component
HK24C08HA-USR-B
Public Made by Adomby adom
HK EEPROM, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"slug": "hk24c08ha-usr-b",
"title": "HK24C08HA-USR-B",
"brief": "HK EEPROM, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
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"hk24c08ha-usr-b",
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"component": {
"mpn": "HK24C08HA-USR-B",
"manufacturer": "HK",
"package": "SOP-8",
"pin_count": 8,
"category": "Memory",
"subcategory": "EEPROM",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604422987856957440",
"parts": {
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"distributor_links": {
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"source": "Component Ocean /api/assign-pns",
"digikey": {
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"status": "quota"
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"mouser": {
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},
"pins": [
{
"number": "1",
"name": "A0",
"type": "input",
"description": "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."
},
{
"number": "2",
"name": "A1",
"type": "input",
"description": "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."
},
{
"number": "3",
"name": "A2",
"type": "input",
"description": "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."
},
{
"number": "4",
"name": "GND",
"type": "power_in",
"description": "Ground reference for the device."
},
{
"number": "5",
"name": "SDA",
"type": "bidirectional",
"description": "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."
},
{
"number": "6",
"name": "SCL",
"type": "input",
"description": "Serial clock input where the rising edge latches data into the EEPROM and the falling edge clocks data out of the EEPROM."
},
{
"number": "7",
"name": "WP",
"type": "input",
"description": "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."
},
{
"number": "8",
"name": "VCC",
"type": "power_in",
"description": "Power supply, specified from 1.8V to 5.5V for the HK24C08."
}
],
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"factory_chain": {
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"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
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"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
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],
"pages_sent": 18,
"cost_usd": 0.0563,
"at": "2026-10-18T11:25:23"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604422987856957440",
"pages": 18,
"sha256": "61bb580ce10256ad",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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"described": 8,
"cites_pages": true,
"refuses_to_fabricate": true
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"metadata": {
"specs": {
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"Package": "SOP-8",
"Category": "Memory",
"Pins": "8"
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{
"name": "Industrial operating temperature",
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"min": -50,
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{
"name": "Input voltage on any pin relative to ground",
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"unit": "V",
"min": -0.3,
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"conditions": "Relative to ground; upper limit printed as VCC + 0.3V",
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{
"name": "Maximum voltage",
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"min": null,
"typ": null,
"max": 8,
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{
"name": "ESD protection on all pins",
"symbol": "",
"kind": "absolute_maximum",
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"min": 2000,
"typ": null,
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"conditions": "Printed as >2000V, all pins",
"source_page": 3,
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{
"name": "Supply read current",
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"kind": "electrical",
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{
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"conditions": "VCC @ 1.8V, VIN = VCC or VSS",
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{
"name": "Supply current (standby)",
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"kind": "electrical",
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"min": null,
"typ": 0.03,
"max": 0.1,
"conditions": "VCC @ 5.0V, VIN = VCC or VSS",
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{
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"name": "Input low level",
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"name": "Output low level",
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"min": null,
"typ": null,
"max": 0.4,
"conditions": "VCC @ 3.0V, IOL = 2.1 mA",
"source_page": 12,
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{
"name": "Clock frequency, SCL",
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"min": null,
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"name": "Clock pulse width low",
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"kind": "timing",
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{
"name": "Noise suppression time",
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{
"name": "Noise suppression time",
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"typ": null,
"max": 50,
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{
"name": "Clock low to data out valid",
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{
"name": "Clock low to data out valid",
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{
"name": "Bus free time before new transmission",
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"kind": "timing",
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"min": 1.3,
"typ": null,
"max": null,
"conditions": "VCC 1.8V column",
"source_page": 11,
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{
"name": "Bus free time before new transmission",
"symbol": "tBUF",
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"min": 0.5,
"typ": null,
"max": null,
"conditions": "VCC 2.5V column",
"source_page": 11,
"source": "datasheet"
},
{
"name": "START hold time",
"symbol": "tHD.STA",
"kind": "timing",
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"min": 0.6,
"typ": null,
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"conditions": "VCC 1.8V column",
"source_page": 11,
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{
"name": "START hold time",
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"kind": "timing",
"unit": "μs",
"min": 0.25,
"typ": null,
"max": null,
"conditions": "VCC 2.5V column",
"source_page": 11,
"source": "datasheet"
},
{
"name": "START set-up time",
"symbol": "tSU.STA",
"kind": "timing",
"unit": "μs",
"min": 0.6,
"typ": null,
"max": null,
"conditions": "VCC 1.8V column",
"source_page": 11,
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},
{
"name": "START set-up time",
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"kind": "timing",
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"typ": null,
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"conditions": "VCC 2.5V column",
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},
{
"name": "Data in hold time",
"symbol": "tHD.DAT",
"kind": "timing",
"unit": "μs",
"min": 0,
"typ": null,
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"conditions": "VCC 1.8V column",
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},
{
"name": "Data in set-up time",
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"kind": "timing",
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"min": 100,
"typ": null,
"max": null,
"conditions": "VCC 1.8V column",
"source_page": 11,
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{
"name": "Input rise time",
"symbol": "tR",
"kind": "timing",
"unit": "μs",
"min": null,
"typ": null,
"max": 0.3,
"conditions": "VCC 1.8V column",
"source_page": 11,
"source": "datasheet"
},
{
"name": "Input fall time",
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"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 300,
"conditions": "VCC 1.8V column",
"source_page": 11,
"source": "datasheet"
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{
"name": "Input fall time",
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"typ": null,
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"conditions": "VCC 2.5V column",
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{
"name": "STOP set-up time",
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"conditions": "VCC 1.8V column",
"source_page": 11,
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{
"name": "STOP set-up time",
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"kind": "timing",
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"conditions": "VCC 2.5V column",
"source_page": 11,
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},
{
"name": "Data out hold time",
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{
"name": "Data out hold time",
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"conditions": "VCC 2.5V column",
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},
{
"name": "Write cycle time (HK24C08HA variant)",
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{
"name": "Endurance",
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"unit": "Write Cycles",
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"conditions": "25°C, Page Mode, 3.3V",
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