C8051F007R - 25MHz 8051 MCU with 32KB Flash | Silicon Labs
部品番号: C8051F007R ✓ 生産中C8051F007R 概要
An 8-bit microcontroller is a programmable semiconductor containing a central processing unit, memory, and peripheral interfaces on one integrated circuit. The C8051F00x family uses a CIP-51-compatible enhanced 8051 architecture, making it part of the broader embedded-controller and microcontroller hierarchy. Its combination of Flash memory, digital I/O, serial communication capability, and analog conversion functions allows a single device to supervise sensors, actuators, communications, and industrial control logic.
The principal specifications include a 25 MHz maximum clock, 32 KB of 8-bit Flash program memory, 2.25 KB of 8-bit RAM, eight I/O lines, and a 2.7 V to 3.6 V operating supply range. The program-memory capacity supports substantially larger firmware than the smaller members of the C8051F00x family, while the LQFP-32 package provides enough pins for external interface and signal-conditioning requirements.
The enhanced 8051 architecture is designed for efficient embedded execution and compatibility with established 8051 development workflows. Internal peripherals reduce the need for separate logic devices, while the Flash-based program memory permits field reprogramming and simplifies firmware maintenance. Because the device operates from a 3.3 V supply range, system-level design should account for voltage levels, clock requirements, decoupling, and the electrical limits of connected sensors and actuators.
Typical applications include industrial control modules, data-acquisition equipment, environmental monitoring, serial-interface controllers, compact instrumentation, and embedded communication equipment. The 32 KB Flash capacity is useful for protocol handling, state-machine control, diagnostics, and configurable product functions, while the eight I/O pins support digital control and communication signaling.
For PCB implementation, place the required supply bypass capacitors close to the supply pins and route the clock network away from high-current switching nodes. Confirm the exact pin assignments, analog input limits, oscillator options, and programming connections against the manufacturer datasheet before releasing the PCB or firmware.
This product page combines the device's core specifications, verified source links, same-family drop-in considerations, comparison parameters, and practical integration guidance. It supports faster component identification while keeping PCB compatibility and firmware migration requirements at the center of the selection process.
ドロップイン代替品: C8051F007R — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: C8051F007R （同一形状・フットプリント） — 相違点: Package, ADC Channel Count, ADC Resolution, DAC Channel Count, DAC Resolution.
C8051F005R
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →C8051F006R
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →C8051F022R
✅ ドロップイン価格はお問い合わせください
データシートを見る →C8051F007R 最大定格＆電気的特性
| Product Type | 8-bit microcontroller |
| Series | C8051F00x |
| Processor Core | Enhanced 8051 CIP-51-compatible core |
| Maximum Clock Speed | 25 MHz |
| Program Memory Size | 32 KB (32K x 8) |
| Program Memory Type | Flash |
| RAM Size | 2.25 KB (2.25K x 8) |
| Number of I/O Pins | 8 |
| Supply Voltage Range | 2.7 V to 3.6 V |
| パッケージ | 32-LQFP (7 mm x 7 mm) |
| 実装タイプ | Surface mount |
| Manufacturer | Silicon Labs |
C8051F007R 32-lqfp (7 mm x 7 mm) ピン配置ガイド
C8051F007R (32-lqfp (7 mm x 7 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: C8051F007R.
詳細は データシート をご参照ください。
主な用途
C8051F007R の用途: 6 件s: Industrial Control Modules, Environmental Monitoring, Serial Communication Equipment, Data Acquisition Systems, Compact Instrumentation, Appliance and Equipment Control.
Industrial Control Modules
The C8051F007R fits compact industrial controllers that require deterministic 8-bit processing, local logic, and field-updatable firmware. Its 25 MHz maximum clock supports responsive control-loop and supervisory tasks, while 32 KB of Flash provides room for state machines, diagnostics, communication routines, and configuration tables. The eight I/O pins can support digital sequencing and control signals. The 2.7 V to 3.6 V operating range suits 3.3 V industrial boards, provided field wiring is isolated and appropriately protected.
おすすめ
Environmental Monitoring
The C8051F007R can coordinate environmental sensors in a 3.3 V monitoring node that measures temperature, humidity, air quality, or light level. Its 2.25 KB RAM is suitable for sampling buffers and short protocol frames, while 32 KB of Flash accommodates compensation tables, logging logic, and communication firmware. The 25 MHz clock allows sensors to be polled efficiently without a larger processor. Eight I/O lines can handle alarm, enable, and status functions, although the final channel count depends on the selected peripheral configuration.
おすすめ
Serial Communication Equipment
The C8051F007R is appropriate for protocol converters, remote I/O nodes, and compact communication controllers requiring a small, deterministic embedded footprint. Its 25 MHz core can execute framing, checksums, address handling, and command parsing, while 32 KB of Flash stores protocol tables and application logic. The eight I/O pins support request/response signaling and status indicators. Because serial functions and alternate pin assignments must follow the device configuration, the board design should preserve the manufacturer-recommended oscillator and programming connections.
おすすめ
Data Acquisition Systems
The C8051F007R can serve as the local controller in compact data-acquisition equipment that samples sensors and transfers processed results. Its 25 MHz processing rate supports digital filtering, calibration, and packet preparation, while 2.25 KB of RAM accommodates temporary sample and working buffers. The 32 KB Flash region is useful for storing setup parameters, conversion coefficients, and acquisition state machines. Confirm the required analog-input count, conversion performance, and trigger resources against the family datasheet before assigning external sensing circuitry.
おすすめ
Compact Instrumentation
The C8051F007R is well matched to portable and bench-top instrumentation that needs local calibration, display control, and data handling without a high-power processor. Its 32 KB Flash capacity can hold measurement routines, calibration coefficients, menus, and diagnostics, while the 2.25 KB RAM supports active working buffers. The 2.7 V to 3.6 V supply range simplifies integration with 3.3 V signal paths. Eight I/O lines provide control and status channels, but analog precision ultimately depends on the selected sensor, reference, and signal-conditioning design.
おすすめ
Appliance and Equipment Control
The C8051F007R can control compact appliances, test equipment, and embedded products where a small MCU manages modes, buttons, indicators, and actuators. A 25 MHz core executes control logic promptly, and 32 KB of Flash provides enough space for multi-mode operation, diagnostics, and field-configurable behavior. The eight available I/O lines support direct digital interface functions. For motor, heater, or mains-connected products, use appropriate isolation, protection, and driver circuits; the microcontroller supply must remain within 2.7 V to 3.6 V.
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おすすめ製品の概要
エンジニアリング参考データ: C8051F007R — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | C8051F005R | C8051F006R | C8051F022R |
|---|---|---|---|---|
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Package | 32-LQFP (7 mm x 7 mm) | 32-LQFP (7 mm x 7 mm) | 32-LQFP (7 mm x 7 mm) | 32-LQFP (7 mm x 7 mm) |
| Product Type | 8-bit microcontroller | 8-bit microcontroller | 8-bit microcontroller | 8-bit microcontroller |
| Processor Core | Enhanced 8051 CIP-51-compatible core | Enhanced 8051 core | Enhanced 8051 core | Enhanced 8051 core |
| Program Memory Type | Flash | Flash | Flash | Flash |
主な差別化要因
- Four times the Flash capacity of the C8051F005R option （vs C8051F005R)
- Higher firmware capacity without changing the 32-LQFP footprint （vs C8051F006R)
- Direct 25 MHz processing and eight-I/O configuration （vs C8051F022R)
設計ノート
Route the 32-LQFP footprint strictly from the manufacturer package drawing and pin table. Place the required bypass capacitors adjacent to the supply and ground pins, use a short and direct return path for switching current, and avoid routing high-current or high-edge-rate signals beneath the MCU. The 7 mm by 7 mm footprint requires a land pattern appropriate to the exact 32-LQFP dimensions rather than a generic square QFN pattern.
Design the supply for the full 2.7 V to 3.6 V operating range and verify the peripheral configuration, clock speed, and analog activity against the manufacturer's electrical limits. Use local high-frequency bypass capacitance and maintain a low-impedance supply distribution path. If the board also powers sensors or communication devices, prevent their current transients from pulling the MCU supply outside its operating limits.
Do not assume that every C8051F00x member is interchangeable merely because it uses a similar package. C8051F005R and C8051F006R provide 8 KB of Flash, compared with 32 KB in the C8051F007R, so either can require firmware reduction and a timing review. Check alternate-function assignments, analog resources, clock requirements, reset behavior, and programming signals before treating a lower-memory member as a drop-in replacement.
Keep the clock path short and isolated from analog inputs and switching nodes. Use a stable ground reference for measurement circuitry and position external crystals, if used, according to the family layout guidance. Since the MCU has eight I/O pins, careful pin multiplexing is important; reserve programming and debug access before assigning the remaining pins to field wiring, especially on densely populated control boards.
The eight-I/O count makes the available pin multiplexing more restrictive than in larger MCU packages. Assign outputs to loads that can tolerate their rise and fall behavior, use suitable series damping for slow external edges where needed, and protect long cables at the board boundary. Keep external signal returns short and away from the clock and supply paths to reduce noise coupling into precision or high-impedance measurements.
コンプライアンス情報
RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals declarations were not identified for the exact C8051F007R ordering code.