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Texas Instruments LMK00105SQ/NOPB — Clock & Timing ICs
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RoHS Compliant · Lead-Free EIA-481 Standard
Texas Instruments / Clock & Timing ICs

LMK00105SQ/NOPB Clock Buffer 2:5 200MHz 24WQFN - Texas

MPN LMK00105SQ/NOPB
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Texas Instruments LMK00105SQ/NOPB, Fanout Buffer (Distribution), Multiplexer, Translator, 2:5 ratio, 200 MHz max, LVCMOS output, 2.375V ~ 3.45V supply, -40°C ~ 85°C, 24-WFQFN Exposed Pad, Active

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100% Original Sealed 45x Microscope QC 30-Day Warranty · COC USD T/T & PI · DAP/DDP
[SPEC] Essential Parameters Snapshot Full Specifications (12)
Package / Case 24-WFQFN Exposed Pad
Supply Voltage 2.375V ~ 3.45V

Full Technical Specifications

12 Parameters
LMK00105SQ/NOPB specifications
Parameter / AttributeSpecification / Value
TypeFanout Buffer (Distribution), Multiplexer, Translator
MountingSurface Mount
Supply voltage2.375V ~ 3.45V
Frequency - max200 MHz
Operating temperature-40°C~85°C
InputHCSL, LVCMOS, LVDS, LVPECL, LVTTL, SSTL, Crystal
OutputLVCMOS
PackageTape & Reel (TR); Cut Tape (CT)
Case24-WFQFN Exposed Pad
Number of circuits1
Ratio - Input:Output2:5
Differential - Input:OutputYes/No
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Technical Details & Description

200 MHz fanout buffer with multi-protocol input

The LMK00105SQ/NOPB is a 2:5 fanout buffer, multiplexer, and level translator from Texas Instruments, accepting HCSL, LVCMOS, LVDS, LVPECL, LVTTL, SSTL, or crystal inputs and delivering LVCMOS outputs up to 200 MHz. The 2.375V to 3.45V supply range lets it run off a 2.5V or 3.3V rail without a separate regulator, simplifying the power tree.

The base product number LMK00105 covers the family; the /NOPB suffix indicates lead-free / RoHS-compliant finish.

Frequently asked questions

Is LMK00105SQ/NOPB compatible with LVDS input?

Yes, the input stage accepts LVDS alongside HCSL, LVCMOS, LVPECL, LVTTL, SSTL, and crystal signals.

What is the maximum input frequency of LMK00105SQ/NOPB?

The maximum output frequency is 200 MHz. Input frequency depends on the protocol; the buffer's bandwidth supports the full 200 MHz range across all listed input types.

Does LMK00105SQ/NOPB have a direct replacement or alternative?

The CDCLVP1204RGTR is a functional peer from TI with a 2:4 fanout ratio and LVPECL outputs, but it lacks the LVCMOS output and crystal input of the LMK00105SQ/NOPB. Verify output type and fanout count before substituting.

LMK00105SQ/NOPB
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