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LMKDB12xx LP-HCSL Clock Multiplexers

Texas Instruments LMKDB12xx LP-HCSL Clock Multiplexers are extremely low-jitter clock muxes for PCIe clocking applications from PCIe Gen 1 to PCIe Gen 7. The series includes the LMKDB1202, LMKDB1204, and LMKDB1208 devices and supports common clock and independent-reference PCIe architectures, with input clocks that use or do not use spread-spectrum clocking.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Number of Outputs	Max Output Freq	Output Type	Package / Case	Input Type	Maximum Input Frequency	Supply Voltage - Min	Supply Voltage - Max	Series	Minimum Operating Temperature	Maximum Operating Temperature
	Clock Buffer 2-input 2-output LP- HCSL clock MUX for LMKDB1202REYT Texas Instruments 1: $4.36 577In Stock 1,500Expected 9/29/2026	Mfr. Part # LMKDB1202REYT Mouser Part # 595-LMKDB1202REYT	Texas Instruments	Clock Buffer 2-input 2-output LP- HCSL clock MUX for Learn More about Texas Instruments ti lmkdb12xx lp hcsl clock multiplexers	Datasheet	577In Stock 1,500Expected 9/29/2026	Cut Tape $4.36 $3.29 $3.03 $2.74 Reel $2.59 View $2.48 $2.40 $2.36 MouseReel Available	Min.: 1 Mult.: 1 : 250			2 Output	400 MHz	LP-HCSL	VQFN-20	LP-HCSL	400 MHz	1.71 V	3.6 V	LMKDB1202	- 40 C	+ 105 C
	Clock Buffer 2-input 4-output LP- HCSL clock MUX for LMKDB1204REXT Texas Instruments 1: $5.56 227In Stock 3,000Expected 10/6/2026	Mfr. Part # LMKDB1204REXT Mouser Part # 595-LMKDB1204REXT	Texas Instruments	Clock Buffer 2-input 4-output LP- HCSL clock MUX for Learn More about Texas Instruments ti lmkdb12xx lp hcsl clock multiplexers	Datasheet	227In Stock 3,000Expected 10/6/2026	Cut Tape $5.56 $4.24 $3.91 $3.55 Reel $3.37 View $3.24 $3.18 $3.14 MouseReel Available	Min.: 1 Mult.: 1 : 250			4 Output		LP-HCSL	VQFN-28	Differential	400 MHz	1.71 V	3.6 V	LMKDB1204	- 40 C	+ 105 C
	Clock Buffer 2-input 4-output LP- HCSL clock MUX for LMKDB1204REXR Texas Instruments 1: $4.92 6,000On Order	Mfr. Part # LMKDB1204REXR Mouser Part # 595-LMKDB1204REXR	Texas Instruments	Clock Buffer 2-input 4-output LP- HCSL clock MUX for Learn More about Texas Instruments ti lmkdb12xx lp hcsl clock multiplexers	Datasheet	6,000On Order On Order Ship Dates Mfr. #: LMKDB1204REXR Stock: 0 On Order: 3,000 Expected 1/15/2027 3,000 Expected 2/8/2027 Factory Lead-Time: 16 Weeks	$4.92 $3.74 $3.44 $3.12 View $2.96 $2.91 $2.62	Min.: 1 Mult.: 1			4 Output		LP-HCSL	VQFN-28	Differential	400 MHz	1.71 V	3.6 V	LMKDB1204	- 40 C	+ 105 C
	Clock Buffer 2-input 2-output LP- HCSL clock MUX for LMKDB1202REYR Texas Instruments 1: $3.85 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # LMKDB1202REYR Mouser Part # 595-LMKDB1202REYR	Texas Instruments	Clock Buffer 2-input 2-output LP- HCSL clock MUX for Learn More about Texas Instruments ti lmkdb12xx lp hcsl clock multiplexers	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape $3.85 $2.88 $2.64 $2.38 Reel $2.02 View $2.25 $2.19 $2.13 $2.00 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			2 Output	400 MHz	LP-HCSL	VQFN-20	LP-HCSL	400 MHz	1.71 V	3.6 V	LMKDB1202	- 40 C	+ 105 C
	Clock Buffer 2-input 8-output LP- HCSL clock multiplex LMKDB1208RSLR Texas Instruments 1: $6.07 Non-Stocked Lead-Time 16 Weeks New Product	Mfr. Part # LMKDB1208RSLR Mouser Part # 595-LMKDB1208RSLR New Product	Texas Instruments	Clock Buffer 2-input 8-output LP- HCSL clock multiplex Learn More about Texas Instruments ti lmkdb12xx lp hcsl clock multiplexers	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape $6.07 $4.63 $4.26 $3.87 $3.79 Reel $3.22 MouseReel Available	Min.: 1 Mult.: 1 : 2,500			8 Output		LP-HCSL	VQFN-48	Differential	400 MHz	1.71 V	1.89 V	LMKDB1208	- 40 C	+ 105 C
	Clock Buffer 2-input 8-output LP- HCSL clock multiplex LMKDB1208RSLT Texas Instruments 1: $7.13 Non-Stocked Lead-Time 16 Weeks New Product	Mfr. Part # LMKDB1208RSLT Mouser Part # 595-LMKDB1208RSLT New Product	Texas Instruments	Clock Buffer 2-input 8-output LP- HCSL clock multiplex Learn More about Texas Instruments ti lmkdb12xx lp hcsl clock multiplexers	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape $7.13 $5.47 $5.05 $4.89 Reel $4.15 $4.13 MouseReel Available	Min.: 1 Mult.: 1 : 250			8 Output		LP-HCSL	VQFN-48	Differential	400 MHz	1.71 V	1.89 V	LMKDB1208	- 40 C	+ 105 C