HX24C256DRG

@@ -0,0 +1,52 @@+# HX24C256DRG++**HANSCHIP semiconductor** · EEPROM · SOP-8++HX24C256DRG from HANSCHIP semiconductor, 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 | A0 | input | Device address input bit 0. Hardwire to VCC or GND to set one of the device address bits; may be left floating (internal pull-down to GND when board VCC-plane capacitive coupling is <3 pF). Combined with A1 to select one of up to 4 devices on the same I2C bus. |+| 2 | A1 | input | Device address input bit 1. Hardwire to VCC or GND to set the device I2C address; may be left floating (internal pull-down to GND under low coupling conditions). |+| 3 | NC | unconnected | No connect. Leave floating or tie to GND. |+| 4 | GND | power_in | Ground reference for the device. |+| 5 | SDA | bidirectional | Serial data line for the two-wire I2C interface. Open-drain output, requires an external pull-up resistor (typ. to VCC). Bi-directional; can be wire-ORed with other open-drain devices. |+| 6 | SCL | input | Serial clock input for the two-wire I2C interface. Data is clocked into the EEPROM on the positive edge and out on the negative edge. Supports 1 MHz @ 5V, 400 kHz @ 1.8/2.7/3.3V. |+| 7 | WP | input | Write Protect. Tie to GND for normal read/write operation; tie to VCC to inhibit all write operations (full 256K array protected). Internal pull-down to GND when board VCC-plane capacitive coupling is <3 pF; recommend tying to GND if coupling is >3 pF. |+| 8 | VCC | power_in | Power supply input. Wide operating range 1.8V to 5.5V. Absolute maximum +6.5V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HANSCHIP semiconductor |+| Package | SOP-8 |+| Category | Memory |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `HX24C256DRG`+- `HX24C256DRG4`+- `HX24C256DRGPG`+- `HX24C256DRGDGKRG`++## CAD (KiCad official)++- Symbol: `HX24C256DRG`+- 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:** [HANSCHIP semiconductor datasheet](docs/hx24c256drg-datasheet.pdf) (14 pp, sha256 `aa353337ce1b7552`, 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/hx24c256drg-datasheet.pdf)

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