component
CAT24C08YI-GT3
Public Made by Adomby adom
onsemi 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
markdownCAT24C08YI-GT3
onsemi · EEPROM · TSSOP-8
CAT24C08YI-GT3 from onsemi, 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 | NC | unconnected | No connect on the CAT24C08 (this position is A0 on the CAT24C02). |
| 2 | NC | unconnected | No connect on the CAT24C08 (this position is A1 on the CAT24C04 and CAT24C02). |
| 3 | A2 | input | Device address input that sets the device address when cascading multiple devices (up to two CAT24C08) and must match the A2 bit in the slave address; pulled LOW internally when not driven. |
| 4 | VSS | power_in | Ground. |
| 5 | SDA | bidirectional | Serial data input/output that receives input data and transmits EEPROM data; open drain in transmit mode, data acquired on the positive SCL edge and delivered on the negative edge. |
| 6 | SCL | input | Serial clock input that accepts the serial clock generated by the master (100 kHz Standard, 400 kHz Fast). |
| 7 | WP | input | Write protect input that inhibits all write operations to the entire memory when pulled HIGH; pulled LOW internally when not driven. |
| 8 | VCC | power_in | Power supply, 1.7 V to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| 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 |
|---|---|---|---|---|---|---|---|
| Storage Temperature | -65 | 150 | °C | 3 | |||
| Voltage on any pin with respect to Ground | -0.5 | 6.5 | V | 3 | |||
| Supply voltage | VCC | 1.7 | 5.5 | V | TA = −40°C to +85°C | 3 | |
| Ambient operating temperature (Industrial) | TA | -40 | 85 | °C | Industrial range (Note 9) | 10 | |
| Read Current | ICCR | 1 | mA | Read, fSCL = 400 kHz | 3 | ||
| Write Current | ICCW | 2 | mA | Write, fSCL = 400 kHz | 3 | ||
| Standby Current | ISB | 1 | uA | All I/O Pins at GND or VCC, TA = −40°C to +85°C, VCC ≤ 3.3 V | 3 | ||
| Standby Current | ISB | 3 | uA | All I/O Pins at GND or VCC, TA = −40°C to +85°C, VCC > 3.3 V | 3 | ||
| I/O Pin Leakage | IL | 2 | uA | Pin at GND or VCC | 3 | ||
| Input Low Voltage | VIL | -0.5 | V | 3 | |||
| Input High Voltage (SCL and SDA) | VIH | 5.5 | V | 3 | |||
| Output Low Voltage | VOL | 0.4 | V | VCC > 2.5 V, IOL = 3 mA | 3 | ||
| Output Low Voltage | VOL | 0.2 | V | VCC < 2.5 V, IOL = 1 mA | 3 | ||
| SDA Pin Capacitance | CIN | 8 | pF | VIN = 0 V, f = 1.0 MHz, VCC = 5.0 V | 4 | ||
| Other Pins Capacitance | CIN | 6 | pF | 4 | |||
| WP Input Current | IWP | 130 | uA | VIN < VIH, VCC = 5.5 V | 4 | ||
| WP Input Current | IWP | 120 | uA | VIN < VIH, VCC = 3.3 V | 4 | ||
| WP Input Current | IWP | 80 | uA | VIN < VIH, VCC = 1.7 V | 4 | ||
| WP Input Current | IWP | 2 | uA | VIN > VIH | 4 | ||
| Address Input Current (A0, A1, A2) | IA | 50 | uA | VIN < VIH, VCC = 5.5 V | 4 | ||
| Address Input Current (A0, A1, A2) | IA | 35 | uA | VIN < VIH, VCC = 3.3 V | 4 | ||
| Address Input Current (A0, A1, A2) | IA | 25 | uA | VIN < VIH, VCC = 1.7 V | 4 | ||
| Address Input Current (A0, A1, A2) | IA | 2 | uA | VIN > VIH | 4 | ||
| Clock Frequency | FSCL | 100 | kHz | Standard mode (100 kHz) | 4 | ||
| Clock Frequency | FSCL | 400 | kHz | Fast mode (400 kHz) | 4 | ||
| START Condition Hold Time | tHD:STA | 4 | us | Standard mode (100 kHz) | 4 | ||
| START Condition Hold Time | tHD:STA | 0.6 | us | Fast mode (400 kHz) | 4 | ||
| Low Period of SCL Clock | tLOW | 4.7 | us | Standard mode (100 kHz) | 4 | ||
| Low Period of SCL Clock | tLOW | 1.3 | us | Fast mode (400 kHz) | 4 | ||
| High Period of SCL Clock | tHIGH | 4 | us | Standard mode (100 kHz) | 4 | ||
| High Period of SCL Clock | tHIGH | 0.6 | us | Fast mode (400 kHz) | 4 | ||
| START Condition Setup Time | tSU:STA | 4.7 | us | Standard mode (100 kHz) | 4 | ||
| START Condition Setup Time | tSU:STA | 0.6 | us | Fast mode (400 kHz) | 4 | ||
| Data In Hold Time | tHD:DAT | 0 | us | Standard mode (100 kHz) | 4 | ||
| Data In Setup Time | tSU:DAT | 250 | ns | Standard mode (100 kHz) | 4 | ||
| Data In Setup Time | tSU:DAT | 100 | ns | Fast mode (400 kHz) | 4 | ||
| SDA and SCL Rise Time | tR | 1000 | ns | Standard mode (100 kHz) | 4 | ||
| SDA and SCL Rise Time | tR | 300 | ns | Fast mode (400 kHz) | 4 | ||
| SDA and SCL Fall Time | tF | 300 | ns | Standard mode (100 kHz) | 4 | ||
| STOP Condition Setup Time | tSU:STO | 4 | us | Standard mode (100 kHz) | 4 | ||
| STOP Condition Setup Time | tSU:STO | 0.6 | us | Fast mode (400 kHz) | 4 | ||
| Bus Free Time Between STOP and START | tBUF | 4.7 | us | Standard mode (100 kHz) | 4 | ||
| Bus Free Time Between STOP and START | tBUF | 1.3 | us | Fast mode (400 kHz) | 4 | ||
| SCL Low to Data Out Valid | tAA | 3.5 | us | Standard mode (100 kHz) | 4 | ||
| SCL Low to Data Out Valid | tAA | 0.9 | us | Fast mode (400 kHz) | 4 | ||
| Data Out Hold Time | tDH | 100 | ns | Standard mode (100 kHz) | 4 | ||
| Noise Pulse Filtered at SCL and SDA Inputs | Ti | 100 | ns | Standard mode (100 kHz) | 4 | ||
| WP Setup Time | tSU:WP | 0 | us | Standard mode (100 kHz) | 4 | ||
| WP Hold Time | tHD:WP | 2.5 | us | Standard mode (100 kHz) | 4 | ||
| Write Cycle Time | tWR | 5 | ms | Standard mode (100 kHz) | 4 | ||
| Power-up to Ready Mode | tPU | 1 | ms | Standard mode (100 kHz) | 4 |
CAD (KiCad official)
- Symbol:
CAT24C08YI-GT3 - Footprint:
Package_SO:TSSOP-8_3x3mm_P0.65mm - 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
cat24c08yi-gt3-etched.step/cat24c08yi-gt3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cat24c08yi-gt3.step/cat24c08yi-gt3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (17 pp, sha256
ee973dbc065d4e9c, retrieved 2026-10-21, 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).