{"id":12322,"date":"2026-07-28T03:24:04","date_gmt":"2026-07-28T03:24:04","guid":{"rendered":"https:\/\/ic-vendor.com\/ly68s6400bait\/"},"modified":"2026-07-28T03:24:04","modified_gmt":"2026-07-28T03:24:04","slug":"ly68s6400bait","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/ly68s6400bait\/","title":{"rendered":"LY68S6400BAIT"},"content":{"rendered":"

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

The LY68S6400BAIT is a 64Mb (8M x 8-bit) Serial Pseudo-SRAM (PSRAM) from Lyontek Inc., operating at 1.8V with SPI\/QPI interface. It features a clock rate up to 133 MHz (non-page boundary crossing) and 84 MHz (page boundary crossing), with self-managed refresh and software reset. The BAIT variant is packaged in an 8-pin 2mm x 3mm DFN, ideal for space-constrained portable and IoT applications.<\/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
\u0627\u0644\u0643\u062b\u0627\u0641\u0629<\/td>\n64Mb (8M x 8 bits)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n1.65V to 1.95V<\/td>\n<\/tr>\n
\u0627\u0644\u0648\u0627\u062c\u0647\u0629<\/td>\nSPI \/ QPI (SDR mode)<\/td>\n<\/tr>\n
Max Clock Rate<\/td>\n133 MHz (wrapped), 84 MHz (linear burst crossing)<\/td>\n<\/tr>\n
Page Size<\/td>\n1024 bytes<\/td>\n<\/tr>\n
Burst Mode<\/td>\nLinear or 32-byte wrapped<\/td>\n<\/tr>\n
Refresh<\/td>\nSelf-managed<\/td>\n<\/tr>\n
\u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0627\u062d\u062a\u064a\u0627\u0637\u064a<\/td>\n200 \u00b5A max @ 85\u00b0C<\/td>\n<\/tr>\n
Operating Current<\/td>\n40 mA max<\/td>\n<\/tr>\n
Operating Temp<\/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
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n8-pin DFN (2mm x 3mm)<\/td>\n<\/tr>\n
\u062d\u0627\u0644\u0629 \u0627\u0644\u062c\u0632\u0621<\/td>\n\u0646\u0634\u0637<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 64Mb SPI\/QPI Serial Pseudo-SRAM at 1.8V<\/li>\n
  • Self-managed refresh \u2014 no external DRAM refresh required<\/li>\n
  • Clock rate up to 133 MHz (wrapped burst), 84 MHz (linear crossing)<\/li>\n
  • Linear burst or 32-byte wrapped burst via toggle command<\/li>\n
  • Software reset and built-in voltage sensor<\/li>\n
  • 50\u03a9 output drive strength LVCMOS<\/li>\n
  • Green \/ RoHS compliant package<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Wearable and IoT devices<\/li>\n
    • Portable consumer electronics<\/li>\n
    • Smart home appliances<\/li>\n
    • AR\/VR near-eye displays<\/li>\n
    • ESP32 \/ RP2350 PSRAM expansion<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LY68S6400BAIT is a 64Mb (8M x 8-bit) Serial Pseudo-SRAM (PSRAM) from Lyontek Inc., operating at 1.8V with SPI\/QPI interface. It features a clock rate up to 133 MHz (non-page boundary crossing) and 84 MHz (page boundary crossing), with self-managed refresh and software reset. The BAIT variant is packaged in an 8-pin 2mm […]<\/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":[19,13],"tags":[3316],"chip_brand":[3315],"class_list":["post-12322","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-ly68s6400bait","chip_brand-lyontek"],"acf":{"brief_explanation":"64Mb 1.8V SPI\/QPI PSRAM, 133MHz, 8Mx8, self-refresh, DFN-8 (2x3mm)","date_code":"","package_case":"DFN-8 (2mm x 3mm)","in_stock":12430,"datasheet":"https:\/\/www.lyontek.com.tw\/pdf\/ddr\/LY68S6400-1.2.pdf","price":"","product_introduction":"The LY68S6400BAIT is a 64Mb (8M x 8-bit) Serial Pseudo-SRAM from Lyontek Inc. operating at 1.8V with SPI and QPI interfaces. The PSRAM features self-managed refresh, eliminating the need for external DRAM refresh control and simplifying system design. With clock rates up to 133 MHz in wrapped burst mode and 84 MHz in linear burst with page boundary crossing, it delivers high bandwidth for embedded applications. The 8-pin 2mm x 3mm DFN package enables ultra-compact designs in wearable, IoT, and portable consumer electronics.","working_principle":"The LY68S6400 operates as a serial pseudo-SRAM using an internal DRAM array with integrated refresh management. The host accesses the memory through SPI or QPI commands. In SPI mode, data is transferred serially via SI\/SIO[0] and SO\/SIO[1]. In QPI mode, all four data lines SIO[0:3] transfer data simultaneously for 4x bandwidth. An internal refresh controller autonomously refreshes the DRAM cells, making the device appear as SRAM to the host. Linear burst mode allows continuous reads across page boundaries at up to 84 MHz, while wrapped burst reaches 133 MHz. Software reset restores the device to its default state.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>CE#<\/td>Input<\/td>Chip select, active low<\/td><\/tr>
      2<\/td>SO\/SIO[1]<\/td>I\/O<\/td>Serial output \/ Quad data[1]<\/td><\/tr>
      3<\/td>SIO[2]<\/td>I\/O<\/td>Quad data[2] \/ WP#<\/td><\/tr>
      4<\/td>VSS<\/td>Power<\/td>Ground<\/td><\/tr>
      5<\/td>SI\/SIO[0]<\/td>I\/O<\/td>Serial input \/ Quad data[0]<\/td><\/tr>
      6<\/td>SCLK<\/td>Input<\/td>Clock signal<\/td><\/tr>
      7<\/td>SIO[3]<\/td>I\/O<\/td>Quad data[3] \/ HOLD#<\/td><\/tr>
      8<\/td>VCC<\/td>Power<\/td>1.8V supply<\/td><\/tr><\/table>","application_scenarios":"
      • ESP32 \/ ESP32-S3 \/ RP2350 external PSRAM for Wi-Fi buffering<\/li>
      • Wearable device display frame buffer<\/li>
      • IoT sensor data logging with low standby power<\/li>
      • AR\/VR near-eye display frame storage<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Lyontek<\/td>LY68L6400SLIT<\/td>SOP-8<\/td>3.3V variant, same 64Mb<\/td><\/tr>
        APMemory<\/td>APS6404L-3SQR-SN<\/td>SOP-8<\/td>Drop-in 64Mb 3.3V replacement<\/td><\/tr>
        IPUS<\/td>IPS6404LSQ<\/td>SOP-8<\/td>64Mb 3.3V alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/12322","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=12322"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/12322\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=12322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=12322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=12322"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=12322"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}