Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Logic > Signal Switches, Multiplexers, Decoders

Diodes Incorporated PI5C34171CAE

Name: PI5C34171CAE
Brand: Diodes Incorporated
SKU: PI5C34171CAE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: PI5C34171CAE

Manufacturer:: Diodes Incorporated

Category:: Signal Switches, Multiplexers, Decoders

Package:: 56-TFSOP (0.240", 6.10mm Width)

Datasheet:: PI5C34171CAE.pdf

Description:: IC DEMULTIPLEX 17 X 1:2 56TSSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,465

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

PI5C34171CAE from Pericom Semiconductor is a 17-to-34-bit bidirectional demultiplexing bus switch designed for PCI Hot-Plug applications. It features 5 Ω typical on-resistance, –2 V undershoot protection on A-port inputs, 15 pF max channel on-capacitance, 250 ps propagation delay, and operates at +5 V ±10% over –40°C to +85°C.

For engineers reviewing the PI5C34171CAE datasheet, PI5C34171CAE pinout, PI5C34171CAE application, or PI5C34171CAE equivalent, key selection criteria include hot-swap robustness, low RC delay under 50 pF load, rail-to-rail logic compatibility, and TSSOP-56 packaging for high-density PCI backplane interconnects.

Technical Context

This device implements a dual-select demux architecture with two independent control inputs (SEL1, SEL2) enabling routing of each 17-bit A-port channel to either B1, B2, or both B-banks simultaneously. Its CMOS bus-switch topology provides true bidirectional signal flow without level translation.

The switch uses zero-threshold transmission gates with integrated clamp diodes on A-port pins only, supporting –2 V transient undershoot suppression while maintaining <10 Ω R_ON across full temperature range. No internal pull-ups/downs are present-logic states are strictly driven by external sources.

Key Specifications

Parameter	Value and Actual Design Meaning
Channel Count	17-bit input → 34-bit output (dual 17-bit banks)
R_ON (Typ)	5 Ω - enables <250 ps propagation delay into 50 pF loads
V_CC Range	+5 V ±10% - compatible with standard PCI signaling rails
Undershoot Protection	–2 V on all A-port pins only - prevents latch-up during hot-insertion transients
C_ON (Max)	13.5 pF - minimizes signal integrity degradation in high-speed parallel buses
ESD Rating	±2 kV HBM - meets industrial handling requirements for board-level assembly
Operating Temp	–40°C to +85°C - supports extended-temperature PCI expansion slots

Pinout & Package

Package: 56-pin plastic TSSOP (240-mil body width), Pb-free & Green compliant (JEDEC MO-153AC).

Pin/Terminal	Circuit Role	Design Meaning
1A–17A	Data Input/Output Port A	Bidirectional data path; supports –2 V undershoot clamping
1B1–17B1	Data Output Bank 1	First 17-bit demux output bank; Hi-Z when disabled
1B2–17B2	Data Output Bank 2	Second 17-bit demux output bank; Hi-Z when disabled
SEL1, SEL2	Demux Control Inputs	TTL-compatible; rail-to-rail capable up to +5.5 V regardless of V_CC
V_CC, GND	Power & Reference	Single 5 V supply; no separate I/O voltage required

Key Features

Feature	Design Value
Dual independent demux control	SEL1/SEL2 allow per-channel routing to B1 only, B2 only, or both banks simultaneously
Hot-plug transient resilience	–2 V undershoot tolerance on all A-port pins prevents system lockup during card insertion
Low RC time constant	5 Ω R_ON + 13.5 pF C_ON yields <0.25 ns intrinsic switch delay into 50 pF loads
Rail-to-rail logic interface	Control inputs accept 0 V to +5.5 V regardless of V_CC = 4.5–5.5 V, easing mixed-voltage board design

Applications

PCI Express Slot Expansion

Industrial Backplane Interconnect

Use Scenario: Adding hot-swappable peripheral cards to server motherboards without powering down the system.

IC Role / Device Role / Timing Role: Bidirectional demux isolating A-port from dual B-banks during insertion/removal sequences.

Use Value: Prevents bus contention and ground bounce via –2 V undershoot clamping and Hi-Z disable state.

Use Scenario: Enabling modular I/O modules in programmable logic controllers with field-replaceable interfaces.

IC Role / Device Role / Timing Role: Signal path selector routing sensor/actuator data between controller and redundant I/O banks.

Use Value: 250 ps propagation delay preserves timing margins in deterministic real-time control loops.

Telecom Line Card Hot-Swap

Test Equipment Modular Interface

Use Scenario: Inserting or removing line interface cards in carrier-grade switches during live traffic.

IC Role / Device Role / Timing Role: Isolation switch decoupling backplane data lanes from card-specific logic during transition phases.

Use Value: 5 Ω R_ON ensures minimal signal attenuation across 32-bit parallel control/data buses.

Use Scenario: Reconfiguring instrument I/O paths (e.g., DIO, analog mux) via interchangeable front-panel modules.

IC Role / Device Role / Timing Role: Demux controller managing shared resource access between host FPGA and plug-in daughterboards.

Use Value: 15 pF max C_ON maintains bandwidth >100 MHz at 20 pF load, supporting fast test pattern switching.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
PI5C3257AE	8-bit, single 2:1 demux; no undershoot protection; 7 Ω R_ON	Limited to non-hot-swap, lower-channel-count systems	Select when only 8-bit routing is needed and transient immunity is not required.
SN74CBT3245APW	8-bit FET bus switch; no demux function; 6 Ω R_ON; no SEL logic	Requires external logic for bank selection; lacks integrated control decoding	Choose for simple bidirectional isolation where demux logic is implemented externally.

Compared with PI5C3257AE and SN74CBT3245APW, the PI5C34171CAE uniquely integrates dual-bank demux logic, –2 V A-port clamping, and 17×2 channel density in one TSSOP-56 package-enabling compact, robust PCI Hot-Plug implementations without discrete glue logic.

Availability

PI5C34171CAE is available at Aetrix Electronics and suitable for PCI Hot-Plug slot expansion, industrial backplane interconnect, and telecom line card replacement requiring stable component supply and long-term lifecycle support.

Supply support for PI5C34171CAE 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; legacy products maintain full datasheet compliance and industrial qualification.

The PI5C34171CAE belongs to Pericom's PCI Hot-Plug bus switch family, engineered specifically to meet PCI Special Interest Group (PCI-SIG) mechanical and electrical requirements for safe, glitch-free card insertion and removal.

FAQ

What is the maximum undershoot voltage the PI5C34171CAE can withstand?

The PI5C34171CAE supports –2.0 V undershoot on all A-port pins (1A–17A) with pulse duration <25 ns, verified per DC Electrical Characteristics table. This clamping is implemented via integrated diodes and applies only to A-port inputs-not B1/B2 outputs or control pins.

Does the PI5C34171CAE require external pull-up or pull-down resistors on SEL1/SEL2?

No. SEL1 and SEL2 are CMOS-compatible logic inputs with no internal termination; they must be actively driven to defined HIGH or LOW states. Floating control inputs are undefined and may cause unintended routing behavior or increased ICC.

Can the PI5C34171CAE operate with V_CC = 3.3 V?

No. The device is specified only for +5 V ±10% (4.5 V to 5.5 V). Operation outside this range violates Absolute Maximum Ratings and invalidates R_ON, propagation delay, and undershoot protection guarantees per the datasheet.

Is the PI5C34171CAE pin-compatible with earlier PI5C34171C versions?

Yes. The PI5C34171CAE shares identical pinout, electrical characteristics, and thermal profile with the leaded PI5C34171C (PI5C34171CA), differing only in Pb-free & Green material composition per JEDEC J-STD-609A Class 3.

PI5C34171CAE Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 56-TFSOP (0.240", 6.10mm Width)

Packaging:: Tube

Product Status:: Obsolete

Type:: Demultiplexer

Circuit:: 17 x 1:2

Independent Circuits:: 1

Current - Output High, Low:: -

Voltage Supply Source:: Single Supply

Voltage - Supply:: -

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 56-TSSOP

PI5C34171CAE FAQ

1.How can I place an order for PI5C34171CAE through Aetrix?

Please submit a Request for Quotation (RFQ) for PI5C34171CAE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PI5C34171CAE reliable?

The price and inventory of PI5C34171CAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI5C34171CAE is usually 5 days.

3.What payment methods are accepted for PI5C34171CAE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI5C34171CAE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PI5C34171CAE?

PI5C34171CAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PI5C34171CAE order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PI5C34171CAE?

For technical support, including PI5C34171CAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI5C34171CAE requirements.

6.How does Aetrix verify that PI5C34171CAE is sourced from the original manufacturer or authorized distributors?

All PI5C34171CAE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PI5C34171CAE meets industry standards.

7.What is the process for return or replacement of PI5C34171CAE?

All PI5C34171CAE units undergo pre-shipment inspection (PSI). If there is an issue with PI5C34171CAE, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PI5C34171CAE part is unused and in its original packaging.

Return procedure for PI5C34171CAE:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…