{"id":11154,"date":"2026-07-24T14:06:36","date_gmt":"2026-07-24T14:06:36","guid":{"rendered":"https:\/\/ic-vendor.com\/at25sf041b-sshd-t\/"},"modified":"2026-07-24T14:06:36","modified_gmt":"2026-07-24T14:06:36","slug":"at25sf041b-sshd-t","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/at25sf041b-sshd-t\/","title":{"rendered":"AT25SF041B-SSHD-T"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The Renesas AT25SF041B-SSHD-T is a 4 Mbit SPI NOR Flash memory supporting Single, Dual, and Quad I\/O operations at up to 108 MHz clock frequency. With 512K x 8 organization and 2.5 V to 3.6 V supply, it is ideal for code and data storage in embedded systems.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
Density<\/td>\n4 Mbit (512 KB)<\/td>\n<\/tr>\n
Organization<\/td>\n512K x 8<\/td>\n<\/tr>\n
Interface<\/td>\nSPI – Quad I\/O<\/td>\n<\/tr>\n
Max Clock Frequency<\/td>\n108 MHz<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2.5 V to 3.6 V<\/td>\n<\/tr>\n
Write Cycle Time<\/td>\n50 \u00b5s (word), 2.4 ms (page)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-8 (5.05×3.99mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Single, Dual, and Quad SPI I\/O support<\/li>\n
  • 108 MHz clock for high-speed read<\/li>\n
  • Multiple erase block sizes (4K, 32K, 64K)<\/li>\n
  • 256-byte page programming<\/li>\n
  • Software and hardware write protection<\/li>\n
  • Deep power-down mode<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Embedded code storage<\/li>\n
    • Data logging and configuration storage<\/li>\n
    • Boot firmware storage<\/li>\n
    • IoT and industrial devices<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Renesas AT25SF041B-SSHD-T is a 4 Mbit SPI NOR Flash memory supporting Single, Dual, and Quad I\/O operations at up to 108 MHz clock frequency. With 512K x 8 organization and 2.5 V to 3.6 V supply, it is ideal for code and data storage in embedded systems. Key Specifications Density 4 Mbit […]<\/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],"tags":[2425],"chip_brand":[12],"class_list":["post-11154","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","tag-at25sf041b-sshd-t","chip_brand-renesas"],"acf":{"brief_explanation":"4Mbit SPI NOR Flash, Quad I\/O, 108MHz, 2.5-3.6V, SOIC-8, -40 to 85C","date_code":"","package_case":"SOIC-8 (5.05x3.99x1.5mm)","in_stock":5582,"datasheet":"https:\/\/www.renesas.com\/us\/en\/products\/memory-logic\/non-volatile-memory\/spi-nor-flash\/at25sf041b","price":"\/tmp\/tmpy5xbz9xz.sh.576 @ 1ku","product_introduction":"The AT25SF041B-SSHD-T from Renesas (formerly Adesto\/Dialog) is a 4 Mbit SPI Serial Flash memory device supporting Single, Dual, and Quad I\/O operations. Organized as 512K x 8 bits, it operates at clock frequencies up to 108 MHz for high-speed read operations in Quad I\/O mode. The device provides multiple erase block sizes (4 KB, 32 KB, 64 KB) for flexible data management, 256-byte page programming, and comprehensive write protection mechanisms. It operates from 2.5 V to 3.6 V supply in the -40\u00b0C to +85\u00b0C temperature range.","working_principle":"The AT25SF041B uses standard SPI command protocols for all operations. Read operations support Standard SPI (single data line), Dual Output, Dual I\/O, Quad Output, and Quad I\/O modes for increasing throughput. Programming is performed on a 256-byte page basis, with the device internally handling program and erase timing. Erase operations support 4 KB sector, 32 KB block, 64 KB block, and full chip erase commands. Write protection is implemented through Status Register bits and hardware WP pin. Deep power-down mode reduces standby current to microamp levels.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>CS<\/td>Input<\/td>Chip select (active low)<\/td><\/tr>
      2<\/td>SO (IO1)<\/td>I\/O<\/td>Serial output \/ Data 1<\/td><\/tr>
      3<\/td>WP (IO2)<\/td>I\/O<\/td>Write protect \/ Data 2<\/td><\/tr>
      4<\/td>GND<\/td>Ground<\/td>Ground<\/td><\/tr>
      5<\/td>SI (IO0)<\/td>I\/O<\/td>Serial input \/ Data 0<\/td><\/tr>
      6<\/td>SCK<\/td>Input<\/td>Serial clock<\/td><\/tr>
      7<\/td>HOLD (IO3)<\/td>I\/O<\/td>Hold \/ Data 3<\/td><\/tr>
      8<\/td>VCC<\/td>Power<\/td>Supply voltage<\/td><\/tr><\/table>","application_scenarios":"
      • Embedded system code and firmware storage<\/li>
      • Data logging and parameter storage<\/li>
      • Boot loader and BIOS storage<\/li>
      • IoT device configuration memory<\/li>
      • Industrial control program storage<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        AT25SF041B-SSHB-B<\/td>Renesas<\/td>Tube packaging variant<\/td><\/tr>
        AT25SF081B-SSHB-T<\/td>Renesas<\/td>8Mbit density upgrade<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=11154"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11154\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=11154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=11154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=11154"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=11154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}