ATXMEGA16E5-MU - 32MHz 16KB 8/16-Bit MCU | Microchip
MPN： ATXMEGA16E5-MU ✓ 啟用中ATXMEGA16E5-MU 概覽
An 8/16-bit microcontroller is a compact semiconductor controller that combines a processor core, nonvolatile program memory, data memory, timers, serial interfaces, and interrupt-driven peripherals in one package. The AVR XMEGA E5 architecture extends the classic AVR RISC concept with enhanced event handling and peripheral integration. Within the product hierarchy, this device is an MCU, an embedded processing IC, and a member of the Microchip AVR XMEGA family.
Key features include 32 KB total flash when the 16 KB application area and 4 KB boot section are combined, 512 bytes of EEPROM for persistent configuration, and 2 KB of SRAM for working data. The eight-channel event system can route and compare signals between peripherals, reducing CPU intervention in timing-sensitive designs. Read-while-write support permits programming operations without interrupting execution from the boot section, supporting field-update-oriented firmware strategies.
The ATxmega16E5 combines a 32 MHz maximum operating frequency with the AVR enhanced RISC architecture. This balance of processing speed, memory, and event-system integration is useful in compact controllers where response must be predictable without the overhead of a larger processor. The 1.6 V to 3.6 V supply range also supports integration with low-voltage sensors, transceivers, and mixed-signal peripherals.
Typical uses include industrial sensor controllers, compact communication modules, motor-control monitoring, low-power data-acquisition equipment, and embedded control systems with multiple event-driven inputs. The 32-pin QFN package can reduce board area compared with leaded packages, while the exposed-pad construction supports improved heat transfer when the PCB provides suitable copper area.
Design around the manufacturer’s recommended decoupling and exposed-pad layout. Keep the power-supply connection short, place input and output capacitors close to the relevant pins, and use the package thermal pad as specified by the datasheet rather than treating it as an optional copper feature. Firmware selection should account for the 4 KB boot section separately from the 16 KB application flash.
This page combines the manufacturer device details with practical memory, event-system, PCB, and replacement guidance. It also distinguishes the verified ATXMEGA16E5-MU configuration from related XMEGA E5 devices that differ in flash capacity, temperature code, or package ordering information.
直接替換替代品，適用於 ATXMEGA16E5-MU — 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： ATXMEGA16E5-MU （相同外形與佔位） — 差異在於 Package, Product Type, SRAM, Flash Memory, EEPROM.
ATXMEGA32E5-MU
✅ 直接替換聯絡詢價
查看資料表 →ATXMEGA8E5-MU
✅ 直接替換聯絡詢價
查看資料表 →ATXMEGA16E5-M4U
✅ 直接替換📋 參考替代品（不在目錄中）
ATXMEGA16E5-M4NR
✅ 直接替換📋 參考替代品（不在目錄中）
ATXMEGA32E5-MN
✅ 直接替換聯絡詢價
查看資料表 →ATXMEGA16E5-MU 最大額定值與電氣特性
| Product Type | 8/16-bit microcontroller |
| Architecture | AVR enhanced RISC |
| 最大時脈頻率 | 32 MHz |
| Application Flash Memory | 16 KB |
| Program Memory Organization | 8K x 16 words |
| Boot Code Section | 4 KB |
| Total Flash | 32 KB |
| EEPROM | 512 bytes |
| SRAM | 2 KB |
| Read-While-Write Flash | Supported |
| Event System | 8 channels |
| Programmable Multi-Level Interrupt | Supported |
| Operating Voltage Range | 1.6 V to 3.6 V |
| 封裝 | 32-pin QFN, 5 mm x 5 mm |
| 安裝類型 | Surface mount |
| Temperature Grade | Industrial |
ATXMEGA16E5-MU 32-pin qfn, 5 mm x 5 mm 腳位配置指南
ATXMEGA16E5-MU（32-pin qfn, 5 mm x 5 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： ATXMEGA16E5-MU.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATXMEGA16E5-MU 適用於 6 應用s: Industrial Sensor Controller, Low-Power Data Acquisition, Motor-Control Monitoring, Compact Communication Module, Programmable Logic Controller, LED and Lighting Controller.
Industrial Sensor Controller
The ATXMEGA16E5-MU fits industrial sensor-control boards that require local signal acquisition, event-driven decision-making, and compact firmware support. Its 32 MHz maximum clock provides useful timing margin, while the eight-channel event system can connect timer and comparator events without continuous CPU polling. The 16 KB application flash supports a bootable control application, and the separate 4 KB boot section can support field updates. Its 1.6 V to 3.6 V range also permits operation from low-voltage sensor rails. The 32-pin QFN package reduces board area, but designers should preserve the manufacturer’s exposed-pad and decoupling layout.
Low-Power Data Acquisition
The ATXMEGA16E5-MU can coordinate sensors and external converters in a compact low-power acquisition system. Its programmable multi-level interrupts and eight-channel event system help structure responses to timers, comparator events, and serial data, reducing the need for continuous polling. The controller includes 512 bytes of EEPROM for calibration or configuration data and 2 KB of SRAM for working buffers. Operated within the 1.6 V to 3.6 V range, it suits 1.8 V and 3.3 V designs. Low-power performance should be evaluated using the selected sleep modes and active peripherals rather than the maximum 32 MHz clock alone.
Motor-Control Monitoring
The ATXMEGA16E5-MU is appropriate for supervisory motor-control electronics where it monitors position, current, speed, or fault signals while a dedicated controller handles demanding power-stage timing. The eight-channel event system can organize periodic sampling and fault events, and the 32 MHz AVR XMEGA E5 core can perform local calculations and communications. Its 16 KB application flash provides room for a focused monitor, while the 4 KB boot section can hold an independent update routine. When connected to a motor environment, keep sensitive control paths separated from switching-node energy and follow the manufacturer’s grounding and decoupling recommendations.
Compact Communication Module
The ATXMEGA16E5-MU can serve as the protocol and control element in a compact communications module when the module requires local framing, status reporting, and configuration storage rather than extensive packet buffering. Its 2 KB of SRAM supports short protocol buffers, while 512 bytes of EEPROM retains calibration and device settings. The eight-channel event system can coordinate timing among serial peripherals, and programmable multi-level interrupts support responsive protocol handling. The 32-pin 5 mm by 5 mm QFN package helps miniaturize the board. RF or high-speed line-driver performance remains dependent on the external transceiver and the module’s signal-integrity design.
Programmable Logic Controller
The ATXMEGA16E5-MU can implement a small programmable controller for equipment sequencing, discrete input handling, and actuator outputs. Its 32 MHz maximum operating frequency supports responsive event-driven logic, while the event system provides eight channels for linking peripheral events. The 16 KB application flash is suitable for a focused control program, and the separate 4 KB boot-code section permits update-oriented designs. Operating from 1.6 V to 3.6 V allows integration with low-voltage industrial control hardware. For safety-related designs, add the required monitoring and isolation functions rather than treating a general-purpose microcontroller as a certified safety component.
LED and Lighting Controller
The ATXMEGA16E5-MU can coordinate dimming, sequencing, and status functions in an LED lighting controller. The eight-channel event system is useful for deterministic timing among timers and digital outputs, while programmable multi-level interrupts support responsive fault and command handling. The 16 KB application flash is adequate for a focused lighting sequence, and 2 KB of SRAM can hold timing state and display data. The controller can operate from 1.8 V or 3.3 V system rails within its 1.6 V to 3.6 V range, although LED drivers require separate external power stages. Keep high-current switching paths away from sensitive timing traces and use a dedicated ground-return strategy.
工程參考資料，適用於 ATXMEGA16E5-MU — 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 | ATXMEGA32E5-MU | ATXMEGA8E5-MU | ATXMEGA16E5-M4U | ATXMEGA16E5-M4NR | ATXMEGA32E5-MN |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 32-QFN (5x5 mm) | 32-QFN (5x5 mm) | 32-QFN (5x5 mm) | 32-VQFN exposed pad, 5x5 mm | 32-VQFN exposed pad, 5x5 mm | 32-VQFN, 5x5 mm |
| Application Flash | 16 KB | 32 KB | 8 KB | 16 KB | 16 KB | 32 KB |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Architecture | AVR enhanced RISC | AVR enhanced RISC | AVR enhanced RISC | AVR enhanced RISC | AVR enhanced RISC | AVR enhanced RISC |
| Event System | 8 channels | 8 channels | 8 channels | 8 channels | 8 channels | 8 channels |
主要差異化特點
- Balanced memory configuration within the XMEGA E5 family (對比ATXMEGA32E5-MU)
- Twice the application flash of the smaller E5 member (對比ATXMEGA8E5-MU)
- Low-voltage operation for compact embedded systems (對比ATXMEGA32E5-MN)
- Event-driven control without a larger processor (對比ATXMEGA8E5-MU)
設計說明
Design the power rail for the full 1.6 V to 3.6 V operating range and place the recommended decoupling capacitors close to the supply and ground pins. Keep analog, digital, and externally switched power paths separated until they meet at a controlled ground point. If the board derives the MCU rail from a switching converter, allow adequate settling time before the device starts. Review the maximum clock, active peripherals, I/O loading, and regulator headroom together because current consumption will vary with operating state.
Treat the exposed pad as a mandatory thermal and electrical structure rather than an optional connection. Use the manufacturer’s QFN land pattern, preserve pin-1 orientation, and provide a continuous ground plane with short thermal-via connections beneath the pad. Route high-current or fast-switching signals away from the MCU supply pins and sensitive inputs. Because the package is only 5 mm by 5 mm, assembly clearances, solder-mask definition, and component placement should be checked together before fabrication.
Do not treat the 4 KB boot-code section as ordinary application flash when calculating firmware capacity. The ATXMEGA16E5-MU has 16 KB of application flash plus a separate 4 KB boot section, and the manufacturer describes read-while-write capability from the boot area. Confirm the linker memory map, bootloader protocol, and application reset behavior. Also verify the exact ordering suffix before reuse because package, temperature, and reel designations can change procurement handling even when the base device remains ATxmega16E5.
Use the eight-channel event system and interrupt system deliberately rather than polling every peripheral in the main loop. Incorrect event routing, interrupt priority, or flag handling can cause timing that differs from the intended control behavior. Begin with a clear event map, initialize each peripheral before enabling its event channels, and define a deterministic recovery path for simultaneous events. This approach reduces CPU overhead while preserving predictable response in timing-sensitive embedded systems.
合規資訊
The product listing identifies the device as green, but no formal RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was identified for this exact ordering code.
