component
CT1642-TD
Public Made by Adomby adom
TDSEMIC LED Drivers, DIP-16. 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
markdownCT1642-TD
TDSEMIC · LED Drivers · DIP-16
CT1642-TD from TDSEMIC, in a DIP-16. 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 | Q0 | output | Segment output Q0, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor. |
| 2 | Q1 | output | Segment output Q1, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor. |
| 3 | Q2 | output | Segment output Q2, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor. |
| 4 | Q3 | output | Segment output Q3, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor. |
| 5 | Q4 | output | Segment output Q4, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor. |
| 6 | Q5 | output | Segment output Q5, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor. |
| 7 | Q6 | output | Segment output Q6, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor. |
| 8 | Q7 | output | Segment output Q7, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor. |
| 9 | C1 | output | Digit output C1, N-ch open drain for LED cathode, maximum current 200mA, built-in 50K pull-up resistor. |
| 10 | C2 | output | Digit output C2, N-ch open drain for LED cathode, maximum current 200mA, built-in 50K pull-up resistor. |
| 11 | C3 | output | Digit output C3, N-ch open drain for LED cathode, maximum current 200mA, built-in 50K pull-up resistor. |
| 12 | C4 | output | Digit output C4, N-ch open drain for LED cathode, maximum current 200mA, built-in 50K pull-up resistor. |
| 13 | CLK | input | Clock input, data is written on the rising edge, built-in 10K pull-up resistor. |
| 14 | DATA | input | Serial data input, stored in the IC register after writing, built-in 10K pull-up resistor. |
| 15 | VDD | power_in | Logic power supply, 3V min, 3.3V typ, 5V max (absolute maximum -0.5 to +4.6V). |
| 16 | GND | power_in | Logic ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TDSEMIC |
| Package | DIP-16 |
| Category | LED Drivers |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
CT1642-TD - Footprint:
Package_DIP:DIP-16_W7.62mm - 3D model: DIP-16 (KiCad packages3D, STEP)
- 3D model files:
ct1642-td-etched.step/ct1642-td-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ct1642-td.step/ct1642-td.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TDSEMIC datasheet (11 pp, sha256
d7dbdd7e33c8fe81, retrieved 2026-10-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).