{"id":9569,"date":"2026-07-04T03:50:05","date_gmt":"2026-07-04T03:50:05","guid":{"rendered":"https:\/\/materialparts.com\/r5f21284sdspw4\/"},"modified":"2026-07-04T03:50:05","modified_gmt":"2026-07-04T03:50:05","slug":"r5f21284sdspw4","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/r5f21284sdspw4\/","title":{"rendered":"R5F21284SDSP#W4"},"content":{"rendered":"

Productos<\/h2>\n

The R5F21284SDSP#W4 is a Renesas R8C\/28 Group 16-bit microcontroller featuring the R8C CPU core at 20 MHz with 16 KB Flash, 1 KB RAM, and a compact 20-pin LSSOP package. It integrates UART\/I2C serial interfaces, a 10-bit ADC, multiple timers, and on-chip oscillators for cost-sensitive embedded control applications.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
CPU Core<\/td>\nR8C (16-bit CISC)<\/td>\n<\/tr>\n
Max Frequency<\/td>\n20 MHz<\/td>\n<\/tr>\n
Flash ROM<\/td>\n16 KB<\/td>\n<\/tr>\n
RAM<\/td>\n1 KB<\/td>\n<\/tr>\n
Data Flash<\/td>\n1 KB x 2 blocks<\/td>\n<\/tr>\n
I\/O Pins<\/td>\n13<\/td>\n<\/tr>\n
ADC<\/td>\n4-channel 10-bit<\/td>\n<\/tr>\n
Serial<\/td>\nUART, I2C (SSU), LIN<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n2.2V to 5.5V<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\n20-pin LSSOP (6.6 x 4.5 mm)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • R8C 16-bit CISC core with high code efficiency and M16C-compatible instruction set<\/li>\n
  • 1 KB on-chip data flash (2 blocks) for parameter storage without external EEPROM<\/li>\n
  • Motor control timer support for system control + motor control applications<\/li>\n
  • Built-in voltage detection circuit, power-on reset, and watchdog timer<\/li>\n
  • High\/low-speed on-chip oscillators eliminating external clock components<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Home appliances (air conditioner, washing machine control)<\/li>\n
    • Office equipment and printer controllers<\/li>\n
    • Audio equipment and consumer electronics<\/li>\n
    • Automotive body electronics and sensor interfaces<\/li>\n
    • Industrial sensor and actuator modules<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The R5F21284SDSP#W4 is a Renesas R8C\/28 Group 16-bit microcontroller featuring the R8C CPU core at 20 MHz with 16 KB Flash, 1 KB RAM, and a compact 20-pin LSSOP package. It integrates UART\/I2C serial interfaces, a 10-bit ADC, multiple timers, and on-chip oscillators for cost-sensitive embedded control applications. Key Specifications CPU Core R8C […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,25],"tags":[812],"chip_brand":[12],"class_list":["post-9569","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","tag-r5f21284sdspw4","chip_brand-renesas"],"acf":{"brief_explanation":"Renesas R8C\/28 16-bit MCU, 20MHz, 16KB Flash, 1KB RAM, 20-LSSOP, UART\/I2C\/ADC, 2.2-5.5V","date_code":"","package_case":"20-LSSOP (6.6 x 4.5 x 1.25 mm)","in_stock":14834,"datasheet":"https:\/\/www.renesas.com\/products\/microcontrollers\/r8c-r16c\/r8c-2x\/r8c-28.html","price":"$3.18 @ 1+","product_introduction":"The R5F21284SDSP#W4 is a Renesas R8C\/28 Group 16-bit microcontroller in a compact 20-pin LSSOP package. Based on the R8C CPU core running at 20 MHz, it provides 16 KB Flash, 1 KB RAM, and 1 KB x 2 blocks of on-chip data flash for parameter storage. Rich peripherals include UART, I2C\/SSU, LIN bus, 4-channel 10-bit ADC, and motor-control timers, making it suitable for cost-sensitive embedded control in appliances, office equipment, and industrial systems.","working_principle":"The R5F21284SDSP operates through four subsystems: (1) R8C CPU Core \u2014 16-bit CISC processor with 1 MB address space executes instructions from Flash with high code density, sharing register compatibility with the M16C family; (2) Memory Subsystem \u2014 16 KB Flash stores program code, 1 KB RAM provides working data storage, and 1 KB x 2 data flash blocks emulate EEPROM for non-volatile parameter storage; (3) Peripheral Subsystem \u2014 UART\/SSU\/I2C serial interfaces, 4-channel 10-bit ADC, 8-bit and 16-bit timers with motor control PWM capability; (4) System Protection \u2014 voltage detection circuit (VDC), power-on reset (POR), watchdog timer (WDT), and on-chip oscillators for reliable standalone operation.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>P1_0\/AN0<\/td>Port 1.0 \/ ADC channel 0<\/td><\/tr>
      2<\/td>P1_1\/AN1<\/td>Port 1.1 \/ ADC channel 1<\/td><\/tr>
      3<\/td>P1_2\/AN2<\/td>Port 1.2 \/ ADC channel 2<\/td><\/tr>
      4<\/td>P1_3\/AN3<\/td>Port 1.3 \/ ADC channel 3<\/td><\/tr>
      5<\/td>VSS<\/td>Ground<\/td><\/tr>
      6<\/td>VCC<\/td>Power supply (2.2-5.5V)<\/td><\/tr>
      7<\/td>P1_4\/TXD0<\/td>Port 1.4 \/ UART transmit<\/td><\/tr>
      8<\/td>P1_5\/RXD0<\/td>Port 1.5 \/ UART receive<\/td><\/tr>
      9-10<\/td>P3_0-3_1<\/td>Port 3 general I\/O<\/td><\/tr>
      11-20<\/td>P4-P5\/CLK\/RES<\/td>Port 4-5, clock, reset<\/td><\/tr><\/table>","application_scenarios":"
      • Air conditioner indoor unit motor control with sensor feedback via 10-bit ADC<\/li>
      • Printer paper-feed stepper motor controller with UART host interface<\/li>
      • Home appliance keypad\/LCD controller with I2C display interface<\/li>
      • Automotive door module sensor interface with LIN bus communication<\/li>
      • Industrial sensor transmitter with 4-channel analog input and UART output<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        R5F21286SDSP<\/td>Renesas<\/td>32KB Flash variant, same package<\/td><\/tr>
        R5F21288SDSP<\/td>Renesas<\/td>48KB Flash, more I\/O<\/td><\/tr>
        ATtiny1614<\/td>Microchip<\/td>8-bit AVR, 16KB, 20-SOIC<\/td><\/tr>
        PIC24FJ16GA002<\/td>Microchip<\/td>16-bit, 16KB, 28-SOIC<\/td><\/tr>
        STM32G030F6P6<\/td>ST<\/td>32-bit Cortex-M0+, 32KB, 20-TSSOP<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/9569","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=9569"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/9569\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=9569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=9569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=9569"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=9569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}