{"id":2155,"date":"2026-05-14T07:37:53","date_gmt":"2026-05-14T07:37:53","guid":{"rendered":"https:\/\/materialparts.com\/sn74lvc2g241dcur\/"},"modified":"2026-05-15T06:55:54","modified_gmt":"2026-05-15T06:55:54","slug":"sn74lvc2g241dcur","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/sn74lvc2g241dcur\/","title":{"rendered":"SN74LVC2G241DCUR"},"content":{"rendered":"

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

SN74LVC2G241DCUR \u662f\u4e00\u6b3e\u5177\u6709 3 \u6001\u8f93\u51fa\u7684\u53cc\u901a\u9053\u975e\u53cd\u76f8\u7f13\u51b2\u5668\u548c\u7ebf\u8def\u9a71\u52a8\u5668\uff0c\u7531 Texas Instruments \u751f\u4ea7\uff0c\u5c5e\u4e8e LVC\uff08\u4f4e\u538b CMOS\uff09\u903b\u8f91\u7cfb\u5217\u3002\u8be5\u5668\u4ef6\u4e13\u4e3a 1.65 V \u81f3 5.5 V VCC \u5de5\u4f5c\u7535\u538b\u800c\u8bbe\u8ba1\uff0c\u662f\u4e24\u4e2a\u72ec\u7acb\u7684 1 \u4f4d\u7ebf\u8def\u9a71\u52a8\u5668\uff0c\u5177\u6709\u72ec\u7acb\u7684\u8f93\u51fa\u4f7f\u80fd\uff081OE\u30012OE\uff09\u63a7\u5236\u8f93\u5165\uff0c\u975e\u5e38\u9002\u5408\u9700\u8981\u9009\u62e9\u6027\u4fe1\u53f7\u8def\u7531\u7684\u603b\u7ebf\u578b\u5e94\u7528\u3002DCU \u5c01\u88c5\uff08VSSOP-8\uff09\u4ec5\u5360 2.0 x 3.1 \u6beb\u7c73\u7684\u7535\u8def\u677f\u7a7a\u95f4\uff0c\u5b9e\u73b0\u4e86\u9ad8\u5bc6\u5ea6 PCB \u5e03\u5c40\u3002\u4e3b\u8981\u4eae\u70b9\u5305\u62ec\uff1a3.3 V \u65f6\u6700\u5927\u4f20\u64ad\u5ef6\u8fdf 4.1 ns\u30013.3 V \u65f6 \u00b124 mA \u5e73\u8861\u8f93\u51fa\u9a71\u52a8\u3001\u6700\u9ad8 5.5 V \u7684\u8fc7\u538b\u5bb9\u9650\u8f93\u5165\u4ee5\u53ca\u652f\u6301\u5b9e\u65f6\u63d2\u5165\u548c\u90e8\u5206\u6389\u7535\u64cd\u4f5c\u7684 Ioff \u7535\u8def\u3002\u8be5\u5668\u4ef6\u8fd8\u53ef\u7528\u4f5c\u5411\u4e0b\u8f6c\u6362\u5668\uff0c\u5c06\u9ad8\u8fbe 5.5 V \u7684\u8f93\u5165\u903b\u8f91\u7535\u5e73\u5411\u4e0b\u8f6c\u6362\u4e3a VCC \u8f68\u7535\u538b\u3002.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u903b\u8f91\u5bb6\u65cf<\/td>\nLVC\uff08\u4f4e\u7535\u538b CMOS\uff09<\/td>\n<\/tr>\n
\u901a\u9053\u6570<\/td>\n2<\/td>\n<\/tr>\n
\u914d\u7f6e<\/td>\n2 x 1 \u4f4d\u975e\u53cd\u76f8\u7f13\u51b2\u5668\/\u9a71\u52a8\u5668<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b\u8303\u56f4 (VCC)<\/td>\n1.65 V \u81f3 5.5 V<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n0 V \u81f3 5.5 V\uff08\u8010\u8fc7\u538b\uff09<\/td>\n<\/tr>\n
\u4f20\u64ad\u5ef6\u8fdf\uff08tpd\uff0c\u6700\u5927\u503c\uff09<\/td>\n4.1 \u6beb\u5fae\u79d2\uff0c\u7535\u538b 3.3 V<\/td>\n<\/tr>\n
\u8f93\u51fa\u9a71\u52a8\u7535\u6d41\uff08IOH\/IOL\uff0c3.3 V \u65f6\uff09<\/td>\n\u00b124 \u6beb\u5b89<\/td>\n<\/tr>\n
\u8f93\u51fa\u9a71\u52a8\u7535\u6d41\uff08IOH\/IOL\uff0c4.5 V \u65f6\uff09<\/td>\n\u00b132 mA<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6e90\u7535\u6d41\uff08ICC\uff0c\u6700\u5927\u503c\uff09<\/td>\n10 \u00b5A<\/td>\n<\/tr>\n
\u8f93\u51fa\u7c7b\u578b<\/td>\n3 \u5dde<\/td>\n<\/tr>\n
\u8f93\u5165\u7c7b\u578b<\/td>\n\u6807\u51c6 CMOS<\/td>\n<\/tr>\n
\u6781\u6027<\/td>\n\u975e\u9006\u53d8\u5f0f<\/td>\n<\/tr>\n
\u8f93\u51fa\u542f\u7528\u6709\u6548\u7535\u5e73<\/td>\n1OE\uff1a \u4f4e\u7535\u5e73\u6709\u6548\uff1b2OE\uff1a \u9ad8\u7535\u5e73\u6709\u6548<\/td>\n<\/tr>\n
IOH = -24 mA \u65f6\u7684 VOH\uff0c3.3 V<\/td>\n2.4 V\uff08\u6700\u5c0f\u503c\uff09<\/td>\n<\/tr>\n
IOL = 24 mA\u30013.3 V \u65f6\u7684 VOL<\/td>\n0.4 V\uff08\u6700\u5927\u503c\uff09<\/td>\n<\/tr>\n
\u8f93\u51fa\u63a5\u5730\u53cd\u5f39\uff08VOLP\uff0c\u5178\u578b\u503c\uff09<\/td>\n< VCC = 3.3 V \u65f6\u4e3a 0.8 V<\/td>\n<\/tr>\n
\u8f93\u51fa VOH \u6b20\u538b\uff08VOHV\uff0c\u5178\u578b\u503c\uff09<\/td>\nVCC = 3.3 V \u65f6 > 2 V<\/td>\n<\/tr>\n
Ioff \u652f\u6301<\/td>\n\u662f\uff08\u5b9e\u65f6\u63d2\u5165\/\u90e8\u5206\u65ad\u7535\uff09<\/td>\n<\/tr>\n
\u95e9\u9501\u6027\u80fd<\/td>\n> 100 mA\uff08\u7b26\u5408 JESD 78 \u6807\u51c6\uff0cII \u7ea7<\/td>\n<\/tr>\n
ESD \u4fdd\u62a4\uff08HBM\uff09<\/td>\n2000 V (JESD 22, A114-A)<\/td>\n<\/tr>\n
ESD \u4fdd\u62a4\uff08CDM\uff09<\/td>\n1000 V\uff08JESD 22\uff0cC101\uff09<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nVSSOP-8\uff08DCU\uff09\uff0c2.0 x 3.1 \u6beb\u7c73<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6\u8303\u56f4<\/td>\n-40\u81f3+125\u6444\u6c0f\u5ea6<\/td>\n<\/tr>\n
RoHS \/ REACH<\/td>\n\u7b26\u5408\u8981\u6c42<\/td>\n<\/tr>\n
MSL \u7b49\u7ea7<\/td>\nLevel-1-260C-UNLIM<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • \u53cc\u901a\u9053\u975e\u53cd\u76f8\u7f13\u51b2\u5668\/\u7ebf\u8def\u9a71\u52a8\u5668\uff0c\u5177\u6709\u72ec\u7acb\u7684\u4e09\u6001\u8f93\u51fa\u542f\u7528\u63a7\u5236\uff081OE \u4f4e\u7535\u5e73\u6709\u6548\u30012OE \u9ad8\u7535\u5e73\u6709\u6548\uff09<\/li>\n
  • \u5bbd\u7535\u6e90\u7535\u538b\u8303\u56f4\uff1a1.65 V \u81f3 5.5 V\uff0c\u652f\u6301\u6df7\u5408\u7535\u538b\u7cfb\u7edf\u8bbe\u8ba1<\/li>\n
  • \u8fc7\u538b\u5bb9\u9650\u8f93\u5165\u53ef\u63a5\u53d7\u9ad8\u8fbe 5.5 V \u7684\u4fe1\u53f7\uff0c\u4e0e VCC \u65e0\u5173<\/li>\n
  • 3.3 V \u7535\u538b\u4e0b\u7684\u6700\u5927\u4f20\u64ad\u5ef6\u8fdf\u4ec5\u4e3a 4.1 ns\uff0c\u53ef\u5b9e\u73b0\u9ad8\u901f\u4fe1\u53f7\u7f13\u51b2<\/li>\n
  • 3.3 V \u4e0b\u7684\u5e73\u8861 \u00b124-mA \u8f93\u51fa\u9a71\u52a8\uff1b4.5 V \u4e0b\u7684 \u00b132-mA \u8f93\u51fa\u9a71\u52a8<\/li>\n
  • \u8d85\u4f4e\u9759\u6001\u7535\u6d41\uff1a\u6700\u5927 10\u00b5A ICC\uff0c\u9002\u7528\u4e8e\u529f\u8017\u654f\u611f\u578b\u5e94\u7528<\/li>\n
  • \u5173\u65ad\u7535\u8def\u652f\u6301\u5e26\u7535\u63d2\u62d4\u3001\u90e8\u5206\u6389\u7535\u6a21\u5f0f\u548c\u53cd\u5411\u9a71\u52a8\u4fdd\u62a4<\/li>\n
  • \u4e0b\u53d8\u9891\u529f\u80fd\uff1a\u5c06\u6700\u9ad8 5.5 V \u7684\u8f93\u5165\u8f6c\u6362\u4e3a VCC \u7535\u5e73<\/li>\n
  • 3.3 V \u65f6\uff0c\u5178\u578b\u8f93\u51fa\u63a5\u5730\u53cd\u5f39 (VOLP) 2 V<\/li>\n
  • \u95e9\u9501\u6297\u6270\u5ea6\u8d85\u8fc7 100 mA\uff08\u7b26\u5408 JESD 78 \u6807\u51c6 II \u7ea7\u8981\u6c42<\/li>\n
  • \u91c7\u7528 Texas Instruments NanoFree \u5c01\u88c5\u6280\u672f\uff0c\u5360\u7528\u7a7a\u95f4\u6700\u5c0f<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • AV \u63a5\u6536\u5668\u548c\u5bb6\u5ead\u5f71\u9662\u7cfb\u7edf<\/li>\n
    • \u84dd\u5149\u548c DVD \u64ad\u653e\u5668\/\u523b\u5f55\u673a<\/li>\n
    • \u53f0\u5f0f\u7535\u8111\u548c\u7b14\u8bb0\u672c\u7535\u8111<\/li>\n
    • \u4fbf\u643a\u5f0f\u5a92\u4f53\u64ad\u653e\u5668\u548c\u79fb\u52a8\u4e92\u8054\u7f51\u8bbe\u5907<\/li>\n
    • GPS \u4e2a\u4eba\u5bfc\u822a\u8bbe\u5907<\/li>\n
    • \u5d4c\u5165\u5f0f PC \u548c\u6570\u7801\u6444\u50cf\u673a<\/li>\n
    • \u4e13\u4e1a\u97f3\u9891\u6df7\u97f3\u5668\u548c\u7f51\u7edc\u6295\u5f71\u4eea\u524d\u7aef<\/li>\n
    • \u5185\u5b58\u5730\u5740\u9a71\u52a8\u5668\u3001\u65f6\u949f\u9a71\u52a8\u5668\u548c\u9762\u5411\u603b\u7ebf\u7684\u63a5\u6536\u5668\/\u53d1\u9001\u5668<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SN74LVC2G241DCUR is a dual non-inverting buffer and line driver with 3-state outputs, manufactured by Texas Instruments as part of the LVC (Low-Voltage CMOS) logic family. Designed for 1.65-V to 5.5-V VCC operation, this device is organized as two independent 1-bit line drivers with separate output-enable (1OE, 2OE) control inputs, making it ideal […]<\/p>\n","protected":false},"author":2,"featured_media":2162,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,15],"tags":[],"chip_brand":[138],"class_list":["post-2155","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","category-logic-chips","chip_brand-ti"],"acf":{"brief_explanation":"Dual non-inverting buffer\/driver, 2-ch, 3-state output, 1.65V-5.5V, 4.1ns tpd, +\/-24mA drive, VSSOP-8, Ioff","date_code":"","package_case":"VSSOP-8 (DCU), 2.0 x 3.1 x 1.0 mm","in_stock":6864,"datasheet":"https:\/\/www.ti.com\/product\/SN74LVC2G241","price":"$0.234 @ 1ku","product_introduction":"The SN74LVC2G241DCUR is a dual non-inverting buffer and line driver with 3-state outputs, manufactured by Texas Instruments as part of the 74LVC logic family. Designed for operation from 1.65 V to 5.5 V, this device is specifically engineered to improve the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters. The device is organized as two independent 1-bit line drivers, each with its own output-enable control: the 1OE input is active-low and the 2OE input is active-high. When the output-enable condition is met, data passes from the A input to the Y output; when disabled, the output enters the high-impedance (3-state) state, allowing safe bus sharing among multiple devices. A key advantage of this device is its over-voltage tolerant input structure, which accepts signals up to 5.5 V regardless of the VCC supply level. This enables the SN74LVC2G241DCUR to function as a down-translator, converting higher-voltage logic levels to the VCC rail voltage \u2014 a valuable feature in mixed-voltage systems where a 3.3 V or 5 V bus must interface with a lower-voltage controller. The integrated Ioff circuitry ensures that outputs are disabled during power-up or power-down, preventing damaging backflow current and supporting live insertion and partial-power-down applications. Packaged in a compact VSSOP-8 (DCU) footprint of only 2.0 x 3.1 mm, the device minimizes board area while delivering robust \u00b124-mA output drive at 3.3 V and a propagation delay of just 4.1 ns.","working_principle":"The SN74LVC2G241DCUR operates through three functional subsystems:\n\n1. Non-Inverting Buffer Core: Each of the two channels contains a CMOS non-inverting buffer stage. When the corresponding output-enable pin is in the active state (1OE = low for Channel 1; 2OE = high for Channel 2), the buffer passes the logic level at the A input directly to the Y output without inversion. The CMOS push-pull output stage provides symmetric source (IOH) and sink (IOL) current capability \u2014 up to \u00b124 mA at 3.3 V \u2014 ensuring strong signal drive even across long PCB traces or multiple loads. The balanced output architecture minimizes duty-cycle distortion in clock distribution applications.\n\n2. 3-State Output Enable Control: Each channel features an independent output-enable input. When the enable condition is not met (1OE = high or 2OE = low), the output transistors are both turned off, placing the Y output in a high-impedance (Hi-Z) state. This allows multiple devices to share a common bus without contention. During power-up or power-down transients, the Ioff circuitry ensures the outputs remain in Hi-Z, preventing back-drive current from flowing through the device and protecting downstream components. Designers should tie 1OE to VCC via a pull-up resistor and 2OE to GND via a pull-down resistor to guarantee the Hi-Z state during supply transitions.\n\n3. Over-Voltage Tolerant Input and Down-Translation: The input stage is designed to accept voltages up to 5.5 V independently of the VCC supply. When VCC is set to a lower voltage (e.g., 1.8 V or 2.5 V) while the input signal originates from a higher-voltage domain (e.g., 3.3 V or 5 V), the device clamps and level-shifts the input to the VCC logic level at the output. This down-translation capability eliminates the need for external level-shifter ICs in mixed-voltage system designs. The input clamp diodes also provide a defined path for negative undershoots up to -50 mA (IIK), protecting the thin-oxide CMOS gates from damage.","pin_description":"\n
      Pin No.<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>1OE<\/td>Input (Active Low)<\/td>Output enable for Channel 1. When 1OE is low, the 1Y output follows the 1A input. When 1OE is high, the 1Y output is in the high-impedance (3-state) state.<\/td><\/tr>\n
      2<\/td>1A<\/td>Input<\/td>Data input for Channel 1. Over-voltage tolerant, accepts signals up to 5.5 V independent of VCC. The non-inverted logic level appears at 1Y when 1OE is active.<\/td><\/tr>\n
      3<\/td>2Y<\/td>Output (3-State)<\/td>Data output for Channel 2. Follows the 2A input when 2OE is high. Enters high-impedance state when 2OE is low. Capable of sourcing\/sinking up to \u00b124 mA at 3.3 V.<\/td><\/tr>\n
      4<\/td>GND<\/td>Power<\/td>Ground reference. Must be connected to the PCB ground plane for proper device operation and thermal management.<\/td><\/tr>\n
      5<\/td>2A<\/td>Input<\/td>Data input for Channel 2. Over-voltage tolerant, accepts signals up to 5.5 V independent of VCC. The non-inverted logic level appears at 2Y when 2OE is active.<\/td><\/tr>\n
      6<\/td>2OE<\/td>Input (Active High)<\/td>Output enable for Channel 2. When 2OE is high, the 2Y output follows the 2A input. When 2OE is low, the 2Y output is in the high-impedance (3-state) state.<\/td><\/tr>\n
      7<\/td>1Y<\/td>Output (3-State)<\/td>Data output for Channel 1. Follows the 1A input when 1OE is low. Enters high-impedance state when 1OE is high. Capable of sourcing\/sinking up to \u00b124 mA at 3.3 V.<\/td><\/tr>\n
      8<\/td>VCC<\/td>Power<\/td>Positive supply voltage. Operating range: 1.65 V to 5.5 V. Decoupling capacitors (0.1 \u00b5F typical) should be placed close to this pin.<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • AV receivers and home theater systems: Buffers audio\/video control signals between DSPs and HDMI\/SPDIF interfaces with 3-state bus sharing<\/li>\n
      • Desktop and notebook PCs: Drives memory address lines and clock distribution networks with low propagation delay and high drive strength<\/li>\n
      • Portable media players and mobile internet devices: Level-shifts signals between 1.8 V\/2.5 V processors and 3.3 V peripherals using down-translation capability<\/li>\n
      • GPS personal navigation devices: Buffers communication bus signals between GPS module and host processor with minimal power consumption (10 \u00b5A ICC)<\/li>\n
      • Embedded PCs and industrial systems: Provides bus isolation and signal buffering with Ioff live-insertion support for hot-swap modules<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Channels<\/th>Package<\/th>Key Notes<\/th><\/tr>\n
        Texas Instruments<\/td>SN74LVC2G241DCTR<\/td>2<\/td>SSOP-8 (DCT), 2.95 x 4 mm<\/td>Same function, different package option (SSOP)<\/td><\/tr>\n
        Texas Instruments<\/td>SN74LVC2G241YZPR<\/td>2<\/td>DSBGA-8 (YZP), 2.25 x 1.25 mm<\/td>Chip-scale package for ultra-compact designs<\/td><\/tr>\n
        Nexperia<\/td>74LVC2G241GW,125<\/td>2<\/td>TSSOP-8 (SOT353)<\/td>Pin-compatible alternative from Nexperia<\/td><\/tr>\n
        onsemi<\/td>MC74LVC2G241DTG<\/td>2<\/td>TSOP-8<\/td>Equivalent function from onsemi, similar specifications<\/td><\/tr>\n
        Diodes Incorporated<\/td>74LVC2G241DW-7<\/td>2<\/td>SOT-363 (SC-88)<\/td>Compact alternative, 1.65 V to 5.5 V operation<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2155","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=2155"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2155\/revisions"}],"predecessor-version":[{"id":2166,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2155\/revisions\/2166"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/2162"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2155"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}