SN74ALVC244DGVR

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  "type": "component",
  "slug": "sn74alvc244dgvr",
  "title": "SN74ALVC244DGVR",
  "brief": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, TVSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "SN74ALVC244DGVR",
    "manufacturer": "Texas Instruments",
    "package": "TVSOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74alvc244dgvr.pdf",
    "parts": {
      "symbol": "sn74alvc244dgvr.kicad_sym",
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      "lbr": "sn74alvc244dgvr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2871473",
      "digikey": "296-12862-2-ND",
      "mouser": "595-SN74ALVC244DGVR"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T06:40:35Z",
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        "pn": "595-SN74ALVC244DGVR",
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    },
    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Active-low output enable for the first 4-bit buffer; when OE is high, outputs 1Y1 to 1Y4 are in the high-impedance state, and OE should be tied to VCC through a pullup resistor to keep outputs high-Z during power up or down."
      },
      {
        "number": "2",
        "name": "1A1",
        "type": "input",
        "description": "Data input for channel 1 of the first buffer, with a recommended input voltage range of 0 V to 3.6 V."
      },
      {
        "number": "3",
        "name": "2Y4",
        "type": "tri_state",
        "description": "Three-state output 4 of the second buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V."
      },
      {
        "number": "4",
        "name": "1A2",
        "type": "input",
        "description": "Data input for channel 2 of the first buffer, with a recommended input voltage range of 0 V to 3.6 V."
      },
      {
        "number": "5",
        "name": "2Y3",
        "type": "tri_state",
        "description": "Three-state output 3 of the second buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V."
      },
      {
        "number": "6",
        "name": "1A3",
        "type": "input",
        "description": "Data input for channel 3 of the first buffer, with a recommended input voltage range of 0 V to 3.6 V."
      },
      {
        "number": "7",
        "name": "2Y2",
        "type": "tri_state",
        "description": "Three-state output 2 of the second buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V."
      },
      {
        "number": "8",
        "name": "1A4",
        "type": "input",
        "description": "Data input for channel 4 of the first buffer, with a recommended input voltage range of 0 V to 3.6 V."
      },
      {
        "number": "9",
        "name": "2Y1",
        "type": "tri_state",
        "description": "Three-state output 1 of the second buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V) for the device."
      },
      {
        "number": "11",
        "name": "2A1",
        "type": "input",
        "description": "Data input for channel 1 of the second buffer, with a recommended input voltage range of 0 V to 3.6 V."
      },
      {
        "number": "12",
        "name": "1Y4",
        "type": "tri_state",
        "description": "Three-state output 4 of the first buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V."
      },
      {
        "number": "13",
        "name": "2A2",
        "type": "input",
        "description": "Data input for channel 2 of the second buffer, with a recommended input voltage range of 0 V to 3.6 V."
      },
      {
        "number": "14",
        "name": "1Y3",
        "type": "tri_state",
        "description": "Three-state output 3 of the first buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V."
      },
      {
        "number": "15",
        "name": "2A3",
        "type": "input",
        "description": "Data input for channel 3 of the second buffer, with a recommended input voltage range of 0 V to 3.6 V."
      },
      {
        "number": "16",
        "name": "1Y2",
        "type": "tri_state",
        "description": "Three-state output 2 of the first buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V."
      },
      {
        "number": "17",
        "name": "2A4",
        "type": "input",
        "description": "Data input for channel 4 of the second buffer, with a recommended input voltage range of 0 V to 3.6 V."
      },
      {
        "number": "18",
        "name": "1Y1",
        "type": "tri_state",
        "description": "Three-state output 1 of the first buffer, rated for -24 mA IOH and 24 mA IOL at VCC = 3 V."
      },
      {
        "number": "19",
        "name": "2OE",
        "type": "input",
        "description": "Active-low output enable for the second 4-bit buffer; when OE is high, outputs 2Y1 to 2Y4 are in the high-impedance state."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended operating range 1.65 V to 3.6 V."
      }
    ],
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "at": "2026-10-18T06:37:19"
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      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74alvc244dgvr.pdf",
        "pages": 23,
        "sha256": "cb1b7c459f06040e",
        "source_tier": "mfr"
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      "pins": {
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        "described": 20,
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  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TVSOP-20",
      "Category": "Logic",
      "Pins": "20"
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    "characteristics": {
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          "min": 1.65,
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          "max": 3.6,
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          "conditions": "VCC = 1.65 V",
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        {
          "name": "High-level output current",
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          "typ": null,
          "max": -12,
          "conditions": "VCC = 2.3 V",
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        {
          "name": "High-level output current",
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          "kind": "recommended_operating",
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          "min": null,
          "typ": null,
          "max": -24,
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          "conditions": "VCC = 2.3 V",
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        {
          "name": "Low-level output current",
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          "conditions": "VCC = 3 V",
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        {
          "name": "Input transition rise or fall rate",
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          "kind": "recommended_operating",
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        {
          "name": "Operating free-air temperature",
          "symbol": "TA",
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          "min": -40,
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        {
          "name": "High-level output voltage",
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          "min": 1.2,
          "typ": null,
          "max": null,
          "conditions": "IOH = -4 mA, VCC = 1.65 V",
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        {
          "name": "High-level output voltage",
          "symbol": "VOH",
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          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "IOH = -6 mA, VCC = 2.3 V",
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        {
          "name": "High-level output voltage",
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          "conditions": "IOH = -12 mA, VCC = 2.3 V",
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        {
          "name": "High-level output voltage",
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          "typ": null,
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          "conditions": "IOH = -12 mA, VCC = 2.7 V",
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        {
          "name": "High-level output voltage",
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          "conditions": "IOH = -12 mA, VCC = 3 V",
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        {
          "name": "Low-level output voltage",
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          "conditions": "IOL = 100 µA, VCC = 1.65 V to 3.6 V",
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        {
          "name": "Low-level output voltage",
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          "min": null,
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          "max": 0.45,
          "conditions": "IOL = 4 mA, VCC = 1.65 V",
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        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
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          "conditions": "IOL = 6 mA, VCC = 2.3 V",
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        {
          "name": "Low-level output voltage",
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          "conditions": "IOL = 12 mA, VCC = 2.3 V",
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        {
          "name": "Low-level output voltage",
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          "conditions": "IOL = 24 mA, VCC = 3 V",
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          "name": "Input current",
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          "kind": "electrical",
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          "conditions": "VI = VCC or GND, VCC = 3.6 V",
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        {
          "name": "Off-state output current",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "µA",
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          "conditions": "VO = VCC or GND, VCC = 3.6 V",
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        {
          "name": "Supply current change",
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          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 750,
          "conditions": "One input at VCC - 0.6 V, other inputs at VCC or GND, VCC = 3 V to 3.6 V",
          "source_page": 3,
          "source": "datasheet"
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          "name": "Propagation delay time A to Y",
          "symbol": "tpd",
          "kind": "timing",
          "unit": "ns",
          "min": 1,
          "typ": null,
          "max": 4.4,
          "conditions": "VCC = 1.8 V ± 0.15 V, see Figure 1",
          "source_page": 4,
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          "name": "Propagation delay time A to Y",
          "symbol": "tpd",
          "kind": "timing",
          "unit": "ns",
          "min": 1,
          "typ": null,
          "max": 3.1,
          "conditions": "VCC = 2.5 V ± 0.2 V, see Figure 1",
          "source_page": 4,
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          "name": "Propagation delay time A to Y",
          "symbol": "tpd",
          "kind": "timing",
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          "min": null,
          "typ": null,
          "max": 3.1,
          "conditions": "VCC = 2.7 V, see Figure 1",
          "source_page": 4,
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        {
          "name": "Propagation delay time A to Y",
          "symbol": "tpd",
          "kind": "timing",
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          "min": 1.1,
          "typ": null,
          "max": 2.8,
          "conditions": "VCC = 3.3 V ± 0.3 V, see Figure 1",
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          "conditions": "VCC = 1.8 V ± 0.15 V, see Figure 1",
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          "name": "Output enable time OE to Y",
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          "conditions": "VCC = 2.5 V ± 0.2 V, see Figure 1",
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          "name": "Output enable time OE to Y",
          "symbol": "ten",
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          "typ": null,
          "max": 5.3,
          "conditions": "VCC = 2.7 V, see Figure 1",
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          "name": "Output enable time OE to Y",
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          "typ": null,
          "max": 4.5,
          "conditions": "VCC = 3.3 V ± 0.3 V, see Figure 1",
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          "name": "Output disable time OE to Y",
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          "conditions": "VCC = 1.8 V ± 0.15 V, see Figure 1",
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          "name": "Output disable time OE to Y",
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          "conditions": "VCC = 2.5 V ± 0.2 V, see Figure 1",
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          "name": "Output disable time OE to Y",
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