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CT1642-TD

Public Made by Adom

by adom

TDSEMIC LED Drivers, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CT1642-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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ct1642-td.step / ct1642-td.glb are 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, 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