{"id":3006,"date":"2026-05-29T04:38:49","date_gmt":"2026-05-29T04:38:49","guid":{"rendered":"https:\/\/materialparts.com\/sn74hc245pwr\/"},"modified":"2026-05-30T01:12:53","modified_gmt":"2026-05-30T01:12:53","slug":"sn74hc245pwr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/sn74hc245pwr\/","title":{"rendered":"SN74HC245PWR"},"content":{"rendered":"

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

The SN74HC245PWR is an octal bus transceiver with 3-state outputs from Texas Instruments. Designed for asynchronous two-way communication between data buses, it features a wide operating voltage range of 2V to 6V, 12 ns typical propagation delay, and +\/-6 mA output drive at 5V, housed in a 20-pin TSSOP package.<\/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
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2V to 6V<\/td>\n<\/tr>\n
\u0639\u062f\u062f \u0627\u0644\u0642\u0646\u0648\u0627\u062a<\/td>\n8<\/td>\n<\/tr>\n
Propagation Delay (tpd)<\/td>\n12 ns typical<\/td>\n<\/tr>\n
Output Drive<\/td>\n+\/-6 mA at 5V<\/td>\n<\/tr>\n
ICC (Max)<\/td>\n80 uA<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nTSSOP-20 (6.5 x 4.4 mm)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/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<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Wide operating voltage range: 2V to 6V<\/li>\n
  • High-current 3-state outputs drive bus lines directly<\/li>\n
  • Low power consumption: 80 uA max ICC<\/li>\n
  • Balanced output propagation delays<\/li>\n
  • Positive input clamp diodes for ESD protection<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Microprocessor system bus driving<\/li>\n
    • Memory address\/data bus buffering<\/li>\n
    • Communication systems<\/li>\n
    • Level translation between logic domains<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SN74HC245PWR is an octal bus transceiver with 3-state outputs from Texas Instruments. Designed for asynchronous two-way communication between data buses, it features a wide operating voltage range of 2V to 6V, 12 ns typical propagation delay, and +\/-6 mA output drive at 5V, housed in a 20-pin TSSOP package. Key Specifications Supply […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13],"tags":[],"chip_brand":[138],"class_list":["post-3006","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Octal bus transceiver, 3-state outputs, 2-6V, 8-channel, TSSOP-20","date_code":"","package_case":"TSSOP-20 (6.5 x 4.4 mm)","in_stock":7654,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/sn74hc245.pdf","price":"$0.523 @ 1ku","product_introduction":"The SN74HC245PWR from Texas Instruments is an octal bus transceiver with 3-state outputs designed for asynchronous bidirectional communication between data buses. It allows data transmission from bus A to bus B or from bus B to bus A, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can disable the device, effectively isolating the buses. With a wide operating voltage range and high-current 3-state outputs, this device is ideal for bus driving and buffering applications.","working_principle":"The SN74HC245PWR operates as a bidirectional bus transceiver controlled by two signals. The DIR pin determines data flow direction: high level sends data from A to B, low level from B to A. The OE pin enables or disables the outputs: when OE is low, the transceiver is active; when OE is high, all outputs enter a high-impedance state, isolating the buses. Each of the 8 channels independently passes data in the selected direction with typical propagation delay of 12 ns.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>DIR<\/td>Input<\/td>Direction control (A-to-B or B-to-A)<\/td><\/tr>
      2-9<\/td>A1-A8<\/td>Bidirectional<\/td>Bus A data lines<\/td><\/tr>
      10<\/td>GND<\/td>Ground<\/td>Ground reference<\/td><\/tr>
      11-18<\/td>B8-B1<\/td>Bidirectional<\/td>Bus B data lines<\/td><\/tr>
      19<\/td>OE<\/td>Input<\/td>Output enable (active low)<\/td><\/tr>
      20<\/td>VCC<\/td>Power<\/td>Supply voltage 2V-6V<\/td><\/tr><\/table>","application_scenarios":"
      • Microprocessor system bus buffering and driving<\/li>
      • Memory interface address\/data bus transceiving<\/li>
      • Industrial control bus communication<\/li>
      • Board-to-board data communication<\/li>
      • Level translation between mixed-voltage domains<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>SN74HCT245PWR<\/td>TSSOP-20<\/td>TTL-compatible inputs, 4.5-5.5V<\/td><\/tr>
        TI<\/td>SN74HC245DW<\/td>SOIC-20<\/td>Wider SOIC package<\/td><\/tr>
        NXP<\/td>74HC245PW<\/td>TSSOP-20<\/td>Pin-compatible alternative<\/td><\/tr>
        onsemi<\/td>MC74HC245ADWR2G<\/td>SOIC-20<\/td>Equivalent function<\/td><\/tr>
        TI<\/td>SN74LVC245APWR<\/td>TSSOP-20<\/td>Low-voltage version, 1.65-3.6V<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3006","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=3006"}],"version-history":[{"count":2,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3006\/revisions"}],"predecessor-version":[{"id":3037,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3006\/revisions\/3037"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3006"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3006"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3006"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3006"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}