Infineon

CY8C3866AXA-038 - 8-Bit 67MHz 64KB Flash MCU | Infineon Technologies

부품 번호: CY8C3866AXA-038 ✓ 활성
100-TQFP (14 x 14 mm) Package 67 MHz Speed 64 KB (64K x 8) Memory
MOQ: 1 |

CY8C3866AXA-038 개요

The Infineon Technologies CY8C3866AXA-038 is an 8-bit PSoC 3 CY8C38xx microcontroller featuring a 67 MHz processor, 64 KB flash memory, and a 100-pin TQFP/LQFP package. It belongs to the programmable embedded system-on-chip family, combining a microcontroller core with configurable digital and analog peripherals in one integrated device. The device is identified as an 8051-based microcontroller in distributor and manufacturer-related product listings, making it suitable for embedded control designs requiring programmable logic, mixed-signal peripherals, and flexible peripheral configuration.

A PSoC 3, or programmable system-on-chip, is a microcontroller platform that combines a CPU core with configurable analog and digital blocks rather than relying only on fixed peripheral functions. This architecture allows engineers to route signals, configure timers, control analog functions, and implement application-specific peripheral behavior through programmable logic and software-defined resources. The CY8C38xx family is designed for embedded control, sensing, communications, and industrial interface applications where a combination of deterministic control and adaptable peripherals is useful.

The CY8C3866AXA-038 provides 64 KB of flash memory and operates at up to 67 MHz according to its product listing. Its 100-terminal package supports a substantially larger pin count than smaller microcontroller packages, providing access to the device's digital and analog resources. The listed 14 x 14 mm package format is identified as 100-TQFP by one distributor and LQFP-100 by another listing, so the package drawing and land pattern should be confirmed against the mechanical drawing in the manufacturer documentation before PCB release.

Typical applications for the CY8C3866AXA-038 include industrial control panels, sensor-conditioning systems, motor and actuator controllers, communications equipment, and consumer products with configurable mixed-signal interfaces. The 8051-based architecture and programmable peripheral resources make the device especially relevant to designs that benefit from flexible pin multiplexing and configurable analog or digital blocks rather than a fixed application-specific controller.

The principal design consideration is package and pin verification. Because this MPN is offered in a 100-pin package, the PCB footprint, exposed pad or thermal requirements if applicable, and every peripheral signal assignment must be checked against the correct mechanical and pinout documentation. Firmware configuration should also be reviewed before production because programmable PSoC resources can change signal routing and timing behavior between applications.

드롭인 대체품: CY8C3866AXA-038 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: CY8C3866AXA-038 (동일 폼 팩터 및 풋프린트) — 차이점: Package, Product Family, Product Type.

Infineon
Package: 100-pin TQFP (14 mm x 14 mm)
Product Family: PSoC 3 CY8C36xx
Product Type: 8-bit 8051 microcontroller
비교 대상: CY8C3866AXA-038 →

CY8C3666AXI-036

✅ 드롭인
📦 100-LQFP
Lower CY8C36xx-family resource level is indicated; exact flash, peripheral, clock, and temperature differences require manufacturer comparison before release.

📋 참조 대체품 (카탈로그에 없음)

CY8C3846AXE-176

✅ 드롭인
📦 100-LQFP
Different CY8C38xx-family suffix and feature configuration; the listing does not quantify flash, peripheral, or timing differences.

📋 참조 대체품 (카탈로그에 없음)

CY8C3646AXE-178

✅ 드롭인
Infineon
📦 100-LQFP
8-bit 8051 microcontroller · PSoC 3 CY8C36xx · 8051 · 48 MHz · 64 KB (64K x 8) · 0.5 V to 5.5 V · 3.3 V and 5 V · 8 bit

가격 문의

데이터시트 보기 →

CY8C3866AXA-038 최대 정격 & 전기적 특성

Product Type 8-bit PSoC 3 CY8C38xx microcontroller
Processor Architecture 8051
최대 클록 주파수 67 MHz
Flash Memory 64 KB (64K x 8)
Number of Terminals 100 terminals
패키지 100-TQFP (14 x 14 mm)
Package Type Gull-wing, square QFP
실장 유형 Surface mount
Product Family PSoC 3 CY8C38xx
Core Architecture 8-bit 8051
Programmable Resources Configurable digital and analog peripherals

CY8C3866AXA-038 gull-wing, square qfp 핀 구성 가이드

CY8C3866AXA-038(gull-wing, square qfp 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.

CY8C3866AXA-038의 gull-wing, square qfp 패키지 핀아웃 다이어그램

다음에 대한 상세 핀아웃 데이터 없음: CY8C3866AXA-038.

다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.

일반적인 애플리케이션

CY8C3866AXA-038 적합 용도: 6 애플리케이션s: Industrial Control Panel, Sensor Conditioning System, Communication Interface Controller, Motor and Actuator Control, Security and Access Controller, Data Acquisition Front End.

🏭

Industrial Control Panel

The Infineon Technologies CY8C3866AXA-038 fits industrial control-panel designs that require deterministic 8-bit control logic plus adaptable mixed-signal resources. Its 8051 core operates up to 67 MHz and provides 64 KB of flash for control firmware, while the PSoC 3 programmable architecture can support application-specific digital routing and analog functions. The 100-terminal package is useful when the design must expose numerous control, sensing, and communication signals. Before schematic release, verify the device's supply range, temperature grade, and the exact functions assigned to each programmable resource.

🧩

Sensor Conditioning System

The CY8C3866AXA-038 is appropriate for sensor-conditioning systems where analog measurement paths and digital processing must share a programmable platform. Its configurable digital and analog peripheral blocks can be organized around the selected sensor interface, while the 8-bit 8051 core running at up to 67 MHz supports filtering, calibration, and system supervision. The 100-terminal package offers more routing options than a small microcontroller package. Engineers should confirm converter performance, pin assignments, and available peripheral resources in the device documentation rather than assuming every peripheral configuration is interchangeable.

🌐

Communication Interface Controller

The CY8C3866AXA-038 can serve as the central controller in a communications interface that combines protocol handling, status monitoring, and configurable signal routing. Its 64 KB flash supports embedded protocol and application firmware, and the 67 MHz clock provides processing headroom for packet handling and peripheral coordination. The 100-terminal package is advantageous when a design needs multiple logic signals and interface connections. Validate the required UART, SPI, or other interface resources, interrupt behavior, and pin multiplexing in the final device configuration before production.

🔧

Motor and Actuator Control

The Infineon PSoC 3 CY8C3866AXA-038 is suitable for actuator and motor supervisory control where an 8-bit controller must coordinate timing, digital I/O, and configurable peripheral functions. The 67 MHz core can execute control and status algorithms, while 64 KB of flash accommodates application firmware and configuration data. Its 100-terminal package provides access to numerous signals for position sensing, limit detection, and driver control. The MCU does not directly replace a power MOSFET or gate driver, so a suitable driver stage and protection network must be selected separately.

🔐

Security and Access Controller

The CY8C3866AXA-038 can be used in access-control and security equipment that combines local decision logic with configurable input handling. Its 8-bit 8051 architecture and 64 KB of flash support embedded control software, and the PSoC 3 resources can be assigned to the specific digital and analog functions required by the product. A 100-terminal package also accommodates keypad, indicator, sensor, and communications connections. For production equipment, review memory protection, peripheral security features, operating limits, and any application-specific certification requirements in the manufacturer documentation.

📈

Data Acquisition Front End

The CY8C3866AXA-038 is a logical control device for compact data-acquisition equipment that needs configurable signal conditioning and local processing. The 67 MHz 8051 core can coordinate sampling sequences, apply calibration, and format results for transmission, while the PSoC 3 architecture supports flexible digital and analog peripheral assignment. Its 100-terminal package provides more I/O capacity for transducers and status signals than a smaller controller. Confirm the available ADC or comparator resources, measurement accuracy, reference requirements, and timing limits before assigning analog functions.

What is the CY8C3866AXA-038?
The CY8C3866AXA-038 is an Infineon Technologies 8-bit PSoC 3 CY8C38xx microcontroller with an 8051 core, a maximum clock frequency of 67 MHz, and 64 KB of flash memory. It is packaged in a 100-TQFP/LQFP-style 14 x 14 mm surface-mount package. According to the manufacturer product information, the CY8C38xx architecture combines a microcontroller core with configurable digital and analog peripherals, making it useful for embedded control, sensing, and communications designs.
What is the operating voltage of CY8C3866AXA-038?
The operating voltage range of the CY8C3866AXA-038 is not stated in the available product listings, so use the manufacturer datasheet and device documentation to confirm the supported supply range before design release. The device is listed as an 8051 PSoC 3 CY8C38xx microcontroller with 64 KB flash and a 67 MHz clock. Confirming the voltage range is particularly important when designing external sensor interfaces, communication transceivers, and programmable analog blocks.
What is the package and pin count of CY8C3866AXA-038?
The CY8C3866AXA-038 is listed in a 100-terminal 14 x 14 mm package, identified as 100-TQFP by one distributor and LQFP-100 by another. Its 100 gull-wing terminals provide access to the device's extensive digital and analog resources. Because the package naming differs across listings, confirm the exact package drawing, terminal numbering, and PCB land pattern against the manufacturer mechanical documentation before fabrication.
Where can I download the CY8C3866AXA-038 datasheet PDF?
The CY8C3866AXA-038 datasheet PDF can be accessed through the Infineon/Cypress Semiconductor product-documentation link listed on the manufacturer-related datasheet page. The available listing identifies the device as part of the PSoC 5LP documentation family and links to the CY8C3866AXA datasheet material. Confirm the document revision and package-specific pin table before using the PDF for layout or firmware configuration.
Where can I find the CY8C3866AXA-038 pinout?
The CY8C3866AXA-038 pinout is found in the pin description table of the manufacturer datasheet for the 100-terminal package. The component has 100 terminals, so use the numbered 14 x 14 mm gull-wing package drawing rather than a generic QFP outline. Verify pin 1 orientation, every port and power connection, and the assignments of programmable analog and digital resources before routing the PCB.
What are the key specifications engineers should know about CY8C3866AXA-038?
The key specifications of the CY8C3866AXA-038 are its 8-bit 8051 core, 67 MHz maximum clock frequency, 64 KB flash memory, configurable digital and analog peripherals, and 100-terminal 14 x 14 mm package. The product belongs to Infineon's PSoC 3 CY8C38xx family. These specifications make it suitable for applications needing adaptable mixed-signal resources and flexible peripheral routing, subject to the device's detailed electrical and timing limits.
Is CY8C3866AXA-038 the same as CY8C3866AXI-038?
The CY8C3866AXA-038 and CY8C3866AXI-038 appear in listings with the same CY8C38xx family, 8-bit 8051 core, 64 KB flash, and 67 MHz clock. They should not be treated as identical solely from those summaries because the orderable suffix can encode package, temperature, and other qualification information. Check the full ordering table, pin compatibility, temperature grade, and lifecycle details before substituting one for the other.
Can CY8C3866AXA-038 be used for industrial control systems?
The CY8C3866AXA-038 is suitable for many industrial control and embedded interface applications because it combines an 8-bit 8051 core with configurable digital and analog peripherals. The 67 MHz clock and 64 KB flash provide resources for control logic, signal routing, and peripheral configuration. Confirm the operating temperature range, supply limits, and applicable industrial qualification requirements in the manufacturer documentation before deploying it in a production environment.
When should I choose CY8C3866AXA-038 over a smaller 8-bit MCU?
Choose CY8C3866AXA-038 when the design benefits from the PSoC 3 CY8C38xx family's configurable analog and digital resources, a 100-terminal package, and up to 67 MHz processing. A smaller 8-bit MCU may be preferable for simple control loops with fewer pins and lower complexity. The decision should be based on the required peripheral count, analog functions, pin multiplexing, memory, and PCB space rather than clock speed alone.
What is the best drop-in replacement for CY8C3866AXA-038?
The closest documented alternatives are the CY8C3666AXI-036, CY8C3846AXE-176, and CY8C3646AXE-178, each appearing in a direct comparison with the CY8C3866AXA-038. Their exact package and pin compatibility require confirmation from the manufacturer ordering information. Do not authorize a drop-in replacement solely because a comparison page lists the parts together; verify footprint, clock, memory, peripheral resources, voltage, temperature, and qualification.
Can CY8C3666AXI-036 replace CY8C3866AXA-038?
The CY8C3666AXI-036 is a documented comparison candidate for the CY8C3866AXA-038, but the available comparison result does not establish complete pin-to-pin interchangeability. Treat it as a candidate requiring engineering review, not a confirmed drop-in substitute. Compare the 100-terminal footprint, 8051 core, memory configuration, peripheral resources, supply range, clock behavior, and package dimensions before approving it for an existing PCB.
What is the difference between CY8C3866AXA-038 and CY8C3846AXE-176?
The CY8C3866AXA-038 and CY8C3846AXE-176 are separate CY8C38xx-family devices shown together in a detailed comparison. The target is identified as an 8-bit 8051 PSoC 3 with 64 KB flash and 67 MHz operation, while the comparison snippet does not provide the complete parameter differences. Review the manufacturer datasheets and part suffixes to identify differences in memory, peripherals, package, temperature, and qualification.
Where can I buy CY8C3866AXA-038 online?
Purchase CY8C3866AXA-038 through the Request a Quote form on this product page, where the exact suffix, quantity, packaging, and current commercial terms can be reviewed before an order. The manufacturer identifies the part as an Infineon Technologies 8-bit PSoC 3 CY8C38xx microcontroller in a 100-terminal 14 x 14 mm package. Current pricing and lead time should be confirmed through the quote request rather than relying on a stale listing.
What is the price of CY8C3866AXA-038?
The current commercial price of CY8C3866AXA-038 depends on order quantity, package form, and current market conditions. Use the Request a Quote form on this page to request current pricing and availability for the exact CY8C3866AXA-038 ordering code. Confirm whether the requested quantity is in reel, tray, or another approved shipping format before accepting the commercial terms.
What is the lead time and stock status of CY8C3866AXA-038?
The CY8C3866AXA-038 stock position and lead time should be confirmed through the Request a Quote form on this page. Product listings indicate that the part is commercially offered, but that fact alone does not establish a current warehouse quantity or a guaranteed delivery date. Include your required quantity, shipment destination, and preferred packaging in the request to obtain an actionable commitment.

엔지니어링 참조 데이터: CY8C3866AXA-038 — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose CY8C3866AXA-038 when a design needs the PSoC 3 CY8C38xx feature level, an 8-bit 8051 core operating up to 67 MHz, 64 KB of flash, and access to configurable digital and analog peripherals through a 100-terminal package. CY8C3846AXE-176 may be considered when its specific resources are a closer match, but its suffix and configuration must be compared against the target. The CY8C3666AXI-036 and CY8C3646AXE-178 belong to the CY8C36xx family and should be evaluated as lower-family candidates rather than automatic replacements. For any migration, verify footprint, memory, peripheral availability, supply range, temperature grade, qualification, and software support. Use a smaller MCU instead when the application needs only basic digital control and cannot justify the 100-terminal package or PSoC configuration effort.

대체품과의 비교

파라미터 이 제품 CY8C3666AXI-036 CY8C3846AXE-176 CY8C3646AXE-178
Package 100-TQFP (14 x 14 mm) 100-LQFP candidate; verify exact mechanical drawing 100-LQFP candidate; verify exact mechanical drawing 100-LQFP candidate; verify exact mechanical drawing
Brand Infineon Technologies Infineon Technologies Infineon Technologies Infineon Technologies
Product Family PSoC 3 CY8C38xx CY8C36xx family CY8C38xx family CY8C36xx family

주요 차별점

  • Higher CY8C38xx family feature level than the listed CY8C36xx candidates (vs CY8C3666AXI-036)
  • Same family level with a different orderable suffix and configuration (vs CY8C3846AXE-176)
  • 100-terminal package provides high signal and peripheral access (vs CY8C3646AXE-178)

설계 노트

Use the 14 x 14 mm 100-terminal gull-wing package drawing as the geometric reference, but verify the exact TQFP or LQFP body, lead span, terminal pitch, and exposed-thermal-pad details against the orderable part's mechanical drawing. Pin 1 orientation and numbering must be checked before footprint creation because PSoC devices can expose power, ground, analog, and programmable digital functions across the package.

Follow the manufacturer guidance for supply pins, decoupling, and power sequencing. Place the required local bypass capacitors close to their designated power pins with short, low-inductance return paths. Since the available listing does not state the supported supply range or capacitor values, obtain those requirements from the device documentation before choosing capacitors or defining the power tree.

Plan the PCB around the PSoC programmable-resource architecture. Reserve the required pins for communication, timing, analog, debug, and configuration functions selected during firmware planning, and avoid assigning a signal to a terminal until its mux and electrical limits are confirmed. Sensitive analog routes should be kept away from fast digital and switching paths, with grounding and return-current paths arranged to minimize coupled noise.

Do not treat the 67 MHz clock as a complete performance specification or assume that all members of the CY8C36xx and CY8C38xx families are interchangeable. Review memory size, peripheral availability, package suffix, temperature grade, voltage range, qualification, and active status for the exact MPN. Also confirm programming and debug requirements before committing to the PCB footprint.

규정 준수 정보

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
무연
Unknown
무할로겐
Unknown
분쟁 광물
Unknown

No specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations are stated in the product listings. Confirm compliance and qualification for the exact ordering code with the manufacturer before production release.

데이터 검증일: 2026-11-03 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

CY8C3866AXA-038 datasheet CY8C3866AXA-038 specifications CY8C3866AXA-038 pinout CY8C3866AXA-038 datasheet pdf CY8C3866AXA-038 equivalent CY8C3866AXA-038 replacement CY8C3866AXA-038 price CY8C3866AXA-038 stock Infineon CY8C3866AXA-038 CY8C3866AXA-038 footprint CY8C3866AXA-038 application circuit CY8C3866AXA-038 vs CY8C3846AXE-176

관련 부품 & 용어

Infineon Technologies CY8C3866AXA-038 CY8C3666AXI-036 CY8C3846AXE-176 CY8C3646AXE-178 PSoC 3 PSoC CY8C38xx microcontroller MCU 8051 8-bit microcontroller embedded system-on-chip programmable system-on-chip configurable digital peripherals configurable analog peripherals 67 MHz 64 KB flash 100-TQFP LQFP-100 14 x 14 mm package surface mount industrial control sensor conditioning communications interface
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