Mfr Part #:

LMK00338RTAT

The Texas Instruments LMK00338RTAT is an 8-output PCIe Gen1 to Gen7 clock buffer and level translator. It operates with a 3.3V core supply and offers HCSL and LVCMOS output types.

✓ Total Stock: 150 pcs

$ Price Range: $2.24

LMK00338RTAT Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
PROSOFT ELECTRONICS ✓ Non-Authorised Inventory information	150 pcs On Request	150 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

LMK00338RTAT Description

Short technical summary and product information.

The LMK00338RTAT from Texas Instruments is an 8-output fanout buffer designed for high-frequency, low-jitter clock and data distribution. It supports PCIe Gen1 through Gen7 standards, making it suitable for advanced computing and communication systems.

This device features a 3.3V core supply voltage and independent 2.5V or 3.3V output supplies. It offers versatile input compatibility, accepting CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, LVTTL, SSTL, and crystal inputs. The outputs are configurable as HCSL or Hi-Z per bank, with an additional LVCMOS output featuring a synchronous enable for runt-pulse-free operation.

With an operating temperature range of -40°C to 85°C, the LMK00338RTAT is built for industrial applications. It is packaged in a 40-lead WQFN (6x6 mm) and is surface-mounted. Key specifications include an additive RMS jitter of 15 fs (typical) for PCIe Gen5 at 100 MHz and an output skew of 50 ps.

The LMK00338RTAT is ideal for replacing fixed-output buffer devices, enhancing timing margins, and providing flexible clock distribution in systems requiring high performance and low jitter.

LMK00338RTAT Quick Information

Product Type: Clock Buffer

Canonical Name: LMK00338 8-Output PCIe Gen1/Gen2/Gen3/Gen4/Gen5 Clock Buffer and Level Translator

Subcategory: Application Specific ClockTiming

LMK00338RTAT Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

LMK00338RTAT Estimated Pricing

Qty	Low	High
1+	$2.24	$2.24

Estimated market price range - modelled values for guidance only, not live distributor offers.

LMK00338RTAT Features

8-output PCIe Gen1 to Gen7 clock buffer.
Supports multiple input clock types.
Selectable HCSL or Hi-Z outputs.
Low additive RMS jitter of 15 fs.
Industrial temperature range: -40°C to 85°C.

LMK00338RTAT Applications

Ideal for PCIe clock distribution.
Suitable for SATA clocking.
Used in high-speed data systems.
Provides low-jitter clock translation.
Enhances system timing margins.

LMK00338RTAT FAQs

6 frequently asked questions generated from this part’s specifications.

What is the operating temperature range for the LMK00338RTAT?

The operating temperature range is -40°C to 85°C.

What package type is the LMK00338RTAT available in?

The LMK00338RTAT is available in a 40-lead WQFN (6x6 mm) package.

What are the output types supported by the LMK00338RTAT?

The LMK00338RTAT supports HCSL and LVCMOS output types.

What is the core supply voltage for the LMK00338RTAT?

The core supply voltage is 3.3V.

How many outputs does the LMK00338RTAT have?

The LMK00338RTAT has 8 outputs.

What is the typical additive RMS jitter for PCIe Gen5 at 100 MHz?

The typical additive RMS jitter for PCIe Gen5 at 100 MHz is 15 fs.

Category	Application Specific ClockTiming
Manufacturer Name	Texas Instruments
AEC Qualified	No
Automotive Grade	No
Differential	Yes
Frequency	10 MHz to 40 MHz
Industrial Grade	No
Input	CML, HCSL, HSTL, LVDS, LVPECL, SSTL, Crystal
Input Type	LVPECL, LVDS, CML, SSTL, HSTL, HCSL, Single-Ended
Main Purpose	PCI Express (PCIe), SATA CPU
Medical Grade	No
Military Grade	No
Mounting Type	Surface Mount
Number of Circuits	1
Number of Outputs	8
Operating Temperature	-40°C to +85°C
Output	HCSL, LVCMOS
Output Type	HCSL, Hi-Z
PLL	No
Ratio	3:9
Supplier Device Package	40-WQFN (6x6)
Supplier Package	40-WQFN (6x6)
Voltage	3.15V ~ 3.45V