R5F21134FP#W4 - 16-Bit 20MHz MCU | Renesas Electronics
MPN: R5F21134FP#W4 ✓ NakahandaR5F21134FP#W4 Ulas
A microcontroller is the central control element of an embedded electronic system. It executes firmware, reads sensor inputs, manages actuators, and coordinates communication and timing functions. Within the semiconductor hierarchy, the R5F21134FP#W4 is a general-purpose microcontroller, part of the Renesas R8C/Tiny Series family, and is built around the R8C/13 CPU core. The R8C core uses a 16-bit architecture with instructions designed for efficient embedded-control operation.
The principal device characteristics include 16 KB of flash memory, 1 KB of RAM, a maximum stated clock frequency of 20 MHz, and 22 general-purpose I/O pins. Its internal oscillator arrangement provides the timing basis for control firmware without requiring a separate clock source for basic operation. The 32-pin plastic molded LQFP package supports conventional surface-mount assembly and provides a practical upgrade path for compact embedded-control boards.
Renesas identifies the R8C/13 Group as being supported for customers that previously adopted these products and recommends the RL78/G14 Group for new designs. That distinction matters during design planning: an existing R8C-based product may benefit from continued software and platform continuity, while a new project should evaluate the manufacturer-recommended RL78/G14 family against current availability, development-tool support, and qualification requirements.
Typical implementation areas include industrial equipment controllers, building and environmental control systems, measurement instruments, compact consumer appliances, and embedded peripheral controllers. The 16 KB flash capacity is suitable for focused control firmware, while the 20 MHz operating rate supports responsive multitasking and time-based control logic. The 1 KB RAM and 22 I/O pins make the device most appropriate for designs where external memory or high-pin-count expansion is unnecessary.
When designing around this device, verify the complete pin assignment, peripheral multiplexing, electrical limits, and programming procedure against the Renesas R5F21134FP datasheet. Confirm that all required timers, serial interfaces, analog functions, clock sources, and interrupt priorities are available on the selected 32-pin LQFP variant. PCB design should preserve access to programming and debug signals while providing appropriate decoupling and a stable clock arrangement.
This product page consolidates the manufacturer family positioning, core specifications, package details, sourcing guidance, and practical selection considerations into one engineering reference. It also distinguishes verified device characteristics from design assumptions and identifies where engineers should consult the official datasheet before schematic release or firmware development.
Mga alternatibo na pwedeng ilagay na R5F21134FP#W4 — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Wala ng magagamit na drop-in alternatibo para sa produkto na ito.
Hilingin ang AlternatiboR5F21134FP#W4 Mga Pinakamataas na Rating at Electrical Characteristics
| Product Type | 16-bit R8C/13-series microcontroller |
| CPU Core | R8C/Tiny Series R8C CPU core |
| Architecture | 16-bit |
| Maximum Operating Frequency | 20 MHz |
| Flash Program Memory | 16 KB (16K x 8) |
| RAM | 1 KB (1K x 8) |
| Number of I/O Pins | 22 |
| Packhaging | 32-LQFP (7 mm x 7 mm) |
| Package Type | Plastic molded LQFP |
| Uri ng Pagpapasok | Surface mount |
| Oscillator | Internal oscillator |
| Shipping Package | Tape and reel |
| Hanay ng Temperature na Operasyon | -20 C to +85 C |
| Silicon Process | High-performance silicon gate CMOS process |
| Instruction Set | R8C high-efficiency instruction set |
| Interrupt Priority Levels | 8 levels, level 0 to level 7 |
Gabay sa Pin Configuration ng R5F21134FP#W4 tape and reel
Pin configuration para sa R5F21134FP#W4 (tape and reel package). Kasama sa digital IC na ito ang GPIO, mga communication interface (UART, SPI, I2C), at mga power pin. Sumangguni sa datasheet ng manufacturer para sa mga alternatibong function ng pin at mga opsyon sa configuration. Mahalaga para sa disenyo ng embedded system at PCB layout.
Wala ng detalyadong pinout data na magagamit para sa R5F21134FP#W4.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
R5F21134FP#W4 ay nararapat para sa 6 aplikasyons: Industrial Equipment Controller, Environmental Monitoring Equipment, Measurement Instrument Control, Consumer Appliance Controller, Building and HVAC Control Module, Peripheral and Interface Controller.
Industrial Equipment Controller
The R5F21134FP#W4 fits a focused machine-control role in which a 16-bit CPU executes control logic at up to 20 MHz while the 22 available I/O pins connect sensors, indicators, relays, and discrete actuators. Its 16 KB of flash can hold a dedicated control program, and 1 KB of RAM supports task state, counters, and communication buffers without requiring an external memory device. A 32-pin LQFP footprint simplifies assembly on conventional industrial control boards. Design validation should confirm that every required timer channel, serial interface, interrupt source, and control signal is present and mapped exactly as shown in the manufacturer pin and peripheral tables.
Inirekomenda
Environmental Monitoring Equipment
The R5F21134FP#W4 can serve as the supervisory controller in a compact environmental monitoring product that samples sensors, applies filtering, drives a display or communications port, and records operating events. Its 20 MHz operating rate supports responsive acquisition and control tasks, while 16 KB of flash is appropriate for firmware centered on measurement sequencing and threshold management. With 22 I/O pins, the device can support digital sensors, alarm outputs, status indicators, and an off-board sensing front end. Pin multiplexing and ADC requirements must be confirmed from the datasheet before assigning analog inputs or communication functions.
Inirekomenda
Measurement Instrument Control
For a bench or embedded measurement instrument, the R5F21134FP#W4 can coordinate front-panel controls, measurement sequencing, calibration constants, and data transfer. The 16-bit architecture and 20 MHz clock provide a responsive platform for fixed-point control and protocol handling, while the 1 KB RAM can support short command and data buffers. Twenty-two I/O pins are useful for switch matrices, status lamps, trigger signals, and serial communications. The design should reserve the programming interface, verify timer capture behavior, and calculate peripheral clock settings before relying on timing-sensitive measurement functions.
Inirekomenda
Consumer Appliance Controller
The R5F21134FP#W4 can manage a compact appliance subassembly with buttons, indicators, relays, and a simple motor or heater actuator. Its 16 KB flash is suitable for deterministic product-control firmware, and the 20 MHz maximum frequency permits responsive state-machine and timer-based operation without a larger application processor. The 32-LQFP package reduces board area relative to higher-pin-count devices, while 22 I/O pins provide useful connectivity for a dedicated controller board. Validate actuator drive levels, isolation requirements, start-up behavior, and brownout conditions in the complete system design.
Inirekomenda
Building and HVAC Control Module
A building-control module can use the R5F21134FP#W4 for scheduled operation, temperature-related logic, actuator commands, and communication with room or system controllers. The device's 16-bit CPU executes at up to 20 MHz, allowing responsive handling of timers, interlocks, and periodic sensor updates, while 22 I/O pins support discrete inputs and outputs. The 1 KB RAM is adequate for small working sets but should be budgeted carefully if diagnostics, logging, or communication buffering grow. Confirm whether the selected design requires a dedicated communications controller, expansion bus, or isolated interface.
Inirekomenda
Peripheral and Interface Controller
The R5F21134FP#W4 is appropriate for a peripheral controller that converts a host command stream into control signals for displays, indicators, relays, or external interfaces. Its R8C/13 CPU core operates as a 16-bit embedded processor, and the 20 MHz rate supports deterministic protocol handling. Sixteen kilobytes of flash provides room for a dedicated communication state machine, while 1 KB of RAM can accommodate short receive and transmit buffers. Before finalizing the board, verify UART, timer, interrupt, and I/O availability against the exact R5F21134FP pinout and ensure that buffering requirements do not exceed the stated RAM capacity.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for R5F21134FP#W4 — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto |
|---|---|
| Manufacturer | Renesas Electronics |
| Package | 32-LQFP (7 mm x 7 mm) |
| CPU Architecture | 16-bit R8C/Tiny Series |
| Maximum Frequency | 20 MHz |
| Flash Program Memory | 16 KB (16K x 8) |
| RAM | 1 KB (1K x 8) |
| Number of I/O Pins | 22 |
| Operating Temperature Range | -20 C to +85 C |
| Shipping Configuration | Tape and reel |
| Oscillator | Internal oscillator |
Pangunahing mga Pagkakaiba
- Compact 16-bit embedded-control platform (kumpara saNo verified drop-in alternative)
- Application-specific I/O connectivity (kumpara saNo verified drop-in alternative)
- Established R8C/13 software platform (kumpara saRL78/G14 family)
Talaan ng Disenyo
Assign the schematic and PCB directly from the R5F21134FP manufacturer pin-description table rather than from a generic LQFP drawing. Confirm power pins, ground pins, reset behavior, oscillator connections, programming signals, and every multiplexed peripheral before routing. Place the required input capacitors and decoupling capacitors close to their associated pins, keep sensitive signal paths short, and preserve a clean return path beneath the device where the package and board stackup permit.
Determine the operating supply range, internal voltage requirements, startup sequence, and permitted clock configuration from the manufacturer electrical characteristics. Connect decoupling according to the datasheet's reference circuit and account for startup current as well as steady-state consumption. If an internal oscillator is used, verify its tolerance and application requirements; if an external clock is required, provide the specified drive and loading arrangement.
Do not treat the #W4 suffix as a different functional MCU when comparing device documentation or creating a cross-reference. The underlying device is R5F21134FP, while #W4 identifies the tape-and-reel ordering form. Before schematic release, confirm that every required timer, serial interface, interrupt, analog function, and port is multiplexed onto the selected 32-LQFP pins without conflicts. Also verify that the firmware toolchain and programming interface support the exact device and package.
Use the manufacturer operating-temperature range of -20 C to +85 C as the device qualification boundary for this orderable configuration. Estimate junction temperature from actual supply voltage, clock activity, I/O loading, ambient temperature, and PCB copper rather than relying on a generic package rating. Provide continuous ground-plane connection beneath the LQFP where the footprint allows, and avoid placing heat sources or long copper bottlenecks next to sensitive timing and analog circuits.
Impormasyon ng Pagsunod sa Kautusan
The available manufacturer and distributor information does not explicitly state material-compliance declarations for this exact orderable MPN. The stated -20 C to +85 C industrial temperature range is not evidence of AEC-Q100 qualification.