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Home > Products > Integrated Circuits (ICs) > Logic > Translators, Level Shifters

Diodes Incorporated PI74LVCC3245ALE

Name: PI74LVCC3245ALE
Brand: Diodes Incorporated
SKU: PI74LVCC3245ALE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PI74LVCC3245ALE

Manufacturer:: Diodes Incorporated

Category:: Translators, Level Shifters

Package:

Datasheet:: PI74LVCC3245ALE.pdf

Description:: IC TRANSLATOR BIDIR 24TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:4,167

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Product details

Overview

PI74LVCC3245ALE from Pericom Semiconductor is an 8-bit non-inverting dual-supply bidirectional bus transceiver with independent A-port (VCCA = 2.7–3.6 V) and B-port (VCCB = 3–5.5 V) rails, DIR-controlled data direction, OE-enabled 3-state outputs, and logic-level translation between 3.3 V and 5 V systems in industrial temperature range (–40°C to +85°C).

For engineers reviewing the PI74LVCC3245ALE datasheet, PI74LVCC3245ALE pinout, PI74LVCC3245ALE application, or PI74LVCC3245ALE equivalent, key selection criteria include dual-rail voltage tolerance, propagation delay ≤7.2 ns (A→B, VCCB = 3.3 V), 3-state leakage ≤±5 µA, latch-up immunity >200 mA, and Pb-free TSSOP-24 package compatibility with automated SMT assembly.

Technical Context

The device implements asynchronous bidirectional data flow via a single DIR pin that configures signal path direction (A↔B), while OE independently places both ports in high-impedance state. Control logic operates referenced to VCCA, enabling robust interface with 3.3 V controllers even when B-port drives 5 V buses.

Each I/O port features independent voltage translation: A-port inputs accept 0–VCCA levels and drive VCCA-referenced outputs; B-port inputs accept 0–VCCB levels and drive VCCB-referenced outputs. Input thresholds scale dynamically with respective supply rails, ensuring noise margin compliance across full operating ranges.

Key Specifications

Parameter	Value and Actual Design Meaning
VCCA Range	2.7 V to 3.6 V - powers A-port logic and control pins (DIR, OE), sets A-side input thresholds and output swing
VCCB Range	3 V to 5.5 V - powers B-port I/O, enables direct interfacing with 3.3 V or 5 V legacy buses
tPLH / tPHL (A→B)	1 ns to 7.1 ns - ensures sub-8 ns latency for 3.3 V controller-to-5 V peripheral communication
IOZ (3-State Leakage)	±5 µA max - guarantees minimal bus loading during isolation, critical for multi-drop bus integrity
VIH/VIL (Control Pins)	VCCA-based thresholds (2.0 V/0.8 V min) - ensures reliable DIR/OE recognition by 3.3 V CMOS drivers
Latch-up Immunity	>200 mA per JESD78 - prevents destructive latch-up during supply sequencing or bus contention events
ESD Protection	2000 V HBM, 200 V MM - sustains handling and board-level ESD without functional degradation

Pinout & Package

PI74LVCC3245ALE is housed in a Pb-free, green-compatible 24-pin TSSOP (173-mil width, JEDEC MO-153), with 0.65 mm pitch, 0.1 mm max lead coplanarity, and 84°C/W junction-to-ambient thermal resistance.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6, 7, 8	B1–B8	B-port bidirectional I/O terminals - connect to 3.3 V or 5 V target bus; tolerate –0.5 V to VCCB + 0.5 V
9, 10, 11, 12, 13, 14, 15, 16	A1–A8	A-port bidirectional I/O terminals - interface with 3.3 V controller bus; tolerate –0.5 V to VCCA + 0.5 V
17	GND	Common reference for both power domains - must be low-inductance connection to avoid ground bounce
18	OE	Active-low 3-state enable - referenced to VCCA; asserts high-impedance on both A and B ports simultaneously
19	DIR	Direction control input - referenced to VCCA; HIGH routes A→B, LOW routes B→A
20	VCCA	A-port supply - powers internal logic, DIR/OE inputs, and A-side I/O circuitry
21	VCCB	B-port supply - powers B-side I/O drivers and receivers; independent of VCCA
22	NC	No internal connection - must remain unconnected; no pull-up/down required
23, 24	GND	Additional ground pins - reduce impedance and improve noise immunity in high-speed operation

Key Features

Feature	Design Value
Dual-supply level translation	Enables interoperability between 3.3 V microcontrollers and 5 V peripherals without external level shifters
Configurable output voltage	B-port outputs swing rail-to-rail (0 to VCCB), supporting TTL- and CMOS-compatible loads at either 3.3 V or 5 V
Low propagation skew	≤1.5 ns output-to-output skew - maintains data validity across all 8 bits during high-speed transfers
Industrial temperature support	–40°C to +85°C operation - qualified for use in factory automation, motor drives, and outdoor embedded systems
Pb-free & RoHS-compliant packaging	TSSOP-24 (L) package meets IPC/JEDEC J-STD-020 moisture sensitivity level 3 and reflow profile requirements

Applications

Industrial PLC Backplane Interface

Automotive Body Control Module (BCM)

Use Scenario: Interfacing a 3.3 V ARM Cortex-M4 CPU with legacy 5 V CAN transceivers and sensor ADCs on a modular I/O backplane.

IC Role / Device Role / Timing Role: Bidirectional voltage translator and bus isolator - routes command/data from CPU to peripherals and status feedback from sensors to CPU.

Use Value: Eliminates need for discrete level-shifting ICs, reducing BOM count and PCB area while maintaining <8 ns round-trip latency.

Use Scenario: Connecting a 3.3 V infotainment SoC to 5 V LIN transceivers and lamp driver ICs in a centralized body control unit.

IC Role / Device Role / Timing Role: Directional bus bridge - enables firmware-updatable configuration of LIN message routing and diagnostic response paths.

Use Value: Supports hot-swap-safe 3-state isolation during firmware updates, preventing bus contention on shared LIN lines.

Medical Imaging Data Acquisition

Test Equipment Digital I/O Subsystem

Use Scenario: Linking a 3.3 V FPGA-based image processor to 5 V analog front-end ADCs and DACs in portable ultrasound equipment.

IC Role / Device Role / Timing Role: Synchronized bidirectional data conduit - transfers digitized RF samples and timing calibration signals between domains.

Use Value: Delivers <7.2 ns A→B propagation delay and <1.5 ns inter-bit skew, preserving time-of-flight measurement accuracy.

Use Scenario: Integrating a 3.3 V microcontroller into a 5 V digital pattern generator's DUT interface board with programmable pin directionality.

IC Role / Device Role / Timing Role: Reconfigurable I/O expander - allows runtime switching between stimulus output and response capture modes on same physical pins.

Use Value: Enables single-board test fixture design for mixed-voltage DUTs, reducing fixture complexity and calibration overhead.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC4245APWR	Single VCC (3.3 V only); B-port tolerant to 5.5 V but not actively driven at 5 V	Requires external pull-ups for 5 V outputs; unsuitable for true 5 V drive strength	Select when only 5 V input tolerance (not output drive) is needed and cost is primary constraint
TXB0108PWR	Auto-direction sensing; no DIR pin; higher ICC (up to 80 µA per I/O) and slower tPHL (12 ns typical)	Eliminates direction control logic but adds latency and static current penalty	Select for simple glueless interfaces where direction changes infrequently and speed <10 MHz suffices

Compared with SN74LVC4245APWR and TXB0108PWR, PI74LVCC3245ALE uniquely delivers simultaneous 3.3 V → 5 V drive capability, sub-8 ns propagation, and industrial-grade latch-up immunity - making it optimal for deterministic, high-reliability bidirectional bridging in mixed-voltage embedded systems.

Availability

PI74LVCC3245ALE is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, medical imaging subsystems, and test equipment digital I/O requiring stable component supply, long-term lifecycle assurance, and Pb-free compliance.

Supply support for PI74LVCC3245ALE 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 (acquired by Diodes Incorporated in 2016) specialized in high-speed interface, timing, and signal-integrity solutions for communications, computing, and industrial markets.

The PI74LVC series targets low-voltage, high-speed logic interfacing - specifically engineered for voltage translation, bus isolation, and noise-immune data exchange in mixed-supply embedded systems.

FAQ

What is the maximum allowable voltage difference between VCCA and VCCB?

VCCA and VCCB may operate at any combination within their respective rated ranges (VCCA: 2.7–3.6 V; VCCB: 3–5.5 V), including simultaneous 3.3 V and 5 V. The absolute maximum rating specifies each supply may reach –0.5 V to +7 V independently, but functional operation requires both supplies to be within recommended ranges and powered in proper sequence (VCCA before VCCB, OE ramped with VCCA) to prevent bus contention.

Can PI74LVCC3245ALE drive a 50 Ω transmission line directly?

No - the device is designed for bus loading, not transmission-line driving. Its typical output drive strength is ±24 mA (VCCB = 3 V), optimized for stubbed multidrop buses with 500 Ω termination. For point-to-point 50 Ω traces, external series termination or dedicated line drivers are required to meet signal integrity requirements.

Is the NC pin electrically isolated or internally tied?

Pin 22 is a true no-connect: no internal bond wire, no silicon connection, and no electrical function. It must remain unconnected on the PCB. Routing traces or applying solder paste to this pad violates JEDEC MO-153 mechanical specifications and risks shorting adjacent pins due to solder wicking.

How does OE assertion affect power consumption during sleep mode?

When OE is HIGH, both A and B ports enter high-impedance state, reducing ICCA and ICCB to ≤10 µA each (typical). This quiescent current remains stable across temperature and supply variations, enabling predictable low-power sleep behavior in battery-backed or energy-sensitive applications without requiring VCCA/VCCB shutdown.

PI74LVCC3245ALE Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: 74LVCC

Package/Case:

Packaging:: Tube

Product Status:: Obsolete

Translator Type:: Voltage Level

Channel Type:: Bidirectional

Number of Circuits:: 1

Channels per Circuit:: 8

Voltage - VCCA:: 2.7 V ~ 3.6 V

Voltage - VCCB:: 3 V ~ 5.5 V

Input Signal:: -

Output Signal:: -

Output Type:: Tri-State, Non-Inverted

Data Rate:: -

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Features:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 24-TSSOP (0.173", 4.40mm Width)

PI74LVCC3245ALE FAQ

1.How can I place an order for PI74LVCC3245ALE through Aetrix?

Please submit a Request for Quotation (RFQ) for PI74LVCC3245ALE 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 PI74LVCC3245ALE reliable?

The price and inventory of PI74LVCC3245ALE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74LVCC3245ALE is usually 5 days.

3.What payment methods are accepted for PI74LVCC3245ALE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74LVCC3245ALE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PI74LVCC3245ALE?

PI74LVCC3245ALE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PI74LVCC3245ALE 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 PI74LVCC3245ALE?

For technical support, including PI74LVCC3245ALE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74LVCC3245ALE requirements.

6.How does Aetrix verify that PI74LVCC3245ALE is sourced from the original manufacturer or authorized distributors?

All PI74LVCC3245ALE 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 PI74LVCC3245ALE meets industry standards.

7.What is the process for return or replacement of PI74LVCC3245ALE?

All PI74LVCC3245ALE units undergo pre-shipment inspection (PSI). If there is an issue with PI74LVCC3245ALE, 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 PI74LVCC3245ALE part is unused and in its original packaging.

Return procedure for PI74LVCC3245ALE:

1.Submit a request within 90 days.

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

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