C8051F220 - 25MHz 8KB Flash 8051 MCU | Silicon Labs
料号： C8051F220 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
C8051F220 概述
A microcontroller is a programmable integrated circuit that executes firmware, reads inputs, controls outputs, and manages embedded-system timing. The C8051F2xx family belongs to the broader 8-bit MCU hierarchy and is intended for applications requiring mixed-signal measurement, serial communication, and compact control functions without a larger external processor.
Verified device features include 8 KB flash organized as 8K x 8, 32 external ADC inputs, programmable ADC throughput up to 100 ksps, and programmable amplifier gains of 0.5, 1, 2, 4, 8, and 16. The ADC has a reported ±1/2 LSB integral nonlinearity figure and no missing codes in the supplied product description.
The C8051F220 is identified as an 8051 C8051F2xx MCU with an 8-bit data bus and a maximum clock of 25 MHz in the distributor records. Its 48-TQFP package provides a surface-mount implementation with 7 x 7 mm dimensions as listed by DigiKey. The supplied sources do not provide a verified manufacturer ordering-code suffix or complete pin-level electrical table.
Typical applications include industrial sensor acquisition, temperature and process measurement, digital control panels, low-speed serial equipment, embedded instrumentation, and compact mixed-signal control systems. The ADC and programmable gain make the device useful for analog front ends where multiple inputs must be scanned rapidly.
When designing around the C8051F220, confirm the exact package variant, oscillator requirements, supply voltage, programming interface, and ADC reference arrangement against the selected ordering code and manufacturer documentation. Do not infer missing specifications from similarly named C8051F2xx devices.
直接替换替代料： C8051F220 ——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： C8051F220 （相同外形与封装尺寸） ——差异在于 ADC Resolution, Package, ADC External Inputs, ADC Integral Nonlinearity, RoHS Status.
快速对比工具——选择替代料号进行并排对比：
该产品暂无直接替换替代料。
请求替代料C8051F220 最大额定值与电气特性
| Product Type | 8-bit mixed-signal microcontroller |
| Processor Core | C8051F2xx 8051-compatible core |
| Maximum Clock | 25 MHz |
| 数据总线宽度 | 8 bit |
| Flash Memory | 8 KB (8K x 8) |
| ISP Flash | 8 KB |
| ADC Resolution | 8 bit |
| ADC External Inputs | 32 channels |
| ADC Maximum Throughput | 100 ksps |
| ADC Integral Nonlinearity | ±1/2 LSB |
| Programmable Amplifier Gain | 0.5x, 1x, 2x, 4x, 8x, 16x |
| Comparators | 2 |
| 封装 | 48-pin TQFP, 7 x 7 mm |
| 安装类型 | Surface mount |
| RoHS 状态 | unknown |
| REACH Status | unknown |
C8051F220 48-pin tqfp, 7 x 7 mm 引脚配置指南
C8051F220（48-pin tqfp, 7 x 7 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： C8051F220.
请参阅 数据手册 以查看完整引脚配置。
典型应用
C8051F220 适用于 6 应用s: Industrial Sensor Acquisition, Process Measurement and Control, Embedded Instrumentation, Digital Control Panel, Low-Speed Serial Equipment, Portable Battery-Powered Controller.
Industrial Sensor Acquisition
The C8051F220 fits compact industrial sensor-acquisition systems that need local analog measurement and control. Its verified 32-channel external ADC input capability supports multiplexing among sensors, while programmable amplifier gains of 0.5x to 16x help match low-level sensor outputs to the converter range. Throughput can reach 100 ksps for applications requiring rapid scans. Use the MCU beside signal-conditioning, protection, and reference circuitry rather than connecting raw sensor outputs directly without validation. The supplied data does not verify industrial temperature, EMC, or isolation ratings, so those requirements must be checked separately.
推荐
Process Measurement and Control
For process-control panels and compact measurement instruments, the C8051F220 provides an 8-bit control core with integrated analog conversion. The 25 MHz maximum clock supports firmware for sampling, filtering, threshold decisions, and actuator control, while the ADC supports 32 external inputs and programmable gain. A designer can allocate different analog channels to temperature, pressure, or level signals and use the gain settings to reduce front-end amplification requirements. Board-level sensor conditioning and calibration remain necessary, and the supplied data does not confirm the device's full electrical timing or environmental limits.
推荐
Embedded Instrumentation
The C8051F220 is appropriate for compact embedded instrumentation where a local controller must acquire several analog measurements and present results through embedded serial communication. Its 8 KB ISP flash provides room for application firmware, and the mixed-signal ADC avoids requiring a separate converter for every measurement channel. The programmable gain settings of 0.5x through 16x can accommodate different sensor ranges, but the design must establish the ADC reference, input protection, sampling strategy, and calibration method. Verify serial-interface details and exact peripheral assignments in the manufacturer datasheet before finalizing the PCB.
推荐
Digital Control Panel
Use the C8051F220 in a digital control panel when a compact 8-bit controller must combine analog monitoring with discrete control functions. The 25 MHz clock and 8 KB flash are suitable for local logic, input scanning, setpoint handling, and simple control algorithms. Its ADC can monitor up to 32 external inputs, allowing a single controller to supervise multiple analog points while reducing component count. The design should include robust debouncing, actuator-driver protection, fault handling, and a defined update schedule. Because the verified data does not provide complete timer, UART, or I/O specifications, confirm those functions against the exact datasheet.
推荐
Low-Speed Serial Equipment
The C8051F220 can serve as the control MCU in low-speed serial equipment where local state management and analog monitoring are more important than high processor performance. Its 8051-compatible architecture and 8 KB ISP flash support embedded firmware, while the mixed-signal peripherals allow sensor inputs to share the same controller. A system designer should define communication framing, timeout behavior, ESD protection, and connector grounding externally. The supplied sources do not verify a specific UART variant, baud-rate range, or transceiver recommendation, so those details must be taken from the manufacturer documentation.
推荐
Portable Battery-Powered Controller
The C8051F220 can be evaluated for portable measurement or control products where an 8-bit MCU must handle several sensor channels in a small 48-TQFP footprint. The 32-input ADC and selectable gain can reduce the number of external analog switching and amplification components. The verified data does not include sleep currents, active current, or supply-voltage limits, so battery-life calculations and regulator selection cannot be completed from these sources. Before design release, measure worst-case active and standby consumption and confirm the voltage range and temperature grade in the manufacturer datasheet.
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推荐产品汇总
工程参考数据： C8051F220 ——对比、设计指导和合规信息。
选型指南
关键差异点
- Integrated mixed-signal measurement （对比 Generic 8051 microcontroller)
- Compact 48-pin surface-mount implementation （对比 Larger-package legacy 8051 devices)
- ISP flash for embedded firmware （对比 Non-flash ROM-based 8051 devices)
设计说明
Verify the exact C8051F220 supply-voltage range, oscillator arrangement, decoupling requirements, and power-up sequence in the manufacturer datasheet before laying out the board. The supplied data confirms a 25 MHz-class MCU and 48-pin TQFP device but does not provide verified operating-voltage values. Do not assume that a nominal 3 V description applies to every package suffix without checking the selected ordering code.
Treat every ADC-connected pin as an analog input and keep external sensor wiring away from oscillator, programming, and high-current switching paths. The verified ADC supports 32 external inputs, programmable gain from 0.5x to 16x, and throughput up to 100 ksps, so source impedance and settling time must be checked against the acquisition mode. Add input filtering, clamping, and an appropriately stabilized reference only after the electrical limits are confirmed.
Do not substitute a generic 8051 MCU solely because it uses a similar instruction set. The C8051F220 is a specific mixed-signal device with 8 KB ISP flash, a 32-input ADC, programmable amplifier gain, and a 48-pin TQFP package. Before a replacement is approved, compare the complete pinout, memory organization, clock requirements, ADC behavior, peripheral mapping, package dimensions, and programming interface.
合规信息
The supplied distributor search results do not provide verified RoHS, REACH, lead-free, halogen-free, conflict-minerals, or AEC-Q100 statements for C8051F220. Obtain current manufacturer or authorized-distributor documentation before making a compliance claim.
