ATXMEGA32A4-CU - 32MHz 32KB AVR Microcontroller | Microchip
부품 번호: ATXMEGA32A4-CU ✓ 활성ATXMEGA32A4-CU 개요
An 8/16-bit microcontroller is a programmable semiconductor that executes firmware, reads sensor inputs, controls actuators, and manages communications in an embedded system. The ATxmega family belongs to the broader hierarchy of microcontrollers, embedded processors, and semiconductor components. Unlike a general-purpose application processor, this device emphasizes deterministic peripheral operation, event handling, direct memory access, and low-power embedded control while retaining familiar AVR software development.
The ATXMEGA32A4-CU provides 32 KB of self-programming Flash program memory, including a 4 KB boot-code section, together with 4 KB SRAM and 1 KB EEPROM. Its integrated peripherals include a four-channel DMA controller, an eight-channel event system, an external bus interface, and communication resources listed for the family as five USARTs and two Two-Wire Interfaces. The 34 I/O pins provide connections for sensors, actuators, human-interface inputs, and external buses.
The XMEGA architecture uses an event system to connect peripherals without requiring continuous CPU polling. This can reduce software overhead in designs that must respond to timer, communication, or external-signal events. The four-channel DMA controller is useful for transferring data between memory and peripherals, while self-programming Flash supports firmware maintenance and bootloader-based updates. Operating at 32 MHz provides additional processing headroom for protocol handling and control-loop calculations.
Typical uses include industrial automation modules, compact sensor nodes, data-logging instruments, communication equipment, and low-power embedded controllers. Its 49-VFBGA package is particularly appropriate for space-constrained products where a reduced package area is valuable. Board assembly requires suitable BGA manufacturing and inspection capability, so designers must account for package geometry, solder-mask design, thermal management, and assembly yield during volume production.
A key design consideration is that the small 5 x 5 mm BGA is not a simple through-hole or two-row-package substitution. Existing PCB layouts must match the exact 49-ball footprint, ball assignments, exposed-pad requirements, and manufacturer land pattern. Firmware should also be validated at the intended 1.6 V to 3.6 V supply conditions because timing and peripheral performance can vary with voltage and frequency.
This page combines verified manufacturer and distributor specifications with package, sourcing, application, and replacement guidance. It also distinguishes genuine same-footprint alternatives from related XMEGA devices that have different memory sizes or order codes, helping engineers avoid treating functional similarity as drop-in compatibility.
드롭인 대체품: ATXMEGA32A4-CU — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
ATXMEGA16A4U-CU
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ATXMEGA32A4-MU
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ATXMEGA32A4-CCUR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ATXMEGA32A4-CU 최대 정격 & 전기적 특성
| Product Type | 8/16-bit AVR XMEGA A4 microcontroller (unitless classification) |
| Maximum CPU Frequency | 32 MHz |
| Flash Program Memory | 32 KB (16K x 16) |
| Self-Programming Flash | 32 KB |
| Boot Code Section | 4 KB |
| SRAM | 4 KB |
| EEPROM | 1 KB |
| 동작 공급 전압 | 1.6 V to 3.6 V |
| I/O Pin Count | 34 pins |
| DMA Channels | 4 channels |
| Event System Channels | 8 channels |
| USART Count | 5 serial interfaces |
| Two-Wire Interface Count | 2 interfaces |
| External Bus Interface | 1 interface |
| 패키지 | 49-VFBGA, 5 x 5 mm |
| 실장 유형 | Surface mount (49-ball package) |
| Core Architecture | AVR 8/16-bit RISC processor |
| Lifecycle Stage | Active (unitless status) |
ATXMEGA32A4-CU 49-vfbga, 5 x 5 mm 핀 구성 가이드
ATXMEGA32A4-CU(49-vfbga, 5 x 5 mm 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: ATXMEGA32A4-CU.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ATXMEGA32A4-CU 적합 용도: 6 애플리케이션s: Industrial Sensor and Control Module, Low-Power Data Logger, Multi-Protocol Communications Gateway, Precision Measurement Instrument, Automated Test and Control Equipment, Space-Constrained Embedded Controller.
Industrial Sensor and Control Module
The ATXMEGA32A4-CU fits compact sensor-and-control modules because its 32 MHz 8/16-bit AVR core provides processing headroom while 34 I/O pins support discrete inputs, outputs, and mixed signal interfaces. The four-channel DMA controller can move sampled data without repeated CPU transactions, and the eight-channel event system helps connect timers, communication events, and external signals. With 32 KB of Flash, 4 KB of SRAM, and 1 KB of EEPROM, it can hold application firmware, calibration data, and communication routines. The 49-VFBGA package also reduces board area, although industrial temperature, EMC, and isolation requirements must be verified separately.
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Low-Power Data Logger
The ATXMEGA32A4-CU is suitable for a low-power data logger that records sensor information and periodically transfers it over a serial link. Its 32 KB self-programming Flash provides room for firmware and logging routines, while 1 KB of EEPROM can retain configuration or calibration values between resets. The event system allows timer and communication activity to wake internal workflows, and DMA can transfer blocks with less CPU intervention. At the 1.6 V to 3.6 V operating range, it accommodates compact battery-derived rails, although final battery-life calculations require the verified sleep currents and application duty cycle.
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Multi-Protocol Communications Gateway
The ATXMEGA32A4-CU can serve as a compact communications gateway because the XMEGA A4 family integrates five USARTs and two Two-Wire Interfaces alongside a 32 MHz AVR core. This combination supports simultaneous sensor, service-port, and expansion-bus traffic without requiring several discrete interface devices. Its event system can route communication and timer signals efficiently, while four DMA channels help move data between memory and peripherals. The 32 KB Flash footprint is useful for protocol stacks and gateway logic, although the exact peripheral multiplexing, pin assignment, and electrical limits must be checked against the manufacturer datasheet for every implemented interface.
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Precision Measurement Instrument
The ATXMEGA32A4-CU is appropriate for compact measurement instruments that must coordinate sensors, control outputs, and maintain a user interface. Its 32 MHz core supports timing and control calculations, while the eight-channel event system can connect comparator, timer, and communication events with limited polling. Four DMA channels and 32 KB of Flash are useful for acquisition buffers and moderately complex control code. The 1.6 V to 3.6 V supply range supports low-voltage analog systems, but engineers should confirm ADC-related data, reference characteristics, measurement accuracy, and calibration requirements directly in the complete ATxmega datasheet.
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Automated Test and Control Equipment
The ATXMEGA32A4-CU can support automated test equipment by coordinating test sequences, relay or indicator outputs, and external instruments through its serial interfaces. A 32 MHz processing rate provides useful responsiveness for protocol parsing and test sequencing, while the four-channel DMA controller assists with moving sampled or buffered data. The 34 available I/O pins reduce the need for external I/O expanders in small systems. Its active lifecycle status and distributor availability make it a candidate for ongoing equipment builds, but production designs should still verify calibration, temperature, RoHS, and REACH documentation for the exact orderable MPN.
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Space-Constrained Embedded Controller
The ATXMEGA32A4-CU is well suited to space-constrained embedded controllers because it combines 32 I/O-capable pins and substantial memory in a 5 x 5 mm 49-VFBGA. The package can reduce board area compared with leaded or larger fine-pitch alternatives, making it useful in compact instruments and connected modules. Its event system and DMA controller add functionality without requiring a larger processor, and the 32 MHz core supports real-time control tasks. The tradeoff is assembly complexity: PCB designers must follow the exact BGA land pattern, and production teams need compatible solder-paste, inspection, and rework capabilities.
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추천 제품 요약
엔지니어링 참조 데이터: ATXMEGA32A4-CU — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ATXMEGA16A4U-CU | ATXMEGA32A4-MU | ATXMEGA32A4-CCUR |
|---|---|---|---|---|
| Package | 49-VFBGA (5x5) | 49-VFBGA (5x5) - same | 49-VFBGA (5x5) - same | 49-VFBGA (5x5) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | AVR 8/16-bit RISC | AVR 8/16-bit RISC | AVR 8/16-bit RISC | AVR 8/16-bit RISC |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 32 KB | 16 KB (-50%) | 32 KB | 32 KB |
주요 차별점
- Double the Flash capacity of the related 49-VFBGA XMEGA option (vs ATXMEGA16A4U-CU)
- Multi-peripheral integration without a larger external interface controller (vs ATXMEGA16A4U-CU)
- Active 32 MHz device with established distributor sourcing (vs ATXMEGA32A4-MU)
- Broader documented low-voltage operation than the 1.8 V minimum comparison entry (vs ATXMEGA16A4U-CU)
설계 노트
Use the manufacturer's 49-VFBGA land pattern and ball map rather than adapting a generic BGA footprint. Confirm pad dimensions, solder-mask definitions, ball numbering, paste stencil apertures, and whether the package includes an exposed thermal pad. The verified source identifies a 5 x 5 mm package but does not provide the complete ball table, so the official ATxmega32A4 package drawing must control the PCB layout.
Do not treat any same-family XMEGA device as automatically interchangeable. ATXMEGA16A4U-CU is listed in a 49-VFBGA package but provides 16 KB of Flash instead of 32 KB, and the other candidate order codes must be checked for qualification, temperature grade, and packing differences. Validate pin multiplexing, peripheral availability, voltage limits, clock configuration, and boot behavior before releasing a substitution to production.
Design the 1.6 V to 3.6 V supply rail with local decoupling close to the device and verify startup behavior across the intended voltage range. The supplied data does not include recommended capacitor values, quiescent current, or current limits, so those values must be taken from the manufacturer datasheet. Avoid deriving power-budget margins from generic AVR devices because the XMEGA clock tree and peripheral configuration determine actual consumption.
Evaluate thermal performance using the manufacturer's recommended PCB copper and the package thermal data. The 5 x 5 mm VFBGA can couple heat through its ball array and any exposed pad, but the verified web data does not provide junction temperature, thermal resistance, or maximum power values. Do not extrapolate thermal ratings from another package; obtain the exact package data and apply the manufacturer PCB assumptions before calculating junction rise.
Assign communication, event-system, DMA, and general-purpose I/O functions during schematic definition because XMEGA peripherals can use alternate pins. Keep sensitive analog and high-speed signals away from switching nodes, and reserve clean grounding around the MCU. Although the verified data confirms DMA, event-system, USART, and Two-Wire Interface resources, it does not provide the complete peripheral multiplexing matrix; use the official pin table for every board variant.
규정 준수 정보
The supplied web results do not explicitly provide RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations for the exact ATXMEGA32A4-CU orderable MPN. AEC-Q100 is marked not applicable because no automotive qualification statement was provided.
