component
AT24LC64N
Public Made by Adomby adom
HGSEMI EEPROM, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownAT24LC64N
HGSEMI · EEPROM · DIP-8
AT24LC64N from HGSEMI, in a DIP-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 that is hard wired; up to eight 32K/64K devices can share one bus. |
| 2 | A1 | input | Device address input that is hard wired; up to eight 32K/64K devices can share one bus. |
| 3 | A2 | input | Device address input that is hard wired; up to eight 32K/64K devices can share one bus. |
| 4 | GND | power_in | Ground. |
| 5 | SDA | bidirectional | Bidirectional open-drain serial data pin that may be wire-ORed with other open-drain or open-collector devices and needs an external pull-up. |
| 6 | SCL | input | Serial clock input that clocks data into the device on the positive edge and out on the negative edge. |
| 7 | WP | input | Write protect input: connected to GND allows normal read/write, connected to VCC protects the full array. |
| 8 | VCC | power_in | Power supply, 1.8V to 5.5V operating range. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | DIP-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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | Vcc | 1.8 | 5.5 | V | 9 | ||
| Supply Current (Read) | Icc1 | 0.4 | 1 | mA | Vcc=5.0V, Read @100KHz | 9 | |
| Supply Current (Write) | Icc2 | 2 | 3 | mA | Vcc=5.0V, Write @100KHz | 9 | |
| Standby Current | ISB | 2 | uA | Vin=Vcc or GND | 9 | ||
| Input Leakage Current | ILI | 3 | uA | Vin=Vcc or GND | 9 | ||
| Output Leakage Current | ILO | 0.05 | 3 | uA | Vout=Vcc or GND | 9 | |
| Output Low Level (Vcc=5.0V) | VOL3 | 0.4 | V | Vcc=5.0V, IOL=3.0mA | 9 | ||
| Output Low Level (Vcc=3.0V) | VOL2 | 0.4 | V | Vcc=3.0V, IOL=2.1mA | 9 | ||
| Output Low Level (Vcc=1.8V) | VOL1 | 0.2 | V | Vcc=1.8V, IOL=0.15mA | 9 | ||
| Input/Output Capacitance (SDA) | CI/O | 8 | pF | VI/O = 0V | 9 | ||
| Input Capacitance (A0, A1, A2, SCL) | CIN | 6 | pF | VIN = 0V | 9 | ||
| DC Supply Voltage (absolute maximum) | -0.3 | 6.5 | V | 9 | |||
| Operating Ambient Temperature (absolute maximum table) | -40 | 85 | ℃ | 9 | |||
| Storage Temperature | -65 | 150 | ℃ | 9 | |||
| Lead Temperature | 260 | ℃ | Soldering, 10 seconds | 9 | |||
| Clock Frequency, SCL (1.8V) | fSCL | 400 | KHz | 10 | |||
| Clock Frequency, SCL (5.0V) | fSCL | 1000 | KHz | 10 | |||
| Clock Pulse Width Low (1.8V) | tLOW | 1.2 | us | 10 | |||
| Clock Pulse Width Low (5.0V) | tLOW | 0.6 | us | 10 | |||
| Clock Pulse Width High (1.8V) | tHIGH | 0.6 | us | 10 | |||
| Clock Pulse Width High (5.0V) | tHIGH | 0.4 | us | 10 | |||
| Noise Suppression Time (1.8V) | tI | 50 | us | 10 | |||
| Noise Suppression Time (5.0V) | tI | 40 | us | 10 | |||
| Clock Low to Data Out Valid (1.8V) | tAA | 0.05 | 0.9 | us | 10 | ||
| Clock Low to Data Out Valid (5.0V) | tAA | 0.05 | 0.55 | us | 10 | ||
| Bus Free Time before New Transmission (1.8V) | tBUF | 1.2 | us | 10 | |||
| Bus Free Time before New Transmission (5.0V) | tBUF | 0.5 | us | 10 | |||
| Start Hold Time (1.8V) | tHD.STA | 0.6 | us | 10 | |||
| Start Hold Time (5.0V) | tHD.STA | 0.25 | us | 10 | |||
| Start Setup Time (1.8V) | tSU.STA | 0.6 | us | 10 | |||
| Start Setup Time (5.0V) | tSU.STA | 0.25 | us | 10 | |||
| Data In Hold Time (1.8V) | tHD.DAT | 0 | us | 10 | |||
| Data In Hold Time (5.0V) | tHD.DAT | 0 | us | 10 | |||
| Data In Setup Time (1.8V) | tSU.DAT | 100 | ns | 10 | |||
| Data In Setup Time (5.0V) | tSU.DAT | 100 | ns | 10 | |||
| Inputs Rise Time (1.8V) | tR | 0.3 | us | 10 | |||
| Inputs Rise Time (5.0V) | tR | 0.3 | us | 10 | |||
| Inputs Fall Time (1.8V) | tF | 300 | ns | 10 | |||
| Inputs Fall Time (5.0V) | tF | 100 | ns | 10 | |||
| Stop Setup Time (1.8V) | tSU.STO | 0.6 | us | 10 | |||
| Stop Setup Time (5.0V) | tSU.STO | 0.25 | us | 10 | |||
| Data Out Hold Time (1.8V) | tDH | 50 | ns | 10 | |||
| Data Out Hold Time (5.0V) | tDH | 50 | ns | 10 | |||
| Write Cycle Time (1.8V) | tWR | 5 | ms | 10 | |||
| Write Cycle Time (5.0V) | tWR | 5 | ms | 10 |
CAD (KiCad official)
- Symbol:
AT24LC64N - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files:
at24lc64n-etched.step/at24lc64n-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);at24lc64n.step/at24lc64n.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (15 pp, sha256
804d1549093c782d, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).