ATXMEGA32E5-AN - 32MHz 32KB MCU | Microchip Technology
料号： ATXMEGA32E5-AN ✓ 量产中ATXMEGA32E5-AN 概述
An 8/16-bit AVR XMEGA microcontroller is a compact embedded-control component that combines a processor core, nonvolatile program memory, data memory, interrupt handling, timers, communication peripherals, and analog or digital I/O on one integrated circuit. In the product hierarchy, it is an MCU, then a microcontroller, then an embedded semiconductor. This integration allows a compact control design to replace separate processor, memory, and peripheral circuitry while retaining deterministic event-driven behavior.
The ATXMEGA32E5-AN's principal advantages include 32 KB of Flash, 4 KB of SRAM, 1 KB of EEPROM, a dedicated 4 KB boot section, and support for read-while-write operation. Its eight-channel event system can connect peripherals directly so that timer, comparator, or other events trigger actions without continuous processor polling. The 32 MHz clock provides substantially more instruction throughput than lower-speed 8-bit designs, while the 32-pin package keeps the device practical for compact embedded boards.
The device belongs to the AVR enhanced RISC architecture family and is positioned as a low-power, peripheral-rich control platform. Read-while-write capability can support firmware updates or data manipulation in Flash without requiring every program-memory access to stop the entire device. The combination of event-system hardware, programmable interrupt levels, 1.6 V to 3.6 V operation, and separate boot space makes the ATXMEGA32E5-AN useful where deterministic event routing and in-system programmability are more important than a larger general-purpose MCU footprint.
Typical uses include compact industrial controllers, connected sensor nodes, building and access-control modules, data acquisition units, communication equipment, and low-power embedded products. The 32 KB Flash capacity supports a meaningful application program, while 4 KB SRAM accommodates working state and buffers. The 1 KB EEPROM provides nonvolatile parameter storage, and the 4 KB boot section allows a bootloader to remain available when application firmware is updated.
Designers should use the Microchip ATxmega32E5 family data sheet as the authoritative source for the complete 32-pin assignment, clock configuration, peripheral multiplexing, and electrical limits. The ATXMEGA32E5-AN uses the -AN package and temperature designation, so board designs must preserve its TQFP-32 footprint, supply range, and pin functions rather than assuming compatibility with the smaller QFN packaging of another ATxmega32E5 ordering code. Firmware and peripheral migrations should likewise be checked against the family data sheet.
This page consolidates the verified manufacturer and distributor facts for the ATXMEGA32E5-AN with same-footprint selection guidance, package-aware alternatives, comparison parameters, and practical engineering considerations. It also distinguishes confirmed ATxmega32E5-AN attributes from ordering variants that require firmware, footprint, and temperature verification before substitution.
直接替换替代料： ATXMEGA32E5-AN ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATXMEGA32E5-AN （相同外形与封装尺寸） ——差异在于 Boot Code Section, EEPROM, Event System, Package, SRAM.
ATXMEGA32E5-AU
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATXMEGA16E5-AN
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATXMEGA16E5-AU
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATXMEGA8E5-AN
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →ATXMEGA8E5-AU
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATXMEGA32E5-AN 最大额定值与电气特性
| Device Type | 8/16-bit AVR XMEGA E5 microcontroller |
| 最大时钟频率 | 32 MHz |
| Program Memory | 32 KB Flash, organized as 16K x 16 |
| Boot Code Section | 4 KB |
| Read-While-Write | Supported |
| EEPROM | 1 KB |
| SRAM | 4 KB |
| Event System | 8 channels |
| 电源电压 | 1.6 V to 3.6 V |
| 封装 | 32-pin TQFP, 7 mm x 7 mm |
| 安装类型 | Surface mount |
| Maximum Listed Temperature | 105 °C |
| Environmental Designation | Green |
| Processor Architecture | AVR enhanced RISC architecture |
| Interrupt System | Programmable multi-level interrupt handling |
| 接口类型 | 8/16-bit |
ATXMEGA32E5-AN 32-pin tqfp, 7 mm x 7 mm 引脚配置指南
ATXMEGA32E5-AN（32-pin tqfp, 7 mm x 7 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： ATXMEGA32E5-AN.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATXMEGA32E5-AN 适用于 6 应用s: Compact Industrial Control Module, Connected Sensor Node, Data Acquisition and Monitoring Unit, Building Access and Security Control, Communication and Protocol Controller, Low-Power Embedded Appliance Controller.
Compact Industrial Control Module
The ATXMEGA32E5-AN fits compact machine-control modules that require deterministic event handling without a large processor. Its eight-channel event system can route peripheral events through dedicated hardware, reducing the need for continuous polling, while the 32 MHz clock provides additional instruction throughput. The 32 KB Flash stores application logic, the 4 KB SRAM supports working buffers, and the 1 KB EEPROM retains calibration or configuration values. A practical design places the MCU beside a regulated 3.3 V supply and uses the 4 KB boot section for field-update code. The primary trade-off is that the small memory budget requires disciplined peripheral selection and firmware sizing.
推荐
Connected Sensor Node
ATXMEGA32E5-AN is suitable for a compact sensor node that gathers measurements and communicates them through a serial link. Its 1.6 V to 3.6 V operating range supports low-voltage system rails, while the 32 KB Flash and 4 KB SRAM provide room for acquisition logic and short data buffers. The 1 KB EEPROM is useful for calibration constants, station identifiers, or counters that must survive a reset. An implementation can use the event system to trigger timed acquisition and reduce processor involvement. Compared with a high-pin-count MCU, the 32-pin TQFP simplifies routing, although engineers must verify the exact peripheral mappings and pin multiplexing in the family data sheet.
推荐
Data Acquisition and Monitoring Unit
The ATXMEGA32E5-AN can serve as the control center for a compact data-acquisition system that combines periodic measurements with local configuration. Read-while-write Flash support allows firmware and data workflows to be managed in the same MCU family, and the 4 KB boot section provides a logical location for an update bootloader. The 32 MHz processing rate and eight-channel event system are useful when acquisition timing must be coordinated with timers or external events. Designers can retain setup values in the 1 KB EEPROM while using SRAM for active samples. The principal constraint is capacity: exceeding 32 KB of Flash requires code reduction or a different MCU because this part has no verified external-memory interface.
推荐
Building Access and Security Control
ATXMEGA32E5-AN is appropriate for building-access controllers that coordinate credential inputs, indicators, locks, and communication. Its integrated EEPROM can store device parameters or credential-related identifiers, while the 4 KB boot section can support controlled firmware updates. The 32-pin TQFP package provides a compact footprint for equipment panels, and the event system can help coordinate multiple digital events without tying up the processor. A security-focused implementation must still enforce external access controls and update-authentication measures at the system level. Compared with a higher-pin-count MCU, the ATXMEGA32E5-AN reduces board area, but the 32 KB Flash limit should be checked against protocol libraries and logging requirements.
推荐
Communication and Protocol Controller
ATXMEGA32E5-AN can be used as a dedicated protocol controller when a host processor must delegate serial communication, framing, or event-driven control. Its 32 MHz operating speed supports responsive protocol handling, and the 32 KB Flash is sufficient for many compact stacks while the 4 KB SRAM provides transmit and receive working space. The eight-channel event system can connect communication events with timers and control outputs. For a practical design, UART, SPI, or other interface assignments must be checked against the actual 32-pin package drawing and any simultaneous peripheral constraints. The main advantage over a small 8-bit MCU is additional code and buffering capacity; the main limitation is that complex networking stacks may exceed the available 32 KB.
推荐
Low-Power Embedded Appliance Controller
The ATXMEGA32E5-AN can serve as the central controller in a low-power appliance or embedded product requiring local logic and nonvolatile configuration. Its low-power 8/16-bit AVR XMEGA architecture and 1.6 V to 3.6 V supply range suit systems that cannot continuously operate a high-performance processor. The 32 KB Flash stores control software, the 4 KB SRAM supports working state, and the 1 KB EEPROM preserves setup values across power cycles. Sleep behavior, peripheral clocks, and wake-up sources must be configured according to the Microchip family data sheet. Compared with a larger 32-bit MCU, the part can reduce system complexity and processing overhead, although firmware timing and interrupt latency should be measured against the application workload.
推荐
推荐产品汇总
工程参考数据： ATXMEGA32E5-AN ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATXMEGA32E5-AU | ATXMEGA16E5-AN | ATXMEGA16E5-AU | ATXMEGA8E5-AN | ATXMEGA8E5-AU |
|---|---|---|---|---|---|---|
| Package | 32-TQFP (7x7 mm) | 32-TQFP (7x7 mm) | 32-TQFP (7x7 mm) | 32-TQFP (7x7 mm) | 32-TQFP (7x7 mm) | 32-TQFP (7x7 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 32 KB | 32 KB | 16 KB | 16 KB | 8 KB | 8 KB |
关键差异点
- Largest verified Flash capacity in the listed E5 alternatives （对比 ATXMEGA8E5-AN)
- Twice the Flash of the 16E5 alternatives （对比 ATXMEGA16E5-AN)
- Verified 105 °C listing （对比 ATXMEGA32E5-AU)
设计说明
Use the 32-pin TQFP land pattern from the Microchip package drawing and preserve all 32 connections even when the selected E5 family member has fewer internal resources. Keep the 3.3 V supply path short, provide local bypass capacitance at the supply pins, and route high-current or noisy digital activity away from sensitive analog inputs. The QFN-ordered ATXMEGA32E5 variants are not footprint substitutes for this TQFP design.
Design the supply for the verified 1.6 V to 3.6 V device range, including startup, transient, and brownout behavior required by the system. Because a 32 MHz core and mixed peripherals can create variable current demand, use local bulk and high-frequency decoupling and verify the regulator's control-loop response. Check every peripheral's voltage tolerance before connecting a 5 V signal to an I/O pin.
Do not treat memory-capacity variants as unconditional firmware drop-ins. Moving from ATXMEGA32E5-AN to an 8E5 or 16E5 member reduces Flash by 75% or 50%, respectively, and can also reduce SRAM and EEPROM. Review linker maps, bootloader assumptions, interrupt vectors, register definitions, and peripheral availability. Confirm the exact ordering code, package drawing, temperature grade, and supply requirements before releasing a substitute to production.
Plan the 4 KB boot-code section deliberately if field updates are required. Keep the boot procedure separate from application assumptions, reserve the required Flash region, and validate recovery if an update is interrupted. Read-while-write capability can improve firmware-update flexibility, but it does not remove the need for application-level integrity checks, version control, and a controlled boot-state mechanism.
合规信息
The verified Mouser listing identifies the device as green, but the supplied data does not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Those fields remain unknown rather than being inferred.
