Diodes Incorporated PI6C49X0206TLIEX

Overview

PI6C49X0206TLIEX from Diodes Incorporated is a low-skew, 1-to-6 LVCMOS/LVTTL fanout buffer with single-ended clock input, six configurable outputs (Q0–Q5), output enable control (OE), and guaranteed part-to-part skew ≤800 ps. It operates across 1.5V–3.3V VDDO supply rails, supports up to 250 MHz output frequency, and is rated for –40°C to +85°C ambient temperature. Used in high-reliability clock distribution for FPGA I/O banks and multi-core processor timing subsystems.

For engineers reviewing the PI6C49X0206TLIEX datasheet, PI6C49X0206TLIEX pinout, PI6C49X0206TLIEX application, or PI6C49X0206TLIEX equivalent, key selection criteria include output skew budget (≤100 ps typical output skew), dual-supply flexibility (independent VDD core and VDDO output rails), OE-controlled output disable time (≤14 ns), and TSSOP-14 package compatibility with industrial PCB layouts.

Technical Context

The device implements a single-input, six-output fanout architecture with internal pulldown resistors (51 kΩ) on CLK and OE inputs, enabling robust noise immunity without external biasing. All outputs are LVCMOS/LVTTL compatible and independently powered via VDDO pins, allowing mixed-voltage domain interfacing (e.g., 1.8V core with 2.5V I/O).

Propagation delay varies by VDDO: 1.6 ns (typ.) at 3.3V, 1.9 ns (typ.) at 2.5V, and 3.25 ns (typ.) at 1.5V; additive RMS jitter is as low as 0.03 ps at 156.25 MHz (12 kHz–20 MHz integration bandwidth), confirming suitability for jitter-sensitive SerDes clock trees.

Key Specifications

Pinout & Package

Package: 14-pin, 173-mil wide TSSOP (L), RoHS-compliant, halogen- and antimony-free "Green" construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICS85306AG-01LF and PI6C20400WEX, the PI6C49X0206TLIEX uniquely delivers 6-output fanout with per-rail VDDO independence, 250 MHz capability, and OE control-making it optimal for complex, multi-voltage, and power-gated clock trees.

Availability

PI6C49X0206TLIEX is available at Aetrix Electronics and suitable for server motherboard clock distribution, FPGA I/O bank timing, industrial PLC backplane sync, and automotive ADAS domain controller applications requiring stable component supply across extended temperature and multi-voltage operating conditions.

Supply support for PI6C49X0206TLIEX 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 automotive markets.

The PI6C49X series targets high-fidelity clock distribution in systems demanding ultra-low skew, multi-voltage interoperability, and industrial-grade reliability-designed specifically for FPGA, ASIC, and processor-based platforms with stringent timing budgets.

FAQ

What is the minimum VDDO voltage supported for guaranteed 250 MHz operation?

The PI6C49X0206TLIEX maintains 250 MHz maximum output frequency down to 1.5V VDDO, as verified in AC Characteristics tables across all voltage grades (1.5V, 1.8V, 2.5V, 3.3V) with 5 pF load and –40°C to +85°C ambient. Propagation delay increases to 4.3 ns (typ.) at 1.5V, but timing margins remain intact per datasheet limits.

How does the OE pin behave during power-up sequencing?

The OE pin has an internal 51 kΩ pulldown resistor, ensuring it defaults to logic low at power-up. This forces all six outputs (Q0–Q5) into high-impedance state until OE is actively driven high, preventing bus contention or unintended clock injection during system initialization.

Can VDD and VDDO be powered from different supplies simultaneously?

Yes. VDD (pin 5) powers core logic and inputs, while VDDO (pins 8 and 12) powers all outputs. They may be independently set to 1.8V/2.5V, 2.5V/3.3V, or other valid combinations per Table 3. This separation enables mixed-signal partitioning and reduces cross-domain noise coupling.

Is the PI6C49X0206TLIEX qualified for automotive applications?

The base PI6C49X0206T is not AEC-Q100 qualified, but Diodes Incorporated offers automotive-grade variants (e.g., PI6C49X0206TQIEX) manufactured in IATF 16949-certified facilities with PPAP support. Customers requiring automotive qualification should contact Diodes or Aetrix for the Q-grade part number and change-control documentation.