{"id":7184,"date":"2026-06-23T06:13:05","date_gmt":"2026-06-23T06:13:05","guid":{"rendered":"https:\/\/materialparts.com\/hef4094bt-2\/"},"modified":"2026-06-23T06:13:05","modified_gmt":"2026-06-23T06:13:05","slug":"hef4094bt-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/hef4094bt-2\/","title":{"rendered":"HEF4094BT"},"content":{"rendered":"

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

The HEF4094BT from Nexperia is an 8-bit serial-in\/serial-or-parallel-out shift register with storage register and 3-state outputs in a SOIC-16 package. With separate shift and storage clocks, it enables serial-to-parallel data conversion and cascaded display driving.<\/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
\u0627\u0644\u0648\u0638\u064a\u0641\u0629<\/td>\n8-bit shift-and-store register<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n3 V to 15 V<\/td>\n<\/tr>\n
Outputs<\/td>\n8 parallel (3-state) + 2 serial cascade<\/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>\n28 MHz+ (at 15V)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n+\/-3.4 mA (min at 5V)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40C to +125C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 8-bit shift register with separate storage register<\/li>\n
  • 3-state parallel outputs for bus sharing<\/li>\n
  • Dual serial outputs (QS1, QS2) for easy cascading<\/li>\n
  • Separate shift (CP) and storage (STR) clocks<\/li>\n
  • Output enable (OE) for 3-state bus control<\/li>\n
  • Wide 3V to 15V supply range with CMOS low power<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • LED display multiplexing and driver cascading<\/li>\n
    • Serial-to-parallel data expansion for MCU I\/O<\/li>\n
    • Remote control holding register for industrial automation<\/li>\n
    • Cascaded shift register chains for large display driving<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The HEF4094BT from Nexperia is an 8-bit serial-in\/serial-or-parallel-out shift register with storage register and 3-state outputs in a SOIC-16 package. With separate shift and storage clocks, it enables serial-to-parallel data conversion and cascaded display driving. Key Specifications Function 8-bit shift-and-store register Supply Voltage 3 V to 15 V Outputs 8 parallel (3-state) + […]<\/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":[],"chip_brand":[140],"class_list":["post-7184","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","chip_brand-nexperia"],"acf":{"brief_explanation":"8-bit shift register, storage register, 3-state output, SOIC-16, cascade, serial-to-parallel","date_code":"","package_case":"SOIC-16 (9.90 x 3.90 x 1.50 mm)","in_stock":11136,"datasheet":"https:\/\/assets.nexperia.com\/documents\/data-sheet\/HEF4094B.pdf","price":"$0.20 @ 1ku","product_introduction":"The HEF4094BT from Nexperia is an 8-bit serial-in\/serial-or-parallel-out shift register with a storage register and 3-state outputs in a SOIC-16 package. The device accepts serial data at the D input and shifts it through an 8-bit shift register on the low-to-high transition of the clock (CP). The shift register data is transferred to an 8-bit storage register when the strobe (STR) input is high. The storage register outputs (QP0-QP7) are enabled when the output enable (OE) is high, and placed in the high-impedance state when OE is low. Two serial cascade outputs are provided: QS1 updates on the rising clock edge for fast cascade operation, while QS2 updates on the falling clock edge for slow-edge cascade compatibility. This dual-output feature enables flexible cascading of multiple devices for driving large LED displays or expanding I\/O channels. The separate shift and storage clocks allow new data to be shifted in while the current output data remains stable, eliminating display flicker in multiplexed applications. The device operates from 3V to 15V with CMOS low power dissipation.","working_principle":"The HEF4094BT combines an 8-bit shift register with an 8-bit storage register and 3-state output buffers. (1) Shift Register: Serial data at the D input is shifted through 8 flip-flop stages on each rising edge of the CP clock. After 8 clock cycles, the first data bit appears at stage 7 (the last stage). (2) Cascade Outputs: QS1 provides the stage 7 output on the rising CP edge for fast cascade connection. QS2 provides the same data on the falling CP edge for slow-edge cascade. These outputs connect to the D input of the next HEF4094BT in the chain. (3) Storage Register: When STR is high, the shift register contents are copied into the parallel storage register on the next CP rising edge. The storage register holds the output data stable while new data is being shifted in. (4) 3-State Outputs: The QP0-QP7 outputs reflect the storage register contents when OE is high. When OE is low, all parallel outputs are in the high-impedance state, allowing multiple devices to share the same output bus. The OE control does not affect the shift or storage register contents. (5) Cascading: Multiple HEF4094BT devices can be cascaded by connecting QS1 or QS2 of one device to the D input of the next, with all devices sharing the same CP, STR, and OE signals.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>STR<\/td>Input<\/td>Strobe (storage register load)<\/td><\/tr>
      2<\/td>D<\/td>Input<\/td>Serial data input<\/td><\/tr>
      3<\/td>CP<\/td>Input<\/td>Clock (shift register, rising edge)<\/td><\/tr>
      4<\/td>QP0<\/td>Output<\/td>Parallel output bit 0 (3-state)<\/td><\/tr>
      5<\/td>QP1<\/td>Output<\/td>Parallel output bit 1 (3-state)<\/td><\/tr>
      6<\/td>QP2<\/td>Output<\/td>Parallel output bit 2 (3-state)<\/td><\/tr>
      7<\/td>QP3<\/td>Output<\/td>Parallel output bit 3 (3-state)<\/td><\/tr>
      8<\/td>VSS<\/td>Ground<\/td>Ground (0V)<\/td><\/tr>
      9<\/td>QS1<\/td>Output<\/td>Serial cascade output (rising edge)<\/td><\/tr>
      10<\/td>QS2<\/td>Output<\/td>Serial cascade output (falling edge)<\/td><\/tr>
      11<\/td>QP7<\/td>Output<\/td>Parallel output bit 7 (3-state)<\/td><\/tr>
      12<\/td>QP6<\/td>Output<\/td>Parallel output bit 6 (3-state)<\/td><\/tr>
      13<\/td>QP5<\/td>Output<\/td>Parallel output bit 5 (3-state)<\/td><\/tr>
      14<\/td>QP4<\/td>Output<\/td>Parallel output bit 4 (3-state)<\/td><\/tr>
      15<\/td>OE<\/td>Input<\/td>Output enable (active high)<\/td><\/tr>
      16<\/td>VDD<\/td>Power<\/td>Supply voltage (3-15V)<\/td><\/tr><\/table>","application_scenarios":"
      • LED display multiplexing and driver cascading with 3-state outputs<\/li>
      • Serial-to-parallel data expansion for MCU I\/O with storage register<\/li>
      • Remote control holding register for industrial automation<\/li>
      • Cascaded shift register chains for large LED display driving with QS1\/QS2<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>CD4094BE<\/td>DIP-16<\/td>Through-hole equivalent<\/td><\/tr>
        Nexperia<\/td>74HC595D<\/td>SOIC-16<\/td>HC family, 2-6V, popular alternative<\/td><\/tr>
        TI<\/td>SN74HC595DR<\/td>SOIC-16<\/td>HC family, pin-different<\/td><\/tr>
        onsemi<\/td>MC74HC595ADTR2G<\/td>TSSOP-16<\/td>HC family, smaller package<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7184","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=7184"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7184\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7184"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7184"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7184"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7184"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}