{"id":9635,"date":"2026-07-05T08:29:04","date_gmt":"2026-07-05T08:29:04","guid":{"rendered":"https:\/\/materialparts.com\/is62wv5128bll-55t2lit\/"},"modified":"2026-07-05T08:29:04","modified_gmt":"2026-07-05T08:29:04","slug":"is62wv5128bll-55t2lit","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/is62wv5128bll-55t2lit\/","title":{"rendered":"IS62WV5128BLL-55T2LIT"},"content":{"rendered":"

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

The IS62WV5128BLL-55T2LIT is a 4Mb (512K x 8-bit) high-speed asynchronous CMOS static RAM manufactured by ISSI (Integrated Silicon Solution Inc.). Organized as 524,288 words by 8 bits, this SRAM features a fast 55ns access time with low power consumption. The BLL-55T2LIT variant comes in a 36-ball TFBGA (0.75mm pitch) package rated for industrial temperature range (-40\u00b0C to +85\u00b0C) with a 2.4V to 3.6V supply voltage.<\/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 Size<\/td>\n4 Mb (512K x 8)<\/td>\n<\/tr>\n
Organization<\/td>\n524,288 x 8 bits<\/td>\n<\/tr>\n
Access Time<\/td>\n55 ns<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2.4V to 3.6V<\/td>\n<\/tr>\n
Active Current<\/td>\n45 mA (Typ) @ 55ns<\/td>\n<\/tr>\n
\u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0627\u062d\u062a\u064a\u0627\u0637\u064a<\/td>\n8 mA (Typ)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n36-Ball TFBGA (6x6mm, 0.75mm pitch)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40\u00b0C to +85\u00b0C (Industrial)<\/td>\n<\/tr>\n
\u0627\u0644\u0648\u0627\u062c\u0647\u0629<\/td>\nAsynchronous Parallel<\/td>\n<\/tr>\n
Data Retention Voltage<\/td>\n1.5V (Min)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • High-speed 55ns access time for fast data retrieval<\/li>\n
  • Low power CMOS technology with 45mA active current<\/li>\n
  • Single 2.4V to 3.6V power supply operation<\/li>\n
  • Data retention down to 1.5V for battery backup applications<\/li>\n
  • Full static operation \u2014 no clock or refresh required<\/li>\n
  • Common I\/O with separate byte-limited output enable<\/li>\n
  • Industrial temperature range up to +85\u00b0C<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Networking and telecommunications equipment<\/li>\n
    • Industrial control and automation systems<\/li>\n
    • Embedded processor cache and buffer memory<\/li>\n
    • DSP and FPGA companion SRAM<\/li>\n
    • Medical and instrumentation data buffering<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The IS62WV5128BLL-55T2LIT is a 4Mb (512K x 8-bit) high-speed asynchronous CMOS static RAM manufactured by ISSI (Integrated Silicon Solution Inc.). Organized as 524,288 words by 8 bits, this SRAM features a fast 55ns access time with low power consumption. The BLL-55T2LIT variant comes in a 36-ball TFBGA (0.75mm pitch) package rated for industrial […]<\/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":[13,20],"tags":[898],"chip_brand":[210],"class_list":["post-9635","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","tag-is62wv5128bll-55t2lit","chip_brand-issi"],"acf":{"brief_explanation":"4Mb (512Kx8) async SRAM, 55ns, 2.4-3.6V, 36-ball TFBGA, industrial temp","date_code":"","package_case":"36-Ball TFBGA (6.0 x 6.0 x 1.0 mm, 0.75mm pitch)","in_stock":5840,"datasheet":"https:\/\/www.issi.com\/WW\/pdf\/62WV5128DA_DBLL.pdf","price":"$2.85 @ 1ku","product_introduction":"The ISSI IS62WV5128BLL-55T2LIT is a 4-megabit asynchronous CMOS static RAM organized as 524,288 words by 8 bits. Fabricated using ISSI's high-performance CMOS technology, this device delivers a fast 55ns maximum access time while maintaining low power consumption. The SRAM operates from a single 2.4V to 3.6V power supply and features data retention down to 1.5V, making it suitable for battery-backed applications. The BLL package variant utilizes a compact 36-ball TFBGA with 0.75mm ball pitch, ideal for space-constrained designs. The T2LIT suffix denotes the industrial temperature range (-40\u00b0C to +85\u00b0C) qualification. Full static operation means no clocks or refresh cycles are required, simplifying system design.","working_principle":"The IS62WV5128BLL-55T2LIT is an asynchronous static RAM that uses a six-transistor (6T) CMOS memory cell array. Each memory cell consists of two cross-coupled inverters and two access transistors, forming a bistable latch that stores one bit of data without requiring periodic refresh. Address inputs are decoded by row and column decoders to select the target memory cell. When Chip Enable (CE1) is active low and CE2 is active high, and Output Enable (OE) is asserted, the selected byte is driven onto the data I\/O pins through the sense amplifiers and output buffers. Write Enable (WE) controls the write operation, where data on the I\/O pins is written to the selected address. The 55ns access time is achieved through optimized decoder paths and fast sense amplifier design. Low-power standby mode is entered when the chip is deselected.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      A0-A18<\/td>Address Inputs<\/td>Input<\/td>19 address lines for 512K byte selection<\/td><\/tr>
      I\/O0-I\/O7<\/td>Data Bus<\/td>I\/O<\/td>8-bit bidirectional data bus<\/td><\/tr>
      CE1<\/td>Chip Enable 1<\/td>Input<\/td>Active low chip enable<\/td><\/tr>
      CE2<\/td>Chip Enable 2<\/td>Input<\/td>Active high chip enable<\/td><\/tr>
      OE<\/td>Output Enable<\/td>Input<\/td>Active low output enable<\/td><\/tr>
      WE<\/td>Write Enable<\/td>Input<\/td>Active low write enable<\/td><\/tr>
      VDD<\/td>Power<\/td>Power<\/td>2.4V to 3.6V supply voltage<\/td><\/tr>
      VSS<\/td>Ground<\/td>Power<\/td>Ground reference<\/td><\/tr><\/table>","application_scenarios":"
      • Networking router and switch packet buffer memory<\/li>
      • Embedded processor cache for DSP and FPGA systems<\/li>
      • Industrial PLC and CNC controller data buffering<\/li>
      • Medical imaging and diagnostic equipment working memory<\/li>
      • Telecommunications line card and baseband processing buffer<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Cypress<\/td>CY62148EV30LL-55ZSXI<\/td>TSOP-II-44<\/td>4Mb SRAM, 55ns, 3.3V<\/td><\/tr>
        ISSI<\/td>IS62WV5128DBLL-55TLI<\/td>TFBGA-36<\/td>Same spec, commercial temp<\/td><\/tr>
        Microchip<\/td>AS6C4008-55SIN<\/td>TSOP-II-32<\/td>4Mb SRAM, 55ns, 5V compatible<\/td><\/tr>
        Alliance<\/td>AS6C4008-55SIN<\/td>TSOP-II-32<\/td>4Mb SRAM, 55ns<\/td><\/tr>
        ISSI<\/td>IS62WV5128BLL-45T2LIT<\/td>TFBGA-36<\/td>45ns faster version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9635","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=9635"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9635\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=9635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=9635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=9635"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=9635"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}