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hg24c256cm
Public Unreviewedby Ray
HGSEMI EEPROM, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdownHG24C256CM
HGSEMI · EEPROM · SOP-8
HG24C256CM from HGSEMI, 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. Hard-wired to VCC or GND; forms the least-significant bit of the 3-bit slave-address field, allowing up to 8 devices on one I2C bus. Must match the software address bit in the device address byte. |
| 2 | E1 | input | Device address input bit 1. Hard-wired to VCC or GND; forms the middle bit of the 3-bit slave-address field used to select among up to 8 devices on the bus. |
| 3 | E2 | input | Device address input bit 2. Hard-wired to VCC or GND; forms the most-significant bit of the 3-bit slave-address field used to select among up to 8 devices on the bus. |
| 4 | GND | power_in | Ground reference for the power supply. Connect to the system ground. |
| 5 | SDA | bidirectional | I2C Serial Data. Open-drain bidirectional line used to serially transfer command, address, and data. Requires an external pull-up (see Figure 19). VIL max = 0.3VCC, VIH min = 0.7VCC; VOL ≤ 0.4V at IOL = 3 mA (VCC > 2V). |
| 6 | SCL | input | I2C Serial Clock. Master-driven clock; data on SDA is latched on the rising edge and clocked out on the falling edge. Supports 400 kHz Fast-mode and 1 MHz High-Speed operation from 1.7V-5.5V. |
| 7 | WP | input | Write Protect. When tied to VCC the entire memory array (and Identification Page) is write-protected - data bytes are NACK'd and the array becomes read-only. When tied to GND or left floating, write operations are enabled. |
| 8 | VCC | power_in | Device power supply, 1.7V to 5.5V. Absolute max 6.0V. Standby current 1 µA max at 5.5V; read current 0.5 mA max at 1 MHz; write current 1 mA max at 5.5V/400 kHz. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | SOP-8 |
| Category | Memory |
| Pins | 8 |
Ordering variants
HG24C256CM/TRHG24C256CMHG24C256CNHG24C256CMM/TRHG24C256CMT/TR
CAD (KiCad official)
- Symbol:
HG24C256CM - 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: HGSEMI datasheet (None pp, sha256
9b09a64fbd814396, 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).