# HK24C02HA-USR-B

**HK** · EEPROM · SOP-8

HK24C02HA-USR-B from HK, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | NC | unconnected | No-connect pin with no internal function stated in the datasheet. |
| 2 | NC | unconnected | No-connect pin with no internal function stated in the datasheet. |
| 3 | NC | unconnected | No-connect pin with no internal function stated in the datasheet. |
| 4 | GND | power_in | Ground reference for the device supply. |
| 5 | SDA | bidirectional | Serial data input / open-drain output; bi-directional line that can be wire-ORed with other open-drain devices and is typically pulled high by an external resistor. |
| 6 | SCL | input | Serial clock input; the rising edge latches data into the EEPROM and the falling edge clocks data out. |
| 7 | NC | unconnected | No-connect pin with no internal function stated in the datasheet. |
| 8 | VCC | power_in | Power supply input, 1.8V to 5.5V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HK |
| Package | SOP-8 |
| Category | Memory |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Industrial operating temperature |  | -40 |  | 85 | °C |  | 3 |
| Storage temperature |  | -50 |  | 125 | °C |  | 3 |
| Maximum voltage |  |  |  | 8 | V |  | 3 |
| Input voltage on any pin relative to ground (minimum) |  | -0.3 |  |  | V | relative to ground | 3 |
| ESD protection on all pins |  | 2000 |  |  | V |  | 3 |
| Power supply | VCC1 | 1.8 |  | 5.5 | V |  | 12 |
| Supply read current | ICC |  | 0.2 | 0.4 | mA | VCC @ 5.0V SCL = 400 kHz | 12 |
| Supply write current | ICC |  | 0.3 | 0.5 | mA | VCC @ 5.0V SCL = 400 kHz | 12 |
| Supply current (standby) | ISB1 |  |  | 0.1 | μA | VCC @ 1.8V, VIN = VCC or VSS | 12 |
| Supply current (standby) | ISB3 |  | 0.01 | 0.1 | μA | VCC @ 5.0V, VIN = VCC or VSS | 12 |
| Input leakage current | IIL |  |  | 3 | μA | VIN = VCC or VSS | 12 |
| Output leakage current | ILO |  |  | 3 | μA | VIN = VCC or VSS | 12 |
| Input low level | VIL | -0.6 |  |  | V |  | 12 |
| Output low level | VOL1 |  |  | 0.2 | V | VCC @ 1.8V, IOL = 0.15 mA | 12 |
| Output low level | VOL2 |  |  | 0.4 | V | VCC @ 3.0V, IOL = 2.1 mA | 12 |
| Write cycle time | tWR |  |  | 3 | ms |  | 11 |
| Endurance |  |  | 1e+06 |  | Write Cycles | 25°C, Page Mode, 3.3V | 11 |

## CAD (KiCad official)

- Symbol: `HK24C02HA-USR-B`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `hk24c02ha-usr-b-etched.step` / `hk24c02ha-usr-b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hk24c02ha-usr-b.step` / `hk24c02ha-usr-b.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [HK datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604422893589839872) (18 pp, sha256 `f99cdc457175e72a`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/hk24c02ha-usr-b-datasheet.pdf)