component

TM1622

Public Made by Adom

by adom

TM Shenzhen Titan Micro Elec LCD Drivers, LQFP-52(14x14). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentled driverstm1622factory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Datasheet

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

TM1622

TM Shenzhen Titan Micro Elec · LCD Drivers · LQFP-52(14x14)

TM1622 from TM Shenzhen Titan Micro Elec, in a LQFP-52(14x14). 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, read/write of data or commands is invalid and the serial interface is reset, when low data and commands can be read/written.
2 RD input READ-mode clock input; on the falling edge display-memory data is put on DATA and can be latched by the host at the next rising edge.
3 WR input WRITE-mode clock input; data on DATA is written into the TM1622 on the rising edge of WR.
4 DATA bidirectional Serial data input/output.
5 VSS power_in System ground (GND).
6 OSCI input Input for an external 32 KHz clock source; must be left floating when the internal RC oscillator is used.
7 VDD power_in Chip power supply input, operating range 2.4 to 5.2 V.
8 VLCD input LCD bias voltage input; must be less than or equal to VDD.
9 IRQ output Time-base or watchdog timer overflow flag, NMOS open-drain output requiring a 10K pull-up when used.
10 T1 input Bias voltage input; use in normal operation is not recommended.
11 T2 input Bias voltage input; use in normal operation is not recommended.
12 T3 input Bias voltage input; use in normal operation is not recommended.
13 COM0 output LCD COM driver output.
14 COM1 output LCD COM driver output.
15 COM2 output LCD COM driver output.
16 COM3 output LCD COM driver output.
17 COM4 output LCD COM driver output.
18 COM5 output LCD COM driver output.
19 COM6 output LCD COM driver output.
20 COM7 output LCD COM driver output.
21 SEG0 output LCD SEG driver output.
22 SEG1 output LCD SEG driver output.
23 SEG2 output LCD SEG driver output.
24 SEG3 output LCD SEG driver output.
25 SEG4 output LCD SEG driver output.
26 SEG5 output LCD SEG driver output.
27 SEG6 output LCD SEG driver output.
28 SEG7 output LCD SEG driver output.
29 SEG8 output LCD SEG driver output.
30 SEG9 output LCD SEG driver output.
31 SEG10 output LCD SEG driver output.
32 SEG11 output LCD SEG driver output.
33 SEG12 output LCD SEG driver output.
34 SEG13 output LCD SEG driver output.
35 SEG14 output LCD SEG driver output.
36 SEG15 output LCD SEG driver output.
37 SEG16 output LCD SEG driver output.
38 SEG17 output LCD SEG driver output.
39 SEG18 output LCD SEG driver output.
40 SEG19 output LCD SEG driver output.
41 SEG20 output LCD SEG driver output.
42 SEG21 output LCD SEG driver output.
43 SEG22 output LCD SEG driver output.
44 SEG23 output LCD SEG driver output.
45 SEG24 output LCD SEG driver output.
46 SEG25 output LCD SEG driver output.
47 SEG26 output LCD SEG driver output.
48 SEG27 output LCD SEG driver output.
49 SEG28 output LCD SEG driver output.
50 SEG29 output LCD SEG driver output.
51 SEG30 output LCD SEG driver output.
52 SEG31 output LCD SEG driver output.

Key specifications

Parameter Value
Manufacturer TM Shenzhen Titan Micro Elec
Package LQFP-52(14x14)
Category LED Drivers
Pins 52

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage (recommended) VDD 2.7 5 5.2 V 4
Operating temperature range (recommended) Ta -20 85 ℃ 4
Operating junction temperature range (recommended) Tj -40 125 ℃ 4
Logic supply voltage (absolute maximum) VDD -0.5 7 V 4
Operating temperature range (absolute maximum) Topr -40 85 ℃ 4
Storage temperature range (absolute maximum) Tstg -55 150 ℃ 4
ESD human body model (HBM) ESD 2000 V 4
ESD machine model (MM) 200 V 4
Operating voltage VDD 2.4 5 5.2 V 5
Operating current (internal RC, unloaded) Idd 100 300 μA VDD=3.0V，片内 RC，空载 5
Operating current (internal RC, unloaded) Idd 150 500 μA VDD=5.0V，片内 RC，空载 5
Operating current (external clock, unloaded) Idd1 50 120 μA VDD=3.0V，外部时钟，空载 5
Operating current (external clock, unloaded) Idd1 120 240 μA VDD=5.0V，外部时钟，空载 5
Standby current (power-save mode, unloaded) IDD2 1 5 μA VDD=3.0V，省电模式，空载 5
Standby current (power-save mode, unloaded) IDD2 1.5 10 μA VDD=5.0V，省电模式，空载 5
Input low voltage Vil 0 0.6 V VDD=3.0V；DATA, WR, CS, RD 5
Input low voltage Vil 0 1 V VDD=5.0V；DATA, WR, CS, RD 5
Input high voltage Vih 1.2 3 V VDD=3.0V；DATA, WR, CS, RD 5
Input high voltage Vih 1.6 5 V VDD=5.0V；DATA, WR, CS, RD 5
DATA, BZ, BZ, IRQ sink current IOL1 2 4.5 mA VDD=3.0V，Vol=0.5V 5
DATA, BZ, BZ, IRQ sink current IOL1 1 3 mA VDD=5.0V，Vol=0.5V 5
DATA, BZ, BZ source current IOh1 -1 -2 mA VDD=3.0V，Voh=2.5V 5
DATA, BZ, BZ source current IOh1 -2 -3.5 mA VDD=5.0V，Voh=4.5V 5
SEG sink current Isegl 280 400 500 μA VDD=3.0V，Vseg=0.5V 5
SEG sink current Isegl 300 430 550 μA VDD=5.0V，Vseg=0.5V 5
SEG source current Isegh -110 -160 -210 μA VDD=3.0V，Vseg=2.5V 5
SEG source current Isegh -130 -180 -230 μA VDD=5.0V，Vseg=4.5V 5
COM sink current Icoml 410 460 510 μA VDD=3.0V，Vseg=0.5V 5
COM source current Icomh -120 -170 -220 μA VDD=3.0V，Vseg=2.5V 5
COM source current Icomh -140 -190 -240 μA VDD=5.0V，Vseg=4.5V 5
System clock (internal RC) Fsys1 24 32 40 KHz VDD=3.0V，片内 RC 4
LCD driver scan frequency (internal RC) Flcd 24 32 40 Hz VDD=3.0V，片内 RC 4
WR clock frequency Fclk1 4 300 KHz VDD=5.0V，50%占空比 4
WR clock frequency Fclk1 4 150 KHz VDD=3.0V，50%占空比 4
RD clock frequency Fclk2 1 75 KHz VDD=5.0V，50%占空比 4
RD clock frequency Fclk2 1 150 KHz VDD=3.0V，50%占空比 4
CS high width Tcsh 500 600 ns 4
WR, RD input level duration (write mode) Tclk 3.5 125 μs VDD=5.0V，写模式 4
WR, RD input level duration (write mode) Tclk 1.7 125 μs VDD=3.0V，写模式 4
WR, RD input level duration (read mode) Tclk 6.7 μs VDD=5.0V，读模式 4
WR, RD input level duration (read mode) Tclk 3.4 μs VDD=3.0V，读模式 4
Tone output frequency (TONE 2K, internal RC) Ftone 1.5 2 2.5 KHz TONE 2K，片内 RC 4
Tone output frequency (TONE 4K, internal RC) Ftone 3 4 5 KHz TONE 4K，片内 RC 4
External clock frequency Ext_CLOCK 32 KHz 4
System clock (external clock) Fsys1 32 KHz VDD=3.0/5.0V，外部时钟 4
LCD driver scan frequency (external clock) Flcd 32 Hz VDD=3.0/5.0V，外部时钟 4

CAD (KiCad official)

  • Symbol: TM1622
  • Footprint: Package_QFP:LQFP-52_14x14mm_P1mm
  • 3D model: LQFP-52(14x14) (KiCad packages3D, STEP)
  • 3D model files: tm1622-etched.step / tm1622-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tm1622.step / tm1622.glb are 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 cfc72789a0c2b536, retrieved 2026-10-19, 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 (text+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