R5F21152SP#U0 - 16-Bit 20MHz MCU | Renesas Electronics
料号： R5F21152SP#U0 ✓ 量产中R5F21152SP#U0 概述
A microcontroller is a semiconductor that integrates a processor core, program memory, data memory, and peripherals into one device dedicated to embedded control. The R5C family belongs to the broader hierarchy of embedded processors and microcontrollers, allowing one compact component to execute control logic and manage digital interfaces, timing, communications, and system inputs.
The R5F21152SP#U0 combines a 16-bit processing architecture with a 20 MHz operating speed and 8 KB of flash memory. Its 3 V to 5 V operating range supports both lower-voltage and 5 V industrial or consumer equipment. The 20-pin LSSOP outline offers a gull-wing, surface-mount format with a body width of approximately 4.40 mm, making it suitable for compact embedded-control boards.
The R5C is a high-performance CISC core with an instruction set designed for efficient embedded operation and uses a silicon-gate CMOS process. Compared with a general-purpose processor, the device concentrates control-oriented functions into a smaller package, reducing the number of external components needed for basic sequencing, signal handling, and programmable logic tasks.
Typical uses include industrial controllers, sensor-conditioning systems, motor-control interfaces, appliance control boards, and compact data-acquisition products. A designer can select the R5F21152SP#U0 when an application requires a 16-bit control architecture, 20 MHz performance, 8 KB of embedded flash, and a compact 20-pin package.
Before finalizing the PCB, verify the complete pin assignment, clock configuration, programming interface, and external-component requirements against the manufacturer datasheet. Pay particular attention to supply decoupling and unused-pin handling, because correct implementation at these constraints is essential for reliable operation and repeatable firmware behavior.
This page combines the core R5F21152SP#U0 specifications, package characteristics, sourcing guidance, and drop-in replacement analysis to support faster engineering decisions. It also highlights what must be checked when considering a substitute, particularly pin compatibility, flash capacity, operating voltage, clock rate, and peripheral configuration.
直接替换替代料： R5F21152SP#U0 ——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： R5F21152SP#U0 （相同外形与封装尺寸） ——差异在于 Package.
R5F211A2SP#U0
✅ 直接替换联系询价
查看数据手册 →R5F21152SP#U0 最大额定值与电气特性
| Product Type | 16-bit R8C microcontroller IC |
| CPU Core | R8C/Tiny Series CISC core |
| 最大时钟频率 | 20 MHz |
| Flash Memory | 8 KB |
| Flash Organization | 8K x 8 bits |
| Supply Voltage Range | 3 V to 5 V |
| 封装 | 20-pin LSSOP |
| Terminal Count | 20 terminals |
| Package Terminal Form | Gull wing |
| Package Shape | Rectangular |
| Package Body Width | 4.40 mm |
| Process Technology | Silicon-gate CMOS |
| Instruction Set | CISC |
| Lead-Free Status | Pb-free |
| 安装类型 | Surface mount |
R5F21152SP#U0 4.40 mm 引脚配置指南
R5F21152SP#U0（4.40 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： R5F21152SP#U0.
请参阅 数据手册 以查看完整引脚配置。
典型应用
R5F21152SP#U0 适用于 6 应用s: Compact Industrial Control, Sensor Signal Conditioning, Motor and Actuator Control, Appliance Control Boards, Communication Interface Module, Portable Measurement Device.
Compact Industrial Control
The R5F21152SP#U0 fits compact machine-control and equipment-control designs that require a 16-bit R8C processor, up to 20 MHz execution, and 8 KB of flash. Its 3 V to 5 V operating range supports conventional embedded-control rails, while the 20-pin LSSOP preserves a small surface-mount footprint. Firmware can combine sequencing, digital I/O, timers, and communications while the small package leaves PCB area for the power and interface circuitry. Before deployment, confirm the operating-temperature range, EMC requirements, and every peripheral needed by the production design.
推荐
Sensor Signal Conditioning
The R5F21152SP#U0 is appropriate for compact sensor nodes that digitize or interpret low-bandwidth signals and require deterministic embedded control. Its 16-bit R8C/Tiny-series architecture runs at up to 20 MHz, providing useful processing capability without the footprint of a larger processor. With 8 KB of flash, firmware can implement calibration tables, filtering, threshold logic, status reporting, and communication routines. The 3 V to 5 V range also simplifies integration around common embedded sensors, although the final circuit must include suitable front-end conditioning, decoupling, and protection.
推荐
Motor and Actuator Control
The R5F21152SP#U0 can serve as the supervisory controller in compact motor, valve, or actuator systems where a dedicated high-power driver is not required. Its 20 MHz R8C core can execute state-machine logic, timing, fault detection, and command processing, while the 20-pin LSSOP supports space-constrained boards. The 8 KB flash capacity is suitable for focused control firmware rather than elaborate graphical interfaces. Production designs should verify timer resolution, required I/O count, watchdog behavior, and motor-driver compatibility in the datasheet before connecting external power stages.
推荐
Appliance Control Boards
The R5F21152SP#U0 suits compact appliance controllers that coordinate user inputs, displays, relays, sensors, and safety-related state sequences. Its 3 V to 5 V operating range fits common embedded supply arrangements, and its 16-bit CPU at up to 20 MHz provides responsive control without a high-power processor. The 8 KB flash can hold a compact application program and configuration data, while the LSSOP package simplifies automated board assembly. Validate start-up behavior, brownout handling, isolation needs, and long-term temperature performance before appliance release.
推荐
Communication Interface Module
The R5F21152SP#U0 can act as the protocol controller in a small communications or data-acquisition module. At up to 20 MHz, the R8C core can handle framed data, commands, status indicators, and supervisory logic, while 8 KB of flash supports compact firmware and configuration. The device's 20-pin LSSOP package leaves room for connectors and interface drivers on a compact board. Verify the exact serial or peripheral resources in the manufacturer datasheet and allow for protocol buffering, termination, isolation, and ESD protection in the final interface design.
推荐
Portable Measurement Device
The R5F21152SP#U0 supports compact battery-assisted measurement products that need local control, calibration, status indication, and data formatting. Its 3 V to 5 V supply range can align with low-energy embedded systems, and the 20-pin LSSOP helps minimize board area. The 16-bit CPU at 20 MHz is suitable for moderate real-time signal and control tasks, while 8 KB flash constrains firmware to compact functions. For production use, evaluate sleep-mode requirements, regulator behavior, measurement accuracy, battery life, and the environmental rating against the application specification.
推荐
推荐产品汇总
工程参考数据： R5F21152SP#U0 ——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 | R5F211A2SP#U0 |
|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics |
| Package | 20-LSSOP | 20-LSSOP - same package family |
| Product Type | 16-bit R8C microcontroller | R8C microcontroller |
| Pin Compatibility | 20-terminal LSSOP reference | Same package; terminal-level compatibility requires datasheet review |
关键差异点
- Target flash capacity is explicitly specified （对比 R5F211A2SP#U0)
- Maximum operating frequency is defined （对比 R5F211A2SP#U0)
- Documented supply-voltage range （对比 R5F211A2SP#U0)
设计说明
Use the manufacturer package drawing and recommended land pattern for the 20-pin LSSOP rather than scaling a generic SOIC footprint. Confirm terminal pitch, terminal length, body width, and lead orientation against the R5F21152SP package drawing. Place input and output decoupling capacitors close to their assigned supply terminals, preserve the recommended copper and thermal geometry, and provide unobstructed assembly clearance around the narrow gull-wing leads.
Design the 3 V to 5 V supply path around the electrical limits and operating conditions in the manufacturer datasheet. Account for voltage tolerance, startup behavior, current demand, and the behavior of attached loads when selecting regulator capacity. Place a local bulk capacitor and high-frequency bypass capacitor near the device supply terminals, keep return-current paths short, and verify the design at the minimum and maximum supply conditions rather than only at nominal voltage.
Do not assume that sharing a 20-pin LSSOP outline guarantees a drop-in replacement for R5F211A2SP#U0. Compare the complete terminal table, flash capacity, RAM, clock limits, peripheral assignments, interrupt vectors, and programming configuration. A footprint-compatible substitute can still require firmware changes, so perform a hardware comparison, update the firmware, and validate timing and I/O behavior before production use.
Separate clocks, high-speed signals, and sensitive analog inputs from noisy switching or power-conversion sections where the board architecture permits. Use short return paths for digital signals, avoid routing control nets beneath switching nodes, and keep programming or debug connectors accessible for production programming. Treat every unused terminal according to the manufacturer datasheet rather than leaving its electrical state unverified.
合规信息
The product is identified as Pb-free. Formal RoHS, REACH, halogen-free, and conflict-minerals declarations were not identified and therefore remain unknown. AEC-Q100 is not applicable because this is a general-purpose microcontroller rather than an automotive-qualified device.
