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LMK00105SQE

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by adom

Texas Instruments Clock Buffers, Drivers, Distributors, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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LMK00105SQE

Texas Instruments · Clock Buffers, Drivers, Distributors · WQFN-24-EP(4x4)

LMK00105SQE from Texas Instruments, in a WQFN-24-EP(4x4). 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 GND power_in Ground pin.
2 Vddo power_in Power supply for Bank A (CLKout0 and CLKout1) clock output pins.
3 CLKout0 output LVCMOS clock output, supplied from the Bank A Vddo.
4 GND power_in Ground pin.
5 CLKout1 output LVCMOS clock output, supplied from the Bank A Vddo.
6 Vddo power_in Power supply for Bank A (CLKout0 and CLKout1) clock output pins.
7 GND power_in Ground pin.
8 Vdd power_in Power supply for the operating core and input buffer.
9 OSCin input Crystal input; accepts a crystal for the internal oscillator.
10 OSCout output Crystal output for the internal oscillator.
11 GND power_in Ground pin.
12 GND power_in Ground pin.
13 CLKout2 output LVCMOS clock output, supplied from the Bank B Vddo.
14 Vddo power_in Power supply for Bank B (CLKout2 to CLKout4) clock output pins.
15 CLKout3 output LVCMOS clock output, supplied from the Bank B Vddo.
16 GND power_in Ground pin.
17 CLKout4 output LVCMOS clock output, supplied from the Bank B Vddo.
18 Vddo power_in Power supply for Bank B (CLKout2 to CLKout4) clock output pins.
19 GND power_in Ground pin.
20 CLKin* input Complementary clock input, paired with CLKin for differential input operation.
21 CLKin input Clock input pin.
22 SEL input Input clock selection; has an internal pulldown resistor.
23 Vdd power_in Power supply for the operating core and input buffer.
24 OE input Output enable; has an internal pulldown resistor (CMOS control input).
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package WQFN-24-EP(4x4)
Category Clock/Timing
Pins 25

CAD (KiCad official)

  • Symbol: LMK00105SQE
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm
  • 3D model: WQFN-24-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: lmk00105sqe-etched.step / lmk00105sqe-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lmk00105sqe.step / lmk00105sqe.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (31 pp, sha256 3afaf41a6e9bd99d, retrieved 2026-10-07, 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-haiku-5-5 (text), consensus claude-sonnet-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