C8051F023 - 25MHz Mixed-Signal 8-Bit MCU | Silicon Labs
MPN： C8051F023 ✗ 停產C8051F023 概覽
A mixed-signal microcontroller combines a digital processor with analog conversion and comparison functions on one semiconductor die. The C8051F023 sits in the hierarchy MCU → mixed-signal microcontroller → 8-bit microcontroller → embedded semiconductor, providing sensor acquisition, control output, communications, and timing in one device. Its integrated analog peripherals reduce the need for separate ADC, DAC, and comparator components when board space or cost is important.
Key features include the 25 MHz processor performance, 64 kB program Flash, 4.25 kB RAM, 8-channel 10-bit ADC sampling at 100 ksps, 2-channel 12-bit DAC, and two comparators. Five 16-bit timers support precise timing, periodic control, and communication tasks. The verified distributor listing identifies the device in a 64-TQFP package measuring 10 mm by 10 mm.
The device architecture combines the established 8051 instruction set with analog-intensive peripherals in a mixed-signal system-on-chip design. The ADC and DAC provide conversion functions directly in the control loop, while comparators can support threshold detection and signal monitoring. The package provides 64 digital I/O pins according to the verified C8051F02x datasheet snippet, although exact pin assignments and package details should be confirmed against the manufacturer documentation.
Typical uses include industrial measurement and control, data acquisition, sensor-interface systems, analog signal conditioning, and compact embedded instruments. The 100 ksps ADC is suitable for many low-to-moderate-bandwidth acquisition tasks, while the DAC supports programmable analog output in test equipment and control systems.
A key design consideration is analog signal integrity. Place ADC inputs, DAC outputs, reference connections, and power pins according to the manufacturer layout guidance, keeping high-current switching paths away from sensitive analog traces and providing appropriate decoupling. The verified web data does not provide complete pinout, operating-temperature, supply-voltage, lifecycle, or compliance values, so those details require confirmation before production release.
直接替換替代品，適用於 C8051F023 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： C8051F023 （相同外形與佔位） — 差異在於 ADC Resolution, Package, DAC Resolution, Core, Digital I/O Pins.
此產品無可直接替換的替代品。
申請替代品C8051F023 最大額定值與電氣特性
| Core | 8051, 8-bit |
| Processor Performance | 25 MHz |
| Program Flash | 64 kB |
| RAM | 4.25 kB |
| ADC Resolution | 10-bit |
| ADC Channels | 8 channels |
| ADC Sampling Rate | 100 ksps |
| DAC Resolution | 12-bit |
| DAC Channels | 2 channels |
| Comparators | 2 |
| Timers | 5 x 16-bit |
| Digital I/O | 64 pins |
| 封裝 | 64-TQFP, 10 mm x 10 mm |
| 安裝類型 | Surface mount |
| Device Type | Mixed-signal 8-bit microcontroller |
C8051F023 64-tqfp, 10 mm x 10 mm 腳位配置指南
C8051F023（64-tqfp, 10 mm x 10 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： C8051F023.
請參閱 資料表 以查看完整腳位配置。
典型應用
C8051F023 適用於 6 應用s: Industrial Sensor Acquisition, Programmable Test and Measurement Equipment, Process Control and Automation, Embedded Data Logger, Analog Signal Conditioning System, Embedded Communication Gateway.
Industrial Sensor Acquisition
The C8051F023 fits industrial sensor-acquisition systems that need multiple analog inputs and local control without a separate MCU and ADC package. Its verified 8-channel, 10-bit ADC operates at up to 100 ksps, while the 25 MHz 8051 core can process readings and manage control logic. Two comparators can support threshold or limit detection when the application requires simple discrete decisions. The 64 kB Flash provides room for firmware, and 4.25 kB RAM supports acquisition buffers and control state. Confirm input impedance, sampling time, reference accuracy, and operating-temperature limits in the manufacturer datasheet before deploying it in a production instrument.
推薦
Programmable Test and Measurement Equipment
The C8051F023 is suitable for compact test and measurement equipment that needs an ADC for reading sensors and a DAC for generating control or stimulus signals. The 10-bit, 8-channel, 100 ksps ADC supports low-to-moderate-speed measurements, while the 12-bit, 2-channel DAC provides programmable analog outputs. The integrated comparators can detect thresholds around measured signals, and the five 16-bit timers help organize sampling intervals and test timing. A 25 MHz control core allows calibration and communication functions to coexist in the same device. Validate DAC settling, ADC accuracy, reference drift, and analog output loading against the instrument specification.
推薦
Process Control and Automation
The C8051F023 can serve as the local controller in a process-control subsystem that reads multiple analog process variables and produces analog control outputs. Its 8-channel ADC provides a single acquisition front end for pressure, temperature, level, or other slowly changing signals, while the dual DAC can drive analog setpoints or control references. The five 16-bit timers support periodic sampling, actuator updates, and communication timing. The integrated comparators are useful for detecting upper and lower limits without immediately involving software. For industrial deployment, verify the device's verified operating-temperature range, supply regulation, ESD requirements, and any required safety isolation before installation.
推薦
Embedded Data Logger
The C8051F023 is appropriate for an embedded data logger that periodically samples analog channels and stores or transmits measurements. Its 25 MHz processor can manage acquisition scheduling, data formatting, communications, and control functions, while the 64 kB Flash can hold firmware and potentially nonvolatile configuration data. The ADC's verified 8-channel configuration permits multiplexing among multiple sensors, and the five 16-bit timers can create deterministic sampling periods. The 12-bit DAC is less central to logging but can support calibration or stimulus functions in a combined logger and test device. Check write endurance, data-retention, supply, and environmental requirements separately from the MCU specifications.
推薦
Analog Signal Conditioning System
The C8051F023 can act as the digital controller in an analog signal-conditioning system where inputs must be digitized, compared against limits, and converted into controllable outputs. Its 10-bit ADC is suitable for many instrumentation signals, and the 12-bit DAC can produce calibration or adjustment voltages. Two comparators provide fast threshold information for over-range or alarm decisions. The 8051 core can implement compensation, filtering, configuration, and communications functions. The analog subsystem still depends on external sensor interfaces, reference design, amplifier selection, and board layout, so the MCU should be selected alongside—not instead of—proper analog front-end design.
推薦
Embedded Communication Gateway
The C8051F023 can support an embedded gateway that gathers local measurements and coordinates communications between sensors or an instrument and a host. The integrated ADC and timers allow a device to sample and organize local analog data, while the 8051 core handles protocol processing and control state. The 64 kB Flash provides code storage for networking and application firmware, and the 4.25 kB RAM can support protocol buffers. The verified data identifies additional communication interfaces but does not enumerate them, so the exact UART, SPI, or other interface requirements must be checked in the datasheet. External transceivers and connectors may still be required for field-bus communication.
推薦
推薦產品摘要
工程參考資料，適用於 C8051F023 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 |
|---|---|
| Package | 64-TQFP, 10 mm x 10 mm |
| Brand | Silicon Labs |
| Core | 8051, 8-bit |
| Processor Performance | 25 MHz |
| Program Flash | 64 kB |
| RAM | 4.25 kB |
| ADC | 10-bit, 8 channels, 100 ksps |
| DAC | 12-bit, 2 channels |
| Comparators | 2 |
| Timers | 5 x 16-bit |
| Digital I/O | 64 pins |
| Unit Price | $7.9587 as of 2026-10-23 |
主要差異化特點
- Integrated mixed-signal resources (對比C8051F020)
- Analog acquisition density (對比C8051F021)
- Output control capability (對比C8051F022)
設計說明
Reserve the C8051F023 footprint for the verified 64-TQFP, 10 mm x 10 mm package and route analog and digital signals according to the manufacturer pinout. Keep ADC inputs and DAC outputs away from high-current switching nodes and clock edges. Provide a continuous ground reference beneath the analog section where the board stack-up permits, and route the analog reference connection away from noisy digital return currents.
Do not select the power rails until the manufacturer datasheet confirms the C8051F023 supply-voltage range, current limits, sequencing, and decoupling requirements. The verified search results confirm a 25 MHz MCU and 64 kB Flash but do not provide complete operating-current or supply-range data. Use the official electrical-characteristics table and calculate regulator headroom for the highest processing and analog-conversion load before layout release.
The 8-channel, 10-bit ADC and dual 12-bit DAC can be sensitive to source impedance, sampling time, reference stability, and digital coupling. Confirm the acquisition requirements and maximum source impedance in the datasheet, place input conditioning components close to the relevant pins, and isolate high-speed digital routes from analog traces. Use averaging or oversampling only after verifying that the resulting bandwidth and latency meet the control-loop requirements.
Do not infer complete pin compatibility from the shared C8051F02x family name. The provided cross-reference results mention related C8051F020, C8051F021, and C8051F022 variants, but they do not verify that any of them is pin-to-pin drop-in compatible with C8051F023. Compare package dimensions, every pin function, supply limits, memory, peripheral resources, and software support before approving a substitution.
合規資訊
The verified web data does not provide manufacturer statements for RoHS, REACH, lead-free status, halogen-free status, or conflict-minerals compliance. These fields remain unknown rather than assumed.
