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R5F211A2SP#U0 - 16-Bit 20MHz MCU | Renesas Electronics
R5F211A2SP#U0

R5F211A2SP#U0 - 16-Bit 20MHz MCU | Renesas Electronics

Renesas Electronics R5F211A2SP#U0 is a 16-bit R8C/1x/1A microcontroller IC operating at up to 20 MHz, with 8 KB of flash program memory and 512 x 8 bits of RAM in a 20-pin LSSOP package. The device supports 3.3 V and 5 V operation and provides 13 general-purpose I/O ports. According to distributor and manufacturer listings, it uses an internal oscillator and is supplied in tube packaging. These characteristics place it in the microcontroller hierarchy as an embedded-control semiconductor intended for compact industrial, consumer, appliance, and equipment-control systems. An MCU is a semiconductor that integrates a processor core, program memory, data memory, and peripheral I/O into one device. The R8C family uses a 16-bit CISC architecture, combining compact code-oriented processing with dedicated timer, serial, timer, and interrupt resources. R5F211A2SP#U0 is positioned for cost-conscious embedded applications where 8 KB of flash is sufficient for compact control firmware and where a 20 MHz operating rate provides useful headroom for protocol handling, state-machine control, and periodic sensing. The main verified features include 8 KB (8K x 8) flash memory, 512 x 8 bits of RAM, 13 I/O pins, a 20 MHz maximum clock, and a 3/5 V supply capability. The 20-LSSOP body measures approximately 0.173 inch, or 4.40 mm, in width. Its Pb-free status is explicitly identified by Mouser, while the official Renesas product page classifies it as an R8C CPU Core microcontroller in the non-promotion family. The R8C/1x/1A device is suitable for embedded motor and appliance control, digital instrumentation, sensor conditioning, industrial interface modules, and compact consumer controllers. Its 13 available I/O lines can connect digital inputs and outputs to sensors, relays, indicators, and external interface circuits. Designers should account for the limited 8 KB flash when sizing application code and should use a separate programmer or the documented Renesas programming workflow to load and verify firmware. For 3.3 V systems, the listed 3/5 V operating designation is convenient, while the cross-reference data specifies a 2.7 V to 5.5 V supply range. A practical design should preserve adequate decoupling near VDD and VSS, route oscillator-related and reset circuitry according to the manufacturer guidance, and verify every external peripheral against the selected 20-LSSOP footprint. This page consolidates manufacturer and distributor specifications, replacement evidence, application guidance, and design considerations that are more useful than a distributor specification table alone.

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R5F211A3SP#U0 - 16-Bit R8C/1A MCU, 20MHz, 12KB Flash, 20-LSSOP | Renesas
R5F211A3SP#U0

R5F211A3SP#U0 - 16-Bit R8C/1A MCU, 20MHz, 12KB Flash, 20-LSSOP | Renesas

The Renesas Electronics R5F211A3SP#U0 is a 16-bit single-chip microcomputer built on the R8C/Tiny CPU core, operating at up to 20 MHz with 12 KB (12K x 8) of flash program memory and 768 bytes of internal RAM, housed in a 20-pin LSSOP (PLSP0020JB-A) molded-plastic package. A microcontroller is a self-contained computing element that integrates a CPU core, program memory, data memory, analog and digital peripherals, and clocking on a single die. The R8C family from Renesas combines a 16-bit CISC instruction set with very low power consumption and a small instruction footprint, a combination popular in cost-sensitive embedded control products. R8C/1A group parts sit at the entry point of that family: they omit data flash, which keeps cost and part count down for designs whose configuration data is programmed once at build time. Key features include a 20 MHz maximum operating frequency, a 4-channel 10-bit A/D converter with 8-bit and 10-bit selectable resolution, and a peripheral set covering I2C, SIO (serial I/O), SSU (synchronous serial), and UART/USART channels. The operating supply range is 2.7 V to 5.5 V, allowing the same device to run from a 3.3 V or 5 V rail. The device is manufactured on a high-performance silicon gate CMOS process and is offered in a lead-free 20-pin LSSOP package. Internally, the R8C/Tiny core uses a compact 16-bit instruction architecture designed for high instruction efficiency, so typical control tasks need far fewer clock cycles than an 8-bit machine would require. A precision internal oscillator and external crystal support let the designer trade cost and accuracy: a 20 MHz crystal gives deterministic timing for serial links and timers, while the internal clock saves board area when tolerance is acceptable. Typical applications include industrial control and instrumentation panels, small motor and stepper drive controllers, sensor-hub and building-automation nodes, LED lighting controllers, battery-powered handheld equipment, and low-cost serial interface bridges that need a 10-bit ADC for analog front-end monitoring. When designing around this part, plan the 20-pin LSSOP footprint carefully: the analog supply and ground pins, oscillator pins, and the four ADC channels are all routed to specific pins, and the low pin count leaves limited room for dedicated debug or programming headers. Use the pin assignment table in the manufacturer datasheet when assigning PCB tracks and keep analog traces away from the oscillator and serial lines. This page brings together the manufacturer part details, package and ordering information, verified distributor availability data, and a parameter-by-parameter comparison with same-family R8C/1A devices so you can identify the exact drop-in choice for an existing design without redrawing the PCB.

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R5F211A4NP#U0 - 16-Bit R8C MCU | Renesas Electronics
R5F211A4NP#U0

R5F211A4NP#U0 - 16-Bit R8C MCU | Renesas Electronics

The Renesas Electronics R5F211A4NP#U0 is a 16-bit microcontroller built around the R8C CPU core, with a 20 MHz operating frequency, 16 KB of flash program memory, a 3 V to 5 V supply range, and a 28-pin HWQFN package. It belongs to the R8C/1A microcontroller family and is identified by Renesas as a non-promotion product. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, and peripheral functions into one device. The R8C core provides the central processing capability, while flash memory stores the application program. In the broader component hierarchy, this device is a microcontroller, an embedded processing IC, and a semiconductor designed for compact control and monitoring systems. The R5F211A4NP#U0 combines a 16-bit CPU architecture with 16 KB of flash memory in a surface-mount package. Its stated 3 V to 5 V operating range supports designs operating across common low-voltage logic rails. The 28-HWQFN package also includes an exposed-pad construction, providing a compact footprint and a designated thermal path when the PCB is designed for heat dissipation. The device is marked as Pb-Free. The R8C/1A family is suitable for embedded control tasks requiring a modest code-memory capacity and broad I/O integration. Its 16 KB flash configuration is appropriate for compact firmware, state machines, peripheral controllers, and application-specific monitoring functions. The manufacturer datasheet remains the controlling reference for clock, peripheral, electrical-limit, and pin-assignment details needed during schematic capture and PCB implementation. Typical design opportunities include embedded control panels, sensor-conditioning systems, industrial monitoring modules, consumer peripherals, and compact appliance controllers. In each application, firmware size, interrupt behavior, peripheral availability, supply voltage, and pin compatibility must be confirmed against the manufacturer documentation before schematic release. For PCB layout, place the exposed-pad connection and decoupling structure exactly as shown in the manufacturer's package and application guidance. This page combines the manufacturer product identity, package information, memory configuration, and direct replacement guidance to support component selection and hardware planning.

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R5F211A4SP#U0 - 16-Bit 20MHz R8C/1A 16KB Flash MCU | Renesas | 20-LSSOP
R5F211A4SP#U0

R5F211A4SP#U0 - 16-Bit 20MHz R8C/1A 16KB Flash MCU | Renesas | 20-LSSOP

The Renesas Electronics R5F211A4SP#U0 is a 16-bit single-chip microcomputer in the R8C/1A group, built on the R8C/Tiny Series CPU core, operating up to 20 MHz with 16 KB (16K x 8) program flash and 1 KB (1K x 8) RAM in a 20-pin molded-plastic LSSOP package. It provides 13 general-purpose I/O ports, runs from a 3/5 V supply, uses an internal oscillator, and ships in tube packaging as a lead-free (Pb-free) device. A single-chip microcomputer, or MCU, is a complete computing element that integrates a CPU core, program memory, data memory, I/O ports, timers and clock circuitry on one die. An MCU sits in the hierarchy above a general microprocessor but below a microcomputer system: MCU -> microcomputer -> embedded controller -> semiconductor. Renesas positions the R8C/1A group for designs that have already adopted it and recommends the RL78/G12 group for new projects, yet the R8C remains a proven fit for cost-sensitive, low-power embedded control products. Key features of the R5F211A4SP include a 20 MHz maximum operating frequency, 16 KB of flash program memory, 1 KB of internal RAM, 13 I/O lines and a 3/5 V operating supply. The R8C/Tiny core delivers 16-bit instruction execution with an 8-bit-oriented internal data path, which keeps code density high while retaining a small die and low system cost. The device is fabricated on a high-performance silicon gate CMOS process and is packaged as a 20-pin molded-plastic LSSOP. The documented difference between the R8C/1A group and the R8C/1B group is the presence or absence of data flash ROM; the R5F211A4SP sits in the 1A group, which retains data flash for parameter storage and calibration data. Typical applications include small appliance controllers, sensor and meter front-ends, industrial sensor modules, motor and stepper sequencing, simple HMI panels and low-power battery-operated instruments where a 20-pin footprint, 16 KB of flash and 13 I/O pins match the bill of materials almost exactly. When designing around this part, verify the internal oscillator tolerance and the peripheral allocation against the target application, and confirm the 20-LSSOP land pattern on your PCB. Because the R8C/1A family is maintained for existing adopters rather than new platforms, confirm long-term availability and consider the RL78/G12 family for designs started from scratch. This page brings together distributor availability, same-family drop-in replacements, a parameter-by-parameter comparison and practical layout guidance so you can evaluate the R5F211A4SP#U0 against alternatives without pulling together multiple documents.

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R5F211B1DD#U0 - 16-Bit 20MHz MCU with 4KB Flash | Renesas
R5F211B1DD#U0

R5F211B1DD#U0 - 16-Bit 20MHz MCU with 4KB Flash | Renesas

The Renesas Electronics R5F211B1DD#U0 is a 16-bit R8C/1B microcontroller with 4KB of programmable Flash, 384 bytes of RAM, 13 I/O ports, and a 20MHz maximum operating frequency, supplied in a 20-pin SDIP package. The device operates from a 2.7V to 5.5V supply and uses an internal oscillator. Its 4K x 8 program memory and 16-bit R8C CPU core place it in the MCU > microcontroller > embedded processor > semiconductor hierarchy. A microcontroller is a programmable embedded-control IC that combines a CPU core, memory, I/O, timers, serial interfaces, and other peripherals on one device. The R8C/1B family is based on the Renesas R8C/Tiny Series architecture and is fabricated using a high-performance silicon-gate CMOS process. This architecture supports compact control systems in which program code and data are stored locally rather than in an external processor. Key device characteristics include 4KB of Flash program memory, 384 x 8 bits of RAM, 13 general-purpose I/O lines, and operation up to 20MHz. The internal oscillator removes the need for an external clock source in suitable designs, while the 2.7V to 5.5V operating range supports both 3.3V and 5V embedded systems. The 20-pin SDIP package provides through-hole accessibility for prototyping, education, and legacy equipment. The R8C/1B Group is described by Renesas as a non-promotion family, and Renesas recommends the RL78/G12 Group for new designs. This makes the R5F211B1DD#U0 most appropriate for maintenance of existing R8C/1B equipment, particularly where software, peripheral configuration, and the existing 20-pin SDIP footprint must be preserved. New products should evaluate the recommended RL78/G12 family before committing to this legacy MCU. Typical uses include industrial control modules, instrument-control boards, embedded teaching systems, and legacy automation products. A replacement must match the original device's pinout, clock behavior, memory map, peripheral functions, electrical limits, and firmware configuration. Matching only the R8C family name is insufficient for a drop-in replacement. The principal design consideration is that this is a legacy, non-promotion MCU. Before beginning a redesign, confirm lifecycle expectations, firmware portability, available inventory, and whether the required board revision can accommodate a newer package or recommended MCU family. This page consolidates the verified specifications, commercial availability, selection guidance, and source links for engineers evaluating maintenance or replacement decisions.

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R5F211B1SP#U0 - 16-Bit 20MHz R8C/1B MCU, 4KB Flash, 20-LSSOP | Renesas
R5F211B1SP#U0

R5F211B1SP#U0 - 16-Bit 20MHz R8C/1B MCU, 4KB Flash, 20-LSSOP | Renesas

The Renesas Electronics R5F211B1SP#U0 is a 16-bit single-chip microcomputer built on the R8C/Tiny Series CPU core, operating at up to 20 MHz with 4 KB (4K x 8) of on-chip FLASH program memory and 384 bytes of SRAM data memory. It is packaged in a compact 20-pin molded-plastic LSSOP (PLP, 20P2F-A, 4.4 mm body width) and operates from a 2.7 V to 5.5 V supply across a -20 °C to +85 °C temperature range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, timers, serial interfaces, analog converters and I/O ports onto one die. In the supply-chain hierarchy, the R5F211B1SP#U0 sits as an embedded microcontroller within integrated circuits, and within Renesas' portfolio it belongs to the R8C family, R8C/1x series, 1B group, built on a high-performance silicon gate CMOS process. Renesas positions the R8C/1B group for customers already adopted to these products and recommends the RL78/G12 group for new designs. Key features visible in the ordering information include a 10-bit A/D converter, on-chip DataFlash support, and a watchdog timer timeout option, making the device a self-contained control node rather than a pure logic device. The 2.7 V to 5.5 V operating range allows the same design to work from a 3 V lithium cell or from a regulated 5 V rail, and the -20 °C to +85 °C grade suits cost-constrained industrial and consumer equipment. Because the R8C core is a compact 16-bit architecture with efficient instruction set and dedicated multiplier hardware for 16-bit operations, the R5F211B1SP#U0 delivers more arithmetic throughput per clock than 8-bit parts while keeping BOM cost low. Flash memory permits in-field reprogramming, so field updates can be handled without socketed parts. Typical applications include small motor and relay control boards, simple serial-interface sensor hubs, industrial keypads and HMI panels, LED signage and lighting controllers, battery-powered instrumentation, and compact consumer appliances where a full application processor would be excessive. When designing around this device, keep the operating voltage inside 2.7 V to 5.5 V with margin for transient dips, and confirm that the LSSOP-20 land pattern is available on the PCB supplier's library since the 4.4 mm body width differs from standard SSOP-20. Decoupling and oscillator placement must follow the pin-assignment table in the manufacturer datasheet. This page consolidates the orderable part information, drop-in alternatives in the same 20-LSSOP footprint, a parameter-by-parameter comparison, and practical layout and firmware notes that are not collected in one place on the manufacturer datasheet.

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R5F211B1SP#W4 - 16-Bit 20MHz R8C MCU | Renesas
R5F211B1SP#W4

R5F211B1SP#W4 - 16-Bit 20MHz R8C MCU | Renesas

Renesas R5F211B1SP#W4 is a 16-bit R8C/1B microcontroller with a 20 MHz operating speed, 4 KB (4K x 8) flash program memory, 384 x 8 RAM, and 13 I/O ports in a 20-LSSOP package. It operates from a 3 V or 5 V supply and uses an internal oscillator. A microcontroller is a programmable semiconductor that integrates a CPU core, nonvolatile program memory, volatile data memory, and peripheral I/O onto one device. The Renesas R8C family belongs to the embedded-controller hierarchy of 8-bit and 16-bit microcontrollers, combining compact code execution with dedicated interfaces for embedded control, data acquisition, and simple actuator systems. R8C devices are commonly programmed as compact embedded platforms rather than general-purpose desktop processors. The R5F211B1SP#W4 combines a 16-bit R8C CPU core with 4 KB of flash memory and 384 x 8 bits of RAM. Its 20 MHz maximum speed supports efficient control-loop and peripheral operation, while 13 I/O pins provide interfaces for digital inputs, outputs, and external signals. The 20-LSSOP surface-mount package is suitable for compact industrial, instrumentation, consumer, and appliance assemblies where a moderate pin count and compact footprint are useful. The 3 V or 5 V operating range allows the device to be used with common embedded supply rails. Its internal oscillator reduces the number of external frequency-setting components needed for basic clocked operation. Flash program memory retains firmware without a separate external memory device, while the integrated RAM provides working storage for variables, stack operations, and time-sensitive control functions. Typical uses include compact sensor controllers, industrial interface modules, motor-control peripherals, instrument-control panels, and embedded appliance functions. Designers can use the available I/O to connect switches, indicators, sensors, communications peripherals, and discrete actuators. The combination of 20 MHz processing, 13 I/O, and a 20-pin package makes the device appropriate for embedded products that need more control capability than a simple logic device but do not require a large pin count or high external-memory capacity. PCB implementation should follow the package drawing and pin-assignment information in the manufacturer datasheet, including the exposed-pad or thermal requirements applicable to the exact package variant. Firmware and peripheral configuration should also be checked against the current Renesas product documentation before production release, particularly for supply-voltage limits, oscillator settings, and port multiplexing. This page organizes the confirmed R5F211B1SP#W4 electrical characteristics, package information, application guidance, comparison considerations, and design notes into a buyer-focused engineering reference. It also distinguishes confirmed device data from specifications that require direct confirmation in the manufacturer datasheet before schematic release or volume production.

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R5F211B2NP#U0 - 16-Bit 20MHz R8C MCU | Renesas Electronics
R5F211B2NP#U0

R5F211B2NP#U0 - 16-Bit 20MHz R8C MCU | Renesas Electronics

Renesas Electronics R5F211B2NP#U0 is a 16-bit R8C/1B-series microcontroller with a 20 MHz operating frequency, 8 KB of flash program memory, and a 28-pin HWQFN package measuring 5 mm by 5 mm. The device operates from 3.3 V or 5 V and is supplied in a tube. Its R8C CPU core combines a 16-bit architecture with an 8 KB flash memory organization, making the MCU suitable for compact embedded control systems that require deterministic peripheral operation and a low-pin-count surface-mount footprint. An R8C microcontroller is a 16-bit embedded processing device within the broader semiconductor and microcontroller hierarchy. It integrates CPU execution, flash program memory, data memory, timers, serial interfaces, analog functions, and interrupt-controlled I/O into one package. The R8C core is designed around efficient C-language instruction execution, allowing compact firmware to control motors, sensors, communications links, and user-interface peripherals without requiring a separate processor. Key characteristics include a 16-bit R8C CPU core, a maximum listed clock frequency of 20 MHz, and 8 KB of flash memory organized as 8K by 8 bits. The controller supports 3.3 V and 5 V operation and is offered in a Pb-free 28-pin HWQFN package. These parameters position it for embedded industrial controls, compact instruments, consumer peripherals, and low-to-medium-complexity control products where a small package and established R8C software ecosystem are important. Technically, the device belongs to the R8C/1B group and uses a high-performance silicon-gate CMOS process. Its flash-based program memory supports in-system firmware storage, while the R8C CPU core provides 16-bit processing without the pin count of larger general-purpose packages. Peripheral requirements and detailed electrical limits should be confirmed against the pin assignment table and electrical characteristics in the R8C/1A, R8C/1B Group Datasheet before a production design is released. Typical applications include compact motor controllers, temperature-measurement instruments, programmable control panels, sensor-interface nodes, and communication modules. The 20 MHz clock is suitable for time-based control tasks, and the 8 KB flash budget favors focused firmware with concise interrupt handlers and compact application logic. Designers should allocate flash for boot, communication, and application routines without assuming capacity equivalent to larger general-purpose MCUs. The most important layout consideration is the 5 mm by 5 mm HWQFN land pattern. Follow the manufacturer pin-assignment figure for the PWQN0028KA-B package, expose the thermal pad according to the recommended land pattern, and route sensitive analog or timing signals away from switching nodes. Confirm operating voltage, peripheral availability, and startup behavior against the device-specific datasheet before adding external components. This product summary consolidates the verified R8C/1B identity, memory capacity, clock rate, supply options, package details, sourcing information, and same-package family comparison into a design-focused reference. The manufacturer datasheet remains the controlling document for pinout, electrical limits, timing, peripheral functions, and programming details.

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R5F211B2SP#U0 - 16-Bit 20MHz 8KB MCU | Renesas Electronics
R5F211B2SP#U0

R5F211B2SP#U0 - 16-Bit 20MHz 8KB MCU | Renesas Electronics

Renesas Electronics R5F211B2SP#U0 is a 16-bit R8C/1B microcontroller IC operating at up to 20 MHz, with 8 KB of flash memory and a 20-LSSOP package. The device operates from 2.7 V to 5.5 V, supports 3 V and 5 V supply designs, and is specified over a -20°C to +85°C temperature range. Its 8K x 8 flash organization supports compact embedded control code while the 16-bit R8C CPU core provides a practical balance between processing capability and resource efficiency. A microcontroller is an integrated semiconductor containing a processor core, program memory, data memory, timers, serial interfaces, and I/O in one package. Within the embedded-control hierarchy, this part belongs to the R8C family and the R8C/1B group. The R5F211B2SP#U0 is intended for compact control systems that need deterministic low-power operation, modest on-chip program storage, and a low-pin-count surface-mount footprint. The verified part data identifies a 20 MHz operating speed, 8 KB flash memory, 2.7 V to 5.5 V supply range, and a -20°C to +85°C operating-temperature range. Additional listed features include data flash, a watchdog timer identified as WDTO, and a Pb-free 20-LSSOP package. These characteristics make the device relevant to industrial control, metering, embedded automation, motor-control, and low-power board designs. The R8C architecture is suited to compact embedded applications in which a 16-bit instruction set and dedicated peripherals can replace a larger general-purpose controller. Its 20 MHz maximum clock rate supports responsive control tasks, while 8 KB of embedded flash allows firmware, constants, and application logic to remain on the same device. Operating across both 3 V and 5 V system rails simplifies adoption in mixed-voltage embedded equipment, provided each external peripheral and I/O signal remains within the device's electrical limits. Typical uses include compact motor controllers, industrial sensing modules, utility metering, appliance control panels, and low-power monitoring equipment. The small 20-LSSOP package is useful for space-constrained boards, although exposed-pad thermal behavior, pin multiplexing, and supply bypassing should be evaluated against the exact board layout. The WDTO feature supports supervisory control of firmware execution, while data flash can retain parameters or calibration information when the application requires nonvolatile local storage. Designers should follow the manufacturer datasheet for the complete pin assignment, peripheral configuration, electrical characteristics, and programming interface. Decoupling capacitors should be placed close to the supply pins, unused inputs should be configured to avoid unintended current, and firmware should include watchdog-service and reset-handling logic. Because public results confirm the package and functional identity but do not expose a complete verified pin map, this page does not infer individual pin names. This page consolidates verified distributor inventory information, manufacturer identification, family-level alternatives, and practical selection guidance. It adds comparison context and engineering cautions without inventing missing electrical limits, pin functions, or distributor price tiers, making it easier for engineers to determine whether the R5F211B2SP#U0 fits an existing 20-LSSOP design.

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R5F211B3NP#U0 - 16-Bit 3/5V 12KB Flash MCU | Renesas | 28-HWQFN
R5F211B3NP#U0

R5F211B3NP#U0 - 16-Bit 3/5V 12KB Flash MCU | Renesas | 28-HWQFN

The Renesas Electronics R5F211B3NP#U0 is a 16-bit microcontroller with an R8C CPU core, designed for embedded control applications operating from a 3 V or 5 V supply. The device contains 12 KB of flash memory and is offered in a 28-pin HWQFN package. Its 16-bit architecture and integrated flash program memory place it in the general-purpose embedded microcontroller category, where a compact package and low-voltage operation are useful for embedded systems, industrial equipment, consumer devices, and control panels. The R8C core is designed for efficient CISC-style instruction execution in compact embedded systems. The R5F211B3NP#U0 combines a 16-bit CPU core with 12 KB of on-chip flash memory in a 28-HWQFN package. The product family is associated with a 3/5 V operating environment, making it suitable for systems that use either a 3.3 V or 5 V supply. The package reduces board area compared with larger leaded microcontroller packages while supporting a high-density pin arrangement. Key product characteristics include the 16-bit R8C CPU core, 12 KB flash memory, 3/5 V supply capability, and 28-HWQFN package construction. These specifications make the R5F211B3NP#U0 appropriate for compact embedded controllers that require more computational width than an 8-bit MCU while using a small surface-mount footprint. The integrated flash memory allows firmware to be stored directly on the controller, simplifying the hardware arrangement compared with external program-memory designs. The device is intended for applications that need reliable embedded control, local logic, peripheral interaction, and embedded firmware execution. Typical uses include industrial control modules, instrumentation, appliance controllers, small motor-control boards, sensor-interface equipment, and compact embedded consumer products. The 28-HWQFN package is particularly useful when board area is constrained but a multilayer PCB and appropriate manufacturing processes are available. When designing around the R5F211B3NP#U0, use the manufacturer datasheet for the exact pin descriptions, electrical limits, clock configuration, peripheral assignments, and programming procedure. Decoupling, exposed-pad thermal management, programming access, and unused-pin handling should follow the package-specific recommendations. Verify the selected memory variant, supply requirements, and timing characteristics against the final system operating conditions before releasing the PCB.

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R5F211B3SP#U0 16-Bit 20MHz 12KB Flash MCU | Renesas
R5F211B3SP#U0

R5F211B3SP#U0 16-Bit 20MHz 12KB Flash MCU | Renesas

The Renesas Electronics R5F211B3SP#U0 is a 16-bit R8C/1B microcontroller operating at up to 20 MHz, with 12 KB of flash program memory and a 20-LSSOP package. It is designed for embedded control applications requiring a compact microcontroller, mixed 3 V and 5 V operation, and programmable digital control in a small surface-mount footprint. A microcontroller is a semiconductor device that integrates a CPU core, program memory, data memory, peripheral modules, and I/O into one integrated circuit. The R8C family combines a 16-bit CISC-based R8C CPU core with embedded flash and data-flash capabilities. Renesas positions the R5F211B3SP#U0 within the R8C/1B group for compact industrial, consumer, and instrumentation designs. Key features include a 16-bit CPU core, 20 MHz maximum operating frequency, 12 KB flash memory, and operation from a 3 V to 5 V supply range. The device is supplied in a 20-LSSOP package, allowing a relatively compact board footprint. Its integrated program and data-flash architecture simplifies firmware storage and supports embedded control functions without requiring separate external memory. The R8C/1B architecture is suited to applications requiring deterministic embedded behavior, timer-based sequencing, serial communications, and general-purpose I/O control. Because the device combines flash memory with a compact package and a 20 MHz clock, it can serve as the primary controller in small appliances, sensor modules, instrumentation, and industrial control boards. Typical uses include motor and actuator control, temperature or process monitoring, digital control panels, sensor interfaces, and compact consumer equipment. The 20-LSSOP package is particularly useful where component height and board area are constrained but a 20-pin interface remains sufficient for the required control and communication signals. When laying out a board, follow the manufacturer pin-assignment and recommended-circuit diagrams in the R5F211B3SP datasheet. Pay particular attention to decoupling, programming interface access, reset behavior, and the unused I/O pins. The 20-LSSOP footprint must be checked against the package drawing before the PCB footprint is released. This product page combines the manufacturer ordering information, distributor specifications, package details, and practical design guidance to help engineers evaluate the R5F211B3SP#U0 for an embedded-control design. Request a quote for current availability, lead time, and commercial terms through the form on this page.

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R5F211B4NP#U0 - 16-Bit 20MHz R8C MCU | Renesas
R5F211B4NP#U0

R5F211B4NP#U0 - 16-Bit 20MHz R8C MCU | Renesas

Renesas Electronics R5F211B4NP#U0 is a 16-bit R8C/1B microcontroller operating at up to 20 MHz, with 16 KB of flash program memory and a 28-HWQFN 5 x 5 mm package. It combines the R8C/Tiny CPU core with integrated microcontroller resources for compact embedded control, and the exposed-pad package supports improved thermal performance when the PCB provides a suitable ground and thermal layout. A microcontroller is a programmable semiconductor that integrates a CPU core, flash memory, RAM, timers, serial interfaces, analog peripherals, and general-purpose I/O into one device. The R8C family belongs to Renesas' 16-bit microcontroller portfolio and uses the R8C/Tiny architecture. This device is designed for embedded products requiring deterministic control, low-power operation, and a compact surface-mount footprint. The R5F211B4NP#U0 provides 16 KB of flash memory for firmware and 20 MHz operating speed for control-loop processing. Its 28-HWQFN package limits board area to 5 x 5 mm while exposing a thermal pad for heat spreading. The manufacturer identifies this orderable variant as non-promotion and recommends the RL78/G12 group for new designs, making lifecycle confirmation especially important for production planning. The R8C/Tiny CPU core is designed for instruction-efficient control applications. Program memory retains the firmware image, while on-chip RAM supports working variables, stack operations, and peripheral data handling. Depending on the exact board configuration, the device can support external sensing and actuation through its I/O, timer, and communication resources, reducing the need for separate interface components. Typical uses include compact industrial controllers, instrumentation, motor-control support circuits, consumer-device control modules, and low-power embedded systems. The small QFN-style package is particularly useful where PCB area is constrained and where a land pattern compatible with a 28-lead QFN layout can be implemented. Programming and firmware development require the appropriate Renesas R8C toolchain and a compatible programming interface. For a new PCB, verify the complete pin description, exposed-pad connection, programming interface, clock configuration, and peripheral mapping in the manufacturer datasheet before committing the layout. Confirm the recommended operating voltage and temperature limits for the exact suffix. Because the manufacturer marks this variant as non-promotion, use the Request a Quote form on this page to confirm availability, lifecycle status, and suitable alternatives for production. This product page organizes the verified R8C/1B identity, 16-bit CPU architecture, 20 MHz performance, 16 KB flash memory, package information, lifecycle position, and replacement considerations into one engineering reference. It also distinguishes verified device attributes from details that still require confirmation from the exact-ordering datasheet, helping engineers assess fit before schematic capture or PCB release.

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R5F211B4SP#U0 - 16-Bit R8C/1B MCU, 20MHz, 16KB Flash | Renesas
R5F211B4SP#U0

R5F211B4SP#U0 - 16-Bit R8C/1B MCU, 20MHz, 16KB Flash | Renesas

The Renesas Electronics R5F211B4SP#U0 is a 16-bit single-chip microcomputer built on the high-performance silicon gate CMOS process, embedding an R8C/Tiny-series CPU core that executes at up to 20 MHz, with 16 KB (16K x 8) of on-chip FLASH program memory, 1 KB (1K x 8) of RAM and a 4-channel 10-bit A/D converter, all housed in a 20-pin molded-plastic LSSOP package. It operates from a 3 V / 5 V supply across an internal-oscillator clock architecture and a 1 MB address space. A microcontroller (MCU) is a single integrated circuit that merges a CPU core, program and data memory, peripheral timers, serial interfaces, analog conversion and general-purpose I/O onto one die. The MCU sits in the hierarchy below embedded processor, below microprocessor, below semiconductor; within that family the R8C/Tiny line is Renesas' compact 16-bit entry-level core, delivering roughly three times the code density of an 8-bit architecture while remaining simple enough for cost-sensitive, low-power embedded control. The R8C/1B Group is the small-footprint member of that family. Key features of this device include a 16-bit word-length CPU core with a 1 MB address space, 13 general-purpose I/O pins, a 4-channel 10-bit A/D converter for analog sensor and potentiometer inputs, internal oscillator operation with no external crystal requirement, and a Pb-Free 20-LSSOP package that measures only 0.173 inch (4.40 mm) in width. Supply operation at both 3 V and 5 V allows the same board design to serve low-voltage battery products and legacy 5 V industrial control panels. Technically the part is a single-chip microcomputer rather than a mask-programmed fixed-function controller, so application firmware lives in serial-programmable FLASH and can be updated over the serial programming interface. The 20-LSSOP footprint keeps boards compact while exposing the full set of timer, serial, ADC and interrupt resources through 13 I/O pins, and the low 3 V operating point supports energy-conscious battery-powered peripherals. Typical applications include industrial control and sensor-interface modules, appliance and HVAC control panels, low-cost consumer peripherals, small motor and stepper drive controllers, simple data loggers, and legacy industrial equipment that must be serviced with a modern low-power MCU while retaining a familiar software model. A key design consideration is that the R8C/1B Group is a non-promotion family: Renesas states that the R8C/1B Group is supported only for customers who have already adopted these products, and that the RL78/G12 Group is recommended for new designs. Existing R8C platforms can therefore be maintained and cloned with confidence, but new greenfield projects should evaluate the recommended successor family. This page consolidates distributor pricing, a drop-in replacement analysis within the R8C/1B Group, comparison tables and practical design notes that are not assembled in one place in the manufacturer datasheet, giving engineers a single reference for maintaining or extending an existing R8C design.

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R5F211B4SP#W4 - 16KB Flash 16-Bit R8C MCU | Renesas | 20MHz
R5F211B4SP#W4

R5F211B4SP#W4 - 16KB Flash 16-Bit R8C MCU | Renesas | 20MHz

The Renesas Electronics R5F211B4SP#W4 is a 16-bit single-chip microcontroller belonging to the R8C/1B group, integrating 16 KB of flash program memory and an R8C/Tiny CPU core, and is housed in a 20-pin molded-plastic LSSOP package. It operates at 20 MHz from a 3 V/5 V supply, embeds 1 KB of RAM and 4 KB of data flash, and is fabricated using high-performance silicon-gate CMOS process technology. The part is supplied in tape-and-reel (W4) packaging and is targeted at cost-sensitive embedded control applications. What is an R8C microcontroller? The R8C is a family of 16-bit CISC microcontrollers from Renesas built around the R8C/Tiny CPU core, occupying a middle ground between 8-bit MCUs (such as the 78K0 or PIC16) and 32-bit devices. R8C parts share a common instruction set with the higher-end M16C family, support up to 16-bit internal data paths, and feature a compact instruction set that delivers high code density. They are widely used in consumer appliances, sensor-conditioning nodes, motor sub-controls, and human-interface subsystems where deterministic interrupt response and small footprint are required. Key features include 16 KB on-chip flash, 1024 bytes of RAM, 4096 bytes of data flash for non-volatile parameter storage, 12 on-chip I/O pins (shared with peripherals), one 16-bit timer, multiple 8-bit timers, a 10-bit A/D converter, UART and I2C serial interfaces, and a watchdog timer. The R8C/1B group also offers low-power modes including Halt, Stop, and Wait, along with voltage-detector reset and clock-prescaler options for power-conscious designs. The device is implemented in CMOS with a built-in oscillator (no external crystal required in many applications) and supports on-chip debug via a single-wire interface. Operating voltage is 3.0 V to 5.5 V and the operating temperature range covers -20 °C to +85 °C for the standard commercial grade. Typical applications include small appliance control, IR remote receivers, sensor signal-conditioning front ends, battery chargers, LED lighting controllers, and consumer human-interface devices. The 20-pin LSSOP footprint and minimal external BOM make it attractive as a drop-in upgrade for older 8-bit designs that need 16-bit arithmetic headroom. When designing with this part, place decoupling capacitors within 5 mm of VCC/AVCC and provide a solid ground pour under the device. For applications needing higher noise immunity or CAN connectivity, consider the larger R8C/2x or RL78/G12 families that Renesas recommends for new designs. This page consolidates distributor stock data, parametric compatibility notes, and cross-reference alternatives for the R5F211B4SP#W4 — information not aggregated in the bare manufacturer datasheet.

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R5F21216JFP - 16-Bit 20MHz 32KB MCU | Renesas
R5F21216JFP

R5F21216JFP - 16-Bit 20MHz 32KB MCU | Renesas

Renesas Electronics R5F21216JFP is a 16-bit R8C/2x/21-series microcontroller operating at up to 20MHz, with 32KB flash memory and 2KB of additional RAM in a 48-pin LQFP package. It is designed for 3.3V and 5V embedded systems and combines a compact R8C CISC core with integrated memory and a 10-bit ADC. The R5C family is a group of Renesas microcontrollers built around the R8C CPU core, a CISC-style processor architecture intended for efficient control-oriented embedded applications. The R5F21216JFP belongs to the R8C/2x/21 group and is packaged in a 48-pin plastic molded LQFP, making it suitable for designs requiring a conventional surface-mount microcontroller footprint. Key verified features include a 20MHz operating speed, 32KB of flash memory organized as 32K x 8, 2KB of RAM, 3.3V and 5V operation, a 10-bit ADC, and an operating temperature range from -40°C to +85°C. The R8C CPU core uses silicon-gate CMOS technology and supports efficient instruction execution for embedded control, measurement, and communication-oriented products. The device is suitable for industrial control equipment, sensor interfaces, instrument panels, motor-control subsystems, appliance controllers, and compact embedded products. Its 3.3V and 5V compatibility supports both legacy 5V peripherals and modern low-voltage digital systems. The 48-LQFP package provides a higher pin count than small 32-pin MCUs, allowing more peripheral connectivity and easier access to analog, communication, and general-purpose I/O functions. When designing a replacement or new board, verify the complete pinout, peripheral configuration, clock requirements, memory organization, and electrical limits against the manufacturer datasheet. The part number and package suffix matter: R5F21216JFP#U1 and R5F21216JFP#U0 may have different ordering or qualification information. Verify current lifecycle and distributor availability before committing to production.

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R5F21217JFP - 16-Bit 20MHz 48KB MCU | Renesas | Embedded Control
R5F21217JFP

R5F21217JFP - 16-Bit 20MHz 48KB MCU | Renesas | Embedded Control

The Renesas Electronics R5F21217JFP is a 16-bit R8C/2x/21-series microcontroller operating at up to 20 MHz with 48 KB of flash memory in a 48-pin 7 x 7 mm LQFP package. The verified distributor data identifies the device as an R8C microcontroller with 48K x 8 flash organization, while Mouser identifies a 3 V to 5 V supply range and a -40°C to +85°C temperature range. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, and peripherals into one component. This MCU belongs to the broader hierarchy of embedded controllers, which also includes general-purpose MCUs, real-time controllers, and application-specific processors. Its 16-bit R8C CPU core and high instruction efficiency make it suitable for compact embedded-control systems where deterministic control, peripheral integration, and low board complexity matter. The primary verified features are a 20 MHz maximum clock, 48 KB flash memory, 16-bit architecture, R8C/2x/21 family membership, and a 48-pin plastic molded LQFP package. The Renesas product page states that the device uses a high-performance silicon-gate CMOS process and has a 1 MB address space. The distributor record also lists 48+2K memory, indicating 48 KB of flash plus an additional 2 KB resource, although the exact memory map is not specified in the supplied data. Typical application areas include industrial automation, embedded instruments, motor and actuator controllers, digital control panels, communication modules, and consumer devices requiring a compact 16-bit controller. The 3 V to 5 V operating range supports conventional embedded supply rails, while the -40°C to +85°C commercial temperature range supports industrial-temperature designs. Exact peripheral functions, RAM size, timer resources, communications interfaces, and electrical limits should be confirmed against the manufacturer datasheet before schematic capture. The most important PCB consideration is the 48-pin LQFP footprint. Place the MCU close to its bypass capacitors and route sensitive signals away from noisy switching nodes. Confirm the manufacturer pinout and exposed support requirements rather than relying on distributor-only descriptions. For replacement decisions, firmware compatibility, clock behavior, memory size, peripheral mapping, and package pin assignment must all be checked. This page combines verified distributor specifications, official Renesas product information, pricing references, package details, and engineering-oriented selection guidance. Because the supplied data does not include the complete electrical table or complete pin assignment, unspecified parameters are intentionally marked for verification rather than inferred.

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R5F21236JFP - 16-Bit 20MHz MCU 32KB Flash | Renesas
R5F21236JFP

R5F21236JFP - 16-Bit 20MHz MCU 32KB Flash | Renesas

The Renesas Electronics R5F21236JFP is a 16-bit R8C/23 microcontroller operating at up to 20 MHz, with 32 KB of flash memory and a 48-pin LQFP package. The verified product information identifies a 3/5 V device and describes it as an R8C-family MCU intended for embedded control applications. Its 32K x 8 flash organization, 16-bit architecture, and R8C CPU core place it between general-purpose embedded controllers and more specialized automotive networking devices. A microcontroller is a semiconductor device that integrates a CPU core, program memory, data memory, peripherals, and I/O into one package. In the system hierarchy, the R5F21236JFP belongs to the microcontroller class, uses the R8C CPU core, and provides embedded processing for control, communication, measurement, and automation functions. The R8C/23 family is specifically described by Renesas as a non-promotion family supported for customers that have already adopted the products. Key verified features include a 16-bit MCU architecture, 20 MHz operation, 32 KB flash storage, 3/5 V supply operation, and a 48-LQFP package measuring 7 x 7 mm according to the distributor listing. The R8C core is described as using sophisticated instructions intended to provide high instruction efficiency. The device also includes embedded data-flash blocks according to the retrieved R8C/23 material, while the exact density, voltage tolerances, peripheral list, and memory timing figures require the manufacturer datasheet. The verified R8C/23 description also identifies one CAN module and suitability for in-vehicle or FA networking. This makes the MCU relevant to industrial networking and automotive-adjacent control platforms, provided the exact electrical and qualification requirements are checked. Because the product is listed as non-promotion and supported only for previously adopted customers, lifecycle planning should confirm availability before new design commitments. Typical applications include industrial control equipment, factory automation nodes, CAN-connected machines, embedded instrumentation, and automotive or FA networking modules. The 48-LQFP package supports conventional PCB assembly and external interconnection, while the 20 MHz R8C core provides a balance of processing capability and embedded control integration. Exact RAM, peripheral, electrical, and pin-level requirements are not present in the supplied search data and are marked for verification. Before design-in, engineers should obtain the official Renesas datasheet, confirm the exact package pinout, validate 3/5 V operating conditions, and check the CAN and data-flash requirements against the system architecture. For sourcing, compare authorized inventory and lifecycle status rather than assuming a distributor listing means a new design is supported.

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R5F21236KFP - 16-Bit 16MHz R8C/23 MCU, 32KB Flash | Renesas
R5F21236KFP

R5F21236KFP - 16-Bit 16MHz R8C/23 MCU, 32KB Flash | Renesas

The Renesas R5F21236KFP is a 16-bit single-chip CMOS microcontroller from the R8C/2x series, featuring the R8C/Tiny CPU core, 32KB of flash memory, 2KB of SRAM, and a maximum clock speed of 16MHz, all packaged in a 48-pin LQFP (7x7 mm). According to the verified distributor data, the device operates from a 3V/5V supply, supports an operating temperature range of -40C to +125C, and is qualified to the automotive Pb-free standard. The R8C/23 group is supported only for customers who have already adopted the product, signaling its long-running presence in established designs. A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory (typically flash), data memory (RAM), and a rich set of peripherals on a single die. The R8C/Tiny core used here belongs to the 16-bit microcontroller family, positioned between 8-bit MCUs (e.g., RL78, PIC16) and 32-bit microcontrollers (e.g., RX, ARM Cortex-M) in the Renesas product hierarchy. Its CISC-style instruction set and 1MB address space make it suitable for compact, deterministic embedded code in cost-sensitive applications. Key features of the R5F21236KFP include 32KB flash program memory, a 16-bit CPU with high instruction efficiency, on-chip peripherals typical of the R8C/23 group such as timers, serial interfaces, A/D converter, and interrupt controller, plus 1MB linear address space for executing instructions. The 48-pin LQFP package exposes a generous number of GPIO and peripheral pins while keeping board footprint modest. Automotive-grade Pb-free construction supports deployment in commercial vehicle environments. Technically, the device is built on a high-performance silicon-gate CMOS process. The 16MHz maximum operating frequency, when paired with the R8C CPU core, gives instruction throughput that is well matched to consumer, industrial, and white-goods control tasks. The combination of 32KB flash and 2KB SRAM allows medium-complexity firmware with reasonable data buffering. AEC-Q100-equivalent automotive temperature range and Pb-free finish extend applicability to harsh thermal environments. Typical applications include home appliances such as washing machines and microwave ovens, HVAC control, white goods and small-motor drive control, automotive body and accessory ECUs (within the part's automotive-grade classification), industrial sensor interfaces, and consumer-device keypad and LED matrix controllers. The R8C/23 group's mature software ecosystem and low BOM cost make it a common choice for high-volume, cost-driven products. When designing with this MCU, note that R8C/23 is a non-promotion group, meaning Renesas only supports existing adopters. New designs should consider RL78 or RX families for long-term support, but the part remains pin-compatible with other R8C/2x variants for legacy board reuse. Verify supply availability with distributors before committing new production.

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R5F21237JFP - 16-Bit 20MHz MCU 48KB Flash | Renesas
R5F21237JFP

R5F21237JFP - 16-Bit 20MHz MCU 48KB Flash | Renesas

The Renesas Electronics R5F21237JFP is a 16-bit R8C/23-group microcontroller built around the R8C CPU core, operating at up to 20 MHz and supplying 48 KB of flash program memory in a 48-pin LQFP package. The device supports a 3/5 V supply arrangement and combines a 1 Mb address space with efficient CISC-style instructions for embedded control applications. A microcontroller is a programmable semiconductor that integrates a CPU, memory, and peripherals on one device. The R8C/23 belongs to the Renesas MCU family within the broader embedded-controller hierarchy, where a general-purpose CPU core executes firmware while timers, serial interfaces, analog functions, and digital I/O interact with external hardware. The verified product information identifies a 48 KB (48K x 8) flash memory organization and a maximum clock frequency of 20 MHz. Renesas describes the silicon-gate CMOS implementation as providing a high level of instruction efficiency. These characteristics make the MCU suitable for compact embedded controllers whose firmware must coordinate several peripheral functions while operating from a 3 V or 5 V system supply. The R5F21237JFP is packaged in a 48-pin plastic molded LQFP measuring 7 x 7 mm. This surface-mount format supports conventional PCB assembly while exposing more I/O than smaller microcontroller packages. Exact peripheral inventories, RAM organization, timer resources, analog performance, and individual pin assignments are not stated in the supplied source material and should be confirmed in the manufacturer datasheet before schematic capture. Typical design uses include industrial control modules, sensor conditioning, communication equipment, motor or actuator control, and compact consumer appliances. Designers should validate the required peripherals, interrupt vectors, timing performance, and pin multiplexing against the Renesas R8C/23 documentation before committing the PCB layout. The main implementation consideration is firmware and timing compatibility during any lifecycle transition. Because the R8C/23 is supported only for customers already using the family, engineers should confirm availability, current lifecycle status, toolchain support, and any approved alternate source before a new production release. This page combines verified distributor and Renesas product information with package, application, comparison, and sourcing guidance. It identifies where the R5F21237JFP fits while separating documented facts from details that require manufacturer confirmation.

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R5F21264SNFP#V2 - 16KB Flash 16-Bit MCU | Renesas R8C/26
R5F21264SNFP#V2

R5F21264SNFP#V2 - 16KB Flash 16-Bit MCU | Renesas R8C/26

The Renesas R5F21264SNFP#V2 is a 16-bit single-chip microcontroller from the R8C/26 family, featuring 16KB of flash memory, a 20MHz R8C/Tiny CPU core, and packaged in a 32-pin LQFP (7x7 mm). It is designed for low-power embedded applications requiring moderate code density and is fabricated using a high-performance silicon gate CMOS process. The device operates from a 2.2V to 5.5V supply, supporting both 3V and 5V system rails, and integrates 16KB flash, 1KB SRAM, and a 10-bit A/D converter for sensor interfacing. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, RAM, and integrated peripherals. The R8C/26 belongs to the R8C family of 16-bit microcontrollers, a class of devices that sit between 8-bit MCUs (such as the 8051) and 32-bit ARM Cortex-M devices, offering higher code density than 8-bit parts while remaining simpler than full 32-bit architectures. Within the broader taxonomy, this MCU is part of Renesas' legacy 16-bit R8C platform, which has since been superseded for new designs by the RL78/G14 family. Key features include 20MHz maximum operating frequency, 16KB flash program memory, 1KB on-chip data RAM, a 10-bit A/D converter, multiple timers, watchdog timer, and on-chip debug support. The 32-pin LQFP package provides ample I/O for compact designs while remaining hand-solderable for prototyping. The wide 2.2V to 5.5V operating range allows direct connection to lithium-ion or regulated 5V rails. The R8C/Tiny CPU core implements a CISC-style instruction set optimized for code density, with most instructions executing in a single cycle and a wide register file that simplifies compiler code generation. On-chip peripherals include timers, a watchdog timer, voltage detector, and serial interfaces (UART, I2C, and SSI). The CMOS process yields low active and standby current, suitable for battery-powered products. Typical applications include consumer electronics, home appliances, industrial sensor controllers, and low-end automotive subsystems. The combination of small flash footprint, integrated peripherals, and a compact 32-pin LQFP package makes it well-suited to cost-sensitive embedded designs. Designers should consult the R8C/26 hardware manual for register-level configuration details. When migrating from the R8C/26 family, Renesas recommends the RL78/G14 as the modern replacement, which provides lower power consumption and enhanced peripherals while maintaining code compatibility through translation tools. For legacy support, the R5F21264SNFP#V2 remains active in the Renesas portfolio. This page synthesizes distributor stock, datasheet references, drop-in R8C/26 family alternatives, and practical design considerations beyond what is available in the bare datasheet.

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R5F21276SNFP#V2 - 16-bit R8C MCU 32KB Flash 20MHz | Renesas
R5F21276SNFP#V2

R5F21276SNFP#V2 - 16-bit R8C MCU 32KB Flash 20MHz | Renesas

The Renesas Electronics R5F21276SNFP#V2 is a 16-bit single-chip microcontroller from the R8C/27 Group, embedding the R8C CPU core running at up to 20 MHz, with 32 KB of flash memory plus 2 KB of additional RAM area, operating from 3 V to 5 V and housed in a 32-pin molded-plastic LQFP (7 x 7 mm) package. A microcontroller unit (MCU) is a complete computer-on-a-chip that integrates a processor core, program memory (flash), data memory (RAM), and peripheral functions such as timers, serial interfaces, and analog-to-digital converters. Within the semiconductor hierarchy, the R5F21276SNFP#V2 belongs to the general-purpose 16-bit MCU class, positioned between 8-bit MCUs and 32-bit MCUs, and is part of Renesas' R8C Family / R8C/2x Series of cost-sensitive embedded controllers. Key differentiating specifications include the sophisticated R8C instruction set, which achieves a high level of instruction efficiency for compact, fast-executing code; the 3 V to 5 V supply range, which allows direct operation from both 3.3 V and 5 V systems; and lead-free (#V2 suffix) construction for RoHS-conscious manufacturing. The flash memory supports in-system programming, simplifying field firmware updates. The device is fabricated using a high-performance silicon gate CMOS process, which combines low power consumption with fast switching speeds. The R8C CPU core executes most instructions in short cycle counts and integrates on-chip peripherals typical of the R8C/27 Group, including timers, serial communication interfaces, and ADC functionality, reducing external component count and board cost in embedded designs. Typical applications include consumer electronics, home appliance control, industrial sub-systems, and motor control boards. The R8C/27 Group is a proven platform widely used in cost-driven products that require dependable 16-bit control with modest flash capacity. An important design consideration: Renesas states that the R8C/27 Group is supported only for customers who have already adopted these products, and the RL78/G14 Group is recommended for new designs. Engineers starting a new project should evaluate RL78/G14, while existing users should verify long-term supply. This page synthesizes distributor pricing, drop-in alternatives within the R8C/27 family, and practical design notes not found in the manufacturer datasheet.

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R5F212A8SNFA#V2 - R8C/2A 16-bit MCU 64KB Flash 20MHz | Renesas
R5F212A8SNFA#V2

R5F212A8SNFA#V2 - R8C/2A 16-bit MCU 64KB Flash 20MHz | Renesas

The Renesas R5F212A8SNFA#V2 is a 16-bit R8C/2A group microcontroller built around the R8C/Tiny Series CPU core, delivering 20 MHz core clock performance with 64 KB of on-chip flash and 2 KB of RAM, packaged in a 64-pin LQFP (14x14 mm). It is fabricated using a high-performance silicon gate CMOS process optimized for low-power embedded control and supports a broad operating voltage range suitable for both 5 V and 3.3 V system designs. An R8C/Tiny microcontroller (MCU) is a 16-bit single-chip microcontroller from Renesas' R8C family that combines a compact, high-efficiency CPU core with rich on-chip peripherals including timers, A/D converters, communication interfaces, and watchdog functions. Within the broader taxonomy, R8C MCUs sit between 8-bit legacy MCUs (such as the 78K0 and RL78 base series) and 32-bit ARM Cortex-M devices, targeting cost-sensitive, deterministic real-time control applications. The R8C core implements sophisticated instructions and addressing modes that achieve high code density, reducing program memory consumption versus typical 8-bit CISC cores. The R5F212A8SNFA#V2 key specifications include 64 KB (64K x 8) flash program memory, 2 KB of RAM, 16-bit CPU architecture, 20 MHz maximum operating frequency, 64-pin LQFP surface-mount package, and an operating temperature range of -20C to +85C. The integrated R8C core supports a C-based development environment and is widely deployed in white goods, motor control, and industrial sensor applications. Peripherals typically include multi-channel 10-bit A/D converters, 8/16-bit timers, UART, I2C, and SSU (Synchronous Serial Communication Unit) interfaces. This part is intended only for customers who have already adopted R8C/2A in production; Renesas officially recommends the RL78/G14 family for new designs. Engineers selecting R5F212A8SNFA#V2 should confirm longevity of supply for legacy R8C/2A designs and validate peripheral availability against the specific R5F212A8 sub-group datasheet revision. Typical applications include home appliance control boards, industrial sensor signal conditioning, HVAC fan/valve controllers, low-end motor drivers, and consumer device human-machine interface logic. A core design consideration is supply-chain continuity - because the R8C/2A group is in legacy support, designers should evaluate second-source cross references and confirm lifetime-buy programs before committing to new product runs. This page synthesizes distributor pricing, parametric verification, and design notes not consolidated in the manufacturer datasheet, providing engineers with practical context for legacy R8C/2A procurement and migration planning to RL78.

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R5F212BCSDFP - 16-bit 20MHz 128KB Flash MCU 64-LFQFP | Renesas
R5F212BCSDFP

R5F212BCSDFP - 16-bit 20MHz 128KB Flash MCU 64-LFQFP | Renesas

The Renesas R5F212BCSDFP is a 16-bit R8C/2B microcontroller built on the R8C/Tiny Series CPU core, delivering up to 20 MHz operation with 128 KB of on-chip Flash and 2 KB of additional RAM/DataFlash, housed in a 64-pin LFQFP (10x10 mm) package. An R8C/Tiny MCU is a compact, high-efficiency 16-bit microcontroller core optimised for embedded control applications, sitting in the broader hierarchy of 16-bit microcontrollers -> microcontrollers (MCU) -> microprocessors and microcontrollers -> semiconductor ICs. The R8C architecture combines a CISC-style instruction set with a 1 MB linear address space and high code density, making it well-suited to industrial and consumer applications requiring deterministic real-time control. Key features include 128 KB program Flash with single-voltage write/erase, 2 KB DataFlash for non-volatile data, an integrated voltage detector, on-chip debugger interface, multiple timers, a 10-bit A/D converter, and a rich serial-interface set (UART, I2C, SSI). The 64-LFQFP package provides generous I/O for peripheral expansion while keeping the board footprint compact. The R8C/2B group uses a Harvard-style internal bus architecture with a dedicated Flash memory controller, supporting in-system programming and background operation. The CPU core executes most instructions in one cycle at 20 MHz, and the architecture supports compact table-lookup instructions and hardware multiply/divide, enabling efficient closed-loop control firmware. Typical applications include industrial sensor signal conditioning, motor control subsystems, HVAC controllers, white goods control boards, and battery management secondary MCUs. The wide operating voltage range and small package also suit handheld measurement instruments and automotive body ECUs in non-safety-critical roles. When designing with this part, observe the decoupling and oscillator-layout guidelines from Renesas' R8C/2B hardware manual. The R8C/2B group is supported only for customers who have already adopted these products; Renesas recommends the RL78/G14 group for new designs, but the R5F212BCSDFP remains fully supported and in active production for existing programs. This page consolidates distributor pricing, lifecycle status, drop-in compatible variants, and PCB-level design notes that go beyond the manufacturer datasheet, allowing design engineers and procurement teams to make informed sourcing decisions in a single view.

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R5F2135CCNFP - 16-bit R8C/35C MCU, 128KB Flash, 52-LQFP | Renesas
R5F2135CCNFP

R5F2135CCNFP - 16-bit R8C/35C MCU, 128KB Flash, 52-LQFP | Renesas

The Renesas R5F2135CCNFP is a 16-bit single-chip microcontroller from the R8C/35C group, built on the high-efficiency R8C CPU core and housed in a 52-pin LQFP package measuring 10 mm x 10 mm with a 0.65 mm pitch. The device integrates 128 KB of Flash program memory plus 4 KB of data Flash, runs at up to 20 MHz CPU clock, operates from a 1.8 V to 5.5 V supply (2.7 V to 5.5 V for Flash programming), and provides 48 general-purpose I/O pins plus multiple serial interfaces. The R8C/35C family is supported only for customers who have already adopted these products; Renesas recommends the RL78/G14 and RL78/G1F families for new designs. An R8C MCU is a 16-bit CISC microcontroller that combines a compact, high code-density instruction set with hardware multipliers and rich on-chip peripherals, sitting in the hierarchy: microcontroller -> embedded MCU -> 16-bit MCU -> R8C family -> Renesas 16-bit CISC lineup. Compared with 8-bit MCUs, the R8C architecture delivers higher MIPS per MHz and better C-language code density, while remaining simpler and lower-cost than 32-bit ARM Cortex-M0 alternatives for cost-sensitive appliance, sensor, and motor-control designs. Key features include 1 MB of linear address space, 6 KB of RAM, on-chip voltage detection, low-voltage detection, watchdog timer, multiple timers (8-bit and 16-bit), a 10-bit A/D converter, UART, I2C-bus, and a clock-synchronous serial interface. Built-in data Flash (4 KB) allows non-volatile parameter storage alongside the main 128 KB program Flash, eliminating an external EEPROM in many designs. The architecture uses a Harvard-style bus with a small RISC-like CISC instruction set, supporting signed multiply, hardware MAC-style operations, and bit-level addressing for compact control code. The 20 MHz core clock combined with a single-cycle instruction execution for many op-codes yields deterministic interrupt latency suitable for consumer and industrial real-time control. Typical applications include home appliance control (washing machines, microwave ovens, induction cookers), white-goods motor control (BLDC, fan, pump), HVAC thermostat and sensor interface boards, consumer electronics (rice cookers, water heaters), industrial sensor signal conditioning, and battery-powered smart metering front-ends. The wide 1.8 V to 5.5 V operating range allows direct connection to 4 NiMH cells or a single Li-ion cell via LDO. When designing with this part, evaluate the roadmap note carefully: Renesas explicitly states the R8C/35C group is supported only for existing customers, while the RL78/G14 and RL78/G1F groups are recommended for new designs. Plan around long-term availability, second-source qualification, and supply risk before committing to new volume production. This page consolidates distributor pricing, drop-in alternatives, and practical design considerations not found in the manufacturer datasheet alone, including parametric equivalent MPNs from the same R8C/35C group that share the 52-LQFP footprint.

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