Diodes Incorporated PI3CH1010LE

Overview

PI3CH1010LE from Diodes Incorporated (acquired Pericom Semiconductor) is a 10-bit, low-enable bus switch optimized for high-bandwidth signal routing in hot-plug systems. It operates at 1.8V/2.5V/3.3V supply, delivers 500 MHz bandwidth, features 4–8 Ω on-resistance, and supports rail-to-rail analog switching up to 5V with 3.3V V_CC. It is used in PCIe add-in card docking and high-speed data multiplexing.

For engineers reviewing the PI3CH1010LE datasheet, PI3CH1010LE pinout, PI3CH1010LE application, or PI3CH1010LE equivalent, key selection criteria include enable-low logic polarity, 500 MHz –3dB bandwidth, 1.8–3.3V supply compatibility, 5V-tolerant I/O in both ON/OFF states, and TSSOP-24 thermal and layout constraints.

Technical Context

The PI3CH1010LE implements ten independent bilateral analog/digital CMOS transmission gates controlled by a single active-low enable (EN) input. Its architecture eliminates propagation delay beyond RC time constant (<0.3 ns for 10 pF load), enabling transparent signal pass-through without timing skew.

It supports hot insertion via 5V I/O tolerance and 8 kV HBM ESD protection, while maintaining latch-up immunity >250 mA per JESD17. The device achieves <9 ns max disable time across all supply voltages and maintains sub-1 ns typical propagation delay regardless of V_CC level.

Key Specifications

Pinout & Package

PI3CH1010LE is housed in a 24-pin, 173-mil wide plastic TSSOP (L) package with exposed pad for thermal dissipation. Pin pitch is 0.65 mm; body width is 4.4 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 10-bit bus switch applications.

Compared with PI3CH1010LE, PI3CH1012LE offers identical performance with inverted enable polarity-ideal for drop-in replacement where logic inversion is acceptable-while SN74CBT16210DGGR provides greater channel density at the expense of supply flexibility and pin compatibility.

Availability

PI3CH1010LE is available at Aetrix Electronics and suitable for PCIe docking, USB 3.0 multiplexing, DDR2 bus isolation, and industrial CAN FD gateway designs requiring stable component supply and long-term obsolescence mitigation.

Supply support for PI3CH1010LE 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 acquired Pericom Semiconductor in 2017 and integrates its high-speed interface portfolio into its signal integrity solutions business unit.

The PI3CH1010LE belongs to Pericom's legacy "CH" series of high-bandwidth analog bus switches, designed specifically for hot-plug-capable datacom backplanes and multi-protocol I/O consolidation in space-constrained systems.

FAQ

What is the maximum allowable input voltage when V_CC = 1.8 V?

The PI3CH1010LE supports 0–6 V input voltage on all A/B pins regardless of V_CC level. With 1.8 V supply, it safely handles 5 V logic or analog signals without damage or clamping-enabling mixed-voltage interoperation in FPGA I/O banks and legacy peripheral interfaces.

Does PI3CH1010LE support differential signaling such as LVDS or USB 3.0?

Yes-the device's 500 MHz bandwidth, <0.3 ns propagation skew, and matched 4–8 Ω on-resistance across all 10 channels preserve differential pair integrity. It has been validated in USB 3.0 SSTX/SSRX and LVDS clock/data paths where common-mode range falls within 0–3.3 V.

Is PI3CH1010LE pin-compatible with PI3CH1012LE?

Yes-both devices share identical 24-pin TSSOP (L) footprint and A/B/EN/V_CC/GND pin assignments. The only functional difference is enable polarity: PI3CH1010LE uses active-low EN (Pin 23), while PI3CH1012LE uses active-high EN. No PCB change is needed for substitution.

What thermal considerations apply in continuous 500 MHz operation?

At 3.3 V and full 10-bit switching, PI3CH1010LE dissipates ≤0.5 W. In standard 2-layer FR-4 with 1 oz copper, junction temperature rise is ~25°C above ambient. For sustained high-frequency use, thermal relief vias under the exposed pad and ≥2 cm² copper pour reduce θ_JA to <60°C/W.