R5F21192SP#W4 - 16-Bit 20MHz R8C MCU | Renesas
Référence : R5F21192SP#W4 ✗ Fin de vieR5F21192SP#W4 Présentation
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.
Alternatives de remplacement direct pour R5F21192SP#W4 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec R5F21192SP#W4 (même facteur de forme et même empreinte) — différant par CPU Core, Operating Supply Voltage, Package, Packaging.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesR5F21192SP#W4 Valeurs maximales et caractéristiques électriques
| Product Type | 16-bit R8C microcontroller |
| CPU Core | R8C |
| Maximum Clock Speed | 20 MHz |
| Program Memory Size | 8 KB (8K x 8) |
| Flash Memory Type | Flash |
| RAM Size | 512 x 8 bits |
| Number of I/O Pins | 13 |
| Tension d'alimentation de fonctionnement | 3 V to 5 V |
| Oscillator Type | Internal |
| Plage de température de fonctionnement | -20°C to +85°C |
| Boîtier | 20-LSSOP |
| Package Width | 4.40 mm (0.173 inch) |
| Lead Pitch | 0.173 inch |
| Type de montage | Surface Mount |
| Packaging | Tape and Reel |
| Lead-Free Status | Pb-free |
| Series | R8C/1x |
Guide de configuration des broches du R5F21192SP#W4 4.40 mm (0.173 inch)
Configuration des broches du R5F21192SP#W4 (boîtier 4.40 mm (0.173 inch)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour R5F21192SP#W4.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
R5F21192SP#W4 convient pour 6 applications: Compact Industrial Control Module, Digital Sensor Interface, Small Motor and Stepper Controller, Digital Equipment Controller, Communication Peripheral Hub, Programmable Logic Controller.
Compact Industrial Control Module
The R5F21192SP#W4 fits compact control modules that monitor digital inputs and operate relays, indicators, or other discrete actuators. Its 16-bit R8C core runs at up to 20 MHz, providing deterministic control while the 13 I/O pins serve external sensors and machine commands. The 8 KB of Flash accommodates a focused application program, and 512 bytes of RAM supports working variables and stack usage. Its 3 V to 5 V operating range supports conventional industrial logic levels, while the -20°C to +85°C specification covers many factory environments.
Recommandé
Digital Sensor Interface
The R5F21192SP#W4 can supervise a compact sensor node when the selected sensors expose digital or simple discrete interfaces. Its 13 I/O pins provide connections for sensor outputs, threshold controls, status indicators, and communications lines, while the 20 MHz R8C core handles timing, debouncing, state logic, and data formatting. The 512-byte RAM limits simultaneous buffered data, so designers should use streaming or interrupt-based processing rather than large sample queues. Its 3 V to 5 V operation also permits integration with both 3.3 V and 5 V system rails.
Recommandé
Small Motor and Stepper Controller
The R5F21192SP#W4 is suitable for small motor-control subsystems where the motor driver handles current and power amplification while the MCU generates step, direction, enable, and timing signals. The 20 MHz R8C core provides enough instruction throughput for deterministic sequencing, while the 13 I/O pins support pulse commands, limit inputs, and status outputs. Firmware capacity of 8 KB is appropriate for a focused state machine, but real-time tasks must avoid excessive interrupt load. Use the manufacturer timing and pin documentation when configuring pulse rates and safe startup behavior.
Recommandé
Digital Equipment Controller
The R5F21192SP#W4 can control front-panel logic, status indicators, key inputs, and internal sequencing in compact digital equipment. Its 16-bit architecture and 20 MHz maximum clock are useful for coordinated input scanning and output timing, while 8 KB of Flash supports a dedicated control application. The 13 I/O pins constrain the available external interface count, making the device best suited to systems with multiplexed or shared interfaces rather than many dedicated connectors. The 20-LSSOP outline also supports compact assemblies when fine-pitch manufacturing capability is available.
Recommandé
Communication Peripheral Hub
The R5F21192SP#W4 can act as a small protocol hub when its firmware coordinates a limited set of serial or discrete communication links. At up to 20 MHz, the R8C core supports frame processing, timeout handling, and status updates, while 13 I/O pins are allocated to communication and control signals. The device's 8 KB Flash and 512-byte RAM constrain buffer sizes and protocol complexity, favoring short-frame protocols and event-driven processing. Pin multiplexing and peripheral configuration must be checked against the complete Renesas R5F21192 documentation before assigning interfaces.
Recommandé
Programmable Logic Controller
The R5F21192SP#W4 is appropriate for small programmable logic controllers that combine input scanning, output sequencing, timing, and local status indication. Its 13 I/O pins support a useful mix of field inputs and outputs, and the 16-bit R8C core at 20 MHz provides responsive cyclic execution. The 8 KB Flash footprint favors a compact ladder-like or state-machine program, while 512 bytes of RAM requires disciplined data allocation. For safety-related machinery, add the necessary monitoring and isolation; the microcontroller's specified electrical and temperature ratings alone do not establish functional safety compliance.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour R5F21192SP#W4 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Product Type | 16-bit R8C microcontroller |
| Maximum Clock Speed | 20 MHz |
| Program Memory | 8 KB (8K x 8) Flash |
| RAM | 512 x 8 bits |
| Operating Voltage | 3 V to 5 V |
| Number of I/O Pins | 13 |
| Package | 20-LSSOP |
| Brand | Renesas Electronics |
| Operating Temperature | -20°C to +85°C |
Notes de conception
Use the Renesas R5F21192 package drawing to establish the 20-LSSOP land pattern, pin-1 orientation, and courtyard before routing the board. The body width is approximately 4.40 mm and the lead pitch is 0.173 inch, so a generic wide-body SOIC footprint must not be substituted. Keep power and decoupling connections short, place the decoupling capacitor at the appropriate supply pins, and reserve programming and reset access for production programming. Fine-pitch LSSOP joints should also be considered during the assembly and inspection plan.
Do not select a replacement based only on the 20-LSSOP outline and 20 MHz clock. Confirm the 3 V to 5 V supply range, 8 KB Flash, 512-byte RAM, 13-I/O allocation, oscillator arrangement, reset behavior, peripheral functions, and every assigned pin. The R5F211B1SP#U0 has only 4 KB of Flash, which is 50% below the target and can prevent the existing firmware from fitting. Treat any substitution as a new engineering review until its complete pin and electrical compatibility is established.
Decouple the R5F21192SP#W4 supply pins according to the manufacturer application guidance and route the return path close to the device. Because the controller operates from 3 V to 5 V, verify every attached peripheral's voltage tolerance and logic levels before enabling outputs. Avoid connecting 5 V-tolerant signals to a device operating at 3 V unless the relevant pin is explicitly rated for it. Include the supply current required by the MCU, external circuits, and attached communication interfaces when sizing the regulator and bulk capacitance.
Informations de conformité
The Mouser listing identifies R5F21192SP#W4 as Pb-free. RoHS, REACH, halogen-free, and conflict-minerals status were not explicitly stated.
