Diodes Incorporated PI3CH1000QE

Overview

PI3CH1000QE from Diodes Incorporated (acquired Pericom Semiconductor) is a 10-bit, dual-enable, low-voltage bus switch with near-zero propagation delay (<0.3 ns), 500 MHz –3 dB bandwidth, and 5 Ω typical on-resistance. It operates at 1.8 V/2.5 V/3.3 V supply voltages, supports rail-to-rail analog switching up to 5 V with 3.3 V supply, and enables hot-plug-capable signal routing in high-speed data paths.

For engineers reviewing the PI3CH1000QE datasheet, PI3CH1000QE pinout, PI3CH1000QE application, or PI3CH1000QE equivalent, this device is selected for high-fidelity analog/digital signal switching where minimal insertion loss, sub-nanosecond timing integrity, and I/O voltage tolerance across mixed-supply systems are critical - especially in backplane interconnects, docking stations, and differential data routing.

Technical Context

The PI3CH1000QE implements ten independent bilateral CMOS transmission gates controlled by two active-low enable inputs (EN1, EN2), allowing selective activation of A0–A4/B0–B4 (EN1=LOW), A5–A9/B5–B9 (EN2=LOW), or all ten channels (both enables LOW). Its architecture eliminates ground bounce and adds no measurable propagation delay beyond RC time constant (~0.3 ns for 10 pF load).

It supports hot insertion with 5 V I/O tolerance in both ON and OFF states, 8 kV HBM ESD protection, and latch-up immunity >200 mA per JESD17. The device maintains consistent 500 MHz bandwidth and <6 Ω R_ON across 1.8 V–3.3 V supply range, enabling interoperability between legacy 3.3 V and modern low-voltage logic domains.

Key Specifications

Pinout & Package

PI3CH1000QE is housed in a 24-pin, 173-mil wide plastic TSSOP (L) package with Pb-free and green compliance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74CBT16210DGGR and TS3DV642RTVR, PI3CH1000QE uniquely balances 10-bit granularity, dual-enable flexibility, 500 MHz bandwidth, and true hot-plug resilience - making it optimal for compact, mixed-voltage, field-upgradable systems where timing precision and robustness coexist.

Availability

PI3CH1000QE is available at Aetrix Electronics and suitable for USB 2.0 hub design, industrial backplane interconnects, and laptop docking station development requiring stable component supply and long-term manufacturability.

Supply support for PI3CH1000QE 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 broad mixed-signal solutions for datacom, computing, and industrial markets.

The PI3CH1000QE belongs to Pericom's legacy high-bandwidth analog switch product line, engineered specifically for hot-pluggable, multi-voltage system interconnects where signal fidelity and robustness outweigh raw channel density.

FAQ

Can PI3CH1000QE operate with 5 V supply?

No - the absolute maximum supply voltage is 4.6 V, and recommended operation is strictly 1.8 V, 2.5 V, or 3.3 V. However, its I/O pins tolerate up to 6 V regardless of V_CC, enabling safe connection to 5 V signals while powered from lower voltages.

What is the maximum capacitive load the PI3CH1000QE can drive at 500 MHz?

The device maintains 500 MHz –3 dB bandwidth with ≤10 pF total load capacitance (including PCB trace, connector, and receiver input). Exceeding 10 pF degrades high-frequency response; layout must minimize stubs and use controlled impedance routing.

How does dual-enable logic improve system design versus single-enable switches?

Dual enables (EN1, EN2) allow independent control of two 5-bit subsets - enabling staggered power-up, partial bus isolation during diagnostics, or dynamic reconfiguration without full bus reset. This reduces software overhead and improves fault containment in modular systems.

Is PI3CH1000QE pin-compatible with earlier Pericom PI3CH1000 variants?

Yes - PI3CH1000QE shares identical 24-pin TSSOP (L) pinout and electrical behavior with PI3CH1000LE and PI3CH1000LEX. The "QE" suffix denotes Diodes Incorporated's post-acquisition qualification and packaging (tape-and-reel, Pb-free), with no functional or mechanical deviation.