M74HC4094YTTR

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  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Shift Registers, TSSOP-16. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
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  "component": {
    "mpn": "M74HC4094YTTR",
    "manufacturer": "STMicroelectronics",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Shift Registers",
    "datasheet": "https://www.st.com/resource/en/datasheet/m74hc4094yttr.pdf",
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    "distributor_links": {
      "lcsc": "C2970240",
      "digikey": "497-14395-2-ND",
      "mouser": "511-M74HC4094YTTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T10:07:59Z",
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    "pins": [
      {
        "number": "1",
        "name": "STROBE",
        "type": "input",
        "description": "Strobe input: data latches on the negative going transition of STROBE, and when held high data propagates through the latch to the 3-state output buffer."
      },
      {
        "number": "2",
        "name": "SERIAL IN",
        "type": "input",
        "description": "Serial data input to the 8-bit shift register, shifted in on the positive going transition of the clock."
      },
      {
        "number": "3",
        "name": "CLOCK",
        "type": "input",
        "description": "Clock input: data shifts through the shift register on its positive going transition."
      },
      {
        "number": "4",
        "name": "Q1 to Q7",
        "type": "tri_state",
        "description": "Parallel 3-state output, enabled when OUTPUT ENABLE is taken high and high impedance when OE is low."
      },
      {
        "number": "5",
        "name": "Q1 to Q7",
        "type": "tri_state",
        "description": "Parallel 3-state output, enabled when OUTPUT ENABLE is taken high and high impedance when OE is low."
      },
      {
        "number": "6",
        "name": "Q1 to Q7",
        "type": "tri_state",
        "description": "Parallel 3-state output, enabled when OUTPUT ENABLE is taken high and high impedance when OE is low."
      },
      {
        "number": "7",
        "name": "Q1 to Q7",
        "type": "tri_state",
        "description": "Parallel 3-state output, enabled when OUTPUT ENABLE is taken high and high impedance when OE is low."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for the device."
      },
      {
        "number": "9",
        "name": "QS",
        "type": "output",
        "description": "Serial output of the last shift register stage, used to cascade several devices."
      },
      {
        "number": "10",
        "name": "QS'",
        "type": "output",
        "description": "Second serial output, carrying the QS data transferred on the following negative transition of the clock."
      },
      {
        "number": "11",
        "name": "Q1 to Q7",
        "type": "tri_state",
        "description": "Parallel 3-state output, enabled when OUTPUT ENABLE is taken high and high impedance when OE is low."
      },
      {
        "number": "12",
        "name": "Q1 to Q7",
        "type": "tri_state",
        "description": "Parallel 3-state output, enabled when OUTPUT ENABLE is taken high and high impedance when OE is low."
      },
      {
        "number": "13",
        "name": "Q1 to Q7",
        "type": "tri_state",
        "description": "Parallel 3-state output, enabled when OUTPUT ENABLE is taken high and high impedance when OE is low."
      },
      {
        "number": "14",
        "name": "Q1 to Q7",
        "type": "tri_state",
        "description": "Parallel 3-state output, enabled when OUTPUT ENABLE is taken high and high impedance when OE is low."
      },
      {
        "number": "15",
        "name": "OE",
        "type": "input",
        "description": "Output enable input: the parallel 3-state outputs are enabled when this input is taken high."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage; recommended operating range is 2 V to 6 V."
      }
    ],
    "provenance": {
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        "pages": 17,
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        "source_tier": "mfr"
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      "pins": {
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        "described": 16,
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