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R5F21183SP#U0

R5F21183SP#U0 - 16-Bit 20MHz R8C MCU | Renesas Electronics

Renesas Electronics R5F21183SP#U0 is a 16-bit microcontroller with an R8C/1x/18 CPU core, a 20 MHz operating speed, 12 KB of flash program memory, and 768 bytes of RAM. The device is supplied in a 20-pin LSSOP package and operates from 2.7 V to 5.5 V, with a documented operating-temperature range of -20°C to +85°C. Its internal oscillator and 13 general-purpose input/output pins support compact embedded-control designs without an external clock source. A microcontroller is a programmable semiconductor that integrates a processor core, nonvolatile program memory, working RAM, and peripheral functions onto one package. Within the product hierarchy, the R5F21183SP#U0 is an MCU, an embedded-processing IC, and a member of the R8C family of 16-bit devices. This classification distinguishes it from discrete logic, analog regulators, and communications transceivers while placing it within the broader embedded-control and industrial-control markets. The principal device characteristics are a 16-bit R8C/1x/18 architecture, 20 MHz maximum speed, and 12 KB (12K × 8) flash memory. The MCU also includes 768 × 8 bits of RAM and 13 I/O pins in a 20-LSSOP package rated across a 2.7 V to 5.5 V supply range. These figures make the part suitable for compact control systems where moderate processing throughput, deterministic peripheral control, and limited board area are more important than large embedded flash capacities. The R8C core provides a 16-bit processing architecture suitable for embedded tasks involving control logic, state machines, communication routines, and peripheral coordination. Flash program memory supports resident firmware, while the 768-byte RAM provides working space for variables, stacks, and intermediate data. The internal oscillator eliminates the need for a separate clock oscillator in designs whose timing requirements do not demand an external frequency source. Potential applications include compact industrial controllers, appliance and equipment control panels, sensor-processing modules, building-control terminals, and embedded peripheral controllers. A 20-pin package and 13 I/O pins make the device appropriate for designs where the firmware must coordinate several inputs and outputs while occupying little PCB area. The 2.7 V to 5.5 V operating range accommodates both 3 V and 5 V systems, although each peripheral and external-circuit requirement should be checked against the manufacturer documentation. The principal design consideration is to verify the complete pin assignment and peripheral multiplexing before layout. The 20-LSSOP land pattern provides limited routing area, so decoupling, programming access, oscillator requirements, and I/O contention must be planned before PCB release. Because the supplied search results identify this exact orderable variant as “Non Promotion,” production planning should confirm lifecycle status and availability directly with Renesas before committing a long-running design. This page consolidates the verified manufacturer and distributor facts, current price references, technical comparisons, and sourcing guidance for R5F21183SP#U0. It also distinguishes documented parameters from missing information, avoiding unsupported assumptions where complete electrical, timing, peripheral, and pin-level details were not present in the supplied sources.

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R5F21184DD#U0

R5F21184DD#U0 - 16-Bit 20MHz R8C MCU | Renesas

Renesas Electronics R5F21184DD#U0 is a 16-bit R8C microcontroller operating at up to 20 MHz, with 16 KB of built-in Flash memory and 1 KB of RAM, in a 20-pin SDIP package. The device operates from 2.7 V to 5.5 V and supports a -20 °C to +85 °C temperature range. Its through-hole 20-SDIP package, specified at a 0.300-inch or 7.62 mm pitch, is intended for applications where conventional PCB assembly and socket compatibility are useful. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, peripherals, and input/output circuitry into one component. The R5F21184 belongs to the R8C/1x/18 product family and provides 13 I/O pins, allowing the target R8C CPU core to control external peripherals, acquire digital signals, and manage embedded-system tasks. The 16 KB Flash configuration provides on-chip program storage, while the 1 KB RAM supports working data and stack operations. The principal verified performance characteristics are a 16-bit CPU architecture, a 20 MHz operating frequency, 16 KB of built-in Flash, 1 KB of RAM, a 2.7 V to 5.5 V supply range, and 13 available I/O pins. The operating-temperature range of -20 °C to +85 °C supports use across commercial and industrial ambient conditions when the complete system is designed within the specified electrical limits. The R8C/1x/18 architecture is useful for compact embedded controllers that require more control than a simple logic device but do not need a high-end processor. Potential applications include industrial control, instrumentation, appliance control, data acquisition, and communication equipment. The target MCU's 20 MHz clock and 16-bit instruction set are suitable for coordinating real-time control loops and handling multiple peripheral functions without an external memory device. The through-hole SDIP-20 package simplifies prototyping, inspection, and repair compared with fine-pitch surface-mount packages. It also makes the device suitable for legacy control boards and socket-based assemblies, provided the board layout matches the Renesas R5F21184DD#U0 pin arrangement. Designers must verify the complete pin configuration, peripheral functions, clock requirements, and timing limits in the manufacturer datasheet before production release. This product data distinguishes verified distributor specifications from information requiring datasheet confirmation. Published pricing is $3.8098 per unit as of 2026-10-28, and the official Renesas product listing indicates that the R5F21184DD#U0 remains orderable. The detailed pinout, electrical timing, peripheral list, and memory map should be taken directly from the applicable R8C/1x/18 hardware documentation.

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R5F21184NP#U0

R5F21184NP#U0 - 16-Bit R8C 16KB MCU | Renesas Electronics

The Renesas Electronics R5F21184NP#U0 is a 16-bit R8C microcontroller with 16 KB of flash memory, a 20 MHz operating frequency, a 2.7 V to 5.5 V supply range, and a 28-pin HWQFN package. It belongs to the R8C/1x microcontroller family and is designed for embedded control applications requiring compact packaging, flash-backed firmware storage, and a mixed-signal peripheral set. A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The R8C core is a compact CISC-based architecture used in embedded systems where deterministic control, low component count, and broad peripheral integration are important. Within the device hierarchy, the R5F21184NP#U0 is a 16-bit microcontroller, an embedded processor, and ultimately a semiconductor used to implement control logic for industrial, consumer, and communications equipment. The main device characteristics include 16-bit instruction processing, 16 KB of flash program memory, operation from 2.7 V to 5.5 V, and a 20 MHz maximum clock indication for the closely related R5F21184 family. The 28-pin HWQFN package supports a compact surface-mount footprint, while the 5 V-oriented operating range suits conventional embedded control systems. Its integrated architecture reduces the number of external components needed for basic sensing, timing, communications, and actuator-control functions. The R8C family architecture is intended for embedded applications that need more control capability than a simple 8-bit controller without moving immediately to a larger application processor. Flash memory allows firmware to be programmed for the finished product rather than relying on mask-programmed ROM. The combination of a 20 MHz clock, 16-bit CPU architecture, and mixed-signal peripherals supports responsive control loops while keeping software and hardware integration manageable. Typical uses include industrial control modules, sensor interfaces, motor and actuator controllers, household appliances, instrument panels, and low- to moderate-speed communications equipment. The device can also serve as the central controller in compact embedded products where a 28-pin package is preferred over larger leaded or high-pin-count alternatives. System-level selection should account for the exact peripheral mix, clock configuration, memory organization, and board-level requirements of the target design. Before laying out a PCB, use the manufacturer pin-description table and package drawing to assign every signal and preserve the exposed-pad connection specified for the HWQFN package. Keep supply and ground paths short, place decoupling capacitors near the device, and confirm the external crystal or clock-network requirements for the intended operating mode. Firmware development should follow the R8C hardware and application notes to preserve correct peripheral configuration and timing. This product page consolidates the essential R5F21184NP#U0 identity, electrical envelope, package information, application guidance, comparison fields, and sourcing questions into one engineering-focused reference. It also distinguishes documented device facts from parameters that require confirmation in the Renesas datasheet or product documentation before a new design is released.

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R5F21184SP#U0

R5F21184SP#U0 - 16-Bit 20MHz R8C MCU | Renesas

The Renesas Electronics R5F21184SP#U0 is a 16-bit R8C microcontroller operating at up to 20 MHz, with 16 KB of flash program memory, in a 20-pin LSSOP package. The device operates from a 2.7 V to 5.5 V supply range and is identified as a 3 V and 5 V Pb-free MCU. Its four-channel comparator and watchdog-related functions make it useful for embedded control designs requiring local sensing, timing, and programmable digital I/O. An R8C microcontroller is a general-purpose embedded processor based on Renesas Electronics' R8C CPU core. Within the semiconductor hierarchy, it belongs to the microcontroller and embedded-control family rather than a dedicated analog or power-management device. The R8C/1x group combines a 16-bit architecture with flash-based firmware storage in compact packages intended for industrial controls, consumer equipment, instrumentation, and small automation systems. Key characteristics include a 20 MHz maximum operating frequency, 16-bit processing width, and 16 KB of flash memory. The 2.7 V to 5.5 V operating range allows use in both 3 V and 5 V systems. The integrated four-channel comparator can support threshold detection, signal conditioning, and basic sensor-interface functions without requiring a separate comparator IC for every measurement channel. The Pb-free package designation also supports sourcing plans that avoid lead in the component termination. The R8C/1x architecture is designed for compact embedded control rather than high-performance application processing. Firmware, peripheral configuration, and interrupt handling determine real-time behavior, while the 16 KB flash capacity places a firm boundary on program size. Engineers should treat memory availability as a design constraint and verify the complete device pin description, electrical limits, and peripheral allocation in the Renesas datasheet before finalizing firmware or board-level connections. Typical uses include small industrial controllers, sensor-conditioning modules, motor or valve supervisory circuits, programmable timers, and compact consumer-control boards. The comparator channels are particularly useful where analog thresholds must be evaluated beside digital control logic. Applications requiring extensive protocol stacks, large data storage, or high-resolution graphics remain better suited to microcontrollers with substantially more memory and peripheral resources. For PCB implementation, confirm the 20-pin LSSOP footprint and assign every power, ground, programming, reset, and signal connection according to the manufacturer's pin-description table. Place required decoupling capacitors close to the supply pins and provide a clean, low-impedance ground return. Because the exact exposed thermal-pad arrangement, programming interface, and complete peripheral allocation are not stated on the product listing, use the official datasheet during schematic and layout signoff. This page combines the principal R8C/1x specifications with practical sourcing, replacement, footprint, and design guidance. It also distinguishes the target ordering code from nearby Renesas variants, helping engineers confirm package, memory, voltage, and temperature requirements before committing a PCB or production BOM.

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R5F21191SP#U0

R5F21191SP#U0 - 16-Bit 20MHz R8C MCU | Renesas Electronics

Renesas Electronics R5F21191SP#U0 is a 16-bit R8C/19 group microcontroller operating at up to 20 MHz, with 4 KB of Flash program memory and a 20-LSSOP package. The device supports nominal 3 V and 5 V operation, with an operating supply range of 2.7 V to 5.5 V according to the distributor listing. Its 384-byte internal RAM and integrated data flash make it suitable for compact embedded-control products requiring nonvolatile parameter storage. A microcontroller is a programmable semiconductor that combines a CPU core, memory, and peripherals on one integrated circuit. The R5F21191SP#U0 belongs to Renesas's R8C/1x family and uses the R8C/19 group. This places it in the hierarchy of embedded microcontroller, microcontroller, semiconductor, and programmable control device. The R8C architecture provides a 16-bit processing environment in a compact 20-pin surface-mount package intended for embedded systems. Verified distributor data identifies four on-chip comparators and a watchdog timer, while the family documentation describes data-flash ROM and the same peripheral functions across the R8C/18 and R8C/19 groups. The principal distinction between those groups is the presence or absence of data-flash ROM. These integrated features reduce external component requirements for threshold detection, timing supervision, and persistent configuration in compact appliances, sensors, security equipment, office equipment, and industrial products. The 20 MHz operating speed provides a practical balance between processing throughput, power consumption, and external-clock requirements. Its 4 KB Flash capacity supports embedded firmware for compact control loops, while the 384-byte RAM accommodates working variables and peripheral buffers. The listed operating temperature range of -20 °C to 85 °C supports consumer and general industrial environments where extended-temperature qualification is not required. Designers should preserve the 20-LSSOP footprint and verify the complete Renesas R8C/19 pin assignment before PCB release. The component is identified as Pb-free, but detailed RoHS, REACH, halogen-free, and conflict-minerals declarations were not present in the supplied verification data. Toolchain, peripheral, and electrical details should therefore be confirmed against the manufacturer documentation before production release. This page consolidates verified distributor specifications, source links, engineering applications, and a documented R8C/18-family cross-reference into a design-focused component record.

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R5F21192SP#U0

R5F21192SP#U0 - 16-Bit 20MHz R8C MCU | Renesas Electronics

The Renesas Electronics R5F21192SP#U0 is a 16-bit R8C-series single-chip microcontroller operating at up to 20 MHz, with 8 KB of flash memory and a 20-pin molded-plastic LSSOP package. It operates from 2.7 V to 5.5 V, supporting both 3.3 V and 5 V system environments. The R5F21192SP belongs to the R8C/1x/19 device group and is offered in a tube-packaged configuration identified by the #U0 suffix. An R8C microcontroller is a single-chip embedded controller that combines a 16-bit CISC core, flash program memory, data memory, timers, serial interfaces, analog comparison functions, and I/O ports on one integrated circuit. The R8C core sits within Renesas's broader MCU hierarchy: R8C/Tiny Series CPU core, 16-bit microcontroller, embedded processing IC, and semiconductor. This combination makes the device suitable for compact control systems that require more computation than an 8-bit MCU without adopting a larger application-specific controller. The R5F21192SP#U0 provides an 8 KB flash-memory configuration, a 20 MHz maximum operating frequency, and a 2.7 V to 5.5 V supply range. A distributor listing identifies a 512 x 8 internal memory organization, while the device description also identifies DataFlash capability and a four-channel comparator. These resources allow firmware, peripheral configuration, and application logic to share one compact package. The device is fabricated using a high-performance silicon-gate CMOS process. The 20-pin PLSP0020JB-A LSSOP package supports conventional surface-mount assembly while providing a compact footprint for embedded products. The reported operating-temperature range is -20°C to 85°C. The R5F21192SP#U0 is presented by Renesas as a non-promotion product, so procurement planning should account for its non-promoted status and confirm availability before committing a new production design. Typical design roles include compact industrial controllers, sensor-conditioning systems, embedded measurement products, serial-interface equipment, and low-to-moderate-speed appliance controls. The 8 KB flash capacity is most appropriate for firmware with focused control logic, while the 16-bit R8C architecture can simplify arithmetic and register organization compared with an 8-bit implementation. PCB planning should preserve the LSSOP pad layout and route sensitive analog inputs away from switching nodes and high-current outputs. Decoupling capacitors should be placed close to the supply pins, while programming and serial-debug access must follow the device's recommended connection arrangement. Confirm pin assignments, clock requirements, and peripheral multiplexing in the manufacturer datasheet before final schematic release. This page consolidates the exact orderable MPN, manufacturer product identity, verified technical attributes, sourcing context, package information, and design-oriented selection guidance into one engineering reference. It also distinguishes true drop-in packaging alternatives from related R8C devices that differ in memory capacity or other functional parameters.

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R5F21192SP#W4

R5F21192SP#W4 - 16-Bit 20MHz R8C MCU | Renesas

The Renesas Electronics R5F21192SP#W4 is a 16-bit R8C-family microcontroller operating at up to 20 MHz, with 8 KB of Flash program memory and 512 bytes of RAM in a 20-LSSOP package. It supports 3 V and 5 V operation, provides 13 general-purpose I/O pins, and is offered in a tape-and-reel configuration for automated production. A microcontroller is a programmable semiconductor that integrates a CPU core, nonvolatile program memory, working RAM, digital I/O, timers, and communication peripherals on one integrated circuit. The R5C/1x product family belongs to the broader hierarchy of embedded processors and controllers, 16-bit microcontrollers, R8C devices, and general-purpose semiconductor components. This combination gives a designer a compact control platform for products requiring deterministic embedded control rather than a desktop processor. The R5F21192SP#W4 provides 8 KB of Flash for firmware and 512 x 8 bits of data memory for operating variables and stack-related requirements. Its R8C CPU core supports a 20 MHz maximum clock, while an internal oscillator provides a clock source without requiring an external crystal. Thirteen I/O pins support digital interfaces, control signals, and peripheral connections. The 3 V to 5 V operating range makes the device suitable for mixed industrial and embedded control systems using conventional logic levels. The 20-LSSOP package measures approximately 4.40 mm in body width and uses a 0.173-inch lead pitch. It is narrower than a standard 20-SOIC outline but remains compatible with surface-mount assembly and reel-based manufacturing. The specified operating-temperature range is -20°C to +85°C, covering common commercial and industrial environments. The Pb-free marking identifies the lead-free configuration, while no other compliance claims should be inferred without additional manufacturer documentation. Typical applications include compact industrial controllers, sensor-conditioning systems, small motor-control modules, digital equipment, and embedded peripheral controllers. The 20 MHz R8C core is appropriate for coordinating inputs, timers, logic states, and communications while the 13 I/O pins connect external sensors and actuators. Compared with larger general-purpose microcontrollers, the device focuses on a smaller memory footprint and a modest I/O count, allowing lower-cost PCB layouts when those resources are sufficient. Designers should confirm every signal voltage against the 3 V and 5 V operating capability and confirm the 13-I/O allocation for the selected device configuration. Decoupling, programming-interface connections, reset behavior, and unused-pin treatment should follow the Renesas R5F21192 datasheet. The narrow LSSOP footprint also requires assembly planning because fine-pitch leads can increase solder-joint inspection and rework difficulty. This page combines the exact R5F21192SP#W4 ordering designation with verified memory, speed, voltage, temperature, package, and I/O characteristics, plus practical selection guidance and compatibility analysis. The comparison and replacement sections focus on same-package options that can be validated rather than presenting unrelated microcontrollers as drop-in replacements.

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R5F21193SP#U0

R5F21193SP#U0 - 16-Bit 20MHz MCU, 12KB Flash | Renesas

Renesas Electronics R5F21193SP#U0 is a 16-bit R8C-series microcontroller with 12KB of flash program memory, 768 bytes of RAM, 13 general-purpose I/O pins, and a 20 MHz maximum operating frequency. The device operates from 3 V to 5 V and is supplied in a 20-pin LSSOP package measuring 0.173 inches, or 4.40 mm, in width. Its non-promotion ordering designation identifies the #U0 configuration. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, digital I/O, and embedded peripherals on one integrated circuit. In the product hierarchy, the R5F21193SP#U0 belongs to the Renesas R8C/19 group of 16-bit microcontrollers. The R8C core provides a compact embedded-control platform for consumer appliances, office equipment, sensor systems, security equipment, industrial products, and audio equipment. Key verified features include 12KB of flash memory, 768 x 8 bits of RAM, 13 I/O pins, a 20 MHz speed rating, and internal oscillator support. The 3 V to 5 V operating range allows the device to share power infrastructure with common embedded systems while retaining compatibility with lower-voltage logic designs. The 20-LSSOP package supports conventional surface-mount assembly and offers a narrow PCB footprint compared with larger leaded packages. The R8C/19 family is designed for compact embedded-control tasks that require deterministic peripheral control without a high-cost external processor. Flash memory retains programmed application code when power is removed, while the 768-byte RAM supports working variables, stack operations, and intermediate data processing. The 13 available I/O pins can be allocated among digital inputs, outputs, serial functions, and external control signals according to the device configuration and peripheral multiplexing requirements. Typical uses include household appliance control, office equipment, sensor interfaces, security systems, industrial equipment, and audio products. Product teams should verify the exact peripheral allocation, reset behavior, clock configuration, electrical limits, and programming requirements against the Renesas R5F21193SP datasheet before releasing a PCB or production firmware. The principal design consideration is package and software continuity. Because this is a 20-pin LSSOP MCU, board layouts, assembly tooling, and firmware settings may differ from otherwise similar 16-bit devices. Engineers should use the manufacturer pin assignment and reference design information rather than assuming compatibility based only on flash size or operating voltage. This page consolidates verified distributor specifications, current purchasing information, package information, and application guidance. It also identifies the absence of manufacturer-confirmed drop-in substitutes rather than presenting merely similar microcontrollers as guaranteed replacements.

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R5F21194DD#V0

R5F21194DD#V0 - 20MHz 16-Bit Flash MCU | Renesas

Renesas Electronics R5F21194DD#V0 is a 16-bit R8C/Tiny Series microcontroller with a 20 MHz operating speed, 16 KB of Flash program memory, 1 KB of RAM, and 13 general-purpose I/O pins in a 20-pin SDIP package. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, and peripherals into one device. The R8C/1x/19 belongs to the R8C family of 16-bit embedded processors and is positioned above basic 8-bit controllers for compact systems that require efficient control, moderate computational throughput, and low-cost integration. The verified device data identifies a 16 KB program memory organized as 16K x 8, a 1K x 8 RAM organization, and a maximum operating speed of 20 MHz. It uses an internal oscillator and provides 13 I/O pins. These characteristics make the R5F21194DD#V0 appropriate for appliance controls, small industrial controllers, sensor interfaces, and compact embedded products where a 20-pin through-hole package simplifies assembly and inspection. Renesas describes the R8C/1x/19 family as being fabricated with a high-performance silicon-gate CMOS process and built around the R8C/Tiny Series CPU core. The family also provides 20-pin molded-plastic LSSOP and SDIP versions and a 28-pin plastic-molded HWQFN version. Exact interrupt, timer, serial-interface, supply-voltage, and peripheral details must be confirmed in the device-specific datasheet before schematic capture. Typical design opportunities include motor-sequence controllers, temperature-monitoring instruments, simple industrial interfaces, programmable logic controllers, and low-cost embedded control modules. The 16 KB Flash capacity provides room for application code, while the 1 KB RAM supports working variables, stack activity, and intermediate data. The 13 I/O pins allow external sensors, switches, indicators, and actuators to be connected without an external I/O expander. Designers should verify operating-voltage limits, clock behavior, peripheral pin assignments, reset requirements, and programming procedures against the manufacturer datasheet. Since this 20-SDIP variant uses through-hole leads, component height, soldering temperature, wave-solder compatibility, and mechanical clearance should also be reviewed before high-volume production. This page combines verified distributor specifications, package and memory details, lifecycle guidance, practical design considerations, and same-package replacement analysis. It distinguishes documented facts from parameters that still require device-specific datasheet verification, helping engineers make an informed sourcing or design decision.

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R5F21194NP#U0

R5F21194NP#U0 - 16-Bit 20MHz R8C MCU | Renesas Electronics

The Renesas Electronics R5F21194NP#U0 is a 16-bit R8C-series microcontroller operating at up to 20 MHz, with 16 KB of flash memory and four comparators, housed in a 28-pin HWQFN package measuring 5 mm by 5 mm. It is designed for compact embedded-control systems requiring a low-power 3 V to 5 V operating environment, mixed-signal monitoring, and integrated peripheral control. A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The R8C family belongs to the broader embedded-controller hierarchy, combining general-purpose control, serial communication, timers, analog comparison, and watchdog functions. This makes the R5F21194NP#U0 useful when a design needs local control, sensor conditioning, actuator signaling, and communication without relying on a higher-cost application processor. The R8C CPU core provides 16-bit processing at a maximum clock frequency of 20 MHz. Its 16 KB flash program memory can store firmware for embedded-control tasks, while the integrated four-channel comparator supports threshold detection and low-cost analog supervision. The 28-HWQFN surface-mount package also includes data-flash capability according to the device listing, allowing selected parameters or operational data to be retained in nonvolatile form when supported by the firmware and application requirements. The device is identified as a non-promotion R8C/1x/19-group microcontroller. Its 3 V to 5 V operating range supports conventional embedded-control rails, while the small 5 mm by 5 mm HWQFN package reduces board area compared with larger leaded-outline packages. The package also demands careful PCB layout because its fine-pitch contacts and exposed thermal construction require compatible land patterns, solder paste design, and thermal-via placement. Typical applications include industrial sensor interfaces, compact motor and actuator controllers, digital monitoring modules, laboratory equipment, and low-power embedded instruments. It is also appropriate for designs that compare external analog signals, supervise thresholds, and perform control functions in a compact embedded platform. A key design consideration is firmware and peripheral planning. Before schematic capture, confirm the exact pin assignments, peripheral multiplexing, clock configuration, and programming mode in the manufacturer datasheet. The fine-pitch HWQFN package also requires assembly controls, including inspection of solder joints and sufficient thermal management under sustained processing loads. This page combines the verified device identity with practical application guidance, engineering design notes, package information, and clearly identified data gaps. It is intended to help engineers evaluate the R5F21194NP#U0 quickly while directing detailed pin, electrical, and programming decisions to the authoritative Renesas documentation.

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R5F21194SP#U0

R5F21194SP#U0 - 16-Bit 20MHz R8C MCU | Renesas Electronics

Renesas Electronics R5F21194SP#U0 is a 16-bit R8C-family microcontroller operating at up to 20 MHz, with 16 KB of flash memory in a 20-LSSOP package. The device supports operation from 3 V to 5 V and is identified by distributor listings as an R8C/1x/19-group MCU with a 16-bit CISC-style R8C CPU core. Its 16 KB flash configuration provides embedded program storage for compact appliance, office-equipment, sensor, security, industrial-control, and audio products. A microcontroller is a programmable semiconductor that integrates a CPU core, program memory, data memory, peripherals, and I/O in one package. Within the embedded-control hierarchy, an MCU is a type of semiconductor and system-on-chip component intended to execute firmware, acquire inputs, control outputs, and manage system timing. The R8C family combines a compact 16-bit architecture with embedded flash memory and peripherals for cost-sensitive embedded applications. The key headline parameters are a 20 MHz operating frequency, 16-bit CPU architecture, and 16 KB of flash program memory. Available listings also identify four comparator channels and a watchdog timer, or WDTO. The 20-LSSOP package provides a relatively compact surface-mount option while exposing the MCU functions through 20 leads. The R5F21194SP#U0 is also listed as a lead-free and Pb-free part. The R5F21194SP#U0 belongs to the R8C/19 group. Available technical information indicates that the R8C/18 and R8C/19 groups differ primarily by the presence or absence of data-flash ROM, while their peripheral functions are the same. The component therefore combines conventional flash-resident firmware with data-flash capability for applications that may require retained parameters, calibration values, or configuration data beyond the main program area. Typical application areas include household appliances, office equipment, housing equipment such as sensor and security systems, general industrial equipment, and audio equipment. In each case, the MCU can execute control logic while using its integrated analog comparison functions and timer resources for local supervision. The 20 MHz clock rate provides a practical balance between processing throughput, power consumption, and external component requirements in compact embedded systems. Designers should confirm the complete pin assignment, peripheral allocation, memory map, electrical limits, and programming-tool requirements against the Renesas R5F21194SP user’s manual and the ordering information for the #U0 suffix. PCB layouts should preserve the manufacturer’s recommended decoupling and programming-interface layout, while firmware development must account for the R8C/19 group’s specific startup vector and peripheral configuration. This page consolidates verified manufacturer and distributor information, current pricing as of 2026-10-29, a same-package comparison candidate, and practical sourcing guidance. Unknown electrical details are explicitly identified rather than estimated, helping engineers distinguish documented facts from parameters that must still be confirmed in the manufacturer documentation.

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R5F211A1SP#U0

R5F211A1SP#U0 - 16-Bit 20MHz MCU | Renesas

Renesas Electronics R5F211A1SP#U0 is a 16-bit R8C/1x-series microcontroller IC operating at up to 20 MHz, with 4 KB of flash program memory, 384 bytes of RAM, and 13 I/O ports in a 20-pin LSSOP package. The device operates from a 3 V to 5 V supply and uses an internal oscillator. A microcontroller is a compact computing system integrated onto one semiconductor die. It combines a processor core, program memory, data memory, I/O ports, clocking, and reset functions to execute embedded control tasks. The R8C/1x family belongs to the broader hierarchy of embedded processors, microcontrollers, and integrated circuits, providing a dedicated platform for industrial control, appliance control, instrumentation, and compact automation systems. The R5F211A1SP#U0 provides 4 KB of flash memory organized as 4 K x 8, together with 384 x 8 bits of RAM. Its 13 I/O ports support digital control and communication interfaces, while the 20 MHz operating speed provides the timing capability needed for responsive embedded tasks. A 3 V to 5 V operating range supports conventional low-voltage logic systems, and the internal oscillator reduces the number of external timing components required in a basic design. The R8C CPU core combines a 16-bit architecture with dedicated flash programming and application behavior suited to compact embedded systems. According to the Renesas R8C/1A and R8C/1B group datasheet, the devices are fabricated using a high-performance silicon-gate CMOS process and are offered in a 20-pin molded-plastic LSSOP package. The silicon-gate CMOS process supports low-power integrated digital operation and reliable high-density logic implementation. Typical applications include small industrial controllers, temperature-instrumentation interfaces, appliance control panels, sensor-conditioning systems, programmable logic controllers, and embedded measurement equipment. The 13 available I/O ports are especially useful for digital inputs, relay or indicator outputs, display segments, and communications peripherals when a compact control board is required. Designers should budget the 4 KB flash limit carefully and confirm that the final firmware, bootloader, and interrupt handlers fit within the available program space. Use the package pin-description table in the manufacturer datasheet when assigning PCB tracks, and provide a stable supply with appropriate local decoupling close to the power pins. This page combines the key MCU specifications, package characteristics, compatible family alternatives, application guidance, and design considerations needed to evaluate the R5F211A1SP#U0 for a new embedded-control design.

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R5F211A2DD#U0

R5F211A2DD#U0 - 16-Bit 20MHz R8C MCU | Renesas

Renesas Electronics R5F211A2DD#U0 is a 16-bit R8C-series single-chip microcontroller with a 20 MHz operating frequency, 8 KB of flash memory, and a 20-pin SDIP package. The device is identified by distributor listings as part of the R8C/1A family and is intended for embedded control designs requiring an R8C CPU core, integrated flash, and a through-hole package. A microcontroller is a semiconductor device that integrates a processor core, program memory, data memory, peripherals, and I/O into one compact component. The R8C belongs to the microcontroller hierarchy, where its R8C CPU core provides the instruction-processing foundation for embedded control systems. Unlike a general-purpose desktop processor, the R5F211A2DD#U0 is designed to execute a defined firmware task while handling digital inputs, outputs, timers, communications, and other embedded-system functions. The verified product information identifies a 16-bit architecture, 20 MHz maximum clock, 8 KB flash organized as 8K x 8, and a 20-SDIP package. These characteristics make the part relevant to compact industrial controllers, appliance controls, instrumentation, sensor-conditioning systems, and legacy embedded products. The through-hole SDIP package also supports prototype boards, repair workflows, and designs assembled with conventional DIP sockets or manual soldering. The R5F211A2DD#U0 belongs to Renesas's R8C/1A product grouping. Its architecture and package should be selected based on the complete manufacturer datasheet rather than only headline frequency and memory figures. Peripheral availability, operating voltage limits, timer resources, serial interfaces, electrical characteristics, and pin multiplexing must be checked against the requirements of the target product before design release. Typical applications include compact motor-sequence controllers, temperature-monitoring instruments, digital panel controls, and embedded industrial modules. In each case, firmware converts the MCU's inputs and communications into control actions while its flash stores the operating program. The 20 MHz R8C core provides useful processing headroom for interrupt-driven control, although final performance depends on the selected peripheral configuration and code path. A primary design consideration is PCB footprint and pin assignment. The verified listing specifies a 20-pin SDIP configuration, so designers should use the manufacturer's pin-assignment drawing and preserve the 0.1-inch pitch arrangement. Decoupling, programming access, oscillator implementation, unused-pin treatment, and reset requirements must follow the relevant Renesas hardware guidance for the selected package and operating conditions. This page consolidates the verified manufacturer and distributor information with practical sourcing, comparison, and design guidance. It distinguishes confirmed parameters from values that require consultation of the full datasheet, helping engineers evaluate the R5F211A2DD#U0 without relying on an incomplete distributor summary.

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R5F211A2NP#U0

R5F211A2NP#U0 - 16-Bit 20MHz R8C Microcontroller | Renesas

Renesas Electronics R5F211A2NP#U0 is a 16-bit R8C single-chip microcontroller operating at up to 20 MHz, with 8 KB of flash program memory, 512 bytes of RAM, and a 3 V to 5.5 V supply range. The device is supplied in a 28-HWQFN surface-mount package measuring 5 mm by 5 mm. A microcontroller is a semiconductor integrated circuit that combines a processor core, program memory, data memory, and peripheral interfaces on one device. The R8C core belongs to the broader microcontroller, embedded-processor, and semiconductor hierarchy. It is intended for compact control systems where local processing, serial communication, timers, analog input, and digital I/O must coexist within a constrained board area and power budget. The R5F211A2NP#U0 combines a 16-bit architecture with 8 KB of flash memory and a maximum stated clock frequency of 20 MHz. Its 512 bytes of RAM support working data and stack operations, while the flash program area permits embedded firmware to be retained in the device. The 3 V to 5.5 V operating range allows operation from common low-voltage rails, although each external circuit must remain within the limits defined in the manufacturer documentation. Renesas identifies the component as an R8C/1x/1A-series device in a 28-pin HWQFN package. The package supports surface-mount assembly and provides a compact alternative to larger leaded microcontrollers. Its small footprint is especially useful in space-constrained controls, but exposed-pad layout, thermal management, and assembly requirements must be checked against the package drawing before PCB release. Typical uses include industrial control modules, compact instrumentation, appliance controllers, sensor interfaces, communication equipment, and low-power embedded products. The device can serve as a local supervisory controller for sensors, communication transceivers, and actuator interfaces, provided the selected peripheral functions match the exact package and device variant. Before designing a PCB, assign every pin from the R5F211A2NP pin-description table, confirm the exposed-pad connection, and follow the recommended power, decoupling, clock, programming, and reset layouts. Verify the detailed peripheral inventory and electrical limits in the manufacturer datasheet because the package code and ordering suffix must remain unchanged for a true second-source comparison. This product page combines the official Renesas device information with distributor technical summaries and practical selection guidance. It also distinguishes verified drop-in alternatives from broader functional equivalents, helping engineers identify candidates without overlooking package, firmware, and pin-assignment constraints.

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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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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