Diodes Incorporated PI6C49CB02JWEX

Overview

PI6C49CB02JWEX from Diodes Incorporated is an industrial-grade, low-skew 1-to-2 LVCMOS/LVTTL fanout buffer with single-ended clock input and two matched LVCMOS/LVTTL outputs. It operates at 2.5V or 3.3V, supports up to 250MHz output frequency, exhibits 25ps typical output skew, and is qualified for –40°C to +105°C ambient operation in clock distribution for FPGA and microcontroller timing systems.

For engineers reviewing the PI6C49CB02JWEX datasheet, PI6C49CB02JWEX pinout, PI6C49CB02JWEX application, or PI6C49CB02JWEX equivalent, key selection criteria include guaranteed output skew ≤80ps, dual supply rail support (VDD/VDDO), industrial temperature range compliance, and SOIC-W package compatibility with high-density PCB layouts.

Technical Context

The device implements a single-input, dual-output fanout architecture with independent core (VDD) and output (VDDO) supply domains, enabling level-shifting between 2.5V and 3.3V logic domains. Input accepts LVCMOS/LVTTL levels with internal 51kΩ pull-down, while outputs drive 50Ω loads with 100–400ps rise/fall times and 47–53% duty cycle stability up to 250MHz.

AC performance is characterized across both supply modes: propagation delay is 1.4–3.0ns, part-to-part skew remains ≤800ps, and additive RMS jitter is as low as 0.07ps at 125MHz. All timing parameters are specified over full industrial temperature range (–40°C to +105°C) and validated under loaded conditions per AC test circuit.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICS8302AMLF and PI6C20400LEX, PI6C49CB02JWEX uniquely combines dual-supply operation, industrial temperature range, and sub-80ps skew in an 8-pin SOIC - making it optimal for space-constrained, mixed-voltage industrial timing systems where deterministic skew matters more than raw bandwidth.

Availability

PI6C49CB02JWEX is available at Aetrix Electronics and suitable for industrial PLC timing distribution, FPGA configuration clock fanout, and automotive ADAS sensor hub synchronization requiring stable component supply and long-term lifecycle assurance.

Supply support for PI6C49CB02JWEX 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 PI6C49CB02JWEX belongs to Diodes' Pericom® clock buffer product line, engineered specifically for low-skew, multi-rail clock distribution in harsh-environment industrial and automotive applications.

FAQ

What supply voltage configurations does the PI6C49CB02JWEX support?

The device supports independent 2.5V or 3.3V operation on both VDD (core supply) and VDDO (output supply) pins. This allows mixed-voltage configurations - for example, 3.3V core logic with 2.5V output drivers - without external level shifters. Both rails must be within ±5% tolerance, and each requires local 0.1μF ceramic decoupling.

Can the PI6C49CB02JWEX drive 50Ω transmission lines directly?

Yes - the outputs are designed to drive 50Ω loads with controlled edge rates (100–400ps). Measured rise/fall times and output impedance (5–12Ω) ensure clean signal integrity on properly terminated lines. For best results, use series termination near the driver and maintain short trace lengths to minimize reflections.

Is the CLK input internally biased, and what is its DC loading?

The CLK input features an internal 51kΩ pull-down resistor, eliminating the need for external biasing in most applications. Input capacitance is 4pF, and input leakage current is ≤±100μA across temperature and voltage ranges. This ensures robust noise immunity and minimal loading on upstream clock sources like crystal oscillators or PLL outputs.

How is part-to-part skew managed across temperature and voltage variations?

Part-to-part skew is guaranteed ≤800ps over –40°C to +105°C and across 2.5V/3.3V supply ranges. This specification is validated using statistical process control during wafer sort and final test, with worst-case corner screening. The design uses matched transistor pairs and symmetrical routing to minimize inter-die variation in propagation delay.