component
HE24C64TSH
Public Made by Adomby adom
HUAHONG EEPROM, TSSOP-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
markdownHE24C64TSH
HUAHONG · EEPROM · TSSOP-8
HE24C64TSH from HUAHONG, in a TSSOP-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 hard wired to select one of eight 64K devices on a single bus; must match the A0 bit of the device address word. |
| 2 | A1 | input | Device address input hard wired to select one of eight 64K devices on a single bus; must match the A1 bit of the device address word. |
| 3 | A2 | input | Device address input hard wired to select one of eight 64K devices on a single bus; must match the A2 bit of the device address word. |
| 4 | GND | power_in | Ground. |
| 5 | SDA | bidirectional | Bidirectional serial data pin, open-drain driven, 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 EEPROM on the positive edge and out on the negative edge, with up to 1 MHz at 2.5V to 5.5V. |
| 7 | WP | input | Write protect input: normal read/write when connected to GND, and the full 64K array is write-protected when connected to VCC. |
| 8 | VCC | power_in | Power supply, 1.7V to 5.5V operating range (absolute maximum -0.3V to +6.5V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HUAHONG |
| Package | TSSOP-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 | 1.7 | 5.5 | V | 9 | ||
| DC Supply Voltage | -0.3 | 6.5 | V | 9 | |||
| Input / Output Voltage | -0.3 | V | Min referenced to GND; max printed as VCC+0.3V | 9 | |||
| Operating Ambient Temperature | -40 | 85 | ℃ | 1 | |||
| Storage Temperature | -65 | 150 | ℃ | 9 | |||
| Supply Current | ICC1 | 0.14 | 0.3 | mA | VCC = 5.0V; READ at 400KHz | 9 | |
| Supply Current | ICC2 | 0.28 | 0.5 | mA | VCC = 5.0V; WRITE at 400KHz | 9 | |
| Standby Current | ISB | 0.03 | 0.5 | μA | VIN=VCC or GND | 9 | |
| Input Leakage Current | ILI | 0.1 | 1 | μA | VIN=VCC or GND | 9 | |
| Output Leakage Current | ILO | 0.05 | 1 | μA | VOUT=VCC or GND | 9 | |
| Input Low Level | VIL1 | -0.3 | V | Vcc=1.7V to 5.5V | 9 | ||
| Output Low Level | VOL3 | 0.4 | V | VCC =5.0V; IOL=3.0mA | 9 | ||
| Output Low Level | VOL1 | 0.2 | V | VCC =1.7V; IOL=0.15mA | 9 | ||
| Input/Output Capacitance (SDA) | CI/O | 8 | pF | TA=25℃, f=1.0 MHz, VCC=+1.7V; VI/O = 0V | 10 | ||
| Input Capacitance (A0, A1, A2, SCL) | CIN | 6 | pF | TA=25℃, f=1.0 MHz, VCC=+1.7V; VIN = 0V | 10 | ||
| Clock Frequency, SCL | fSCL | 400 | KHz | 1.7V < Vcc < 2.5V | 10 | ||
| Clock Frequency, SCL | fSCL | 1000 | KHz | 2.5V < Vcc < 5.5V | 10 | ||
| Clock Pulse Width Low | tLOW | 1.2 | s | 1.7V < Vcc < 2.5V | 10 | ||
| Clock Pulse Width Low | tLOW | 0.6 | s | 2.5V < Vcc < 5.5V | 10 | ||
| Clock Pulse Width High | tHIGH | 0.6 | s | 1.7V < Vcc < 2.5V | 10 | ||
| Clock Pulse Width High | tHIGH | 0.4 | s | 2.5V < Vcc < 5.5V | 10 | ||
| Noise Suppression Time | tI | 50 | ns | 1.7V < Vcc < 2.5V | 10 | ||
| Noise Suppression Time | tI | 40 | ns | 2.5V < Vcc < 5.5V | 10 | ||
| Clock Low to Data Out Valid | tAA | 0.05 | 0.9 | s | 1.7V < Vcc < 2.5V | 10 | |
| Clock Low to Data Out Valid | tAA | 0.05 | 0.55 | s | 2.5V < Vcc < 5.5V | 10 | |
| Time the bus must be free before a new transmission can start | tBUF | 0.5 | s | 1.7V < Vcc < 2.5V | 10 | ||
| Start Hold Time | tHD.STA | 0.25 | s | 1.7V < Vcc < 2.5V | 10 | ||
| Start Setup Time | tSU.STA | 0.25 | s | 1.7V < Vcc < 2.5V | 10 | ||
| Data In Hold Time | tHD.DAT | 0 | s | 1.7V < Vcc < 2.5V | 10 | ||
| Data In Setup Time | tSU.DAT | 100 | ns | 1.7V < Vcc < 2.5V | 10 | ||
| Inputs Rise Time | tR | 0.3 | us | 1.7V < Vcc < 2.5V | 10 | ||
| Inputs Fall Time | tF | 0.3 | us | 1.7V < Vcc < 2.5V | 10 | ||
| Stop Setup Time | tSU.STO | 0.25 | s | 1.7V < Vcc < 2.5V | 10 | ||
| Data Out Hold Time | tDH | 50 | ns | 1.7V < Vcc < 2.5V | 10 | ||
| Write Cycle Time | tWR | 1.9 | 3 | ms | 1.7V < Vcc < 2.5V; 5.0V, 25℃, Byte Mode | 10 |
CAD (KiCad official)
- Symbol:
HE24C64TSH - Footprint:
Package_SO:TSSOP-8_3x3mm_P0.65mm - 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
he24c64tsh-etched.step/he24c64tsh-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);he24c64tsh.step/he24c64tsh.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HUAHONG datasheet (16 pp, sha256
78a38da23411c3f9, retrieved 2026-10-17, 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).