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CAT4016Y-T2
Public Made by Adomby adom
onsemi LED Drivers, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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CAT4016Y-T2
onsemi · LED Drivers · TSSOP-24
CAT4016Y-T2 from onsemi, in a TSSOP-24. 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 | GND | power_in | Ground reference pin that must be connected to the ground plane on the PCB. |
| 2 | SIN | input | Serial data input; data is loaded into the internal register on each rising edge of CLK. |
| 3 | CLK | input | Serial clock input; on each rising edge data is transferred from SIN to the internal 16-bit shift register, up to 25 MHz. |
| 4 | LATCH | input | Latch data input; the rising edge loads the 16-bit shift register into the output register latch and the falling edge latches it, with an internal pull-down of 100 to 300 kΩ. |
| 5 | LED1 | output | LED channel 1 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 6 | LED2 | output | LED channel 2 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 7 | LED3 | output | LED channel 3 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 8 | LED4 | output | LED channel 4 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 9 | LED5 | output | LED channel 5 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 10 | LED6 | output | LED channel 6 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 11 | LED7 | output | LED channel 7 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 12 | LED8 | output | LED channel 8 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 13 | LED9 | output | LED channel 9 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 14 | LED10 | output | LED channel 10 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 15 | LED11 | output | LED channel 11 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 16 | LED12 | output | LED channel 12 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 17 | LED13 | output | LED channel 13 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 18 | LED14 | output | LED channel 14 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 19 | LED15 | output | LED channel 15 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 20 | LED16 | output | LED channel 16 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 21 | BLANK | input | LED enable/disable input: low enables LEDs per the latch register, high turns all LEDs off while preserving latch data, with an internal pull-up of 100 to 300 kΩ. |
| 22 | SOUT | output | Serial data output of the 16-bit shift register, connected to SIN of the next device to cascade devices. |
| 23 | RSET | passive | LED current setting pin with a resistor to ground; each channel current is 50 times the current pulled out of the pin, which is regulated to 1.2 V. |
| 24 | VDD | power_in | Positive supply pin for the entire device, 3.0 to 5.5 V, with a small 1 µF ceramic capacitor recommended close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TSSOP-24 |
| Category | Display Modules / LED Drivers / Display Drivers |
| Pins | 24 |
CAD (KiCad official)
- Symbol:
CAT4016Y-T2 - Footprint:
Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm - 3D model: TSSOP-24 (KiCad packages3D, STEP)
- 3D model files:
cat4016y-t2-etched.step/cat4016y-t2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cat4016y-t2.step/cat4016y-t2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (14 pp, sha256
5d8305b4b405dffe, retrieved 2026-10-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(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).
# CAT4016Y-T2
**onsemi** · LED Drivers · TSSOP-24
CAT4016Y-T2 from onsemi, in a TSSOP-24. 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 | GND | power_in | Ground reference pin that must be connected to the ground plane on the PCB. |
| 2 | SIN | input | Serial data input; data is loaded into the internal register on each rising edge of CLK. |
| 3 | CLK | input | Serial clock input; on each rising edge data is transferred from SIN to the internal 16-bit shift register, up to 25 MHz. |
| 4 | LATCH | input | Latch data input; the rising edge loads the 16-bit shift register into the output register latch and the falling edge latches it, with an internal pull-down of 100 to 300 kΩ. |
| 5 | LED1 | output | LED channel 1 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 6 | LED2 | output | LED channel 2 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 7 | LED3 | output | LED channel 3 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 8 | LED4 | output | LED channel 4 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 9 | LED5 | output | LED channel 5 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 10 | LED6 | output | LED channel 6 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 11 | LED7 | output | LED channel 7 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 12 | LED8 | output | LED channel 8 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 13 | LED9 | output | LED channel 9 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 14 | LED10 | output | LED channel 10 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 15 | LED11 | output | LED channel 11 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 16 | LED12 | output | LED channel 12 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 17 | LED13 | output | LED channel 13 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 18 | LED14 | output | LED channel 14 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 19 | LED15 | output | LED channel 15 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 20 | LED16 | output | LED channel 16 cathode current sink with current equal to 50 times the RSET pin current; the pin voltage must be above 0.4 V. |
| 21 | BLANK | input | LED enable/disable input: low enables LEDs per the latch register, high turns all LEDs off while preserving latch data, with an internal pull-up of 100 to 300 kΩ. |
| 22 | SOUT | output | Serial data output of the 16-bit shift register, connected to SIN of the next device to cascade devices. |
| 23 | RSET | passive | LED current setting pin with a resistor to ground; each channel current is 50 times the current pulled out of the pin, which is regulated to 1.2 V. |
| 24 | VDD | power_in | Positive supply pin for the entire device, 3.0 to 5.5 V, with a small 1 µF ceramic capacitor recommended close to the pin. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TSSOP-24 |
| Category | Display Modules / LED Drivers / Display Drivers |
| Pins | 24 |
## CAD (KiCad official)
- Symbol: `CAT4016Y-T2`
- Footprint: `Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm`
- 3D model: TSSOP-24 (KiCad packages3D, STEP)
- 3D model files: `cat4016y-t2-etched.step` / `cat4016y-t2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cat4016y-t2.step` / `cat4016y-t2.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/cat4016y-t2-d.pdf) (14 pp, sha256 `5d8305b4b405dffe`, retrieved 2026-10-27, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/cat4016y-t2-datasheet.pdf)