Diodes Incorporated PI6C49X0204CWIE

Overview

PI6C49X0204CWIE from Diodes Incorporated is a low-skew, single-input-to-four-output LVCMOS clock buffer operating from 1.5V to 3.3V supply, delivering ≤±250 ps output-to-output skew, 200 MHz max output frequency, and 0.05 ps additive jitter at 156.25 MHz - used in FPGA clock distribution, industrial PLC timing, and high-speed serial interface reference fanout.

For engineers reviewing the PI6C49X0204CWIE datasheet, PI6C49X0204CWIE pinout, PI6C49X0204CWIE application, or PI6C49X0204CWIE equivalent, key selection criteria include supply voltage flexibility (1.5–3.3 V), 3.6 V-tolerant CLK input, OE-controlled tri-state outputs, and SOIC-W package compatibility with industrial temperature range (−40°C to +85°C).

Technical Context

This device implements a fully static CMOS clock fanout architecture with rail-to-rail input switching threshold (VDD/2), internal 51 kΩ pull-down on CLK and 125 kΩ pull-up on OE, enabling robust noise immunity without external biasing. It supports simultaneous four-output buffering with matched trace-length routing requirements.

Propagation delay ranges from 0.8 ns (at 3.3 V) to 2.5 ns (at 1.5 V), while output rise/fall times are tightly controlled at 1.0–1.5 ns across all supply voltages - ensuring signal integrity for DDR memory clocks, PCIe REFCLK distribution, and microcontroller peripheral timing.

Key Specifications

Pinout & Package

Package: 8-pin SOIC (W), 150 mil width, RoHS-compliant, lead-free, green (halogen- and antimony-free).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar clock fanout applications.

Compared with IDT 5PB1102PGI and ON Semi NB3N511MNR2G, PI6C49X0204CWIE uniquely supports 1.5–3.3 V operation, 3.6 V-tolerant input, and active OE control - making it the only option for scalable, voltage-agile, and dynamically gated clock distribution in modern embedded systems.

Availability

PI6C49X0204CWIE is available at Aetrix Electronics and suitable for FPGA clock distribution, industrial PLC timing, and PCIe REFCLK fanout requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for PI6C49X0204CWIE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-performance analog, logic, and timing solutions for industrial, computing, and communications markets.

The PI6C49X0204CWIE belongs to Diodes' Pericom® clock buffer product line, engineered specifically for low-jitter, low-skew clock distribution in space-constrained, mixed-voltage embedded systems.

FAQ

What is the maximum supported clock frequency for PI6C49X0204CWIE?

The device supports up to 200 MHz output frequency across all valid supply voltages (1.5 V to 3.3 V), verified under industrial temperature conditions (−40°C to +85°C) with matched 50 Ω loads and proper decoupling. Performance is guaranteed per AC electrical characteristics in DS43291 Rev 1-2.

Does PI6C49X0204CWIE require external pull-up or pull-down resistors on CLK or OE pins?

No external biasing is required: CLK has an internal 51 kΩ pulldown and OE has an internal 125 kΩ pull-up. However, Diodes recommends adding external 4.7 kΩ pull-up and 1 kΩ pulldown for enhanced noise immunity in high-noise industrial environments - per Application Information section of DS43291.

Can PI6C49X0204CWIE operate with a 1.5 V supply while accepting a 3.3 V input clock?

Yes - the CLK input is explicitly rated for 3.6 V tolerance regardless of VDD, enabling direct connection to 3.3 V oscillators while the IC operates from a 1.5 V rail. This is confirmed in both Maximum Ratings and DC Electrical Characteristics tables of DS43291.

What decoupling capacitor value is recommended for PI6C49X0204CWIE's VDD pin?

A minimum 0.1 µF ceramic capacitor is required between VDD (pin 7) and GND (pin 6), placed as close as possible to the device. For improved high-frequency noise suppression, Diodes recommends using 1 µF in parallel - as specified in the "Power Decoupling & Routing" section of DS43291.