C8051F047 - 8-Bit 25MHz Mixed-Signal MCU | Silicon Labs
料号： C8051F047 ✗ 停产C8051F047 概述
A microcontroller is a programmable system-on-chip that combines a CPU core, memory, peripheral interfaces, and digital or analog I/O. The C8051F04x family belongs to the broader 8-bit microcontroller and embedded-controller hierarchy. The C8051F047 is particularly suited to designs requiring legacy 8051 software compatibility alongside higher-performance mixed-signal peripherals and serial communication capability.
Key verified features include a 25 MHz maximum operating frequency, 32 KB (32K x 8) of flash memory, 32 digital I/O pins, a 10-bit 13-channel ADC operating at up to 100 ksps, and three comparators. A separate verified listing describes a 10-bit ADC with 13 channels and 100 ksps performance, while the family documentation identifies an integrated CAN 2.0B controller for communications-oriented designs.
The C8051F047 uses the Silicon Labs CIP-51 8051-compatible core, as described in the available comparison material. Its mixed-signal feature set allows one device to perform digital control while also acquiring analog measurements and comparing sensor or signal thresholds. The 10-bit ADC and three comparators can reduce the need for separate analog front-end ICs in suitable designs.
Typical applications include industrial automation and factory control, CAN-connected equipment, data acquisition, environmental monitoring, embedded instrumentation, and motor or process-control systems. The 64-TQFP package is appropriate for compact boards requiring a high pin count and stable manufacturing, although actual layout must follow the manufacturer pinout and recommended decoupling guidance.
Designers should verify the exact C8051F047 package variant, pin assignment, electrical limits, clock configuration, ADC reference, and CAN implementation in the manufacturer datasheet before layout release. Because the available verified data does not provide complete pricing, pin-level details, or full electrical tables, this page distinguishes documented facts from parameters requiring confirmation.
This page combines verified distributor identifiers, family-level mixed-signal capabilities, pricing context, drop-in candidates, and application guidance into a concise engineering reference for engineers evaluating the C8051F047 in embedded control designs.
直接替换替代料： C8051F047 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： C8051F047 （相同外形与封装尺寸） ——差异在于 ADC Resolution, Flash Memory.
C8051F046
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →C8051F048
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
C8051F040
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →C8051F047 最大额定值与电气特性
| Core Architecture | 8051-compatible CIP-51 core |
| CPU Type | 8-bit microcontroller |
| 最大时钟频率 | 25 MHz |
| Flash Memory | 32 KB (32K x 8) |
| Digital I/O Pins | 32 pins |
| ADC Resolution | 10-bit |
| ADC Channels | 13 channels |
| ADC Sampling Rate | 100 ksps |
| Comparator Count | 3 comparators |
| CAN Controller | Integrated CAN 2.0B controller |
| 封装 | 64-TQFP (10 x 10 mm) |
| 安装类型 | Surface mount |
| Operating Voltage | 3 V typical |
| Minimum Operating Voltage | 2.7 V |
| Maximum Operating Voltage | 3.6 V |
| Programming | In-system programmable flash |
| Product Family | C8051F04x mixed-signal MCU family |
C8051F047 64-tqfp (10 x 10 mm) 引脚配置指南
C8051F047（64-tqfp (10 x 10 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： C8051F047.
请参阅 数据手册 以查看完整引脚配置。
典型应用
C8051F047 适用于 6 应用s: CAN-Connected Industrial Control, Data Acquisition and Sensor Monitoring, Environmental Monitoring, Process Control and Automation, Embedded Instrumentation, Programmable Logic Controller.
CAN-Connected Industrial Control
The C8051F047 fits compact CAN-connected industrial controllers because it combines a 25 MHz 8051-compatible core with an integrated CAN 2.0B controller. Its 32 KB of in-system programmable flash provides space for protocol handling, supervisory logic, diagnostics, and configuration storage in one device. The 64-TQFP package also exposes sufficient connections for digital sensors, actuators, status indicators, and service interfaces. For a new control node, place the MCU beside the transceiver and follow the manufacturer's decoupling and layout guidance, because the supplied data does not specify transceiver type or bus-speed details.
推荐
Data Acquisition and Sensor Monitoring
The C8051F047 is appropriate for multi-channel data acquisition because its verified 10-bit ADC provides 13 channels at up to 100 ksps, while three comparators support threshold and limit detection. The 25 MHz core can coordinate sampling, filtering, local calculations, and data transfer, and the 32 KB ISP flash can hold application firmware. Use the MCU as the central measurement controller when moderate resolution and multi-channel throughput are sufficient. The missing verified ADC reference, acquisition-time, and input-channel details must be obtained from the manufacturer datasheet before defining analog input conditioning.
推荐
Environmental Monitoring
The C8051F047 can serve as the control hub in an environmental monitoring station because it combines 13 10-bit ADC inputs, three comparators, 32 digital I/O pins, and CAN communication in one mixed-signal device. A controller can sample temperature, humidity, light, or gas-sensor interfaces, apply calibration and filtering, and publish measurements over a local network. The 32 KB ISP flash accommodates firmware, calibration tables, and operating parameters, while in-system programming simplifies field updates. Because the verified data does not specify sensor excitation, ADC reference accuracy, or low-power modes, those requirements need separate review.
推荐
Process Control and Automation
The C8051F047 is well matched to process-control tasks that combine digital sequencing with analog supervision. Its 25 MHz 8051-compatible core can execute control logic, the 13-channel ADC can acquire process variables, and the three comparators can implement fast threshold functions. Integrated CAN 2.0B support allows the controller to exchange supervisory data with production equipment. The 64-TQFP package provides a compact industrial controller footprint, but final isolation, protection, EMC, and power requirements must be developed around the exact manufacturer electrical and application guidance.
推荐
Embedded Instrumentation
The C8051F047 can act as the measurement and control engine in embedded instrumentation because it integrates flash memory, a 10-bit ADC, comparators, digital I/O, and CAN into a single controller. Engineers can use the 13 ADC channels for analog front ends, the comparators for range detection, and the 25 MHz core for calibration and measurement sequencing. Its 32 KB flash is suitable for moderate embedded firmware, while ISP supports in-circuit updates. The verified information does not establish precision-reference accuracy or metering-grade performance, so laboratory-grade measurements require additional analog and calibration analysis.
推荐
Programmable Logic Controller
The C8051F047 is a viable compact PLC controller for small machines and test fixtures because its 8051-compatible core handles deterministic sequencing, while 32 digital I/O pins support switches, relays, encoders, and status signals. The 13-channel ADC adds analog supervision without requiring a separate measurement MCU, and CAN 2.0B provides a path to remote panels or supervisory controllers. The 64-TQFP package supports automated board assembly and a compact control board. Engineers should validate input thresholds, timing margins, isolation, and safety behavior because these parameters are not included in the verified search data.
推荐
推荐产品汇总
工程参考数据： C8051F047 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | C8051F046 | C8051F048 | C8051F040 | C8051F042 | C8051F044 |
|---|---|---|---|---|---|---|
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Package | TQFP-64 (10 x 10 mm) | TQFP-64 (10 x 10 mm) | TQFP-64 (10 x 10 mm) | TQFP-64 (10 x 10 mm) | TQFP-64 (10 x 10 mm) | TQFP-64 (10 x 10 mm) |
| CPU Architecture | 8051-compatible CIP-51 | 8051-compatible CIP-51 | 8051-compatible CIP-51 | 8051-compatible CIP-51 | 8051-compatible CIP-51 | 8051-compatible CIP-51 |
| CPU Class | 8-bit | 8-bit | 8-bit | 8-bit | 8-bit | 8-bit |
关键差异点
- Integrated mixed-signal resources （对比 C8051F046)
- Integrated CAN 2.0B controller （对比 C8051F048)
- 25 MHz mixed-signal processing （对比 C8051F040)
- 32 KB in-system programmable flash （对比 C8051F042)
设计说明
Design the C8051F047 supply around the verified 2.7 V to 3.6 V operating range and place local bypass capacitors close to the device power pins using the manufacturer reference layout. The supplied data does not specify the number or value of required capacitors, so no component values are asserted here. Confirm core and analog supply requirements, sequencing, current limits, and startup behavior in the official datasheet before finalizing the power tree.
Keep the 13-channel analog interface away from high-current switching paths and route each input according to the manufacturer pinout. A single-ended analog reference and shared ground return can degrade accuracy, so use the datasheet's grounding and reference recommendations rather than assuming a generic star point. The supplied information confirms a 10-bit, 100 ksps ADC but does not provide input impedance or acquisition timing; those values determine the required source impedance and sample-and-hold settling.
Do not treat the C8051F046, C8051F048, C8051F040, C8051F042, or C8051F044 as automatically interchangeable solely because they use the same 64-TQFP family footprint. Compare the exact pin names, power pins, ADC channels, comparator assignments, oscillator pins, reset behavior, and memory map against the schematic. Firmware migration also requires checking peripheral-instance numbers, interrupt vectors, and register differences.
For CAN-connected equipment, keep the digital controller and analog front end separated, and follow the transceiver manufacturer's recommendation for bus routing and termination. The verified data establishes only the presence of a CAN 2.0B controller, not transceiver topology or supported bus rates. Confirm differential routing, ground reference, protection devices, isolation needs, and firmware bit-timing settings using the complete manufacturer and transceiver documentation.
Reserve programming and debug access during schematic and layout planning even though in-system programming is a verified device feature. A compact 10 x 10 mm TQFP does not imply that all pins are interchangeable: the mixed-signal device may assign pins to analog inputs, comparators, clocking, reset, and communications. Verify the exact ordering suffix and land pattern against the official mechanical drawing before releasing the PCB.
合规信息
The supplied verified records do not explicitly extract compliance statements for the base C8051F047 MPN. A secondary comparison result mentions RoHS and REACH for related devices, but it is insufficient to assign those statuses to the target.
