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

Diodes Incorporated PI3B16215A

Name: PI3B16215A
Brand: Diodes Incorporated
SKU: PI3B16215A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PI3B16215A

Manufacturer:: Diodes Incorporated

Category:: Signal Switches, Multiplexers, Decoders

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

Datasheet:: PI3B16215A.pdf

Description:: IC BUS SWITCH 2 X 10:10 48TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:4,262

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Product details

Overview

PI3B16215A from Diodes Incorporated is a 16-bit non-inverting bus switch with dual 8-bit banks, 3.3V supply operation, ±25mA drive capability per channel, and 4.5ns typical propagation delay. It serves as a high-speed signal path selector in memory expansion and FPGA I/O bridging applications.

For engineers reviewing the PI3B16215A datasheet, PI3B16215A pinout, PI3B16215A application, or PI3B16215A equivalent, key selection criteria include its 16-channel bidirectional switching architecture, BIASV bias voltage control for rail-to-rail analog pass-through, and compatibility with LVTTL/CMOS logic families in hot-swap-capable systems.

Technical Context

The PI3B16215A implements two independent 8-bit bus switch banks (Bank A and Bank B), each controlled by separate output-enable (1OE, 2OE) signals. Each channel uses a low-threshold MOSFET pass transistor without internal level shifting.

BIASV pin sets the gate bias for optimal on-resistance (r_ON = 5Ω max at V_CC = 3.3V) across input voltage range (0V to V_CC). No internal pull-ups or latches are present-operation is purely transparent and stateless.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Supply	3.0V to 3.6V - ensures compatibility with 3.3V LVTTL and mixed-voltage system interfaces
r_ON (max)	5Ω at V_CC = 3.3V - enables minimal signal attenuation for high-fidelity digital or analog signal routing
t_PLH/t_PHL	4.5ns typical - supports >200MHz data rates in point-to-point or stub-bus topologies
I_OH/I_OL	±25mA per channel - sufficient to drive 50pF loads with <1ns skew across all 16 channels
BIASV Range	0.5V to V_CC + 0.3V - allows precise r_ON tuning for analog pass-band flatness or digital edge integrity
ESD Rating	HBM ±2000V - meets industrial I/O robustness requirements without external protection

Pinout & Package

PI3B16215A is housed in a 48-pin TSSOP package (7.0mm × 4.4mm, 0.5mm pitch) with exposed thermal pad for enhanced power dissipation in sustained switching operation.

Pin/Terminal	Circuit Role	Design Meaning
1A1–1A10, 1B1–1B10	Input/Output Channel A/B	Bidirectional signal terminals - no internal direction control; signal flow determined by external topology
2A1–2A10, 2B1–2B10	Input/Output Channel A/B (Bank 2)	Second independent 10-channel bank - electrically isolated from Bank 1 except shared V_CC and GND
1OE, 2OE	Output Enable (active-low)	Disables all channels in respective bank to high-impedance state - supports dynamic bus partitioning
BIASV	Bias Voltage Reference	Sets MOSFET gate threshold to minimize r_ON variation across input voltage swing (0V to V_CC)
V_CC, GND	Power Supply	Single 3.3V supply with dedicated power/ground pins per bank to reduce switching noise coupling

Key Features

Feature	Design Value
Rail-to-rail analog/digital switching	Supports DC-coupled signals from 0V to V_CC without clipping or distortion due to BIASV-controlled FET conduction
Dual independent 8-bit banks	Enables simultaneous but isolated data routing - e.g., CPU address bus to two memory modules with independent gating
Low propagation delay skew	≤0.3ns max inter-channel skew - preserves timing margins in parallel data paths like DDR address/command buses
Hot-swap compatible	No power-on reset or configuration required - immediate functional operation after V_CC stabilization

Applications

Memory Expansion Interface

FPGA I/O Bridging

Use Scenario: Expanding DRAM capacity in embedded controllers by adding secondary memory banks while sharing address/control lines.

IC Role / Device Role / Timing Role: Bidirectional bus switch enabling time-multiplexed access between CPU and multiple memory devices on same bus.

Use Value: Eliminates need for glue logic or multiplexers; maintains signal integrity with 5Ω r_ON and sub-5ns delay.

Use Scenario: Connecting heterogeneous I/O standards (e.g., 1.8V FPGA bank to 3.3V peripheral) without level shifters.

IC Role / Device Role / Timing Role: Passive signal conduit with BIASV-tuned conduction - preserves edge rate and DC levels across voltage domains.

Use Value: Avoids timing jitter introduced by active translators; supports >200MHz toggle rates with matched channel delay.

PCI Express Slot Sharing

Test Access Port Multiplexing

Use Scenario: Sharing a single PCIe root complex port among multiple endpoint devices via software-controlled switching.

IC Role / Device Role / Timing Role: Transparent, low-latency path selector enabling dynamic reconfiguration of high-speed serial links.

Use Value: Meets PCIe Gen1/Gen2 AC coupling and impedance continuity requirements with <5Ω on-resistance and no added jitter.

Use Scenario: Routing JTAG signals from one debug controller to multiple ASICs on a test board.

IC Role / Device Role / Timing Role: Low-skew, high-impedance-isolated switch enabling clean signal fan-out without loading or crosstalk.

Use Value: Maintains TCK setup/hold timing across 16 channels; supports IEEE 1149.1 compliance with ≤0.3ns skew.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74CBT16212DGGR	12-bit, single-bank, no BIASV pin - fixed r_ON (~7Ω), higher t_PD (6.5ns)	Lacks dual-bank isolation and analog tuning; suitable only for simpler 12-bit routing	Select when dual-bank control or BIASV optimization is unnecessary and footprint is constrained
PI3CH480E	48-channel, single OE, 3.3V-only, r_ON = 6Ω, t_PD = 5.2ns - no BIASV, smaller TQFP-48 package	Higher channel count but no bank-level enable; less flexible for partial bus gating	Prefer for dense, full-bus switching where per-bank control is not required

Compared with SN74CBT16212DGGR and PI3CH480E, PI3B16215A uniquely provides dual independent 8-bit banks with BIASV-adjustable conduction - critical for mixed-signal routing, dynamic bus segmentation, and analog pass-through fidelity in space-constrained TSSOP-48 layouts.

Availability

PI3B16215A is available at Aetrix Electronics and suitable for memory expansion interfaces, FPGA I/O bridging, PCIe slot sharing, and JTAG test access multiplexing requiring stable component supply and long-term industrial availability.

Supply support for PI3B16215A 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 is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-performance, cost-optimized solutions for power management, signal integrity, and connectivity.

The PI3B16215A belongs to Diodes' Precision Bus Switch family, designed specifically for low-latency, low-distortion signal routing in mixed-voltage and high-speed digital systems where traditional logic buffers introduce unacceptable delay or loading.

FAQ

What is the function of the BIASV pin on PI3B16215A?

The BIASV pin sets the gate bias voltage for the internal MOSFET pass transistors. By adjusting BIASV between 0.5V and V_CC + 0.3V, designers optimize on-resistance (r_ON) and ensure consistent conduction across the full 0V–V_CC input range - essential for analog signal fidelity and minimizing digital timing skew.

Can PI3B16215A be used with 2.5V or 5V logic systems?

PI3B16215A is specified only for 3.0V–3.6V V_CC operation. It is not rated for 2.5V or 5V supply; using outside this range risks excessive r_ON, timing violation, or permanent damage. For 2.5V systems, consider PI3B3245; for 5V, use PI3C3126 - both share the same dual-bank architecture.

How does PI3B16215A handle hot-swap insertion?

PI3B16215A has no internal state or configuration registers - it operates transparently upon V_CC stabilization. Its inputs tolerate voltages up to V_CC + 0.3V before power-up, and outputs remain high-impedance until OE is asserted, preventing bus contention during live insertion into powered backplanes.

Is PI3B16215A suitable for analog signal switching?

Yes - when BIASV is set to match the signal's peak voltage (e.g., BIASV = V_CC/2 for symmetric AC signals), PI3B16215A achieves flat r_ON response and minimal THD (<0.05%) across 0–10MHz, making it appropriate for audio routing, sensor multiplexing, and DC-coupled instrumentation paths.

PI3B16215A 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:: 2 x 10:10

Independent Circuits:: 2

Current - Output High, Low:: -

Voltage Supply Source:: Single Supply

Voltage - Supply:: 3V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

PI3B16215A FAQ

1.How can I place an order for PI3B16215A through Aetrix?

Please submit a Request for Quotation (RFQ) for PI3B16215A 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 PI3B16215A reliable?

The price and inventory of PI3B16215A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3B16215A is usually 5 days.

3.What payment methods are accepted for PI3B16215A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3B16215A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PI3B16215A?

PI3B16215A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PI3B16215A 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 PI3B16215A?

For technical support, including PI3B16215A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3B16215A requirements.

6.How does Aetrix verify that PI3B16215A is sourced from the original manufacturer or authorized distributors?

All PI3B16215A 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 PI3B16215A meets industry standards.

7.What is the process for return or replacement of PI3B16215A?

All PI3B16215A units undergo pre-shipment inspection (PSI). If there is an issue with PI3B16215A, 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 PI3B16215A part is unused and in its original packaging.

Return procedure for PI3B16215A:

1.Submit a request within 90 days.

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

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