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BL24C64A-PARC
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BL Shanghai Belling EEPROM, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+54@@ -0,0 +1,54 @@+# BL24C64A-PARC++**BL Shanghai Belling** · EEPROM · SOP-8++BL24C64A-PARC from BL Shanghai Belling, 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. Hardwired to VCC or GND to set the chip's 3-bit slave address, allowing up to 8 devices on the same I2C bus. Internally biased to logic low if left floating. |+| 2 | A1 | input | Device address input bit 1. Hardwired to VCC or GND to set the chip's slave address. Internally biased to logic low if left floating. |+| 3 | A2 | input | Device address input bit 2. Hardwired to VCC or GND to set the chip's slave address. Internally biased to logic low if left floating. |+| 4 | GND | power_in | Ground reference for the EEPROM. Connect to system ground (0 V). |+| 5 | VCC | power_in | Positive power supply, 1.7 V to 5.5 V. ICC (read at 400 kHz) is typically 0.14 mA; write current is typically 0.28 mA; standby is ~0.03 uA. |+| 6 | WP | input | Write Protect input. Tie to GND for normal read/write operation; tie to VCC to write-protect the entire memory array (hardware data protection). Schmitt-trigger, filtered input. |+| 7 | SCL | input | I2C serial clock input. Positive edge clocks data into the EEPROM; negative edge clocks data out. Supports up to 1 MHz at VCC >= 2.5 V (400 kHz at VCC < 2.5 V). Requires an external pull-up resistor. |+| 8 | SDA | bidirectional | I2C serial data line, bidirectional. Open-drain output; requires an external pull-up resistor. Can be wire-OR'd with other open-drain / open-collector devices on the bus. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | BL Shanghai Belling |+| Package | SOP-8 |+| Category | Memory |+| Pins | 8 |++## Ordering variants++- `BL24C64A-PARCPARC`+- `BL24C64A-PARCPART`+- `BL24C64A-PARCPACS`+- `BL24C64A-PARCPACT`+- `BL24C64A-PARCDA`+- `BL24C64A-PARCSF`+- `BL24C64A-PARCNT`+- `BL24C64A-PARCCS`++## CAD (KiCad official)++- Symbol: `BL24C64A-PARC`+- 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:** [BL Shanghai Belling datasheet](docs/bl24c64a-parc-datasheet.pdf) (17 pp, sha256 `6e3ca9f804538b1b`, 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/bl24c64a-parc-datasheet.pdf)
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