CY8C3866AXA-035 - 67MHz 8051 MCU, 64KB Flash | Infineon
部品番号: CY8C3866AXA-035 ✓ 生産中CY8C3866AXA-035 概要
A PSoC, or programmable system-on-chip, combines a microcontroller core with configurable analog and digital blocks. Within the product hierarchy, the CY8C3866AXA-035 belongs to the PSoC 3 CY8C38xx family, combines an 8051-compatible MCU with programmable resources, and ultimately serves as a mixed-signal embedded-control IC. This integration allows designers to implement sensing, control, and communications functions on one device rather than using separate analog and digital components.
The principal operating characteristics include an 8-bit 8051 instruction set, operation up to 67 MHz, and 64 KB of embedded flash organized as 64K by 8 bits. The device includes 8 KB of SRAM and accepts a supply range spanning 0.5 V to 5.5 V according to the product listing. Its 100-TQFP package provides a high pin count suitable for designs requiring numerous external peripheral connections.
The CY8C38xx architecture is particularly useful when an application must combine deterministic control with programmable signal conditioning. Programmable analog and digital blocks can replace fixed-function glue logic, while the 8051-compatible core handles firmware, state machines, and communications. Designers should still verify startup behavior, clock limits, and peripheral availability for the specific device variant before finalizing a board.
Typical applications include automotive body and comfort controllers, industrial monitoring equipment, sensor-interface systems, motor and actuator controllers, and compact embedded products that need both digital processing and programmable analog functions. The 67 MHz operating rate supports responsive control tasks while the 64 KB flash capacity accommodates application firmware and configuration data.
For PCB implementation, use the 100-pin TQFP footprint and follow the manufacturer pin-description table when assigning power, ground, clock, programming, and peripheral signals. Pay particular attention to decoupling, exposed routing requirements, and startup configuration. Firmware development should use the programming tools and PSoC Creator workflow supported by the CY8C38xx family.
This product page combines the device identity, memory organization, package details, verified drop-in family variants, application guidance, and engineering design notes in a searchable format. It helps engineers compare configuration options while retaining the exact 100-pin footprint and 8051-based architecture needed for targeted redesigns.
ドロップイン代替品: CY8C3866AXA-035 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: CY8C3866AXA-035 （同一形状・フットプリント）.
CY8C3866AXA-025
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CY8C3866AXA-045
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CY8C3866AXA-055
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CY8C3866AXA-065
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CY8C3866AXI-035
✅ ドロップイン価格はお問い合わせください
データシートを見る →CY8C3866AXA-035 最大定格＆電気的特性
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CY8C3866AXA-035 standard ピン配置ガイド
CY8C3866AXA-035 (standard パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: CY8C3866AXA-035.
詳細は データシート をご参照ください。
主な用途
CY8C3866AXA-035 の用途: 6 件s: Automotive Body Control, Industrial Sensor Interface, Motor and Actuator Control, Connected Monitoring Equipment, Consumer Accessory Controller, Programmable Logic Controller.
Automotive Body Control
The CY8C3866AXA-035 fits automotive body-control modules that combine switch inputs, actuator outputs, diagnostics, and communication tasks in one controller. Its 67 MHz 8051-compatible core supports responsive state-machine execution, while 64 KB of flash stores application code and 8 KB of SRAM provides working memory for control logic. The AEC-Q100 identification supports automotive design review, provided the exact temperature grade and suffix meet the vehicle specification. Keep sensitive analog routing separate from switching nodes and follow the manufacturer grounding and decoupling guidance.
おすすめ
Industrial Sensor Interface
The CY8C3866AXA-035 is suitable for industrial sensor-interface modules that require programmable signal conditioning, digital acquisition, and local control in a compact 14 mm by 14 mm package. The 8051-compatible core can execute calibration, filtering, threshold, and fault-handling routines, while the PSoC 3 programmable resources reduce the need for separate fixed-function components. With 64 KB flash and 8 KB SRAM, it accommodates embedded firmware and working buffers. Validate input limits, isolation, grounding, and thermal performance for the installed enclosure.
おすすめ
Motor and Actuator Control
The CY8C3866AXA-035 can serve as the supervisory controller in compact motor, valve, and actuator assemblies where deterministic embedded logic is needed alongside programmable signal handling. Its 67 MHz clock supports responsive control tasks, and its 64 KB flash and 8 KB SRAM are appropriate for sequence management, diagnostics, and parameter storage. The 100-pin TQFP provides dedicated connections for sensing and control signals. Place power-stage switching devices away from precision analog traces, and verify startup, fault shutdown, and electromagnetic-compatibility behavior on the final board.
おすすめ
Connected Monitoring Equipment
The CY8C3866AXA-035 works in compact network-connected monitors that combine local sensing, threshold evaluation, logging, and communications. Its 8-bit 8051-compatible processor can manage protocol tasks and control sequences, while the PSoC programmable resources support signal conditioning close to the sensor interface. The 64 KB flash capacity supports firmware updates and configuration data, and 8 KB of SRAM accommodates communication and measurement buffers. Use an isolated communications interface when the system connects to long cables or high-energy industrial equipment.
おすすめ
Consumer Accessory Controller
The CY8C3866AXA-035 can implement a compact accessory controller for products combining capacitive or analog sensing, LED indication, user input, and a serial communications link. The 67 MHz core provides enough execution speed for responsive interaction and timing, while the 64 KB flash and 8 KB SRAM support embedded features without an external memory device. Its 100-pin TQFP package simplifies connection to multiple sensors and indicators. Confirm the consumer-market qualification status and operating-temperature requirements before using this automotive-identified ordering option.
おすすめ
Programmable Logic Controller
The CY8C3866AXA-035 is appropriate for compact PLC and equipment-controller modules that execute deterministic logic, supervise discrete inputs, and drive outputs. The 8051-compatible architecture and 67 MHz maximum clock support responsive task execution, while 64 KB of flash and 8 KB of SRAM provide practical capacity for control logic and diagnostics. The PSoC 3 architecture allows configurable digital and analog resources to replace some discrete interface circuitry. Verify watchdog behavior, safe-state outputs, startup sequencing, and electromagnetic compliance before using the controller in industrial machinery.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: CY8C3866AXA-035 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | CY8C3866AXA-025 | CY8C3866AXA-045 | CY8C3866AXA-055 | CY8C3866AXA-065 | CY8C3866AXI-035 |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | 100-TQFP (14x14) | 100-TQFP (14x14) | 100-TQFP (14x14) | 100-TQFP (14x14) | 100-TQFP (14x14) | 100-TQFP (14x14) |
| CPU Core | 8-bit 8051-compatible | 8-bit 8051-compatible | 8-bit 8051-compatible | 8-bit 8051-compatible | 8-bit 8051-compatible | 8-bit 8051-compatible |
| Ordering Grade | AXA | AXA | AXA | AXA | AXA | AXI |
主な差別化要因
- Automotive-qualified ordering option （vs CY8C3866AXI-035)
- 67 MHz clock with 64 KB flash and 8 KB SRAM （vs CY8C3866AXI-035)
- Single-package programmable control and signal handling （vs C8051F012R)
設計ノート
Route the 3.3 V or other selected operating rail directly to the device power pins and place local bypass capacitors immediately adjacent to those pins and their ground references. Although the listed operating range reaches 0.5 V to 5.5 V, the usable core and peripheral range must be checked against the selected configuration. Use a controlled startup profile and verify brownout, reset, and power-sequencing behavior against the system requirements before attaching external loads.
Implement the 100-pin TQFP land pattern using the exact package drawing rather than a generic 100-pin library footprint. Keep the clock path short, preserve continuous ground references beneath the device where the package construction permits, and separate sensitive analog inputs from switching or high-current outputs. Assign pins only from the manufacturer pin-description table so that programming signals, power rails, ground pins, and peripheral functions remain consistent with the selected ordering code.
Do not assume that every CY8C3866 suffix is interchangeable merely because the package matches. Confirm the maximum clock, temperature grade, qualification status, supply configuration, and production packing before substitution. Programmable PSoC peripherals can also change pin routing and internal clock behavior, so compare the complete device configuration, not only the basic 8051 core and memory capacity. Revalidate timing and peripheral mappings after changing the speed suffix.
コンプライアンス情報
The product documentation identifies the AXA-035 as an automotive AEC-Q100 device. RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations must be confirmed for the exact ordering code.
