component
CAT34C02YI-GT5A
Public Made by Adomby adom
onsemi EEPROM, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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Ray
Publish 0.1.0
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CAT34C02YI-GT5A
onsemi · EEPROM · TSSOP-8
CAT34C02YI-GT5A 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 | A0 | input | Device address input with an on-chip pull-down; selects one of 8 possible slave devices and accepts the very high voltage VHV (7 V to 10 V) for RSWP operations. |
| 2 | A1 | input | Device address input with an on-chip pull-down; selects one of 8 possible slave devices. |
| 3 | A2 | input | Device address input with an on-chip pull-down; selects one of 8 possible slave devices. |
| 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. |
| 6 | SCL | input | Serial clock input that accepts the clock generated by the master. |
| 7 | WP | input | Write protect input with an on-chip pull-down that inhibits all write operations when pulled HIGH. |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating Temperature | -45 | 130 | °C | 2 | |||
| Storage Temperature | -65 | 150 | °C | 2 | |||
| Voltage on Any Pin with Respect to Ground | -0.5 | 6.5 | V | 2 | |||
| Voltage on Pin A0 with Respect to Ground | -0.5 | 10.5 | V | 2 | |||
| Supply Current | ICC | 1 | mA | VCC < 3.6 V, fSCL = 100 kHz | 2 | ||
| Supply Current | ICC | 2 | mA | VCC > 3.6 V, fSCL = 400 kHz | 2 | ||
| Standby Current | ISB | 1 | µA | All I/O pins at GND or VCC; TA = −40°C to +85°C; VCC ≤ 3.3 V | 2 | ||
| Standby Current | ISB | 3 | µA | All I/O pins at GND or VCC; TA = −40°C to +85°C; VCC > 3.3 V | 2 | ||
| I/O Pin Leakage | IL | 2 | µA | Pin at GND or VCC | 2 | ||
| Input Low Voltage | VIL | -0.5 | V | 2 | |||
| Input High Voltage | VIH | 4 | V | SDA and SCL, VCC = 0 V (footnote *) | 2 | ||
| Output Low Voltage | VOL | 0.4 | V | VCC > 2.5 V, IOL = 3 mA | 2 | ||
| Output Low Voltage | VOL | 0.2 | V | VCC < 2.5 V, IOL = 1 mA | 2 | ||
| SDA I/O Pin Capacitance | CIN | 8 | pF | VIN = 0 V, f = 1.0 MHz, VCC = 5.0 V | 2 | ||
| Other Input Pins Capacitance | CIN | 6 | pF | 2 | |||
| WP Input Current | IWP | 130 | µA | VIN < VIH, VCC = 5.5 V | 2 | ||
| WP Input Current | IWP | 120 | µA | VIN < VIH, VCC = 3.6 V | 2 | ||
| WP Input Current | IWP | 80 | µA | VIN < VIH, VCC = 1.7 V | 2 | ||
| Address Input Current (A0, A1, A2) | IA | 50 | µA | VIN < VIH, VCC = 5.5 V | 2 | ||
| Address Input Current (A0, A1, A2) | IA | 35 | µA | VIN < VIH, VCC = 3.6 V | 2 | ||
| Address Input Current (A0, A1, A2) | IA | 25 | µA | VIN < VIH, VCC = 1.7 V | 2 | ||
| Clock Frequency | FSCL | 100 | kHz | Standard mode | 3 | ||
| Clock Frequency | FSCL | 400 | kHz | Fast mode | 3 | ||
| START Condition Hold Time | tHD:STA | 4 | µs | Standard mode | 3 | ||
| START Condition Hold Time | tHD:STA | 0.6 | µs | Fast mode | 3 | ||
| Low Period of SCL Clock | tLOW | 4.7 | µs | Standard mode | 3 | ||
| Low Period of SCL Clock | tLOW | 1.3 | µs | Fast mode | 3 | ||
| High Period of SCL Clock | tHIGH | 4 | µs | Standard mode | 3 | ||
| High Period of SCL Clock | tHIGH | 0.6 | µs | Fast mode | 3 | ||
| START Condition Setup Time | tSU:STA | 4.7 | µs | Standard mode | 3 | ||
| START Condition Setup Time | tSU:STA | 0.6 | µs | Fast mode | 3 | ||
| Data Hold Time | tHD:DAT | 0 | µs | Standard mode | 3 | ||
| Data Setup Time | tSU:DAT | 250 | ns | Standard mode | 3 | ||
| Data Setup Time | tSU:DAT | 100 | ns | Fast mode | 3 | ||
| SDA and SCL Rise Time | tR | 1000 | ns | Standard mode | 3 | ||
| SDA and SCL Rise Time | tR | 300 | ns | Fast mode | 3 | ||
| SDA and SCL Fall Time | tF | 300 | ns | Standard mode | 3 | ||
| STOP Condition Setup Time | tSU:STO | 4 | µs | Standard mode | 3 | ||
| STOP Condition Setup Time | tSU:STO | 0.6 | µs | Fast mode | 3 | ||
| Bus Free Time Between STOP and START | tBUF | 4.7 | µs | Standard mode | 3 | ||
| Bus Free Time Between STOP and START | tBUF | 1.3 | µs | Fast mode | 3 | ||
| SCL Low to SDA Data Out | tAA | 3.5 | µs | Standard mode | 3 | ||
| SCL Low to SDA Data Out | tAA | 0.9 | µs | Fast mode | 3 | ||
| Data Out Hold Time | tDH | 100 | ns | Standard mode | 3 | ||
| Noise Pulse Filtered at SCL and SDA Inputs | Ti | 100 | ns | Standard mode | 3 | ||
| WP Setup Time | tSU:WP | 0 | µs | Standard mode | 3 | ||
| WP Hold Time | tHD:WP | 2.5 | µs | Standard mode | 3 | ||
| Write Cycle Time | tWR | 5 | ms | 3 | |||
| Power-up to Ready Mode | tPU | 1 | ms | 3 | |||
| A0 Overdrive (VHV − VCC) | VHV | 4.8 | V | 1.7 V < VCC < 3.6 V | 8 | ||
| A0 Very High Voltage | VHV | 7 | 10 | V | 8 | ||
| A0 Input Current @ VHV | IHV | 1 | mA | 8 | |||
| Junction-to-Ambient Thermal Resistance (TSSOP) | JA | 64 | °C/W | Air velocity = 0 m/s, 4 layers PCB | 3 | ||
| Junction-to-Case Thermal Resistance (TSSOP) | JC | 37 | °C/W | Air velocity = 0 m/s, 4 layers PCB | 3 |
CAD (KiCad official)
- Symbol:
CAT34C02YI-GT5A - Footprint:
Package_SO:TSSOP-8_4.4x3mm_P0.65mm - 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
cat34c02yi-gt5a-etched.step/cat34c02yi-gt5a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cat34c02yi-gt5a.step/cat34c02yi-gt5a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (14 pp, sha256
7ffdef766c3b2de8, retrieved 2026-11-05, tier: manufacturer) - 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).
# CAT34C02YI-GT5A
**onsemi** · EEPROM · TSSOP-8
CAT34C02YI-GT5A 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 | A0 | input | Device address input with an on-chip pull-down; selects one of 8 possible slave devices and accepts the very high voltage VHV (7 V to 10 V) for RSWP operations. |
| 2 | A1 | input | Device address input with an on-chip pull-down; selects one of 8 possible slave devices. |
| 3 | A2 | input | Device address input with an on-chip pull-down; selects one of 8 possible slave devices. |
| 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. |
| 6 | SCL | input | Serial clock input that accepts the clock generated by the master. |
| 7 | WP | input | Write protect input with an on-chip pull-down that inhibits all write operations when pulled HIGH. |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating Temperature | | -45 | | 130 | °C | | 2 |
| Storage Temperature | | -65 | | 150 | °C | | 2 |
| Voltage on Any Pin with Respect to Ground | | -0.5 | | 6.5 | V | | 2 |
| Voltage on Pin A0 with Respect to Ground | | -0.5 | | 10.5 | V | | 2 |
| Supply Current | ICC | | | 1 | mA | VCC < 3.6 V, fSCL = 100 kHz | 2 |
| Supply Current | ICC | | | 2 | mA | VCC > 3.6 V, fSCL = 400 kHz | 2 |
| Standby Current | ISB | | | 1 | µA | All I/O pins at GND or VCC; TA = −40°C to +85°C; VCC ≤ 3.3 V | 2 |
| Standby Current | ISB | | | 3 | µA | All I/O pins at GND or VCC; TA = −40°C to +85°C; VCC > 3.3 V | 2 |
| I/O Pin Leakage | IL | | | 2 | µA | Pin at GND or VCC | 2 |
| Input Low Voltage | VIL | -0.5 | | | V | | 2 |
| Input High Voltage | VIH | | | 4 | V | SDA and SCL, VCC = 0 V (footnote *) | 2 |
| Output Low Voltage | VOL | | | 0.4 | V | VCC > 2.5 V, IOL = 3 mA | 2 |
| Output Low Voltage | VOL | | | 0.2 | V | VCC < 2.5 V, IOL = 1 mA | 2 |
| SDA I/O Pin Capacitance | CIN | | | 8 | pF | VIN = 0 V, f = 1.0 MHz, VCC = 5.0 V | 2 |
| Other Input Pins Capacitance | CIN | | | 6 | pF | | 2 |
| WP Input Current | IWP | | | 130 | µA | VIN < VIH, VCC = 5.5 V | 2 |
| WP Input Current | IWP | | | 120 | µA | VIN < VIH, VCC = 3.6 V | 2 |
| WP Input Current | IWP | | | 80 | µA | VIN < VIH, VCC = 1.7 V | 2 |
| Address Input Current (A0, A1, A2) | IA | | | 50 | µA | VIN < VIH, VCC = 5.5 V | 2 |
| Address Input Current (A0, A1, A2) | IA | | | 35 | µA | VIN < VIH, VCC = 3.6 V | 2 |
| Address Input Current (A0, A1, A2) | IA | | | 25 | µA | VIN < VIH, VCC = 1.7 V | 2 |
| Clock Frequency | FSCL | | | 100 | kHz | Standard mode | 3 |
| Clock Frequency | FSCL | | | 400 | kHz | Fast mode | 3 |
| START Condition Hold Time | tHD:STA | 4 | | | µs | Standard mode | 3 |
| START Condition Hold Time | tHD:STA | 0.6 | | | µs | Fast mode | 3 |
| Low Period of SCL Clock | tLOW | 4.7 | | | µs | Standard mode | 3 |
| Low Period of SCL Clock | tLOW | 1.3 | | | µs | Fast mode | 3 |
| High Period of SCL Clock | tHIGH | 4 | | | µs | Standard mode | 3 |
| High Period of SCL Clock | tHIGH | 0.6 | | | µs | Fast mode | 3 |
| START Condition Setup Time | tSU:STA | 4.7 | | | µs | Standard mode | 3 |
| START Condition Setup Time | tSU:STA | 0.6 | | | µs | Fast mode | 3 |
| Data Hold Time | tHD:DAT | 0 | | | µs | Standard mode | 3 |
| Data Setup Time | tSU:DAT | 250 | | | ns | Standard mode | 3 |
| Data Setup Time | tSU:DAT | 100 | | | ns | Fast mode | 3 |
| SDA and SCL Rise Time | tR | | | 1000 | ns | Standard mode | 3 |
| SDA and SCL Rise Time | tR | | | 300 | ns | Fast mode | 3 |
| SDA and SCL Fall Time | tF | | | 300 | ns | Standard mode | 3 |
| STOP Condition Setup Time | tSU:STO | 4 | | | µs | Standard mode | 3 |
| STOP Condition Setup Time | tSU:STO | 0.6 | | | µs | Fast mode | 3 |
| Bus Free Time Between STOP and START | tBUF | 4.7 | | | µs | Standard mode | 3 |
| Bus Free Time Between STOP and START | tBUF | 1.3 | | | µs | Fast mode | 3 |
| SCL Low to SDA Data Out | tAA | | | 3.5 | µs | Standard mode | 3 |
| SCL Low to SDA Data Out | tAA | | | 0.9 | µs | Fast mode | 3 |
| Data Out Hold Time | tDH | 100 | | | ns | Standard mode | 3 |
| Noise Pulse Filtered at SCL and SDA Inputs | Ti | | | 100 | ns | Standard mode | 3 |
| WP Setup Time | tSU:WP | 0 | | | µs | Standard mode | 3 |
| WP Hold Time | tHD:WP | 2.5 | | | µs | Standard mode | 3 |
| Write Cycle Time | tWR | | | 5 | ms | | 3 |
| Power-up to Ready Mode | tPU | | | 1 | ms | | 3 |
| A0 Overdrive (VHV − VCC) | VHV | 4.8 | | | V | 1.7 V < VCC < 3.6 V | 8 |
| A0 Very High Voltage | VHV | 7 | | 10 | V | | 8 |
| A0 Input Current @ VHV | IHV | | | 1 | mA | | 8 |
| Junction-to-Ambient Thermal Resistance (TSSOP) | JA | | 64 | | °C/W | Air velocity = 0 m/s, 4 layers PCB | 3 |
| Junction-to-Case Thermal Resistance (TSSOP) | JC | | 37 | | °C/W | Air velocity = 0 m/s, 4 layers PCB | 3 |
## CAD (KiCad official)
- Symbol: `CAT34C02YI-GT5A`
- Footprint: `Package_SO:TSSOP-8_4.4x3mm_P0.65mm`
- 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `cat34c02yi-gt5a-etched.step` / `cat34c02yi-gt5a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cat34c02yi-gt5a.step` / `cat34c02yi-gt5a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/cat34c02yi-gt5a-d.pdf) (14 pp, sha256 `7ffdef766c3b2de8`, retrieved 2026-11-05, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).
[Datasheet PDF](docs/cat34c02yi-gt5a-datasheet.pdf)