Diodes Incorporated PI6C10810LE

Overview

PI6C10810LE from Pericom Semiconductor is a 1.2V–2.5V, 250 MHz, non-inverting 1:10 clock buffer with banked power supplies (VDDA for CLK0–CLK4, VDDC for CLK5–CLK6, VDDB for CLK7–CLK9), output-to-output skew as low as ±60 ps (Bank A, 2.5V), and industrial temperature range (–40°C to +85°C). It serves as a low-jitter clock distribution IC in synchronous networking systems requiring precise timing alignment across multiple PHY/MAC interfaces.

For engineers reviewing the PI6C10810LE datasheet, PI6C10810LE pinout, PI6C10810LE application, or PI6C10810LE equivalent, key selection criteria include supply voltage flexibility per output bank, sub-2 ns propagation delay at 2.5V, additive jitter ≤50 ps, and TSSOP-20 package compatibility with high-density PCB layouts.

Technical Context

The PI6C10810LE implements a single-input, ten-output fanout architecture with three independent power domains enabling mixed-voltage system integration. Each output bank (A/B/C) operates from separate VDD rails, allowing simultaneous 1.2V, 1.5V, 1.8V, or 2.5V logic-level outputs without level-shifting circuitry.

Its internal design targets synchronous Ethernet and packet-switching applications where deterministic skew control is critical: Bank A (CLK0–CLK4) achieves ±60 ps max output skew at 2.5V, while pulse skew remains ≤200 ps and part-to-part skew is bounded at 300 ps under matched board conditions.

Key Specifications

Pinout & Package

PI6C10810LE is housed in a Pb-free, green-compliant 20-pin TSSOP (173-mil wide, package code L), with 0.65 mm pitch and JEDEC MO-153F/AC compliance. The package supports automated assembly and thermal dissipation up to 16 mA quiescent current at 2.7V.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICS85310AMLF and PI6C20400LEX, the PI6C10810LE uniquely supports mixed-voltage fanout from a single CMOS input, making it optimal for cost-sensitive, space-constrained networking boards needing ten precisely aligned clocks without external level translation or multiplexing.

Availability

PI6C10810LE is available at Aetrix Electronics and suitable for 10GBASE-T Ethernet PHY clocking, multi-port switch fabric timing, synchronous packet processing units, and optical transport network framer clocking requiring stable component supply and long-term lifecycle support.

Supply support for PI6C10810LE 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 PI6C10810 belongs to Pericom's low-skew clock buffer product line, engineered specifically for synchronous networking systems demanding sub-100 ps output skew, multi-rail voltage support, and industrial temperature reliability.

FAQ

What is the maximum input frequency supported by PI6C10810LE at 1.2V supply?

At 1.2V supply, the PI6C10810LE supports a maximum input frequency of 150 MHz, as specified in its 1.2V AC Characteristics table. This limitation arises from reduced drive strength and increased propagation delay (4–6 ns) at lower voltages, making it suitable for slower interfaces like management processors or legacy Ethernet PHYs but not for 250 MHz applications.

Can PI6C10810LE drive 50 Ω transmission lines directly?

No - the PI6C10810LE is designed for CMOS load conditions (RL = 500 Ω, CL = 3 pF per output) and does not provide 50 Ω output impedance. Direct connection to 50 Ω traces will cause signal reflection and degraded edge integrity. Use series termination (e.g., 33 Ω resistor near driver) or external buffer stages for controlled-impedance routing.

How are the three power supply pins (VDDA, VDDC, VDDB) assigned to output banks?

VDDA powers CLK0–CLK4 (Bank A), VDDC powers CLK5–CLK6 (Bank C), and VDDB powers CLK7–CLK9 (Bank B). This separation allows independent voltage selection per bank - for example, VDDA = 2.5V for legacy PHYs, VDDB = 1.2V for low-power management cores, and VDDC = 1.8V for SerDes interfaces - all from one device.

Is PI6C10810LE pin-compatible with other variants in the PI6C108xx family?

Yes - PI6C10810LE (TSSOP-20), PI6C10810HE (SSOP-20), and PI6C10810QE (QSOP-20) share identical pinouts and electrical specifications. Only the package footprint differs; layout migration between variants requires only land pattern adjustment, not schematic changes or signal re-routing.