Diodes Incorporated PI3B16233VE

Overview

PI3B16233VE from Pericom Semiconductor is a 3.3V, 16-bit to 32-bit FET mux/demux NanoSwitch used for memory bank interleaving in high-speed digital systems. It features 5 Ω ON resistance, 4.5 ns max propagation delay, 0.2 mA typical quiescent current, and operates from –40°C to +85°C. The device supports dual 8-bit or single 16-bit configuration via SEL1/SEL2 control inputs.

For engineers reviewing the PI3B16233VE datasheet, PI3B16233VE pinout, PI3B16233VE application, or PI3B16233VE equivalent, key selection criteria include low ON-resistance switching, rail-to-rail logic compatibility, industrial temperature range support, and SSOP-56 package suitability for dense PCB layouts with signal integrity constraints.

Technical Context

The PI3B16233VE implements a CMOS-based analog bus switch architecture with dual independent 8-channel paths (A→B1/B2), each controlled by two select lines and two TEST inputs. Its rail-to-rail input tolerance (–0.5 V to +4.6 V) enables interfacing with mixed-voltage logic families without level shifters.

Switching behavior is governed by FET conduction with no internal latching or buffering-propagation delay arises solely from RC time constant of 5 Ω R_ON and load capacitance. Power supply sequencing requires V_CC/GND applied before signal assertion to prevent latch-up.

Key Specifications

Pinout & Package

PI3B16233VE is packaged in a Pb-free, RoHS-compliant 56-pin SSOP (300-mil wide), with 0.635 mm pitch and 7.39 mm × 10.06 mm body dimensions. Pin numbering follows standard SSOP convention, with pins 1–28 on one side and 29–56 on the other.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PI3B16233A and SN74CBT16233DGGR, PI3B16233VE delivers superior thermal performance (–40°C to +85°C), lower R_ON, faster switching, and integrated test-mode capability-making it optimal for mission-critical memory and industrial control routing.

Availability

PI3B16233VE is available at Aetrix Electronics and suitable for memory interleaving systems, notebook memory expansion modules, and industrial PLC I/O multiplexing requiring stable component supply and long-term lifecycle assurance.

Supply support for PI3B16233VE 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 was a fabless provider of high-speed interface and signal integrity solutions, acquired by Diodes Incorporated in 2016; its legacy timing, switching, and signal conditioning products remain widely deployed.

The PI3B16233VE belongs to Pericom's NanoSwitch™ family, designed specifically for low-latency, low-power analog bus switching in memory, computing, and communications infrastructure where signal fidelity and timing predictability are critical.

FAQ

Is PI3B16233VE compatible with 5 V logic inputs?

Yes. The device accepts logic inputs from –0.5 V to +4.6 V regardless of V_CC level, enabling direct connection to 5 V TTL outputs without level-shifting circuitry. This rail-to-rail input specification is guaranteed across the full operating temperature range and does not require external pull-ups or clamping diodes.

What is the maximum continuous current per channel?

The absolute maximum DC output current per channel is 120 mA, as specified in the Absolute Maximum Ratings table. This limit applies under steady-state conditions with proper PCB copper pour and ambient temperature ≤ +85°C. Exceeding this current risks thermal runaway due to R_ON-induced power dissipation.

Does PI3B16233VE support hot-plug operation?

No. Hot-plug operation is not supported. Pericom explicitly recommends applying V_CC and GND before any signal or control input to avoid latch-up or ESD-induced damage. The device lacks internal hot-swap protection circuitry, and violating sequencing may cause permanent failure.

How does the TEST pin function affect signal routing?

When TEST1 and TEST2 are driven HIGH, the A port is simultaneously connected to both B1 and B2 ports-effectively mirroring the input across both output banks. This mode enables functional verification of interconnect integrity and simultaneous loading of identical data into dual memory banks during initialization or diagnostics.