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HK24C08HA-USR-B

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HK EEPROM, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HK24C08HA-USR-B

HK · EEPROM · SOP-8

HK24C08HA-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 A0 input Device address input for chip select, normally hardwired to VIH or VIL; if left unconnected it is internally recognized as VIL, but section 5 states that A1 and A0 are not used by the HK24C08.
2 A1 input Device address input listed for chip select, but section 5 states that for the HK24C08 chip select address pins A1 and A0 are not used, and unconnected inputs are internally recognized as VIL.
3 A2 input Device address chip select input (5th device address bit) that must be hard wired, allowing two HK24C08 devices to be wire-ORed on the same 2-wire bus with addresses coded from 00b to 11b.
4 GND power_in Ground reference for the device.
5 SDA bidirectional Bi-directional serial data line, an open-drain output that can be wire-ORed with other open-drain devices and is typically pulled high by an external resistor; data changes only while SCL is low.
6 SCL input Serial clock input where the rising edge latches data into the EEPROM and the falling edge clocks data out of the EEPROM.
7 WP input Write protect input: programming is allowed when left unconnected or at VIL, and all programming is disabled when connected to VIH or VCC; read operations are not affected by its level.
8 VCC power_in Power supply, specified from 1.8V to 5.5V for the HK24C08.

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
Power supply VCC1 1.8 5.5 V 12
Industrial operating temperature -40 85 °C Industrial range 3
Storage temperature -50 125 °C 3
Input voltage on any pin relative to ground -0.3 V Relative to ground; upper limit printed as VCC + 0.3V 3
Maximum voltage 8 V 3
ESD protection on all pins 2000 V Printed as >2000V, all pins 3
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 0.03 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
Clock frequency, SCL fSCL 400 kHz 1.8V column 11
Clock pulse width low tLOW 1.2 μs VCC 1.8V column 11
Clock pulse width low tLOW 0.7 μs VCC 2.5V column 11
Clock pulse width high tHIGH 0.4 μs VCC 1.8V column 11
Clock pulse width high tHIGH 0.3 μs VCC 2.5V column 11
Noise suppression time tI 100 ns VCC 1.8V column 11
Noise suppression time tI 50 ns VCC 2.5V column 11
Clock low to data out valid tAA 0.3 0.9 μs VCC 1.8V column 11
Clock low to data out valid tAA 0.2 0.7 μs VCC 2.5V column 11
Bus free time before new transmission tBUF 1.3 μs VCC 1.8V column 11
Bus free time before new transmission tBUF 0.5 μs VCC 2.5V column 11
START hold time tHD.STA 0.6 μs VCC 1.8V column 11
START hold time tHD.STA 0.25 μs VCC 2.5V column 11
START set-up time tSU.STA 0.6 μs VCC 1.8V column 11
START set-up time tSU.STA 0.25 μs VCC 2.5V column 11
Data in hold time tHD.DAT 0 μs VCC 1.8V column 11
Data in set-up time tSU.DAT 100 ns VCC 1.8V column 11
Input rise time tR 0.3 μs VCC 1.8V column 11
Input fall time tF 300 ns VCC 1.8V column 11
Input fall time tF 100 ns VCC 2.5V column 11
STOP set-up time tSU.STO 0.6 μs VCC 1.8V column 11
STOP set-up time tSU.STO 0.25 μs VCC 2.5V column 11
Data out hold time tDH 100 ns VCC 1.8V column 11
Data out hold time tDH 50 ns VCC 2.5V column 11
Write cycle time (HK24C08HA variant) tWR 3 ms HK24C08HA product (TWR table, page 2) 2
Endurance 1e+06 Write Cycles 25°C, Page Mode, 3.3V 11

CAD (KiCad official)

  • Symbol: HK24C08HA-USR-B
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: hk24c08ha-usr-b-etched.step / hk24c08ha-usr-b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hk24c08ha-usr-b.step / hk24c08ha-usr-b.glb are the bare package body.

Provenance

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

  • Datasheet: HK datasheet (18 pp, sha256 61bb580ce10256ad, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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