CY8C3866AXA-038 - 8-Bit 67MHz 64KB Flash MCU | Infineon Technologies
N.º de pieza: CY8C3866AXA-038 ✓ ActivoCY8C3866AXA-038 Descripción general
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.
Alternativas directas para CY8C3866AXA-038 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con CY8C3866AXA-038 (mismo factor de forma y huella) — difiere en Package, Product Family, Product Type.
CY8C3666AXI-036
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
CY8C3846AXE-176
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
CY8C3646AXE-178
✅ Sustitución directaConsulte el precio
Ver hoja de datos →CY8C3866AXA-038 Valores máximos y características eléctricas
| Product Type | 8-bit PSoC 3 CY8C38xx microcontroller |
| Processor Architecture | 8051 |
| Frecuencia de reloj máxima | 67 MHz |
| Flash Memory | 64 KB (64K x 8) |
| Number of Terminals | 100 terminals |
| Encapsulado | 100-TQFP (14 x 14 mm) |
| Package Type | Gull-wing, square QFP |
| Tipo de montaje | Surface mount |
| Product Family | PSoC 3 CY8C38xx |
| Core Architecture | 8-bit 8051 |
| Programmable Resources | Configurable digital and analog peripherals |
Guía de configuración de pines de CY8C3866AXA-038 gull-wing, square qfp
Configuración de pines para CY8C3866AXA-038 (encapsulado gull-wing, square qfp). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para CY8C3866AXA-038.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
CY8C3866AXA-038 es adecuado para 6 aplicacións: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para CY8C3866AXA-038 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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 |
Diferenciadores clave
- Higher CY8C38xx family feature level than the listed CY8C36xx candidates (frente a CY8C3666AXI-036)
- Same family level with a different orderable suffix and configuration (frente a CY8C3846AXE-176)
- 100-terminal package provides high signal and peripheral access (frente a CY8C3646AXE-178)
Notas de diseño
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.
Información de cumplimiento
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.
