main
Ray cd74hc595m96: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC bod… f121999
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  "slug": "cd74hc595m96",
  "title": "CD74HC595M96",
  "brief": "Texas Instruments Shifting Register, SOIC-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
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    "mpn": "CD74HC595M96",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Shifting Register",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cd74hc595m96.pdf",
    "parts": {
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      "lbr": "cd74hc595m96.lbr"
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    "distributor_links": {
      "digikey": "296-18402-2-ND",
      "mouser": "595-CD74HC595M96",
      "lcsc": "C131977"
    },
    "pins": [
      {
        "number": "1",
        "name": "QB",
        "type": "tri_state",
        "description": "3-state parallel output bit B of the 8-bit storage register. Drives up to ±6 mA at VCC = 5 V; high-impedance when OE is high."
      },
      {
        "number": "2",
        "name": "QC",
        "type": "tri_state",
        "description": "3-state parallel output bit C of the 8-bit storage register. Drives up to ±6 mA at VCC = 5 V; high-impedance when OE is high."
      },
      {
        "number": "3",
        "name": "QD",
        "type": "tri_state",
        "description": "3-state parallel output bit D of the 8-bit storage register. Drives up to ±6 mA at VCC = 5 V; high-impedance when OE is high."
      },
      {
        "number": "4",
        "name": "QE",
        "type": "tri_state",
        "description": "3-state parallel output bit E of the 8-bit storage register. Drives up to ±6 mA at VCC = 5 V; high-impedance when OE is high."
      },
      {
        "number": "5",
        "name": "QF",
        "type": "tri_state",
        "description": "3-state parallel output bit F of the 8-bit storage register. Drives up to ±6 mA at VCC = 5 V; high-impedance when OE is high."
      },
      {
        "number": "6",
        "name": "QG",
        "type": "tri_state",
        "description": "3-state parallel output bit G of the 8-bit storage register. Drives up to ±6 mA at VCC = 5 V; high-impedance when OE is high."
      },
      {
        "number": "7",
        "name": "QH",
        "type": "tri_state",
        "description": "3-state parallel output bit H (MSB) of the 8-bit storage register. Drives up to ±6 mA at VCC = 5 V; high-impedance when OE is high."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V) for the device."
      },
      {
        "number": "9",
        "name": "QH'",
        "type": "output",
        "description": "Serial data output from the last stage of the shift register (not 3-state). Used to cascade multiple CD74HC595 devices by connecting QH' to the SER input of the next stage."
      },
      {
        "number": "10",
        "name": "SRCLR",
        "type": "input",
        "description": "Active-low direct overriding shift-register clear. When held low, the shift register is asynchronously cleared; the storage register is unaffected."
      },
      {
        "number": "11",
        "name": "SRCLK",
        "type": "input",
        "description": "Shift-register clock input. On each positive edge, serial data on SER is shifted into the 8-bit shift register."
      },
      {
        "number": "12",
        "name": "RCLK",
        "type": "input",
        "description": "Storage-register (latch) clock input. On each positive edge, the contents of the shift register are transferred to the 8-bit storage register and appear at QA-QH."
      },
      {
        "number": "13",
        "name": "OE",
        "type": "input",
        "description": "Active-low output-enable for the QA-QH 3-state outputs. When high, QA-QH are placed in the high-impedance state; when low, storage-register data drives the outputs. Does not affect QH'."
      },
      {
        "number": "14",
        "name": "SER",
        "type": "input",
        "description": "Serial data input to the first stage of the shift register. Sampled on the positive edge of SRCLK."
      },
      {
        "number": "15",
        "name": "QA",
        "type": "tri_state",
        "description": "3-state parallel output bit A (LSB) of the 8-bit storage register. Drives up to ±6 mA at VCC = 5 V; high-impedance when OE is high."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage input. Recommended operating range 2 V to 6 V (5 V nominal); absolute maximum 7 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cd74hc595m96.pdf",
        "pages": 22,
        "sha256": "e9237e04a8fe62ec",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -4.445
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-16_3.9x9.9mm_P1.27mm@sha256:f9b5075740f7816c",
      "mark": "drawn"
    },
    "logic": {
      "family_id": "74HC595",
      "logic_family": "74HC",
      "function_code": "595",
      "function_class": "ShiftRegister",
      "function_name": "8-Bit SIPO Shift Register with Output Latch",
      "manufacturer": "Texas Instruments",
      "is_specialty": false
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        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
        "file": "cd74hc595m96-etched.step",
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        "origin": "footprint origin = pad-pattern centre",
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        "sha256": "a423de6e53415a992273a104b4c6d55864d818a6dd7ffc92242c322414347ffa",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-16",
      "Category": "Logic",
      "Pins": "16"
    }
  },
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  "discovery_pitch": "CD74HC595M96 (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
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  "visibility": {
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  "variants": [
    {
      "mpn": "CD74HC595M96M",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC595M96",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC595M96MT",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC595M96DW",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC595M96DWR",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC595M96E",
      "kind": "packaging"
    },
    {
      "mpn": "CD74HC595M96NSR",
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    },
    {
      "mpn": "CD74HC595M96SM",
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    },
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      "mpn": "CD74HC595M96SM96",
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  "updated_at": "2026-09-24T18:56:57.325Z"
}