{"id":10387,"date":"2026-07-19T13:07:40","date_gmt":"2026-07-19T13:07:40","guid":{"rendered":"https:\/\/ic-vendor.com\/at93c56b-mahm-t\/"},"modified":"2026-07-19T13:07:40","modified_gmt":"2026-07-19T13:07:40","slug":"at93c56b-mahm-t","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/at93c56b-mahm-t\/","title":{"rendered":"AT93C56B-MAHM-T"},"content":{"rendered":"

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

The AT93C56B-MAHM-T is a 2Kbit Microwire Serial EEPROM from Microchip in an 8-pin TSSOP package with military\/extended temperature range. It supports x8 (256 bytes) or x16 (128 words) organization selectable via the ORG pin, with software write protection.<\/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
Memory Density<\/td>\n2Kbit<\/td>\n<\/tr>\n
Organization<\/td>\n256 x 8 or 128 x 16 (ORG pin)<\/td>\n<\/tr>\n
\u0627\u0644\u0648\u0627\u062c\u0647\u0629<\/td>\nMicrowire (3-wire)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u0642\u0635\u0649 \u0644\u062a\u0631\u062f\u062f \u0627\u0644\u0633\u0627\u0639\u0629<\/td>\n2MHz<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2.7V to 5.5V<\/td>\n<\/tr>\n
Write Cycle Time<\/td>\n5ms max<\/td>\n<\/tr>\n
Endurance<\/td>\n1,000,000 cycles<\/td>\n<\/tr>\n
\u0627\u0644\u0627\u062d\u062a\u0641\u0627\u0638 \u0628\u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/td>\n100 years<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n8-TSSOP<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-55 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +125 \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
  • Microwire 3-wire serial interface<\/li>\n
  • ORG pin for x8\/x16 data width selection<\/li>\n
  • Software write protection (EWEN\/EWDS)<\/li>\n
  • Self-timed write cycle<\/li>\n
  • Wide military temperature range<\/li>\n
  • Compact TSSOP footprint<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Military and aerospace configuration storage<\/li>\n
    • Industrial controller parameters<\/li>\n
    • Telecom equipment settings<\/li>\n
    • Legacy system EEPROM replacement<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AT93C56B-MAHM-T is a 2Kbit Microwire Serial EEPROM from Microchip in an 8-pin TSSOP package with military\/extended temperature range. It supports x8 (256 bytes) or x16 (128 words) organization selectable via the ORG pin, with software write protection. Key Specifications Memory Density 2Kbit Organization 256 x 8 or 128 x 16 (ORG pin) […]<\/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":[40,4],"tags":[1693,1651,1678],"chip_brand":[134],"class_list":["post-10387","post","type-post","status-publish","format-standard","hentry","category-electrically-erasable-programmable-read-only-memory-eeprom","category-memory-chips","tag-at93c56b-mahm-t","tag-eeprom","tag-microwire","chip_brand-microchip"],"acf":{"brief_explanation":"2Kbit Microwire EEPROM, 256x8\/128x16, 2.7-5.5V, 8-TSSOP, -55~125\u00b0C","date_code":"","package_case":"8-TSSOP (4.4 x 3.0mm)","in_stock":3800,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/AT93C56B","price":"","product_introduction":"The AT93C56B-MAHM-T is a 2Kbit Microwire Serial EEPROM from Microchip with ORG pin-selectable x8 or x16 data organization. The Microwire 3-wire interface provides simple connection to legacy microcontrollers. Software write protection via EWEN\/EWDS commands prevents accidental data modification. The military\/extended temperature range (-55\u00b0C to +125\u00b0C) supports demanding aerospace and defense applications. The compact 8-pin TSSOP package suits space-constrained board designs.","working_principle":"The AT93C56B communicates via Microwire protocol using CS (Chip Select), SK (Serial Clock), and DI\/DO (Data In\/Out, time-multiplexed). The ORG pin selects 8-bit (256 x 8) or 16-bit (128 x 16) organization. All instructions start with a START bit (1), followed by an opcode and address. Write operations require EWEN command first, then the write command, followed by EWDS to disable. The device supports READ, WRITE, ERASE, ERAL (erase all), and WRAL (write all) commands. All erase\/write cycles are self-timed within 5ms maximum.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>CS<\/td>Chip Select (active high)<\/td><\/tr>
      2<\/td>SK<\/td>Serial Clock<\/td><\/tr>
      3<\/td>DI<\/td>Data Input<\/td><\/tr>
      4<\/td>VSS<\/td>Ground<\/td><\/tr>
      5<\/td>DO<\/td>Data Output<\/td><\/tr>
      6<\/td>ORG<\/td>Organization Select (x8 low \/ x16 high)<\/td><\/tr>
      7<\/td>NC<\/td>No Connect<\/td><\/tr>
      8<\/td>VCC<\/td>Power Supply<\/td><\/tr><\/table>","application_scenarios":"
      • Military and aerospace equipment configuration<\/li>
      • Industrial controller parameter and calibration storage<\/li>
      • Telecom equipment settings and line card config<\/li>
      • Legacy Microwire system EEPROM replacement<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Density<\/th>Notes<\/th><\/tr>
        Microchip<\/td>AT93C56B-SSHM-B<\/td>2Kbit<\/td>SOIC-8 package<\/td><\/tr>
        Microchip<\/td>93LC56B-I\/ST<\/td>2Kbit<\/td>Microchip Microwire, TSSOP<\/td><\/tr>
        ON Semi<\/td>CAT93C56VI<\/td>2Kbit<\/td>Microwire equivalent<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/comments?post=10387"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10387\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=10387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=10387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=10387"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=10387"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}