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

Diodes Incorporated PI3VT3306LE

Name: PI3VT3306LE
Brand: Diodes Incorporated
SKU: PI3VT3306LE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PI3VT3306LE

Manufacturer:: Diodes Incorporated

Category:: Signal Switches, Multiplexers, Decoders

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: PI3VT3306LE.pdf

Description:: IC BUS SWITCH 1 X 1:1 8TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:4,742

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Product details

Overview

PI3VT3306LE from Diodes Incorporated (acquired Pericom Semiconductor) is a 2-bit, 2-port bus switch IC performing bidirectional voltage translation between 3.3V and 2.5V or 2.5V and 1.8V domains, featuring 5Ω typical on-resistance, near-zero propagation delay (0.25ns), and active-low bus enable control. It operates from 2.5V or 3.3V supply and is used in mixed-voltage memory and peripheral interconnects.

For engineers reviewing the PI3VT3306LE datasheet, PI3VT3306LE pinout, PI3VT3306LE application, or PI3VT3306LE equivalent, key selection criteria include verified level-shifting capability across two independent bit-pairs, guaranteed disconnect behavior under high-impedance control, low R_ON for signal integrity in high-speed digital buses, and Pb-free TSSOP-8 packaging compliance.

Technical Context

The PI3VT3306LE implements dual independent analog switches with CMOS transmission-gate topology, each controlled by a dedicated active-low Bus Enable (BE) input. Its voltage translation arises from supply-referenced output clamping-not active regulation-enabling pass-through of logic levels scaled by V_CC (e.g., 3.3V input → 2.5V output when V_CC = 2.5V).

Switching is governed solely by BE state: logic LOW enables bidirectional conduction between A and B ports; logic HIGH forces both ports into high-impedance. No internal level-shifting circuitry is present-the translation is inherent to the FET threshold and supply rail selection.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Supply Range	2.5V ±0.2V or 3.3V ±0.3V - defines valid operating rails for translation direction and R_ON performance
R_ON (typ)	5Ω at V_CC = 3.3V, I_ON = –8mA - ensures minimal voltage drop and signal distortion in 50Ω–100Ω digital buses
t_PLH/t_PHL	0.25ns (CL = 50pF, RL = 500Ω) - contributes negligible delay beyond trace RC, preserving timing margins in DDR/PCIe-adjacent paths
Input Capacitance	3.5pF - limits capacitive loading on driving source, critical for fanout and edge rate preservation
Max Output Current	±120mA per channel - supports robust drive into moderate capacitive loads without latch-up or thermal derating
Operating Temp	–40°C to +85°C ambient - validated for industrial-grade embedded controller and storage interface applications

Pinout & Package

PI3VT3306LE is packaged in Pb-free, RoHS-compliant 8-pin TSSOP (173-mil width), with 0.65mm pitch and exposed pad not electrically connected.

Pin/Terminal	Circuit Role	Design Meaning
BEn (BE1, BE2)	Active-low bus enable control input	Drives corresponding A/B pair into high-Z when HIGH; enables bidirectional conduction when LOW
A1, A2	Port A data terminal	One side of each switch channel; connects to upstream logic (e.g., 3.3V CPU bus)
B1, B2	Port B data terminal	Other side of each switch channel; connects to downstream device (e.g., 2.5V memory)
V_CC	Positive supply rail	Sets output voltage translation level and powers internal gate drive; must match target domain voltage
GND	Ground reference	Common return path for all signals and supply; requires low-inductance connection to minimize noise coupling

Key Features

Feature	Design Value
Bidirectional voltage translation	Supports 3.3V ↔ 2.5V and 2.5V ↔ 1.8V level shifting without direction control pins or external biasing
Low on-resistance (5Ω typ)	Maintains signal rise/fall times and reduces insertion loss in high-speed parallel buses up to 100MHz
Sub-nanosecond propagation delay	0.25ns delay adds no measurable timing skew in synchronous interfaces like address/data multiplexing
Independent dual-channel control	BE1 and BE2 allow selective enabling/disabling of each bit-pair, enabling dynamic bus segmentation
Pb-free & Green packaging	TSSOP-8 meets JEDEC MS-012, RoHS 2011/65/EU, and IPC/JEDEC J-STD-020 reflow profile requirements

Applications

DDR Memory Interface

PCI Express Slot Adapter

Use Scenario: Interfacing a 3.3V host controller with 2.5V DDR SDRAM modules where address/control lines require level translation.

IC Role / Device Role / Timing Role: Bidirectional bus switch translating control signals while preserving timing integrity and minimizing added skew.

Use Value: Eliminates need for discrete resistor-divider networks or dedicated level translators, reducing BOM count and board area.

Use Scenario: Enabling hot-plug detection and configuration signaling between 3.3V PCIe root complex and 1.8V add-in card peripherals.

IC Role / Device Role / Timing Role: Isolating and translating sideband signals (e.g., PERST#, WAKE#) with sub-ns delay and rail-to-rail logic compatibility.

Use Value: Ensures reliable reset sequencing and wake event propagation across voltage domains without timing violations.

Industrial PLC I/O Module

Embedded Flash Memory Subsystem

Use Scenario: Level-shifting GPIO and serial interface lines between 3.3V microcontroller and legacy 2.5V sensor ASICs in programmable logic controllers.

IC Role / Device Role / Timing Role: Providing galvanically isolated signal routing via high-impedance disable state during firmware updates or fault conditions.

Use Value: Enables safe, software-controlled isolation of I/O banks without external MOSFETs or optocouplers.

Use Scenario: Connecting 2.5V NAND flash to a 1.8V SoC in portable medical devices where power efficiency and signal fidelity are critical.

IC Role / Device Role / Timing Role: Acting as a low-latency, low-R_ON bridge for command/address/data lines with simultaneous enable/disable per bit-pair.

Use Value: Reduces standby current leakage and improves write-cycle timing margin compared to passive translation solutions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar bidirectional voltage translation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74AVC2T244RSE	Direction-controlled (DIR pin required); higher R_ON (10Ω typ); supports 1.2V–3.6V V_CC	Requires additional control logic; unsuitable for true bidirectional passive translation	Choose only if direction-aware buffering is needed alongside translation
TXS0102DCUR	Auto-direction sensing; higher propagation delay (12ns); lower drive strength (±8mA)	Designed for I²C/SMBus; not rated for high-speed parallel bus operation	Use only for low-frequency, open-drain protocols-not for address/data buses

Compared with SN74AVC2T244RSE and TXS0102DCUR, PI3VT3306LE uniquely delivers true bidirectional, zero-direction-control translation with sub-ns delay and 120mA drive-making it optimal for high-speed parallel interfaces where timing and simplicity are critical.

Availability

PI3VT3306LE is available at Aetrix Electronics and suitable for DDR memory interface design, PCIe slot adapter development, and industrial PLC I/O module production requiring stable component supply and long-term manufacturability.

Supply support for PI3VT3306LE 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-performance interface and signal-integrity portfolio into broad mixed-signal solutions.

The PI3VT3306LE belongs to Pericom's legacy bus switch family, engineered specifically for low-latency, rail-to-rail voltage translation in multi-voltage digital systems-targeting memory subsystems, FPGA I/O expansion, and industrial control backplanes.

FAQ

What voltage translation combinations does PI3VT3306LE support?

PI3VT3306LE supports two translation modes: 3.3V ↔ 2.5V (with V_CC = 2.5V) and 2.5V ↔ 1.8V (with V_CC = 1.8V). It does not support 3.3V ↔ 1.8V directly. Translation occurs passively via the switch FET's conduction characteristics and is bidirectional without direction control.

Can PI3VT3306LE be used with mismatched input/output voltage rails?

Yes-its architecture allows inputs from one rail (e.g., 3.3V) to drive outputs referenced to another (e.g., 2.5V), provided V_CC matches the target output rail. The device does not regulate; output voltage equals the driven rail minus small R_ON drop, confirmed at ≤0.2V under 8mA load.

Is PI3VT3306LE compatible with hot-swap or partial-power-down scenarios?

Yes-its absolute maximum ratings include –0.5V to +5.5V DC input voltage and –0.5V to +4.6V supply range. With proper power sequencing (V_CC applied before signals), it withstands live insertion and supports I/O isolation during partial system shutdown via BE control.

Does PI3VT3306LE require external pull-up or pull-down resistors?

A pull-up resistor on each BE pin is recommended for power-up protection to ensure default high-impedance state, per datasheet Note 2. No pull resistors are needed on A/B ports-signal integrity relies on source termination and controlled trace impedance, not external biasing.

PI3VT3306LE Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 8-TSSOP (0.173", 4.40mm Width)

Packaging:: Tube

Product Status:: Active

Type:: Bus Switch

Circuit:: 1 x 1:1

Independent Circuits:: 2

Current - Output High, Low:: -

Voltage Supply Source:: Single Supply

Voltage - Supply:: 2.3V ~ 2.7V, 3V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-TSSOP

PI3VT3306LE FAQ

1.How can I place an order for PI3VT3306LE through Aetrix?

Please submit a Request for Quotation (RFQ) for PI3VT3306LE 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 PI3VT3306LE reliable?

The price and inventory of PI3VT3306LE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3VT3306LE is usually 5 days.

3.What payment methods are accepted for PI3VT3306LE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3VT3306LE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PI3VT3306LE?

PI3VT3306LE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PI3VT3306LE 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 PI3VT3306LE?

For technical support, including PI3VT3306LE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3VT3306LE requirements.

6.How does Aetrix verify that PI3VT3306LE is sourced from the original manufacturer or authorized distributors?

All PI3VT3306LE 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 PI3VT3306LE meets industry standards.

7.What is the process for return or replacement of PI3VT3306LE?

All PI3VT3306LE units undergo pre-shipment inspection (PSI). If there is an issue with PI3VT3306LE, 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 PI3VT3306LE part is unused and in its original packaging.

Return procedure for PI3VT3306LE:

1.Submit a request within 90 days.

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

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