C8051F019 - 25MHz 16KB Mixed-Signal MCU | Silicon Labs
部品番号: C8051F019 ✓ 生産中C8051F019 概要
A mixed-signal microcontroller is an integrated circuit that combines a digital microcontroller core with analog functions such as ADCs, DACs, comparators, and voltage references. In the broader semiconductor hierarchy, the C8051F019 belongs to the microcontroller and embedded-processor class, where an 8051-compatible core executes firmware while dedicated peripherals acquire, generate, compare, and control analog signals.
The verified device data identifies a 25 MHz operating speed, 16 KB of flash memory, 1.25 KB of RAM, a 10-bit ADC, and a 48-pin TQFP package. The C8051F018/9 family also provides two 12-bit DACs, two voltage comparators, an internal voltage reference, and hardware implementations of I2C or SMBus, UART, and SPI. These resources allow one controller to manage sensing, output generation, communications, and general-purpose control.
The architecture combines an 8051-compatible core with high-speed 12-bit analog peripherals. The listed maximum execution rate is 25 MIPS, while the ADC provides 10-bit resolution for common industrial and instrumentation measurements. Integrated serial interfaces reduce the need for external peripheral chips, and in-system programming supports firmware programming and updates through the device programming interface.
Typical uses include industrial sensor acquisition, process-control modules, data-acquisition equipment, embedded instrumentation, and compact control panels. The device is particularly appropriate when a design needs several analog channels, dual DAC outputs, programmable comparators, and conventional serial communications without requiring a higher-complexity control platform.
The principal design consideration is power-supply and signal integrity. The verified supply range is 2.8 V to 3.6 V, so the regulator, decoupling network, and digital and analog ground arrangement must preserve a stable 3.3 V operating environment. Analog inputs should be protected against transients and configured for the impedance and source range of the selected sensors.
This page consolidates verified manufacturer-related and distributor information, maps the C8051F019's mixed-signal capabilities, identifies the unresolved need for a complete public pin list, and explains where drop-in alternatives can and cannot be substantiated without adding unverified technical claims.
ドロップイン代替品: C8051F019 — 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: C8051F019 （同一形状・フットプリント） — 相違点: Package, RAM Size.
C8051F019-GQR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
C8051F019 最大定格＆電気的特性
| Microcontroller Type | 8-bit mixed-signal microcontroller |
| 最大クロック周波数 | 25 MHz |
| Maximum Instruction Execution Rate | 25 MIPS |
| Core | CIP-51 8051-compatible core |
| Program Memory | 16 KB flash |
| Program Memory Type | ISP flash |
| RAM Size | 1.25 KB |
| ADC Resolution | 10 bit |
| DAC Resolution | 12 bit |
| DAC Quantity | 2 |
| Voltage Comparator Quantity | 2 |
| Voltage Reference | Internal voltage reference |
| Serial Interfaces | I2C/SMBus, UART, and SPI |
| 動作電源電圧 | 2.8 V to 3.6 V |
| パッケージ | 48-pin TQFP, 7 x 7 mm |
| 実装タイプ | Surface mount |
| In-System Programming | Supported |
| RoHS ステータス | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | not_applicable |
C8051F019 48-pin tqfp, 7 x 7 mm ピン配置ガイド
C8051F019 (48-pin tqfp, 7 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: C8051F019.
詳細は データシート をご参照ください。
主な用途
C8051F019 の用途: 6 件s: Industrial Sensor Acquisition, Process Control and Monitoring, Data Acquisition Instruments, Embedded Instrumentation, Communication Gateway, Portable Measurement Module.
Industrial Sensor Acquisition
The C8051F019 fits industrial sensor-acquisition modules because its integrated 10-bit ADC, 25 MHz core, and 1.25 KB RAM can sample and process multiple analog inputs without requiring a separate conversion device. Two 12-bit DACs provide controllable analog outputs for excitation, calibration, or test signals, while the UART and SPI interfaces can connect a local controller or data logger. The 2.8 V to 3.6 V operating range supports 3.3 V system design. Engineers should verify the exact ADC channel count and acquisition timing from the datasheet and apply input protection appropriate to industrial transients.
おすすめ
Process Control and Monitoring
The C8051F019 is suitable for compact process-control and monitoring modules that must measure a process variable and generate proportional control or test outputs. Its 10-bit ADC handles common supervisory and setpoint measurements, the two 12-bit DACs can supply independently controlled analog levels, and the two comparators support threshold detection. Hardware UART, SPI, and I2C/SMBus interfaces allow the controller to cooperate with sensors, displays, and upstream equipment. Firmware should include calibration, filtering, fault-state defaults, and safe output initialization so that control outputs remain predictable during reset.
おすすめ
Data Acquisition Instruments
The C8051F019 can serve as the control center of a small data-acquisition instrument because it combines a 10-bit ADC, two 12-bit DACs, an internal voltage reference, and multiple serial interfaces in a 48-pin TQFP package. Its 16 KB ISP flash accommodates a compact bootloader and application, and the 25 MHz execution rate provides useful control and filtering headroom. UART can carry simple commands, while SPI supports faster peripheral transfers. For laboratory-grade accuracy, verify reference tolerance, ADC linearity, gain error, and calibration method against the manufacturer datasheet rather than assuming the converter resolution alone determines measurement precision.
おすすめ
Embedded Instrumentation
The C8051F019 is appropriate for embedded instrumentation that combines measurement, signal generation, and communications. The 10-bit ADC can capture analog system status, the dual 12-bit DACs can produce reference or stimulus signals, and the comparators can perform fast threshold events. Its 8051-compatible core and 25 MIPS execution capability support menu logic, calibration storage, and communication handling within the available 16 KB flash and 1.25 KB RAM. Designers should partition code and data carefully, use the ISP interface for controlled firmware updates, and verify that the analog ground and supply layout meet the datasheet recommendations.
おすすめ
Communication Gateway
The C8051F019 can be used in a compact communication gateway when the gateway also requires analog monitoring or output control. Its hardware UART provides a straightforward serial host or field-bus interface, SPI offers higher-throughput links to storage or converters, and I2C/SMBus supports shared sensors and configuration devices. The 25 MHz core and 25 MIPS capability are adequate for protocol processing, status filtering, and local supervisory logic, although available RAM is limited to 1.25 KB. Buffering strategy, interrupt latency, and peripheral multiplexing should be evaluated before selecting it for high-throughput networking or buffering-heavy gateway functions.
おすすめ
Portable Measurement Module
The C8051F019 fits portable measurement modules where limited board area, low component count, and mixed-signal control are important. Its 48-pin TQFP package integrates the 10-bit ADC, two 12-bit DACs, comparators, reference, and three serial-interface types, reducing the need for separate analog and interface ICs. The 2.8 V to 3.6 V supply range can align with a 3.3 V rail, although current consumption was not supplied and must be checked for battery sizing. Low-power design should therefore be based on verified active and standby current rather than assumptions, with battery and fuel-gauge compatibility evaluated separately.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: C8051F019 — 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 | C8051F019-GQR |
|---|---|---|
| Package | 48-TQFP (7 x 7 mm) | 48-TQFP (7 x 7 mm) |
| Brand | Silicon Labs | Silicon Labs |
| Microcontroller Type | 8-bit mixed-signal MCU | 8-bit mixed-signal MCU |
| Maximum Clock Frequency | 25 MHz | 25 MHz |
| Maximum Execution Rate | 25 MIPS | 25 MIPS |
| Program Memory | 16 KB ISP flash | 16 KB ISP flash |
| RAM Size | 1.25 KB | 1.25 KB |
| ADC Resolution | 10 bit | 10 bit |
| DAC Configuration | Two 12-bit DACs | Two 12-bit DACs |
| Operating Supply Voltage | 2.8 V to 3.6 V | 2.8 V to 3.6 V |
| Serial Interfaces | I2C/SMBus, UART, and SPI | I2C/SMBus, UART, and SPI |
| Quantity-1 Price | Current distributor quotation required | Current distributor quotation required |
主な差別化要因
- Integrated dual high-resolution DAC outputs （vs C8051F006)
- Mixed-signal integration on a 25 MIPS MCU （vs C8051F001)
- Orderable 48-TQFP configuration （vs C8051F019-GQR)
設計ノート
Design the supply rail for the verified 2.8 V to 3.6 V operating range and place the manufacturer's recommended bypass capacitors close to the supply and ground pins. The supplied data does not include capacitor values, quiescent current, or regulator dropout requirements, so those values must be taken from the manufacturer datasheet. If analog and digital loads share the 3.3 V rail, separate high-frequency decoupling branches can reduce switching-current coupling into the ADC, DAC, and comparator circuitry.
Keep analog input and DAC-output routing away from high-current switching nodes and digital clock traces. Use a compact, continuous ground reference under the device where the package and board construction permit, and route analog returns without narrow necks. Because the verified information does not provide the complete pinout or layout reference, final connections and grounding geometry must follow the C8051F018/9 datasheet rather than inferred package conventions.
Do not treat 16 KB of flash as additional RAM or assume that every C8051F018-family peripheral is identical across ordering options. The supplied data identifies a 10-bit ADC, two 12-bit DACs, two comparators, and three serial-interface types, but it does not provide channel counts, pin assignments, operating temperature grades, or complete timing limits. Verify the exact C8051F019 ordering code and pin table before schematic capture and do not approve a footprint solely from the family name.
Treat analog inputs as potentially high-impedance sources and establish appropriate settling time before sampling. Reference voltage accuracy, ADC gain error, comparator thresholds, and DAC output settling determine real measurement performance beyond the advertised 10-bit ADC and 12-bit DAC resolutions. Use the manufacturer's sample-and-hold and output-loading guidance, and validate filtering and gain choices on the assembled board if precision measurement is required.
コンプライアンス情報
The supplied verified search results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is marked not applicable because the product is an industrial/commercial mixed-signal MCU rather than an explicitly automotive-qualified device.
