component

TM1668

Public Unreviewed

by Ray

TM Shenzhen Titan Micro Elec LED Display Drivers, SSOP-24-208mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentled-drvtm1668
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

Datasheet

Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

TM1668

TM Shenzhen Titan Micro Elec · LED Display Drivers · SSOP-24-208mil

TM1668 from TM Shenzhen Titan Micro Elec, in a SSOP-24-208mil. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 DIO bidirectional Serial data input/output. Data is shifted in/out LSB-first on the rising edge of CLK. Output is open-drain (N-channel); requires an external pull-up resistor (recommended 10 kΩ to VCC) when reading key data. Read data on the rising CLK edge for stability.
2 CLK input Serial clock input. Data on DIO is latched on the rising edge. Ignored while STB is high.
3 STB input Chip select / strobe. Serial interface is initialized on a rising or falling edge; the first byte after a falling edge is treated as a command. When STB goes high mid-transfer, the current operation is terminated and CLK is ignored.
4 K1 input Key scan data input row 1. Data on this pin is latched at the end of each display cycle for the 10x2 key matrix.
5 K2 input Key scan data input row 2. Data on this pin is latched at the end of each display cycle for the 10x2 key matrix.
6 VDD power_in Logic supply, 5 V ±10%. Bypass with a decoupling capacitor to GND.
7 SEG1/KS1 output Segment driver output 1 (P-channel open-drain, high-voltage). Also used as key-scan strobe KS1 for the keyboard matrix.
8 SEG2/KS2 output Segment driver output 2 (P-channel open-drain). Also used as key-scan strobe KS2.
9 SEG3/KS3 output Segment driver output 3 (P-channel open-drain). Also used as key-scan strobe KS3.
10 SEG4/KS4 output Segment driver output 4 (P-channel open-drain). Also used as key-scan strobe KS4.
11 SEG5/KS5 output Segment driver output 5 (P-channel open-drain). Also used as key-scan strobe KS5.
12 SEG6/KS6 output Segment driver output 6 (P-channel open-drain). Also used as key-scan strobe KS6.
13 SEG7/KS7 output Segment driver output 7 (P-channel open-drain). Also used as key-scan strobe KS7.
14 SEG8/KS8 output Segment driver output 8 (P-channel open-drain). Also used as key-scan strobe KS8.
15 SEG9/KS9 output Segment driver output 9 (P-channel open-drain). Also used as key-scan strobe KS9.
16 SEG10/KS10 output Segment driver output 10 (P-channel open-drain). Also used as key-scan strobe KS10.
17 SEG12/GRID7 output Segment 12 driver output when in 10-grid mode, or grid 7 driver (N-channel open-drain, high-voltage) when configured for additional grids.
18 SEG13/GRID6 output Segment 13 driver output, or grid 6 driver (N-channel open-drain), selected by display mode.
19 SEG14/GRID5 output Segment 14 driver output, or grid 5 driver (N-channel open-drain), selected by display mode.
20 GRID4 output Grid driver output 4 (N-channel open-drain, high-voltage). Sinks current for the corresponding digit/grid line.
21 GRID3 output Grid driver output 3 (N-channel open-drain).
22 GND power_in Logic ground. Connect to system ground.
23 GRID2 output Grid driver output 2 (N-channel open-drain).
24 GRID1 output Grid driver output 1 (N-channel open-drain).

Key specifications

Parameter Value
Manufacturer TM Shenzhen Titan Micro Elec
Package SSOP-24-208mil
Category LED-drv
Pins 24

CAD (KiCad official)

  • Symbol: TM1668
  • Footprint: Package_SO:SSOP-24_5.3x8.2mm_P0.65mm
  • 3D model: SSOP-24-208mil (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: TM Shenzhen Titan Micro Elec datasheet (21 pp, sha256 ce4f70a05bd823a1, retrieved 2026-08-17, 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF