TM1652 from TM Shenzhen Titan Micro Elec, in a SOIC-16. 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	VDD	power_in	Positive supply voltage. Typical VDD = 5V; recommended range 3V to 6V (absolute max +7.0V). A 0.1uF (104) decoupling capacitor to GND is required close to the pin.
2	SG1	output	Segment driver output 1. Integrated PMOS high-side driver sourcing LED current with 8-step programmable segment drive current (typ. 25mA at VDS=3V, 30mA at VDS=2V at 8/8 setting).
3	SG2	output	Segment driver output 2. Integrated PMOS high-side driver, 8-step programmable source current for common-cathode LED segments.
4	SG3	output	Segment driver output 3. Integrated PMOS high-side driver, 8-step programmable source current for common-cathode LED segments.
5	SG4	output	Segment driver output 4. Integrated PMOS high-side driver, 8-step programmable source current for common-cathode LED segments.
6	SG5	output	Segment driver output 5. Integrated PMOS high-side driver, 8-step programmable source current for common-cathode LED segments.
7	SG6	output	Segment driver output 6. Integrated PMOS high-side driver, 8-step programmable source current for common-cathode LED segments.
8	SG7	output	Segment driver output 7. Integrated PMOS high-side driver, 8-step programmable source current for common-cathode LED segments.
9	SG8/GR6	output	Muxed segment/grid output. Acts as SG8 in the 8-seg x 5-digit mode or as GR6 in the 7-seg x 6-digit mode; role is chosen by the display-mode configuration command over the SDA interface. Do NOT connect to both a segment and a common on the same digit array or the display will misbehave.
10	GND	power_in	Ground / power return, 0V reference for VDD and all signals.
11	GR5	output	Grid (digit-common) driver output 5. Integrated NMOS low-side driver sinking LED current with 16-step programmable duty cycle (typ. 140mA sink at VDS=0.3V, absolute max 170mA at 0.3V).
12	GR4	output	Grid (digit-common) driver output 4. Integrated NMOS low-side sink driver with 16-step programmable duty cycle for common-cathode digit selection.
13	GR3	output	Grid (digit-common) driver output 3. Integrated NMOS low-side sink driver with 16-step programmable duty cycle for common-cathode digit selection.
14	GR2	output	Grid (digit-common) driver output 2. Integrated NMOS low-side sink driver with 16-step programmable duty cycle for common-cathode digit selection.
15	GR1	output	Grid (digit-common) driver output 1. Integrated NMOS low-side sink driver with 16-step programmable duty cycle for common-cathode digit selection.
16	SDA	input	Serial data input. UART-compatible single-wire receive line at 19200bps (bit width 47-57us); accepts commands and display data from an MCU TX pin. VIH >= 0.7VDD, VIL <= 0.3VDD; input current +/-1uA. Compatible with 3.3V or 5V MCU drive.

Key specifications

Parameter	Value
Manufacturer	TM Shenzhen Titan Micro Elec
Package	SOIC-16
Category	LED-drv
Pins	16

CAD (KiCad official)

Symbol: TM1652
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOIC-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tm1652.step`	217 KB	You want the bare part, or you mark your own boards.
`tm1652-etched.step`	1.8 MB	You want the part with `TM1652` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 454 faces against 267 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: TM Shenzhen Titan Micro Elec datasheet (9 pp, sha256 d64fdafbac56dcb5, retrieved 2026-08-17, tier: lcsc)
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