{"id":3689,"date":"2026-06-08T02:02:12","date_gmt":"2026-06-08T02:02:12","guid":{"rendered":"https:\/\/materialparts.com\/w78e052ddg\/"},"modified":"2026-06-08T02:02:12","modified_gmt":"2026-06-08T02:02:12","slug":"w78e052ddg","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/w78e052ddg\/","title":{"rendered":"W78E052DDG"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The W78E052DDG from Nuvoton is an 8-bit 8052-compatible microcontroller with 8KB Flash, 256B RAM, operating up to 40MHz in a 40-pin DIP package. It supports wide voltage operation from 2.4V to 5.5V.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0627\u062a<\/td>\n8052 (MCS-51 compatible)<\/td>\n<\/tr>\n
Max Clock<\/td>\n40MHz (12T mode)<\/td>\n<\/tr>\n
Flash Memory<\/td>\n8KB<\/td>\n<\/tr>\n
RAM<\/td>\n256 bytes<\/td>\n<\/tr>\n
I\/O Pins<\/td>\n32<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2.4V to 5.5V<\/td>\n<\/tr>\n
\u0627\u0644\u0645\u0624\u0642\u062a\u0627\u062a<\/td>\n3 x 16-bit<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 to 85 C<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • MCS-51 compatible instruction set<\/li>\n
  • 8KB Flash program memory<\/li>\n
  • 32 I\/O pins across 4 ports<\/li>\n
  • Full-duplex UART serial port<\/li>\n
  • Three 16-bit timers\/counters<\/li>\n
  • Power-on reset and watchdog timer<\/li>\n
  • EMI reduction mode<\/li>\n
  • 6T\/12T mode selectable<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Industrial control systems<\/li>\n
    • Home automation devices<\/li>\n
    • Consumer electronics<\/li>\n
    • Embedded control applications<\/li>\n
    • Legacy 8051 system replacements<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The W78E052DDG from Nuvoton is an 8-bit 8052-compatible microcontroller with 8KB Flash, 256B RAM, operating up to 40MHz in a 40-pin DIP package. It supports wide voltage operation from 2.4V to 5.5V. Key Specifications Core 8052 (MCS-51 compatible) Max Clock 40MHz (12T mode) Flash Memory 8KB RAM 256 bytes I\/O Pins 32 Supply […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,25],"tags":[],"chip_brand":[185],"class_list":["post-3689","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-nuvoton"],"acf":{"brief_explanation":"8-bit 8052 MCU, 8KB Flash, 256B RAM, 40MHz, 40-DIP, 2.4-5.5V","date_code":"","package_case":"40-DIP (52.2 x 15.24 mm)","in_stock":2884,"datasheet":"https:\/\/www.nuvoton.com\/export\/resource-files\/W78E052D_W78E054D_Data_Sheet_EN_Rev.pdf","price":"$1.17 @ 1ku","product_introduction":"The W78E052DDG from Nuvoton Technology is an 8-bit microcontroller based on the industry-standard 8052 core with MCS-51 instruction set compatibility. It features 8KB of on-chip Flash program memory, 256 bytes of SRAM, and 32 I\/O pins across four 8-bit ports. The device operates at clock frequencies up to 40MHz in 12T mode (20MHz in 6T mode) with a wide supply voltage range of 2.4V to 5.5V. Peripherals include a full-duplex UART serial port, three 16-bit timers\/counters, power-on reset, and a watchdog timer. The W78E052DDG offers an EMI reduction mode for lower electromagnetic emissions in sensitive applications. The device is available in a 40-pin through-hole DIP package, making it suitable for prototyping and legacy system maintenance. Note: This product is approaching end-of-life status.","working_principle":"The W78E052DDG operates as a classic 8052 microcontroller with enhanced features. Key subsystems include: (1) 8052 CPU Core - executes the MCS-51 instruction set with 8-bit data bus and 16-bit address bus, supporting 12T or 6T clock modes; (2) Flash Memory - 8KB of on-chip programmable Flash for program storage; (3) SRAM - 256 bytes of internal data RAM, including the 128-byte special function register (SFR) space; (4) I\/O Ports - four 8-bit bidirectional ports (P0-P3) with alternate function mapping for UART, timers, and interrupts; (5) Timer\/Counter Unit - three 16-bit timers (Timer 0, Timer 1, Timer 2) with multiple operating modes including capture and auto-reload; (6) Serial Port - full-duplex UART with four operating modes supporting synchronous and asynchronous communication.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1-8<\/td>P1.0-P1.7<\/td>I\/O<\/td>Port 1 bidirectional I\/O<\/td><\/tr>
      9<\/td>RST<\/td>Input<\/td>Reset (active high)<\/td><\/tr>
      10-17<\/td>P3.0-P3.7<\/td>I\/O<\/td>Port 3 \/ Alternate functions (RXD, TXD, INT0-1, T0-1, WR, RD)<\/td><\/tr>
      18<\/td>XTAL2<\/td>I\/O<\/td>Crystal oscillator output<\/td><\/tr>
      19<\/td>XTAL1<\/td>I\/O<\/td>Crystal oscillator input<\/td><\/tr>
      20<\/td>VSS<\/td>Power<\/td>Ground<\/td><\/tr>
      21-28<\/td>P2.0-P2.7<\/td>I\/O<\/td>Port 2 \/ Upper address bus<\/td><\/tr>
      29<\/td>PSEN<\/td>Output<\/td>Program store enable<\/td><\/tr>
      30<\/td>ALE<\/td>Output<\/td>Address latch enable<\/td><\/tr>
      31<\/td>EA<\/td>Input<\/td>External access enable<\/td><\/tr>
      32-39<\/td>P0.7-P0.0<\/td>I\/O<\/td>Port 0 \/ Multiplexed address\/data bus<\/td><\/tr>
      40<\/td>VDD<\/td>Power<\/td>Power supply (2.4V to 5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial control and automation with 8051 code base<\/li>
      • Home automation and appliance controllers<\/li>
      • Consumer electronics with legacy 8051 designs<\/li>
      • Educational and prototyping platforms with DIP package<\/li>
      • Embedded control requiring UART serial communication<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Nuvoton<\/td>W78E054DDG<\/td>40-DIP<\/td>16KB Flash, higher density<\/td><\/tr>
        Microchip<\/td>AT89S52-24PU<\/td>40-DIP<\/td>8KB Flash, ISP, 8052<\/td><\/tr>
        STMicroelectronics<\/td>STC89C52RC<\/td>40-DIP<\/td>8KB Flash, 8051 compatible<\/td><\/tr>
        Silicon Labs<\/td>C8051F020-GQR<\/td>64-TQFP<\/td>Mixed-signal 8051, 64KB Flash<\/td><\/tr>
        Nuvoton<\/td>N76E003AT20<\/td>20-SOIC<\/td>18KB Flash, 1T 8051, modern<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3689","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=3689"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3689\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3689"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3689"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}