component
HTM1640-TD
Public Made by Adomby adom
TDSEMIC LED Drivers, SOP-28. 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
markdownHTM1640-TD
TDSEMIC · LED Drivers · SOP-28
HTM1640-TD from TDSEMIC, in a SOP-28. 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 | GRID12 | output | Digit (grid) 12 output, N-channel open-drain. |
| 2 | GRID13 | output | Digit (grid) 13 output, N-channel open-drain. |
| 3 | GRID14 | output | Digit (grid) 14 output, N-channel open-drain. |
| 4 | GRID15 | output | Digit (grid) 15 output, N-channel open-drain. |
| 5 | GRID16 | output | Digit (grid) 16 output, N-channel open-drain. |
| 6 | VSS | power_in | Logic ground, connect to system ground. |
| 7 | DIN | input | Serial data input; input data changes on the low level of CLK and is transferred on the high level of CLK. |
| 8 | SCLK | input | Clock input; data is latched on the rising edge. |
| 9 | SEG1 | output | Segment 1 output, P-channel open-drain. |
| 10 | SEG2 | output | Segment 2 output, P-channel open-drain. |
| 11 | SEG3 | output | Segment 3 output, P-channel open-drain. |
| 12 | SEG4 | output | Segment 4 output, P-channel open-drain. |
| 13 | SEG5 | output | Segment 5 output, P-channel open-drain. |
| 14 | SEG6 | output | Segment 6 output, P-channel open-drain. |
| 15 | SEG7 | output | Segment 7 output, P-channel open-drain. |
| 16 | SEG8 | output | Segment 8 output, P-channel open-drain. |
| 17 | VDD | power_in | Logic supply, 5V ±10% per pin table (recommended range 3 to 5.5 V, absolute maximum -0.5 to +7.0 V). |
| 18 | GRID1 | output | Digit (grid) 1 output, N-channel open-drain. |
| 19 | GRID2 | output | Digit (grid) 2 output, N-channel open-drain. |
| 20 | GRID3 | output | Digit (grid) 3 output, N-channel open-drain. |
| 21 | GRID4 | output | Digit (grid) 4 output, N-channel open-drain. |
| 22 | GRID5 | output | Digit (grid) 5 output, N-channel open-drain. |
| 23 | GRID6 | output | Digit (grid) 6 output, N-channel open-drain. |
| 24 | GRID7 | output | Digit (grid) 7 output, N-channel open-drain. |
| 25 | GRID8 | output | Digit (grid) 8 output, N-channel open-drain. |
| 26 | GRID9 | output | Digit (grid) 9 output, N-channel open-drain. |
| 27 | GRID10 | output | Digit (grid) 10 output, N-channel open-drain. |
| 28 | GRID11 | output | Digit (grid) 11 output, N-channel open-drain. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TDSEMIC |
| Package | SOP-28 |
| Category | LED Drivers |
| Pins | 28 |
CAD (KiCad official)
- Symbol:
HTM1640-TD - Footprint:
Package_SO:SOP-28_8.4x18.16mm_P1.27mm - 3D model: SOP-28 (KiCad packages3D, STEP)
- 3D model files:
htm1640-td-etched.step/htm1640-td-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);htm1640-td.step/htm1640-td.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TDSEMIC datasheet (14 pp, sha256
78ad4d44327d95f1, 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).