channel event system can route signals directly between peripherals, reducing processor involvement for time-critical tasks. The device includes four flexible 16-bit timer/counters with compare and PWM channels, two USARTs, two two-wire serial interfaces, and two SPI interfaces. A 16-bit real-time counter and a 12-bit ADC support industrial measurement, timing, monitoring, and control applications where a larger 8-bit peripheral set is useful.
Typical uses include industrial sensor nodes, motor and actuator controllers, instrumentation interfaces, building-control modules, and low-power embedded data-acquisition equipment. The 32 MHz operating speed supports responsive control loops, while the XMEGA event system improves peripheral timing without requiring continuous interrupt servicing.
Designers should preserve the device’s voltage, decoupling, clock, programming, and reset requirements from the manufacturer datasheet. In particular, use the specified supply range, provide suitable local bypass capacitance at VCC and AVCC pins, and verify programming signals and peripheral mappings against the package pinout before releasing a PCB.
This product page combines manufacturer specifications, package details, design guidance, application fit, and a pin-compatible family alternative to support faster engineering evaluation and sourcing decisions.
直接替換替代品，適用於 ATXMEGA32D4-AN — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATXMEGA32D4-AN （相同外形與佔位） — 差異在於 Flash Memory, Package, ADC Resolution, EEPROM Memory, Event System Channels.
ATXMEGA32D4-AU
✅ 直接替換聯絡詢價
查看資料表 →ATXMEGA32D4-AN 最大額定值與電氣特性
| Microcontroller Type | 8/16-bit AVR XMEGA microcontroller |
| 最大時脈頻率 | 32 MHz |
| Flash Memory | 32 KB |
| Boot Code Section | 4 KB |
| EEPROM Memory | 1 KB |
| SRAM | 4 KB |
| General-Purpose I/O | 34 lines |
| Event System | 4 channels |
| Timer/Counters | 4 flexible 16-bit timer/counters |
| Real-Time Counter | 16-bit |
| USART | 2 |
| Two-Wire Serial Interfaces | 2 |
| SPI Interfaces | 2 |
| ADC Resolution | 12-bit |
| Operating Voltage | 1.6 V to 3.6 V |
| 工作溫度 | -40°C to +105°C |
| 封裝 | 44-pin TQFP, 10 mm x 10 mm |
| 安裝類型 | Surface mount |
| Programming | In-system programmable flash with read-while-write |
| Program Memory Type | Flash |
ATXMEGA32D4-AN 44-pin tqfp, 10 mm x 10 mm 腳位配置指南
ATXMEGA32D4-AN（44-pin tqfp, 10 mm x 10 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATXMEGA32D4-AN.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATXMEGA32D4-AN 適用於 6 應用s: Industrial Sensor and Measurement Node, Motor and Actuator Controller, Building Automation Controller, Data Acquisition and Instrumentation, Communications Gateway, Real-Time Timing Module.
Industrial Sensor and Measurement Node
The ATXMEGA32D4-AN fits compact measurement nodes that must combine analog sensing with flexible digital connectivity. Its 12-bit ADC, 34 general-purpose I/O lines, and 1.6 V to 3.6 V operating range support low-voltage sensor interfaces, while two USARTs, two SPI interfaces, and two two-wire serial interfaces provide several ways to connect sensors and local converters. The 32 MHz CPU and four 16-bit timer/counters support responsive sampling and timing. The four-channel event system can also route peripheral events directly, reducing processor intervention during time-critical acquisition sequences.
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Motor and Actuator Controller
The ATXMEGA32D4-AN is suitable for motor, valve, and actuator control where several timers and deterministic event routing are valuable. Four flexible 16-bit timer/counters provide PWM, compare, and timing resources, while the 34 I/O lines support encoders, switches, gate drives, and status signals. At 32 MHz, the AVR core can execute control calculations and communicate with a host through USART or SPI. The event system can link timer outputs directly to other peripherals, helping reduce software latency in time-sensitive control routines.
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Building Automation Controller
The ATXMEGA32D4-AN can serve as a local building-automation controller for lighting, climate, access, and environmental equipment. Its low 1.6 V to 3.6 V supply range, -40°C to +105°C temperature rating, and 34 I/O lines support compact embedded control boards. Two USARTs and two two-wire serial interfaces allow local sensor and actuator networks, while the four timer/counters handle periodic sampling and output timing. The 4 KB SRAM and 32 KB flash provide capacity for protocol handling and application logic within a small 44-pin TQFP footprint.
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Data Acquisition and Instrumentation
The ATXMEGA32D4-AN is appropriate for instrumentation that combines a 12-bit ADC with multiple digital interfaces and precision timing. The four 16-bit timer/counters can coordinate sampling intervals, capture timing, and generate test waveforms, while the event system connects internal signals without continuous processor intervention. Four KB of SRAM supports buffering, and 1 KB of EEPROM can retain calibration parameters. Its 1.6 V to 3.6 V operating range also allows integration with low-voltage analog and mixed-signal circuitry.
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Communications Gateway
The ATXMEGA32D4-AN can bridge industrial or embedded serial equipment through its two USARTs, two SPI interfaces, and two two-wire serial interfaces. At 32 MHz with 4 KB of SRAM and 32 KB of flash, it can execute framing, protocol conversion, status collection, and local configuration tasks. The programmable interrupt controller and four-channel event system help coordinate incoming and outgoing events, while the boot-code section supports application updates. The 44-pin TQFP package provides a practical option for compact gateways requiring both communications and control functions.
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Real-Time Timing Module
The ATXMEGA32D4-AN fits timing modules that need a dedicated 16-bit real-time counter alongside four flexible timer/counters. The real-time counter can support calendar, elapsed-time, or periodic scheduling tasks, while the flexible timers provide compare, capture, and PWM functions. Two USARTs and two SPI interfaces allow synchronized devices to be monitored or configured. The low 1.6 V to 3.6 V supply range and -40°C to +105°C rating suit compact industrial timing equipment operating away from conventional office environments.
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推薦產品摘要
工程參考資料，適用於 ATXMEGA32D4-AN — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATXMEGA32D4-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP, 10 mm x 10 mm | 44-pin TQFP |
| Maximum Clock Frequency | 32 MHz | 32 MHz |
| Flash Memory | 32 KB | 32 KB |
| SRAM | 4 KB | 4 KB |
| EEPROM | 1 KB | 1 KB |
| Operating Voltage | 1.6 V to 3.6 V | 1.6 V to 3.6 V |
| General-Purpose I/O | 34 lines | 34 lines |
| Timer/Counters | 4 flexible 16-bit timer/counters | 4 flexible 16-bit timer/counters |
| Event System | 4 channels | 4 channels |
| Communications Interfaces | 2 USART, 2 SPI, 2 TWI | 2 USART, 2 SPI, 2 TWI |
主要差異化特點
- Directly timed peripheral event routing (對比ATXMEGA32D4-AU)
- 32 MHz processing with four flexible 16-bit timer/counters (對比ATXMEGA32D4-AU)
- Balanced embedded memory configuration (對比ATXMEGA32D4-AU)
設計說明
Keep the ATXMEGA32D4-AN within its specified 1.6 V to 3.6 V supply range and treat analog and digital supply requirements separately. Place the manufacturer-recommended bypass capacitors directly beside the relevant VCC and AVCC pins, with short return paths to their ground connections. A common supply-distribution network can simplify routing, but every analog domain should still meet the voltage and decoupling requirements stated in the Microchip family datasheet.
Use the 44-pin TQFP package drawing to establish the land pattern and confirm pin 1 orientation before routing. Keep traces to power, ground, reset, and clock pins short, and provide adequate via access around ground pins. The four-channel event system can reduce software timing overhead, but external clock, communication, and analog signals still require deliberate routing to avoid introducing noise into the 12-bit conversion results.
Do not assume that two XMEGA D4 ordering codes are automatically interchangeable. Before replacing ATXMEGA32D4-AN with ATXMEGA32D4-AU, compare the package drawing, temperature treatment, flash organization, boot section, supply limits, pin functions, and programming requirements in the manufacturer documentation. Also preserve the dedicated reset and programming connections so the finished board remains serviceable after substitution.
合規資訊
The -40°C to +105°C temperature rating supports industrial use but does not itself establish AEC-Q100 qualification. Compliance declarations must be confirmed for the exact ordering code.
