{"id":10363,"date":"2026-07-19T12:47:13","date_gmt":"2026-07-19T12:47:13","guid":{"rendered":"https:\/\/materialparts.com\/at89ls52-16au\/"},"modified":"2026-07-19T12:47:13","modified_gmt":"2026-07-19T12:47:13","slug":"at89ls52-16au","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/at89ls52-16au\/","title":{"rendered":"AT89LS52-16AU"},"content":{"rendered":"

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

The AT89LS52-16AU is a low-voltage 8-bit 8051-based microcontroller from Microchip (formerly Atmel) with 8KB of in-system programmable Flash memory. It operates from 2.7V to 4.0V at up to 16MHz, providing a cost-effective solution for embedded control applications in a 44-pin TQFP package.<\/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\n\n\n\n\n
\u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0627\u062a<\/td>\n8051 (MCS-51 compatible)<\/td>\n<\/tr>\n
Core Size<\/td>\n8-bit<\/td>\n<\/tr>\n
Max Frequency<\/td>\n16 \u0645\u064a\u062c\u0627 \u0647\u0631\u062a\u0632<\/td>\n<\/tr>\n
\u0630\u0627\u0643\u0631\u0629 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c<\/td>\n8KB Flash (ISP)<\/td>\n<\/tr>\n
RAM<\/td>\n256 bytes<\/td>\n<\/tr>\n
I\/O Pins<\/td>\n32<\/td>\n<\/tr>\n
\u0627\u0644\u0645\u0624\u0642\u062a\u0627\u062a<\/td>\n3 x 16-bit<\/td>\n<\/tr>\n
UART<\/td>\n1 (full duplex)<\/td>\n<\/tr>\n
\u0645\u0635\u0627\u062f\u0631 \u0627\u0644\u0645\u0642\u0627\u0637\u0639\u0629<\/td>\n8<\/td>\n<\/tr>\n
\u0645\u0624\u0642\u0650\u0651\u062a \u0627\u0644\u0645\u0631\u0627\u0642\u0628\u0629<\/td>\nYes<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2.7V to 4.0V<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n44-TQFP (10x10mm)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +85 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Low-voltage operation (2.7V-4.0V) \u2014 3.3V compatible<\/li>\n
  • ISP Flash \u2014 in-system programming via SPI<\/li>\n
  • Dual data pointer for faster memory access<\/li>\n
  • Power-off flag for power-fail detection<\/li>\n
  • Idle and power-down modes<\/li>\n
  • Interrupt recovery from power-down<\/li>\n
  • Three-level program memory lock<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • \u0627\u0644\u062a\u062d\u0643\u0645 \u0627\u0644\u0635\u0646\u0627\u0639\u064a \u0648\u0627\u0644\u0623\u062a\u0645\u062a\u0629 \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629<\/li>\n
    • Consumer electronics<\/li>\n
    • Embedded instrumentation<\/li>\n
    • Motor control systems<\/li>\n
    • Legacy 8051 system migration<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AT89LS52-16AU is a low-voltage 8-bit 8051-based microcontroller from Microchip (formerly Atmel) with 8KB of in-system programmable Flash memory. It operates from 2.7V to 4.0V at up to 16MHz, providing a cost-effective solution for embedded control applications in a 44-pin TQFP package. Key Specifications Core 8051 (MCS-51 compatible) Core Size 8-bit Max Frequency […]<\/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":[1655,1654,1656],"chip_brand":[134],"class_list":["post-10363","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","tag-8051-mcu","tag-at89ls52-16au","tag-microcontroller","chip_brand-microchip"],"acf":{"brief_explanation":"8051 8-bit MCU, 8KB Flash ISP, 256B RAM, 16MHz, 2.7-4V, 44-TQFP, -40~85\u00b0C","date_code":"","package_case":"44-TQFP (10x10mm)","in_stock":6200,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/AT89LS52","price":"","product_introduction":"The AT89LS52-16AU is a low-voltage 8-bit microcontroller based on the industry-standard 8051 architecture, featuring 8KB of in-system programmable Flash memory. Operating from 2.7V to 4.0V at up to 16MHz, it provides 3.3V-compatible operation ideal for mixed-voltage systems. The device includes 256 bytes of RAM, 32 I\/O lines, three 16-bit timers, a full-duplex UART, watchdog timer, and dual data pointers. ISP capability allows firmware updates without removing the device from the circuit.","working_principle":"The AT89LS52 executes the standard MCS-51 instruction set with most instructions completing in 1-2 machine cycles (12 oscillator periods per machine cycle at 16MHz). The CPU fetches instructions from the 8KB on-chip Flash, accesses data in the 256-byte internal RAM, and communicates through the 32 general-purpose I\/O lines organized as Port 0-3. The three 16-bit timers can operate in modes 0-3 including capture, auto-reload, and baud rate generation. The UART supports full-duplex serial communication with programmable baud rates. ISP programming is performed through the SPI interface (P1.5=MOSI, P1.6=MISO, P1.7=SCK).","pin_description":"
      Port<\/th>Pins<\/th>Functions<\/th><\/tr>
      P0<\/td>8 pins<\/td>General I\/O, Address\/Data bus (AD0-AD7)<\/td><\/tr>
      P1<\/td>8 pins<\/td>General I\/O, T2\/T2EX, ISP (MOSI\/MISO\/SCK)<\/td><\/tr>
      P2<\/td>8 pins<\/td>General I\/O, Address bus high (A8-A15)<\/td><\/tr>
      P3<\/td>8 pins<\/td>General I\/O, UART\/INT\/Timers\/WR\/RD<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial PLC and motor drive control<\/li>\n
      • Consumer appliance microcontroller<\/li>\n
      • Embedded instrumentation and measurement<\/li>\n
      • Legacy 80C51\/80C52 system upgrade to 3.3V<\/li>\n
      • Access control and security systems<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Flash<\/th>Notes<\/th><\/tr>
        Microchip<\/td>AT89S52-16AU<\/td>8KB<\/td>5V version (4.5-5.5V)<\/td><\/tr>
        Silicon Labs<\/td>C8051F320<\/td>16KB<\/td>8051 with USB, higher integration<\/td><\/tr>
        Nuvoton<\/td>N78E052A-16A<\/td>8KB<\/td>8051 equivalent, 5V<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/10363","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=10363"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/10363\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=10363"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=10363"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=10363"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=10363"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}