Diodes Incorporated PI6CL10804WEX

Overview

PI6CL10804WEX from Pericom Semiconductor is a 1.2V/1.5V, 200 MHz, 1:4 non-inverting clock buffer with ≤100 ps output-to-output skew, 3.5 ns max propagation delay, and 3.3V-tolerant inputs-designed for synchronous networking systems requiring precise clock distribution across multiple PHY/MAC interfaces.

For engineers reviewing the PI6CL10804WEX datasheet, PI6CL10804WEX pinout, PI6CL10804WEX application, or PI6CL10804WEX equivalent, key selection criteria include supply voltage flexibility (1.2V/1.5V), sub-100 ps skew performance at full 200 MHz operation, SOIC-8W package compatibility, and OE-controlled output enable functionality in high-density timing architectures.

Technical Context

The PI6CL10804WEX implements a low-noise, single-stage CMOS buffer architecture optimized for minimal additive jitter and duty-cycle preservation. It accepts a single buffered input (BUF_IN) and drives four LVCMOS-compatible outputs (CLK0–CLK3) with matched internal trace lengths and balanced drive strength to achieve ≤100 ps intra-device skew.

Output enable (OE) operates asynchronously with 3.3V-tolerant logic levels, allowing dynamic clock gating without affecting VDD-supplied output swing integrity. The device supports dual supply modes (1.2V or 1.5V) with separate DC and AC characterization per rail, enabling drop-in use in both DDR2/DDR3 memory subsystems and 10/100/1000BASE-T PHY clock trees.

Key Specifications

Pinout & Package

PI6CL10804WEX is housed in an 8-pin SOIC (W) package with 153-mil body width, Pb-free and RoHS-compliant construction. Pin 1 is marked by a beveled corner or dot; the device uses standard SOIC thermal and mechanical dimensions per JEDEC MS-012.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICS85301AMLF and PI6C20400LEX, the PI6CL10804WEX uniquely balances 1.2/1.5 V operation, 3.3 V-tolerant input, and ≤100 ps skew-making it optimal for mixed-voltage networking SoC designs where supply headroom and interface compatibility constrain alternatives.

Availability

PI6CL10804WEX is available at Aetrix Electronics and suitable for 10/100/1000BASE-T PHY clocking, DDR2/DDR3 memory controller clock trees, and industrial PLC real-time I/O timing requiring stable component supply across extended temperature and long production lifecycles.

Supply support for PI6CL10804WEX 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 (now part of Diodes Incorporated) specialized in high-performance timing, interface, and signal-integrity solutions for networking, computing, and communications infrastructure.

The PI6CL10804 belongs to Pericom's low-skew clock buffer product line, engineered specifically for synchronous packet-switched systems where deterministic clock distribution across multiple PHYs, MACs, or memory interfaces is critical to system-level timing compliance.

FAQ

What supply voltage options does the PI6CL10804WEX support?

The PI6CL10804WEX operates at either 1.2 V ±0.1 V or 1.5 V ±0.1 V, with full AC and DC specifications guaranteed across both rails. It does not support 1.8 V, 2.5 V, or 3.3 V supply voltages. Each supply mode has distinct absolute maximum ratings and characterized timing parameters, and users must select one rail and maintain it consistently across VDD and all outputs.

How does the OE pin function, and what logic levels are valid?

The OE (Output Enable) pin is active-high and asynchronous, disabling all CLK0–CLK3 outputs to high-impedance when pulled low. It accepts 3.3 V-tolerant logic levels: VIH ≥ 0.65 × VDD and VIL ≤ 0.35 × VDD. No external pull-up is required, but a stable logic source must drive OE to avoid metastability during power-up or reset sequences.

Is the PI6CL10804WEX pin-compatible with other Pericom clock buffers?

No, the PI6CL10804WEX is not pin-compatible with other Pericom 1:4 buffers such as PI6C20400LEX or PI6C10804WE. Its 8-pin SOIC (W) pinout places GND and VDD on opposite corners and assigns BUF_IN and OE to specific locations that differ from alternate fanout configurations or supply-voltage variants. Layout reuse requires verification against the exact mechanical drawing.

What is the maximum capacitive load the PI6CL10804WEX can drive per output?

The PI6CL10804WEX is characterized for CL = 5 pF per output, with timing specs (propagation delay, skew, rise/fall time) guaranteed under this condition. While it can drive higher loads, exceeding 5 pF degrades tR/tF and increases skew unpredictably. For >5 pF loads, external series termination or buffer replication is recommended to maintain signal integrity and timing margin.