Diodes Incorporated PI6C22405-1HWIE

Overview

PI6C22405-1HWIE from Pericom Semiconductor is a zero-delay clock buffer IC with internal PLL, distributing one reference input to five synchronized CMOS clock outputs. It operates from 2.5V ±5% or 3.3V ±10%, delivers <100ps output-to-output skew and <100ps cycle-to-cycle jitter at up to 220 MHz, and is qualified for industrial temperature range (–40°C to +85°C) in Pb-free 8-pin SOIC package.

For engineers reviewing the PI6C22405-1HWIE datasheet, PI6C22405-1HWIE pinout, PI6C22405-1HWIE application, or PI6C22405-1HWIE equivalent, key selection criteria include input-to-output delay cancellation, output skew tolerance, supply voltage flexibility, thermal resistance (θJA = 157°C/W), and industrial-grade reliability in clock distribution networks.

Technical Context

The device implements a proprietary internal PLL with CLKOUT serving as the dedicated feedback path, enabling true zero input-to-output propagation delay under matched loading conditions. Its architecture supports both standard and high-drive output modes, with duty cycle maintained between 45%–55% across 10–220 MHz.

AC performance is specified at 15pF and 30pF loads, with cycle-to-cycle jitter ranging from 40ps (2.5V, high drive, 15pF) to 130ps (2.5V, standard drive, 30pF). PLL lock time is guaranteed ≤1.0 ms with stable supply and valid REF input.

Key Specifications

Pinout & Package

8-pin SOIC (W8), Pb-free & Green, body size 4.80 × 6.20 mm, 1.27 mm pitch, JEDEC MS-012D/AA compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar zero-delay clock buffer applications.

Compared with ICS853S05I-01LFT and PI6C10805-1HWE, the PI6C22405-1HWIE uniquely delivers integrated PLL-based zero-delay operation across industrial temperatures-enabling single-chip timing solutions where phase alignment, thermal robustness, and jitter-critical synchronization are required.

Availability

PI6C22405-1HWIE is available at Aetrix Electronics and suitable for network switch timing, PCIe Gen2 root complex clocking, and industrial PLC backplane applications requiring stable component supply and long-term lifecycle support.

Supply support for PI6C22405-1HWIE 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

Pericom Semiconductor (acquired by Diodes Incorporated in 2016) specialized in high-performance timing, interface, and signal-integrity solutions for communications and computing infrastructure.

The PI6C22405 series belongs to Pericom's zero-delay clock buffer product line, engineered specifically for jitter-sensitive, multi-clock-domain systems in enterprise networking and industrial automation.

FAQ

What is the purpose of the CLKOUT pin on the PI6C22405-1HWIE?

The CLKOUT pin provides the internal feedback path to the PLL and is essential for achieving zero input-to-output delay. Its loading directly controls the phase relationship between REF and the other outputs; adjusting CLKOUT termination allows fine-tuning of input-to-output propagation delay without modifying external circuitry.

Can the PI6C22405-1HWIE operate with mixed 2.5V and 3.3V supplies?

No-the device uses a single VDD pin and must be powered from either 2.5V ±5% or 3.3V ±10%, not both simultaneously. Output voltage levels track VDD, so all driven devices must be compatible with the selected supply rail. Level-shifting is required when interfacing with mixed-voltage systems.

How does output loading affect skew and jitter performance?

Output-to-output skew is guaranteed <90 ps only when all CLK1–CLK4 outputs have identical capacitive and resistive loading. Mismatched loads introduce deterministic skew and increase jitter due to unequal rise/fall times. CLKOUT loading must also be controlled separately to maintain PLL lock and zero-delay behavior.

Is the PI6C22405-1HWIE pin-compatible with other Pericom clock buffers?

It shares the same 8-pin SOIC footprint with PI6C22405-1HWE and PI6C10805-1HWE, but differs electrically from non-zero-delay buffers like the PI6C20400 series. Pin compatibility does not imply functional interchangeability-substituting requires verification of PLL dependency, feedback configuration, and thermal derating.