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

Diodes Incorporated PI5C16861AE

Name: PI5C16861AE
Brand: Diodes Incorporated
SKU: PI5C16861AE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PI5C16861AE

Manufacturer:: Diodes Incorporated

Category:: Signal Switches, Multiplexers, Decoders

Package:: 48-TFSOP (0.240", 6.10mm Width)

Datasheet:: PI5C16861AE.pdf

Description:: IC BUS SWITCH 10 X 1:1 48TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:1,899

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Product details

Overview

PI5C16861AE from Pericom Semiconductor is a 20-bit, 2-port bus switch IC with 5Ω on-resistance, near-zero propagation delay (1.25 ns), and ultra-low quiescent current (0.2 µA typical), used to isolate or connect parallel data buses in notebook and embedded systems.

For engineers reviewing the PI5C16861AE datasheet, PI5C16861AE pinout, PI5C16861AE application, or PI5C16861AE equivalent, key selection criteria include bus enable timing (1.5–6.5 ns), high-impedance isolation capability, TSSOP-48 package compatibility, and industrial temperature support (–40°C to +85°C).

Technical Context

The PI5C16861AE implements a flow-through pinout architecture with two independent 20-bit bidirectional buses (A0–A19 and B0–B19), controlled by two active-low Bus Enable inputs (BE1, BE2). Each switch channel operates as a low-R_ON MOSFET pass gate without level-shifting or buffering.

It delivers direct DC-coupled signal routing with no added propagation delay beyond RC time constant (≤0.25 ns for 50 pF load), zero ground bounce, and TTL-compatible control logic (VIH = 2.0 V, VIL = 0.8 V) at 5 V ±10% supply.

Key Specifications

Parameter	Value and Actual Design Meaning
On-Resistance (R_ON)	5 Ω typical - enables direct bus coupling with minimal voltage drop and signal distortion
Propagation Delay	1.25 ns - negligible timing impact in high-speed parallel bus applications
Quiescent Current (I_CC)	0.2 µA typical - supports battery-powered operation and thermal management in notebooks
Bus Enable Timing	tPZH/tPLZ = 1.5–5.5 ns - ensures fast, deterministic bus isolation during state transitions
Operating Temperature	–40°C to +85°C - validated for industrial and mobile computing environments
Input Capacitance (C_IN)	6 pF - minimizes loading on driving sources and preserves signal integrity
Switch Off Capacitance	6 pF - maintains high isolation between A/B ports when disabled

Pinout & Package

Package: 48-pin Pb-free & Green TSSOP (240-mil wide, JEDEC MO-153 compliant), 0.5 mm pitch, body width 6.1 mm.

Pin/Terminal	Circuit Role	Design Meaning
A0–A19	Port A data bus inputs/outputs	Bidirectional I/O pins directly connected to Port B when corresponding switch is enabled
B0–B19	Port B data bus inputs/outputs	Mirror of Port A; forms 20-bit isolated bus pair with A-side
BE1, BE2	Active-low bus enable controls	Enable/disable switching for A0–A9/B0–B9 (BE1) and A10–A19/B10–B19 (BE2)
VCC	Power supply	5 V ±10% supply for internal logic and switch biasing; two VCC pins for noise reduction
GND	Ground reference	Two dedicated ground pins adjacent to VCC for stable return path and reduced impedance

Key Features

Feature	Design Value
Near-zero propagation delay	1.25 ns max - eliminates timing budget penalties in synchronous bus architectures
Flow-through pinout	Direct A-to-B alignment across package - simplifies PCB trace routing and reduces layer count
Ultra-low quiescent power	0.2 µA typical - extends battery life and avoids thermal derating in compact enclosures
5 Ω on-resistance	Ensures <10 mV drop at 2 mA - preserves logic levels and noise margins in 5 V TTL systems
High-impedance isolation	Hi-Z state with ±1 µA leakage - prevents back-driving and contention between bus segments

Applications

Memory Expansion Interface

Laptop Docking Station

Use Scenario: Isolating legacy SRAM or Flash memory banks from main CPU bus during reconfiguration.

IC Role / Device Role / Timing Role: Bidirectional bus switch enabling dynamic memory mapping without address decoder redesign.

Use Value: Eliminates need for tristate buffers or complex glue logic while maintaining full 5 V TTL compatibility.

Use Scenario: Switching shared USB, PCIe, or LPC signals between laptop and docking station peripherals.

IC Role / Device Role / Timing Role: Low-latency, low-R_ON signal path selector for hot-pluggable expansion interfaces.

Use Value: Enables sub-2 ns signal handoff with no added jitter or ground bounce-critical for USB 2.0 timing compliance.

Industrial PLC Backplane

Embedded Test Equipment

Use Scenario: Segregating I/O module data lanes from controller bus to prevent fault propagation.

IC Role / Device Role / Timing Role: Fail-safe bus isolator activated by watchdog-controlled BE inputs.

Use Value: Provides deterministic Hi-Z isolation within 5.5 ns of fault detection-meets SIL-2 functional safety timing requirements.

Use Scenario: Reconfiguring test signal paths between DUT interface and measurement ASICs.

IC Role / Device Role / Timing Role: Precision analog/digital signal routing switch with minimal capacitive loading (6 pF).

Use Value: Preserves signal fidelity up to 200 MHz due to low C_OFF and R_ON, avoiding measurement skew.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 20-bit bus switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74CBT16210DGGR	Higher R_ON (7 Ω typ), wider 56-pin TSSOP, 3.3 V only	Requires level-shifting for 5 V systems; unsuitable for mixed-voltage backplanes	Choose only if system operates exclusively at 3.3 V and board space allows larger footprint
PI5C16211AE	16-bit version, identical R_ON/timing, same TSSOP-48 package	Limited to 16-bit buses; cannot replace 20-bit routing without redesign	Select when bus width is ≤16 bits and pin compatibility with PI5C16861AE is required

Compared with SN74CBT16210DGGR and PI5C16211AE, the PI5C16861AE uniquely supports 20-bit 5 V operation in a compact 48-pin TSSOP, delivering lower on-resistance and faster disable timing-making it optimal for space-constrained, mixed-signal notebook and industrial backplane designs.

Availability

PI5C16861AE is available at Aetrix Electronics and suitable for notebook motherboard design, industrial PLC backplane interconnect, and embedded test equipment requiring stable component supply and long-term lifecycle support.

Supply support for PI5C16861AE 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 (now part of Diodes Incorporated) specialized in high-speed interface and signal-integrity solutions for computing, communications, and consumer electronics before its 2016 acquisition.

The PI5C16861AE belongs to Pericom's PI5C bus switch family, engineered specifically for low-latency, low-power bidirectional data routing in portable and industrial 5 V systems where signal integrity and thermal efficiency are critical.

FAQ

What is the maximum operating voltage for PI5C16861AE?

The PI5C16861AE is rated for VCC = 5 V ±10%, with absolute maximum supply voltage of +7.0 V. Operation outside 4.5 V–5.5 V violates electrical specifications and may cause timing violations or increased R_ON. It is not 3.3 V compatible-no internal level shifting is provided.

Can PI5C16861AE be used in hot-swap applications?

Yes-the device features controlled bus disable timing (tPLZ/tPHZ = 1.5–5.5 ns) and high-impedance isolation (±1 µA leakage), enabling safe insertion/removal of peripheral modules. However, external current-limiting resistors and TVS protection on A/B lines are recommended to suppress transients during plug events.

Does PI5C16861AE support partial power-down?

No-PI5C16861AE lacks individual port shutdown or standby modes. When VCC is applied, both BE1 and BE2 must be actively driven to maintain defined states. Leaving BE pins floating risks undefined switch behavior and potential bus contention.

How does the flow-through pinout improve PCB layout?

The A0–A19 and B0–B19 pins are arranged in mirrored, linear sequences across the package (e.g., A0/B0 adjacent, A1/B1 adjacent), allowing straight-through trace routing with minimal vias or layer changes. This reduces crosstalk, impedance discontinuities, and layout time-especially beneficial in dense 6-layer notebook motherboards.

PI5C16861AE Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 48-TFSOP (0.240", 6.10mm Width)

Packaging:: Tube

Product Status:: Obsolete

Type:: Bus Switch

Circuit:: 10 x 1:1

Independent Circuits:: 2

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:: 48-TSSOP

PI5C16861AE FAQ

1.How can I place an order for PI5C16861AE through Aetrix?

Please submit a Request for Quotation (RFQ) for PI5C16861AE 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 PI5C16861AE reliable?

The price and inventory of PI5C16861AE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI5C16861AE is usually 5 days.

3.What payment methods are accepted for PI5C16861AE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI5C16861AE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PI5C16861AE?

PI5C16861AE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PI5C16861AE 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 PI5C16861AE?

For technical support, including PI5C16861AE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI5C16861AE requirements.

6.How does Aetrix verify that PI5C16861AE is sourced from the original manufacturer or authorized distributors?

All PI5C16861AE 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 PI5C16861AE meets industry standards.

7.What is the process for return or replacement of PI5C16861AE?

All PI5C16861AE units undergo pre-shipment inspection (PSI). If there is an issue with PI5C16861AE, 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 PI5C16861AE part is unused and in its original packaging.

Return procedure for PI5C16861AE:

1.Submit a request within 90 days.

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

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