AT25SF161B-SSHB-T

{
  "schema_version": 1,
  "type": "component",
  "slug": "at25sf161b-sshb-t",
  "title": "AT25SF161B-SSHB-T",
  "brief": "Dialog Semiconductor Adesto Adesto Technologies NOR FLASH, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "memory",
    "at25sf161b-sshb-t"
  ],
  "component": {
    "mpn": "AT25SF161B-SSHB-T",
    "manufacturer": "Dialog Semiconductor Adesto Adesto Technologies",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "NOR FLASH",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2311290519_Dialog-Semiconductor-Adesto-Adesto-Technologies-AT25SF161B-SSHB-T_C5555631.pdf",
    "parts": {
      "symbol": "at25sf161b-sshb-t.kicad_sym",
      "footprint": "at25sf161b-sshb-t.kicad_mod",
      "model_3d": "at25sf161b-sshb-t-etched.glb",
      "model_3d_plain": "at25sf161b-sshb-t.glb",
      "model_3d_step": "at25sf161b-sshb-t-etched.step",
      "model_3d_step_plain": "at25sf161b-sshb-t.step",
      "lbr": "at25sf161b-sshb-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C5555631"
    },
    "pins": [
      {
        "number": "1",
        "name": "CS#",
        "type": "input",
        "description": "Active-low chip select. Asserting CS# (low) selects the device; deasserting (high) puts it in standby. A high-to-low transition starts an operation; low-to-high ends it. A ~10 kΩ pull-up to VCC is recommended for correct power-up ramp."
      },
      {
        "number": "2",
        "name": "SO/IO1",
        "type": "bidirectional",
        "description": "Serial data output in standard SPI; becomes bidirectional IO1 for Dual-SPI and Quad-SPI read/program commands. Data is clocked out on the falling edge of SCK. High-Z when CS# is deasserted."
      },
      {
        "number": "3",
        "name": "WP#/IO2",
        "type": "bidirectional",
        "description": "Active-low hardware write protect for the Status Register when the Quad Enable (QE) bit is 0; becomes bidirectional IO2 when QE=1 for quad-SPI transfers. Internally pulled high - may be left floating if unused."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the power supply. Connect to system ground."
      },
      {
        "number": "5",
        "name": "SI/IO0",
        "type": "bidirectional",
        "description": "Serial data input in standard SPI (commands, addresses, write data), latched on the rising edge of SCK. Becomes bidirectional IO0 for Dual- and Quad-SPI read commands. Ignored when CS# is deasserted."
      },
      {
        "number": "6",
        "name": "SCK",
        "type": "input",
        "description": "Serial clock input. Command, address, and input data on SI are latched on the rising edge; output data on SO is clocked out on the falling edge. Supports SPI modes 0 and 3 up to 108 MHz."
      },
      {
        "number": "7",
        "name": "HOLD#/IO3",
        "type": "bidirectional",
        "description": "Active-low HOLD pin (pauses SPI transfer without resetting the clocking sequence) when QE=0; becomes bidirectional IO3 for quad-SPI transfers when QE=1. Internally pulled high - may be left floating if unused."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Device power supply. 2.7 V to 3.6 V for the -B (SSHB) grade. Add a decoupling capacitor near the pin."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2311290519_Dialog-Semiconductor-Adesto-Adesto-Technologies-AT25SF161B-SSHB-T_C5555631.pdf",
        "pages": 61,
        "sha256": "619b98776bb02ba8",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "at25sf161b-sshb-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at25sf161b-sshb-t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3f71b137a1845ac57aacd1f24d96ef79559327d5dbff6de4dfa85375a769296b",
        "checked": "2026-11-03",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Dialog Semiconductor Adesto Adesto Technologies",
      "Package": "SOIC-8",
      "Category": "Memory",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "at25sf161b-sshb-t"
  ],
  "discovery_pitch": "AT25SF161B-SSHB-T (Dialog Semiconductor Adesto Adesto Technologies) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at25sf161b-sshb-t.kicad_sym",
    "at25sf161b-sshb-t.kicad_mod",
    "at25sf161b-sshb-t.glb",
    "at25sf161b-sshb-t.step",
    "at25sf161b-sshb-t.lbr",
    "docs/hero.png",
    "docs/at25sf161b-sshb-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at25sf161b-sshb-t-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:11:23.138Z"
}