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TM1622-LQFP44
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TM(Shenzhen Titan Micro Elec) LCD Drivers, LQFP-44(10x10). 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
markdownTM1622-LQFP44
TM(Shenzhen Titan Micro Elec) · LCD Drivers · LQFP-44(10x10)
TM1622-LQFP44 from TM(Shenzhen Titan Micro Elec), in a LQFP-44(10x10). 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 | CS | input | Active-low chip select: when high, data and command read/write are invalid and the serial interface is reset; when low, data and commands can be read and written normally. |
| 2 | RD | input | READ-mode clock input: on the falling edge of RD, display RAM data is output to the DATA line, and the host can latch it on the next rising edge of RD. |
| 3 | WR | input | WRITE-mode clock input: on the rising edge of WR, data on the DATA line is written into the TM1622. |
| 4 | DATA | bidirectional | Serial data input/output line. |
| 5 | VSS | power_in | System ground (GND). |
| 6 | OSCI | input | Input for an external 32 kHz clock source; leave floating when the internal RC oscillator is used. |
| 7 | VDD | power_in | Chip power supply input, 2.4 to 5.2 V operating voltage, with a decoupling capacitor to GND placed close to the chip. |
| 8 | VLCD | input | LCD bias voltage input, which must be less than or equal to VDD and is adjusted with a pull-up variable resistor to set the LCD drive voltage. |
| 9 | IRQ | output | Time-base or watchdog timer overflow flag output, NMOS open-drain, requiring a 10k pull-up resistor when used. |
| 10 | T1 | input | Bias input, not recommended for use in normal operation. |
| 11 | T2 | input | Bias input, not recommended for use in normal operation. |
| 12 | T3 | input | Bias input, not recommended for use in normal operation. |
| 13 | COM0 | output | LCD COM drive output (COM0). |
| 14 | COM1 | output | LCD COM drive output (COM1). |
| 15 | COM2 | output | LCD COM drive output (COM2). |
| 16 | COM3 | output | LCD COM drive output (COM3). |
| 17 | COM4 | output | LCD COM drive output (COM4). |
| 18 | COM5 | output | LCD COM drive output (COM5). |
| 19 | COM6 | output | LCD COM drive output (COM6). |
| 20 | COM7 | output | LCD COM drive output (COM7). |
| 21 | SEG0 | output | LCD SEG drive output (SEG0). |
| 22 | SEG1 | output | LCD SEG drive output (SEG1). |
| 23 | SEG2 | output | LCD SEG drive output (SEG2). |
| 24 | SEG3 | output | LCD SEG drive output (SEG3). |
| 25 | SEG4 | output | LCD SEG drive output (SEG4). |
| 26 | SEG5 | output | LCD SEG drive output (SEG5). |
| 27 | SEG6 | output | LCD SEG drive output (SEG6). |
| 28 | SEG7 | output | LCD SEG drive output (SEG7). |
| 29 | SEG8 | output | LCD SEG drive output (SEG8). |
| 30 | SEG9 | output | LCD SEG drive output (SEG9). |
| 31 | SEG10 | output | LCD SEG drive output (SEG10). |
| 32 | SEG11 | output | LCD SEG drive output (SEG11). |
| 33 | SEG12 | output | LCD SEG drive output (SEG12). |
| 34 | SEG13 | output | LCD SEG drive output (SEG13). |
| 35 | SEG14 | output | LCD SEG drive output (SEG14). |
| 36 | SEG15 | output | LCD SEG drive output (SEG15). |
| 37 | SEG16 | output | LCD SEG drive output (SEG16). |
| 38 | SEG17 | output | LCD SEG drive output (SEG17). |
| 39 | SEG18 | output | LCD SEG drive output (SEG18). |
| 40 | SEG19 | output | LCD SEG drive output (SEG19). |
| 41 | SEG20 | output | LCD SEG drive output (SEG20). |
| 42 | SEG21 | output | LCD SEG drive output (SEG21). |
| 43 | SEG22 | output | LCD SEG drive output (SEG22). |
| 44 | SEG23 | output | LCD SEG drive output (SEG23). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TM(Shenzhen Titan Micro Elec) |
| Package | LQFP-44(10x10) |
| Category | LED Drivers |
| Pins | 44 |
CAD (KiCad official)
- Symbol:
TM1622-LQFP44 - Footprint:
Package_QFP:LQFP-44_10x10mm_P0.8mm - 3D model: LQFP-44(10x10) (KiCad packages3D, STEP)
- 3D model files:
tm1622-lqfp44-etched.step/tm1622-lqfp44-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tm1622-lqfp44.step/tm1622-lqfp44.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TM(Shenzhen Titan Micro Elec) datasheet (16 pp, sha256
3b63e8d0106497df, retrieved 2026-10-27, 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(text+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).