PI6CV304LEX

Clock Buffers, Drivers Overview

The PI6CV304LEX is a low-skew, low-noise, high-speed clock buffer manufactured by Diodes Incorporated. It operates with a single 3.3V power supply and supports input frequencies up to 160MHz. The device features one 5V-tolerant clock input and four LVCMOS outputs with an output impedance of 20Ω. Key electrical parameters include a maximum propagation delay of 3ns, typical rise/fall times of 1.2ns, and maximum output skew of 150ps. It is housed in an 8-pin TSSOP package and functions within an industrial temperature range of –40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Supports 160MHz operation with 5V I/O tolerant input
• Low noise and low skew: 150ps maximum output skew
• Fast propagation delay (typical 2.0ns) and fast rise/fall time (typical 1.0ns)
• Outputs can be disabled to 3-state via the OE pin to reduce EMI and power consumption

Clock Buffers, Drivers Applications

• PCI(X) clock buffers in servers and workstations
• PCI(X) Storage Area Network (SAN) and RAID controllers
• Networking applications requiring 80MHz for 10/100Mbps Ethernet
• Gigabit networking clocks at 125MHz
• Optical OC3/SDH/SONET at 155MHz

Clock Buffers, Drivers Procurement Notes

Verify that the component is the PI6CV304LEX variant, which utilizes the L package code for the 8-pin wide TSSOP housing. Confirm RoHS compliance and lead-free status as specified in the datasheet notes. Check for the 'Not Recommended for New Design' designation and evaluate if the recommended replacement, PI6CV304B, better suits current engineering requirements.

Clock Buffers, Drivers Selection Notes

Select the PI6CV304LEX when a 20Ω output impedance is required, distinguishing it from the PI6CV2304 which has a 30Ω impedance. Ensure the design accommodates the 3.3V supply voltage and the specific timing constraints of 160MHz maximum frequency. Verify that the 8-pin TSSOP footprint aligns with the PCB layout specifications.

Clock Buffers, Drivers Part Context

This part belongs to the PI6CV304/PI6CV2304 product line documented under DS43037 Rev 2-3. The 'L' suffix indicates the 8-pin, 173-mil wide TSSOP package, while the 'E' suffix denotes Pb-free and Green packaging compliant with EU RoHS directives. The 'X' suffix specifies tape and reel packaging.

Clock Buffers, Drivers Replacement Considerations

The datasheet explicitly states the PI6CV304 is not recommended for new designs and recommends using the PI6CV304B instead. Engineers should verify functional compatibility and package availability before substituting this obsolete part number.