C8051F500-IM - 50MHz 8051 MCU with CAN | Silicon Labs
N.º de pieza: C8051F500-IM ✓ ActivoC8051F500-IM Descripción general
A microcontroller is a programmable semiconductor that combines a CPU core, memory, peripherals, and input/output interfaces on one integrated circuit. The C8051F500-IM belongs to the 8051-compatible MCU family, with the C8051F50x architecture positioned as an automotive and industrial mixed-signal platform. Its flash memory supports in-system programming, allowing firmware to be programmed or updated without removing the device from its target circuit.
Key features include an 8-bit processor core, a 50 MHz clock, 64 KB of flash, and 4.25 KB of RAM. The integrated 12-bit ADC supports precision analog measurements, while CAN and LIN interfaces support communication in automotive, industrial, and distributed control systems. The 48-QFN package reduces board footprint compared with leaded or larger-outline alternatives and is suited to compact embedded controllers.
The C8051F50x family combines digital control with mixed-signal peripherals. Its 50 MHz operating point provides substantially greater instruction throughput than conventional low-speed 8-bit controllers, supporting responsive control loops, protocol handling, and simultaneous peripheral operation. The family is designed to pack significant performance and 12-bit ADC integration into packages ranging from 32 to 48 pins.
Typical uses include automotive body and comfort modules, industrial control panels, communication controllers, sensor acquisition systems, and CAN or LIN network nodes. For network-connected equipment, the combination of CAN, LIN, flash, and RAM supports a compact embedded node with local processing and field-updatable firmware.
PCB design should account for the exposed thermal pad and high-speed layout requirements. Place decoupling capacitors close to the supply pins, route the exposed pad to the ground plane, and follow the package and pin-connection guidance in the manufacturer datasheet. Confirm the exact peripheral pin assignments before finalizing signal routing and connector protection.
This page combines the verified device identity, package, memory, clock, interface, and mixed-signal characteristics with same-family drop-in alternatives and practical integration guidance. It is designed to accelerate MCU selection, schematic review, footprint verification, and sourcing decisions without obscuring differences in temperature grade, packaging, or peripheral configuration.
Alternativas directas para C8051F500-IM — 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 C8051F500-IM (mismo factor de forma y huella) — difiere en Package.
C8051F501-IM
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
C8051F504-IM
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
C8051F505-IM
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
C8051F506-IM
✅ Sustitución directa ⚠️ Especificaciones sin verificarConsulte el precio
Ver hoja de datos →C8051F500-IM Valores máximos y características eléctricas
| Product Type | 8-bit mixed-signal flash microcontroller |
| Processor Core | C8051F50x |
| CPU Architecture | 8051 |
| Frecuencia de reloj máxima | 50 MHz |
| Maximum Throughput | 50 MIPS |
| Program Memory Type | Flash |
| Program Memory Size | 64 KB (64K x 8) |
| RAM Size | 4.25 KB (4.25K x 8) |
| ADC Resolution | 12 bit |
| CAN Interface | Yes |
| LIN Interface | Yes |
| Supply Voltage Range | 1.8 V to 5.25 V |
| Encapsulado | 48-QFN (7 x 7 mm) |
| Recuento de pines | 48 pins |
| Tipo de montaje | Surface mount |
| Programming Interface | In-system programming (ISP) |
| Application Segment | Automotive and industrial |
Guía de configuración de pines de C8051F500-IM 48-qfn (7 x 7 mm)
Configuración de pines para C8051F500-IM (encapsulado 48-qfn (7 x 7 mm)). 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 C8051F500-IM.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
C8051F500-IM es adecuado para 6 aplicacións: Automotive CAN Network Node, LIN Subnetwork Controller, Industrial Sensor Acquisition Controller, CAN Communication Gateway, Programmable Control Module, High-Speed Mixed-Signal Control System.
Automotive CAN Network Node
The C8051F500-IM fits an automotive network node that must process local sensor data and communicate over CAN. Its 50 MHz 8051-compatible core provides up to 50 MIPS for control logic, while 64 KB of flash stores application firmware and 4.25 KB of RAM supports protocol and application state. The integrated 12-bit ADC can acquire analog sensor inputs without requiring a separate converter. During implementation, connect the MCU to a suitable CAN transceiver, use the datasheet termination and bus-protection guidance, and place supply decoupling close to the device. The compact 48-QFN package reduces board area, but exposed-pad layout and automotive qualification requirements must be resolved before production release.
Recomendado
LIN Subnetwork Controller
A LIN-connected body-control or sensor-hub design can use the C8051F500-IM for protocol handling, local logic, and analog supervision. The device provides LIN connectivity, a 50 MHz core, and 64 KB of flash in a 48-QFN package, making it suitable for compact nodes that must combine communication with control functions. Its 12-bit ADC can be used to monitor resistive or sensor-derived analog conditions when the application requires local measurements. Design the physical layer with a qualified LIN transceiver, protect the bus against electrical transients, and follow the manufacturer’s pin and routing guidance. Because the -IM suffix identifies a specific ordering variant, confirm its temperature range and automotive qualification status against the manufacturer datasheet before deployment.
Recomendado
Industrial Sensor Acquisition Controller
The C8051F500-IM is appropriate for an industrial acquisition controller that combines analog measurement, local processing, and network reporting. Its 12-bit ADC supports higher-resolution sensing than an 8-bit conversion interface, while the 50 MHz core can execute filtering, control, and communication tasks around each conversion. The 4.25 KB of RAM provides space for working buffers, and 64 KB of flash supports structured firmware with in-system programming capability. Place the analog input path away from switching nodes, follow the datasheet grounding and reference guidance, and isolate external sensor wiring where necessary. The 48-QFN outline supports compact controller boards, although thermal-pad soldering and analog layout remain critical to stable measurement performance.
Recomendado
CAN Communication Gateway
Use the C8051F500-IM as the local controller in a CAN gateway that translates or conditions data between a CAN network and another embedded interface. The 50 MHz core and 50 MIPS throughput provide capacity for frame handling alongside application logic, while 64 KB of flash and 4.25 KB of RAM suit embedded gateway firmware. Its CAN and LIN interfaces allow the same controller to bridge automotive network segments, while the 12-bit ADC can support board-health monitoring. A suitable transceiver, protection network, and termination scheme are required at the physical layer. Use short return paths, controlled clock distribution, and solid grounding, and verify peripheral availability and pin multiplexing in the manufacturer datasheet before final schematic sign-off.
Recomendado
Programmable Control Module
The C8051F500-IM can serve as the central controller in a compact programmable automation module combining logic, analog monitoring, and serial networking. Its 50 MHz 8051-compatible processing core handles control loops, while the 64 KB flash provides room for application code and in-system firmware updates. Four-and-a-quarter kilobytes of RAM supports scheduling state and communication buffers, and the 12-bit ADC supports process-value acquisition. The 48-QFN package is appropriate for dense control hardware where a through-hole controller would be excessive. During PCB layout, follow the package drawing, provide local decoupling, route sensitive analog inputs away from high-current switching paths, and connect the exposed pad to the ground plane according to the manufacturer land-pattern guidance.
Recomendado
High-Speed Mixed-Signal Control System
The C8051F500-IM fits mixed-signal control systems that need deterministic digital processing alongside precision analog conversion. The 50 MHz C8051F50x core executes up to 50 MIPS, allowing the controller to service ADC results, communications, and control logic rather than acting only as a simple data logger. The 12-bit ADC, 4.25 KB of RAM, and 64 KB of flash balance real-time processing with compact memory requirements. The 48-QFN package keeps the device suitable for space-constrained control boards. Preserve analog performance by separating input and return paths, using a quiet reference arrangement, and minimizing copper sharing with digital return currents. Confirm sampling timing, peripheral multiplexing, and operating limits directly from the manufacturer datasheet.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para C8051F500-IM — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | C8051F501-IM | C8051F504-IM | C8051F505-IM | C8051F506-IM |
|---|---|---|---|---|---|
| Package | 48-QFN (7 x 7 mm) | 48-QFN (7 x 7 mm) | 48-QFN (7 x 7 mm) | 48-QFN (7 x 7 mm) | 48-QFN (7 x 7 mm) |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Processor Core | C8051F50x | C8051F50x | C8051F50x | C8051F50x | C8051F50x |
| CPU Architecture | 8051, 8-bit | 8051, 8-bit | 8051, 8-bit | 8051, 8-bit | 8051, 8-bit |
| Maximum Clock Frequency | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| ADC Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit |
| CAN Interface | Yes | Yes | Yes | Yes | Yes |
Diferenciadores clave
- High-speed 8051-compatible processing in a compact QFN (frente a C8051F501-IM)
- Established mixed-signal feature combination (frente a C8051F504-IM)
- Field-updateable architecture with integrated network support (frente a C8051F505-IM)
- Precise analog conversion beside real-time control (frente a C8051F506-IM)
Notas de diseño
Use the manufacturer’s 48-QFN land pattern and place local input and output decoupling capacitors immediately adjacent to the relevant supply pins. Keep the exposed thermal pad connected to a low-impedance ground plane with the recommended via arrangement. Avoid placing test points or long return paths beneath the QFN because assembly clearance is limited and long thermal-pad connections can increase inductance during high-speed switching.
Separate analog input routing from clock, CAN, LIN, and other high-current digital nets. Use a continuous ground reference, minimize shared copper between analog returns and switching returns, and place analog input components close to the MCU pins. The 12-bit ADC can benefit from a quiet reference and filtering network, but the exact input impedance, acquisition time, and external-component recommendations must follow the C8051F50x/F51x datasheet.
Do not substitute C8051F500-IQ without redesigning the footprint: that ordering variant is listed in a 48-TQFP package, while C8051F500-IM uses 48-QFN. Also verify flash size, RAM size, ADC channels, communication peripherals, temperature grade, and exposed-pad implementation for every selected family alternative. Family-level pin-for-pin compatibility does not eliminate the need to compare the complete peripheral schedule and package drawing.
Design the regulator for the documented 1.8 V to 5.25 V supply range and check worst-case current with all enabled peripherals, the selected clock, and the intended temperature grade. Place bulk capacitance near the supply entry point and high-frequency decoupling near the IC. Confirm whether analog and digital supply pins require separate filtering or connection according to the manufacturer datasheet before finalizing the power tree.
Información de cumplimiento
The family is identified as automotive and industrial, but no explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was identified for the exact C8051F500-IM ordering code.
