Renesas Electronics

R5F21124FP#U0 - 16-bit 16MHz 16KB Flash MCU | Renesas Electronics

MPN: R5F21124FP#U0 ✓ सक्रिय
3 V or 5 V Vdss 32-LQFP (7 mm x 7 mm) Package 16 MHz Speed 16 KB (16K x 8) Memory
न्यूनतम ऑर्डर मात्रा: 1 |

R5F21124FP#U0 अवलोकन

The Renesas Electronics R5F21124FP#U0 is a 16-bit R8C/1x/12 series microcontroller with a 16 MHz operating frequency, 16KB of flash program memory, and a 32-pin LQFP package measuring 7 mm by 7 mm. It operates from a 3 V or 5 V supply and is identified as a Pb-Free device. The manufacturer describes this MCU as being built with a high-performance silicon gate CMOS process and using the R8C Tiny Series CPU core. Its architecture combines a compact 16-bit microcontroller with embedded flash memory in a package intended for space-constrained embedded systems.

A microcontroller is a semiconductor device that integrates a CPU core, program memory, data memory, peripheral functions, and I/O into one integrated circuit. The R5F21124FP#U0 belongs to the R8C/12 group of Renesas 16-bit microcontrollers, a family positioned between simple 8-bit controllers and more resource-intensive 32-bit application processors. This device is intended for embedded control, where an application program must handle sensor inputs, actuator outputs, communications, timing, and user-interface functions in one compact component.

The main engineering characteristics visible for this exact MPN are the 16-bit CPU architecture, 16 MHz maximum clock information identified in the product listing, 16KB flash storage, 3 V or 5 V operation, and 32-LQFP packaging. The R5F21124FP#U0 is marked as Pb-Free. Detailed electrical limits, RAM capacity, peripheral channel assignments, clock-tree options, timer resources, communication interfaces, and absolute maximum ratings must be confirmed in the Renesas datasheet before a design is released.

Renesas states that the R8C/12 group is supported for customers that have already adopted these products and recommends the RL78/G14 group for new designs. This lifecycle distinction is important: the R5F21124FP#U0 remains useful for maintenance, continuity, and previously qualified industrial or consumer programs, but engineers should verify roadmap and sourcing conditions before starting a new platform. Existing software, peripheral mapping, and board layouts can make continuity preferable to redesign, provided the product remains suitable for the target application.

Typical uses include compact industrial controllers, sensor-conditioning and monitoring equipment, small appliance controls, communication modules, and legacy embedded systems that require a 16-bit core with embedded flash. The 32-LQFP package provides a conventional quad flat-pack footprint suitable for automated PCB assembly and prototype fabrication. Because the exact pin map and peripheral multiplexing are not reproduced in the product-page search result, board designers should use the manufacturer pin-assignment table when assigning ports, power pins, reset, clock, and programming signals.

This page summarizes the exact R5F21124FP#U0 identity and technical attributes, compares it with verified catalog information, and provides procurement-oriented guidance without presenting unverified competitor substitutions. For current commercial terms, use the Request a Quote form on this page. For a new design, evaluate the recommended RL78/G14 path; for an existing R8C/12 platform, confirm pin compatibility, software support, lifecycle status, and supply continuity through the manufacturer's product documentation.

के लिए ड्रॉप-इन विकल्प R5F21124FP#U0 — समान पैकेज, पिन-टू-पिन संगत। PCB रीवर्क आवश्यक करने वाले भिन्न-पैकेज पार्ट्स शामिल नहीं हैं।

इस उत्पाद के लिए कोई drop-in alternatives उपलब्ध नहीं।

विकल्प अनुरोध करें

R5F21124FP#U0 Maximum Ratings और Electrical Characteristics

Product Type 16-bit single-chip microcontroller
Series R8C/1x/12, R8C Tiny Series
CPU Architecture 16-bit R8C CISC core
अधिकतम क्लॉक फ़्रीक्वेंसी 16 MHz
Flash Program Memory 16 KB (16K x 8)
ऑपरेटिंग सप्लाई वोल्टेज 3 V or 5 V
पैकेज 32-LQFP (7 mm x 7 mm)
पिन काउंट 32 pins
माउंटिंग प्रकार Surface mount
Process Technology High-performance silicon gate CMOS process
Lead-Free Status Pb-Free

R5F21124FP#U0 32-lqfp (7 mm x 7 mm) पिन कॉन्फ़िगरेशन गाइड

R5F21124FP#U0 (32-lqfp (7 mm x 7 mm) पैकेज) के लिए पिन कॉन्फ़िगरेशन। इस डिजिटल IC में GPIO, संचार इंटरफ़ेस (UART, SPI, I2C) और पावर पिन शामिल हैं। वैकल्पिक पिन फ़ंक्शन और कॉन्फ़िगरेशन विकल्पों के लिए निर्माता डेटाशीट देखें। एम्बेडेड सिस्टम डिज़ाइन और PCB लेआउट के लिए आवश्यक।

R5F21124FP#U0 के लिए 32-lqfp (7 mm x 7 mm) पैकेज पिनआउट आरेख

इसके लिए कोई विस्तृत pinout data उपलब्ध नहीं: R5F21124FP#U0.

देखें डेटाशीट पूर्ण पिन कॉन्फ़िगरेशन के लिए।

सामान्य अनुप्रयोग

R5F21124FP#U0 के लिए उपयुक्त है 6 अनुप्रयोगs: Industrial Embedded Control, Sensor Monitoring and Signal Conditioning, Small Appliance Controller, Communication Module, Programmable Control and Automation, Legacy Product Maintenance.

🏭

Industrial Embedded Control

The R5F21124FP#U0 fits compact industrial control modules where a 16-bit R8C CPU, 16 MHz operating frequency, 16KB flash memory, and 3 V or 5 V operation align with an established control platform. It can consolidate sequencing, digital I/O, timing, and communication functions without adding a separate processor package. The 32-LQFP footprint also supports conventional surface-mount assembly. Because the R8C/12 group is intended for customers that already adopted it, this application is strongest where legacy software, qualification, or board continuity provides more value than moving to a new architecture.

🧩

Sensor Monitoring and Signal Conditioning

The R5F21124FP#U0 can serve as the supervisory controller in a sensor-monitoring design that combines digital sensors, status indicators, and local data processing. Its 16-bit architecture is suitable for control loops and protocol handling that require more computational headroom than a basic 8-bit MCU, while 16KB flash provides room for a focused application program. A 3 V or 5 V design can use the MCU to manage sensor enables, sample timing, and status reporting. Verify the exact timer and serial peripheral assignments in the manufacturer pin and peripheral tables before defining the interface.

⚡

Small Appliance Controller

For a compact appliance or equipment controller, the R5F21124FP#U0 provides a 16-bit R8C core operating at 16 MHz with 16KB of embedded flash in a 32-LQFP package. These resources fit a focused controller responsible for user inputs, relays, indicators, timing, and safety-state sequencing. Operating from 3 V or 5 V supports conventional embedded rails. A new appliance platform should compare the R8C/12 MCU against Renesas's recommended RL78/G14 family; an existing platform with validated firmware and mechanics can gain more from retaining the proven controller.

🌐

Communication Module

The R5F21124FP#U0 can act as the host controller in a small communications module when the design depends on established R8C firmware and a modest embedded-code footprint. The 16 MHz R8C core can coordinate framing, device addressing, status handling, and configuration commands, while the 16KB flash stores application and protocol code. The 32-LQFP package provides a practical pin density for a module with power, clock, programming, and communications connections. Confirm the exact serial-interface channels, alternate functions, and electrical levels in the manufacturer documentation before selecting connectors or transceiver components.

🔧

Programmable Control and Automation

The R5F21124FP#U0 is appropriate for programmable automation blocks that require deterministic embedded logic, digital control, and field-updateable flash memory. Its 16-bit architecture and 16 MHz clock are suitable for a dedicated control endpoint, while 16KB flash allows a self-contained firmware image without an external program-memory device. The 32-LQFP package accommodates a practical number of control and communications connections. For a newly designed automation system, perform a complete peripheral and software comparison with the recommended RL78/G14 path; for an established system, compatibility verification can protect schedule and validation effort.

🖥️

Legacy Product Maintenance

The R5F21124FP#U0 is especially relevant to maintenance and continuity programs for products already built around the R8C/12 family. Renesas states that the group is supported for customers that have adopted these products, while recommending RL78/G14 for new designs. This makes the MCU a practical choice when field equipment must retain its firmware image, pin layout, and behavior. A maintenance team should verify exact ordering-code continuity, available package form, programming compatibility, and change-control documentation before using the part for repair or production continuation.

What is the R5F21124FP#U0?
The R5F21124FP#U0 is a Renesas Electronics R8C/1x/12 series 16-bit microcontroller with a 16 MHz clock, 16KB of flash program memory, and a 32-LQFP package. According to the Renesas product page, it uses an R8C Tiny Series CPU core and a high-performance silicon gate CMOS process. The catalog listing identifies operation at 3 V or 5 V and a Pb-Free construction. It is an embedded-control device rather than a general-purpose processor, so firmware, timer, serial-interface, and memory requirements should be checked against the datasheet before design-in.
What are the key specifications of R5F21124FP#U0 that engineers should know?
The key R5F21124FP#U0 specifications are a 16-bit R8C CPU core, 16 MHz operating frequency, 16KB flash memory, 3 V or 5 V operation, and a 32-pin 7 mm by 7 mm LQFP package. The Renesas product page also identifies a silicon gate CMOS process and a Pb-Free device. These values define the part's core resource level and physical integration, but RAM size, timer counts, serial interfaces, pin multiplexing, and electrical limits require the exact manufacturer datasheet for implementation.
What is the operating voltage of R5F21124FP#U0?
The R5F21124FP#U0 operates at 3 V or 5 V according to the Mouser product listing and DigiKey product description. Both supply options place the device in a conventional low-voltage embedded-control environment, but the peripheral configuration, clock settings, and I/O voltage limits must match the selected supply. Use the Renesas datasheet's electrical-characteristics table to confirm input thresholds, output levels, operating-mode current, and decoupling requirements before committing the rail definition.
Where can I find the R5F21124FP#U0 datasheet PDF?
The official Renesas part-details page for R5F21124FP is the best starting point for the R5F21124FP#U0 datasheet, pin information, lifecycle guidance, and related technical documents. A mirrored PDF entry is also available through the R5F21124FP datasheet index, but design decisions should be checked against Renesas material. The manufacturer page specifically states that the R8C/12 group is supported for customers that previously adopted these products and recommends RL78/G14 for new designs.
Where can I find the R5F21124FP#U0 pinout?
The R5F21124FP#U0 pinout is published in the manufacturer's datasheet as a 32-pin LQFP pin assignment and package drawing. The product-page result confirms the 32-LQFP (7 mm by 7 mm) package but does not reproduce individual pin names in its searchable summary. Use the pin-description table to identify supply, ground, reset, clock, programming, port, and peripheral signals, and follow the package orientation shown in the Renesas drawing when assigning the PCB footprint.
Is R5F21124FP#U0 suitable for new designs?
The R5F21124FP#U0 is most suitable when maintaining an established R8C/12 design because Renesas states that this group is supported for customers that have already adopted the products. For a new design, Renesas recommends the RL78/G14 group. Existing firmware, qualified components, and board constraints can justify continued use of R5F21124FP#U0, but a new project should assess lifecycle, tooling, software support, availability, and future product recommendations before layout release.
What can replace R5F21124FP#U0?
A true drop-in replacement for R5F21124FP#U0 must match its 32-LQFP footprint, pin assignments, R8C-compatible instruction and peripheral behavior, 16 MHz operating requirement, memory resources, voltage range, and programming interface. No qualified drop-in substitute is identified in the retrieved manufacturer or catalog records for this exact ordering code. Because microcontroller interchangeability depends on software as well as silicon, use Renesas cross-reference support and validate any candidate with hardware, firmware, timing, and brownout tests.
Is R5F21124FP#U0 the same as R5F21124FP?
R5F21124FP#U0 identifies the ordered Renesas R5F21124FP device with the U0 suffix, while R5F21124FP is the base product designation used in the family documentation. The catalog result maps R5F21124FP#U0 to the R8C/1x/12 16-bit, 16 MHz, 16KB-flash, 32-LQFP device. Confirm ordering-code and packing details against the manufacturer product page before substituting the shorter base name in a purchase order or BOM.
What is the best Renesas equivalent for R5F21124FP#U0?
The closest supported path for an existing R8C/12 platform is to ask Renesas to identify a qualified successor using its official cross-reference support. The product page states that R8C/12 remains supported for customers that already adopted it and recommends RL78/G14 for new designs. A Renesas alternative is not automatically pin- or software-compatible, so the required check is an engineering migration rather than a catalog-name substitution. Verify the footprint, memory map, timers, serial interfaces, voltage levels, and firmware behavior.
Where to buy R5F21124FP#U0 online?
Use the Request a Quote form on this page to request R5F21124FP#U0 availability, lead time, and commercial terms from XAIPART. The manufacturer and catalog records identify the exact device as a 32-LQFP, 16 MHz, 16KB-flash Renesas microcontroller. Because the lifecycle classification for this exact ordering code may differ from the broader R8C/12 family statement, request confirmation of active status, packaging form, and traceability when submitting the inquiry.
What is the price of R5F21124FP#U0?
The current commercial price for R5F21124FP#U0 is shown through the Request a Quote form on this page. The retrieved catalog snippets identify the exact MPN, package, memory, and clock information but do not provide explicit quantity-break prices suitable for extraction. Request a quotation with the required quantity, packing style, delivery location, and target date. This avoids presenting a stale unit price or mixing prices for a different suffix or package variant.
What is the lead time for R5F21124FP#U0?
The current lead time for R5F21124FP#U0 should be requested through the Request a Quote form on this page. The product is listed by catalog providers and linked to an official Renesas product page, but the searchable records do not state a guaranteed lead time or minimum order quantity. For production planning, ask for factory allocation, backorder status, authorized-channel availability, and lot-traceability information at the time of quotation.
Is R5F21124FP#U0 in stock?
Stock for R5F21124FP#U0 is not established by the searchable manufacturer summary alone and should be confirmed through the Request a Quote form on this page. Catalog listings indicate product participation and market availability, but a listing does not guarantee inventory for the exact suffix and packing configuration. Include your required quantity, date code preference, and shipment destination in the request so XAIPART can return the most relevant availability response.
R5F21124FP#U0 vs R5F21124FP - which is better for an existing design?
R5F21124FP#U0 is the complete ordered designation for the device, while R5F21124FP is the family-level base name, so the deciding issue is not performance but whether the ordering code, packing option, grade, and documented behavior match the assembled product. For an existing design, use the exact suffix already qualified in the BOM and verify it against the Renesas ordering-information section. Do not replace the full MPN with the shortened base name without confirming that the suffix does not affect qualification or packing.
When should I choose R5F21124FP#U0 over a newer MCU?
Choose R5F21124FP#U0 over a newer MCU when an established design already depends on its R8C behavior, 16 MHz performance, 16KB flash configuration, 3 V or 5 V operation, 32-LQFP footprint, or proven software ecosystem. Renesas supports the R8C/12 group for customers that have already adopted these products. For a new design without legacy constraints, evaluate the recommended RL78/G14 family, because a modern MCU can offer different resources, tooling, and lifecycle positioning even when the existing R8C part remains electrically sufficient.
Is R5F21124FP#U0 RoHS compliant and Pb-Free?
The R5F21124FP#U0 is identified as Pb-Free in the Mouser catalog listing. Its RoHS, REACH, halogen-free, and conflict-minerals declarations are not stated in the retrieved product summaries and must be confirmed from the current Renesas environmental or material-compliance documentation. Pb-Free describes lead termination or packaging treatment; it should not be treated as a substitute for a formal RoHS declaration. Request the applicable compliance certificate or material statement before a regulated production release.

के लिए इंजीनियरिंग संदर्भ डेटा R5F21124FP#U0 — तुलना, डिज़ाइन मार्गदर्शन और अनुपालन जानकारी।

चयन गाइड

Choose R5F21124FP#U0 when maintaining an established R8C/12 product whose firmware, 32-LQFP board, and 3 V or 5 V electrical environment are already validated. Its 16-bit core, 16 MHz clock, and 16KB flash make it appropriate for compact embedded-control, monitoring, communications, and programmable automation functions. Renesas supports this group for customers that have already adopted it, which can reduce migration and requalification risk for legacy programs. For a new design, however, evaluate the manufacturer's recommended RL78/G14 family because it may offer a more appropriate long-term resource and tooling roadmap. Do not select an arbitrary newer MCU as a drop-in replacement: firmware compatibility, peripheral mapping, memory constraints, pin electrical behavior, clocking, programming, and brownout handling all require validation. Use the Request a Quote form for current commercial terms and confirm the exact ordering code before placing an order.

विकल्पों के साथ तुलना

पैरामीटर यह उत्पाद
Brand Renesas Electronics
Package 32-LQFP (7 mm x 7 mm)
CPU Architecture 16-bit R8C CISC
Maximum Clock Frequency 16 MHz
Flash Program Memory 16 KB (16K x 8)
Operating Supply Voltage 3 V or 5 V
Lead-Free Status Pb-Free
Process Technology High-performance silicon gate CMOS process
New-Design Recommendation RL78/G14 recommended by Renesas; R8C/12 supported for existing adopters

मुख्य विशेषताएँ

  • Established 16-bit R8C control platform (बनामRL78/G14 recommended for new designs)
  • Compact 32-LQFP integration (बनामA larger-footprint redesign candidate)
  • Dual conventional supply options (बनामA fixed-voltage-only MCU option)

डिज़ाइन नोट्स

Assign the PCB footprint from the Renesas 32-LQFP package drawing rather than from a generic 32-pin LQFP symbol. Confirm body size, lead span, pin pitch, exposed-pad status, courtyard, and orientation against the exact R5F21124FP#U0 package. Route programming and reset signals for reliable service access, provide all required supply pins, and follow the manufacturer's recommended decoupling network. A generic footprint can appear mechanically plausible while producing soldering or probe-access problems.

Do not treat R5F21124FP and R5F21124FP#U0 as interchangeable without checking the complete ordering code, grade, packing, and qualification details. The shorter family name omits suffix information that can affect procurement or documentation. For new projects, also follow Renesas's recommendation to evaluate RL78/G14 because R8C/12 support is directed toward customers that already adopted the group. A software migration may require changes even when the new MCU uses a comparable pin count.

Design the 3 V or 5 V supply rail from the electrical-characteristics table, including allowable input range, I/O levels, startup behavior, and current consumption for the selected clock and peripheral configuration. Place input and bypass capacitors close to the supply pins using the values and placement guidance in the manufacturer datasheet. Confirm the reset and clock arrangements before power-up testing; an apparently unstable firmware image can result from supply sequencing or grounding rather than application code.

अनुपालन जानकारी

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
लीड फ्री
Yes
हैलोजन फ्री
Unknown
कॉन्फ्लिक्ट मिनरल्स
Unknown

The Mouser catalog listing identifies the exact MPN as Pb-Free. Formal RoHS, REACH, halogen-free, conflict-minerals, and automotive-qualification statements were not present in the retrieved product summaries and require confirmation from current Renesas compliance documentation.

डेटा सत्यापन तिथि: 2026-11-05 — डेटा XAIPART की कंपोनेंट इंजीनियरिंग टीम द्वारा सत्यापित और क्यूरेट किया गया

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संबंधित कंपोनेंट्स और शब्द

Renesas Electronics R5F21124FP#U0 R5F21124FP R8C/1x/12 R8C Tiny Series RL78/G14 16-bit microcontroller R8C CPU core CISC microcontroller IC embedded controller semiconductor 16 MHz clock 16KB flash memory 3 V operation 5 V operation 32-LQFP LQFP package surface mount silicon gate CMOS Pb-Free RoHS REACH industrial control sensor monitoring
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