AT24C64-HXY

@@ -0,0 +1,43 @@+# AT24C64-HXY++**HXY MOSFET** · EEPROM · SOP-8++AT24C64-HXY from HXY MOSFET, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | E0 | input | Device address input bit 0. Sets the LSB of the I2C slave address for hardware addressing (up to 8 devices on one bus). Internally pulled down to Vss if left floating. |+| 2 | E1 | input | Device address input bit 1. Sets a slave address bit for hardware addressing. Internally pulled down to Vss if left floating. |+| 3 | E2 | input | Device address input bit 2. Sets the MSB of the hardware-programmable slave address. Internally pulled down to Vss if left floating. |+| 4 | Vss | power_in | Ground reference (0 V) for the device. |+| 5 | SDA | bidirectional | I2C serial data. Bidirectional, open-drain; requires an external pull-up. May be wire-OR'd with other open-drain/open-collector devices. Max DC output current 5 mA (SDA=0). |+| 6 | SCL | input | I2C serial clock input. Positive-edge clocks data in and negative-edge clocks data out. Supports up to 1 MHz (Vcc >= 2.5V) or 400 kHz (Vcc >= 1.7V). |+| 7 | WCB | input | Write Control (active-low write enable). Tie to Vss to allow normal write operations; tie to Vcc to inhibit all writes to the memory. Internally pulled down to Vss if left floating. |+| 8 | Vcc | power_in | Supply voltage input. Operating range 1.7V to 5.5V (1.8V min for 400 kHz, 2.5V min for 1 MHz). Absolute max 6.5V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HXY MOSFET |+| Package | SOP-8 |+| Category | Memory |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `AT24C64-HXY`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HXY MOSFET datasheet](docs/at24c64-hxy-datasheet.pdf) (18 pp, sha256 `fa26a1fc0bb5c7ce`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/at24c64-hxy-datasheet.pdf)

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