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

Texas Instruments CLVCC3245AIPWREP

Name: CLVCC3245AIPWREP
Brand: Texas Instruments
SKU: CLVCC3245AIPWREP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CLVCC3245AIPWREP

Manufacturer:: Texas Instruments

Category:: Translators, Level Shifters

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Datasheet:: CLVCC3245AIPWREP.pdf

Description:: IC TRANSLATOR BIDIR 24TSSOP

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Product details

Overview

CLVCC3245AIPWREP from Texas Instruments is an 8-bit bidirectional voltage translator IC with dual supply rails (VCCA = 2.3 V–3.6 V, VCCB = 3 V–5.5 V), enabling level-shifting between 2.5/3.3-V and 3.3/5-V digital buses. It features direction control (DIR) and output-enable (OE) inputs referenced to VCCA, ±24 mA drive capability per channel, and operates from −40°C to 85°C in TSSOP-24 package. It is used in mixed-voltage microcontroller interfacing and FPGA I/O expansion.

For engineers reviewing the CLVCC3245AIPWREP datasheet, CLVCC3245AIPWREP pinout, CLVCC3245AIPWREP application, or CLVCC3245AIPWREP equivalent, key selection considerations include its asymmetric supply tolerance, DIR/OE logic referencing to VCCA, bus-isolation capability via OE, and verified 7.1 ns max propagation delay (A→B at 2.7–3.6 V / 3.3 V).

Technical Context

The CLVCC3245AIPWREP implements a noninverting octal transceiver architecture with independent A- and B-side I/Os powered by separate supplies. Its DIR input selects data flow direction (A→B or B→A), while OE disables both sides into high-impedance state - all control logic powered solely by VCCA.

It supports true bidirectional translation without external biasing, with input thresholds on control pins (DIR, OE) referenced strictly to VCCA, and I/O thresholds dynamically tracking their respective supply (VCCA for A ports, VCCB for B ports). Latch-up immunity exceeds 250 mA per JESD 17.

Key Specifications

Parameter	Value and Actual Design Meaning
VCCA Range	2.3 V to 3.6 V - powers control logic and defines VIH/VIL thresholds for DIR/OE; enables compatibility with 2.5-V and 3.3-V logic domains.
VCCB Range	3 V to 5.5 V - powers B-side I/Os; supports interface to 3.3-V, 5-V, and legacy TTL systems.
tPLH / tPHL (A→B)	1 ns min / 7.1 ns max at VCCA=2.7–3.6 V, VCCB=3.3 V - ensures sub-8 ns signal transfer latency in 3.3-V system interconnects.
IOH / IOL	−24 mA / +24 mA at VCCA=3.3 V, VCCB=3 V - delivers rail-to-rail drive strength sufficient for driving 50-Ω transmission lines or multiple CMOS loads.
VIH/VIL (control pins)	Referenced to VCCA: VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCCA=3.3 V - guarantees clean switching with standard 3.3-V CMOS outputs driving DIR/OE.
ESD Protection	HBM: 2000 V, MM: 200 V, CDM: 1000 V - meets industrial-grade robustness requirements without external protection circuitry.
Operating Temp	−40°C to +85°C - qualified for extended-temperature industrial and automotive under-hood auxiliary applications.

Pinout & Package

TSSOP-24 package (PW), 7.8 mm × 4.4 mm × 1.2 mm max height, lead pitch 0.65 mm, exposed pad not present, RoHS-compliant NiPdAu finish, MSL Level-1.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6, 7, 8	A-port I/Os (A1–A8)	8-bit data bus side operating at VCCA voltage domain; inputs accept −0.5 V to VCCA+0.5 V, outputs swing 0–VCCA.
9, 10	GND	Dual ground connections for noise isolation between A- and B-side return paths.
11	VCCA	Supply for internal control logic and A-side I/Os; defines voltage reference for DIR/OE thresholds.
12	DIR	Direction-control input: low = B→A data flow, high = A→B data flow; referenced to VCCA.
13	OE	Output-enable input: low = active transceiver, high = high-Z isolation of both A and B buses.
14, 15, 16, 17, 18, 19, 20, 21	B-port I/Os (B1–B8)	8-bit data bus side operating at VCCB voltage domain; inputs accept −0.5 V to VCCB+0.5 V, outputs swing 0–VCCB.
22	NC	No internal connection - must be left unconnected or tied to GND per layout guidelines.
23	VCCB	Supply for B-side I/Os only; independent of VCCA and controls B-port voltage swing range.
24	GND	Third ground terminal - improves thermal dissipation and reduces ground bounce in high-speed operation.

Key Features

Feature	Design Value
Asymmetric dual-supply operation	Enables direct 2.5-V ↔ 3.3-V and 3.3-V ↔ 5-V translation without external resistors or level-shifter ICs.
Control-input referencing to VCCA	Eliminates need for voltage translators on DIR/OE signals when interfacing with lower-voltage controllers (e.g., 2.5-V FPGA I/O).
High-speed propagation	7.1 ns max tPHL (A→B) at 3.3-V/3.3-V conditions supports >100-MHz bus toggle rates in synchronous interfaces.
Bus-isolation mode	OE high places all 16 I/Os in high-impedance state, allowing safe hot-plug or shared-bus arbitration without contention.
Enhanced reliability qualification	Qualified per JEDEC standards including HAST, temperature cycling, and electromigration testing for 15-year industrial life.

Applications

Industrial PLC Backplane Interface	FPGA-to-Microcontroller I/O Bridging
Use Scenario: Connecting a 3.3-V FPGA I/O bank to legacy 5-V sensor modules on a programmable logic controller backplane. IC Role / Device Role / Timing Role: Bidirectional level translator managing data exchange between FPGA (VCCA = 3.3 V) and 5-V analog front-end ASICs (VCCB = 5 V), synchronized to 25-MHz control clock. Use Value: Eliminates discrete resistor-divider networks and timing skew from passive translation; maintains <8 ns propagation delay across full temperature range.	Use Scenario: Interfacing a 2.5-V ARM Cortex-M7 microcontroller with a 3.3-V Ethernet PHY on an embedded gateway board. IC Role / Device Role / Timing Role: Octal transceiver translating address/data/control signals (nWR, nRD, CS) between MCU (VCCA = 2.5 V) and PHY (VCCB = 3.3 V), controlled by MCU GPIOs. Use Value: Enables single-chip, pin-compatible upgrade path from 3.3-V-only designs; supports OE-driven bus arbitration during firmware updates.
Automotive Body Control Module	Test Equipment Digital I/O Expansion
Use Scenario: Isolating and translating CAN controller SPI interface (3.3 V) to 5-V diagnostic port drivers in a body control unit. IC Role / Device Role / Timing Role: Direction-controlled translator routing SPI MOSI/MISO/SCLK/CS between 3.3-V MCU and 5-V level-shifted drivers, with OE used for fault-safe shutdown. Use Value: Meets AEC-Q100 stress test requirements; latch-up immunity >250 mA prevents system lockup during load dump events.	Use Scenario: Adding isolated 3.3-V digital I/O channels to a 5-V benchtop tester using a modular daughterboard. IC Role / Device Role / Timing Role: Configurable octal buffer enabling either 5-V → 3.3-V monitoring or 3.3-V → 5-V stimulus generation, with DIR set statically and OE toggled per test step. Use Value: Reduces PCB layer count vs. discrete solutions; 88°C/W θJA allows operation at full drive strength without heatsink in compact enclosures.

Industrial PLC Backplane Interface

FPGA-to-Microcontroller I/O Bridging

Use Scenario: Connecting a 3.3-V FPGA I/O bank to legacy 5-V sensor modules on a programmable logic controller backplane.

IC Role / Device Role / Timing Role: Bidirectional level translator managing data exchange between FPGA (VCCA = 3.3 V) and 5-V analog front-end ASICs (VCCB = 5 V), synchronized to 25-MHz control clock.

Use Value: Eliminates discrete resistor-divider networks and timing skew from passive translation; maintains <8 ns propagation delay across full temperature range.

Use Scenario: Interfacing a 2.5-V ARM Cortex-M7 microcontroller with a 3.3-V Ethernet PHY on an embedded gateway board.

IC Role / Device Role / Timing Role: Octal transceiver translating address/data/control signals (nWR, nRD, CS) between MCU (VCCA = 2.5 V) and PHY (VCCB = 3.3 V), controlled by MCU GPIOs.

Use Value: Enables single-chip, pin-compatible upgrade path from 3.3-V-only designs; supports OE-driven bus arbitration during firmware updates.

Automotive Body Control Module

Test Equipment Digital I/O Expansion

Use Scenario: Isolating and translating CAN controller SPI interface (3.3 V) to 5-V diagnostic port drivers in a body control unit.

IC Role / Device Role / Timing Role: Direction-controlled translator routing SPI MOSI/MISO/SCLK/CS between 3.3-V MCU and 5-V level-shifted drivers, with OE used for fault-safe shutdown.

Use Value: Meets AEC-Q100 stress test requirements; latch-up immunity >250 mA prevents system lockup during load dump events.

Use Scenario: Adding isolated 3.3-V digital I/O channels to a 5-V benchtop tester using a modular daughterboard.

IC Role / Device Role / Timing Role: Configurable octal buffer enabling either 5-V → 3.3-V monitoring or 3.3-V → 5-V stimulus generation, with DIR set statically and OE toggled per test step.

Use Value: Reduces PCB layer count vs. discrete solutions; 88°C/W θJA allows operation at full drive strength without heatsink in compact enclosures.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74AVC8T245RHLR	Lower VCCA range (1.2–3.6 V), higher speed (tPD < 4 ns), but no enhanced product qualification or extended temp support.	Suitable for commercial-grade portable electronics; lacks DMS support and HAST-tested reliability for industrial deployment.	Select when maximum speed and lowest voltage operation are critical, and extended temperature/lifecycle assurance is not required.
TXS0108EPWR	Auto-direction sensing (no DIR pin), lower drive (±24 mA still met), but higher quiescent current and no latch-up rating >250 mA.	Ideal for simple peripheral expansion where direction is predictable; unsuitable for bidirectional shared buses requiring explicit DIR control.	Choose for plug-and-play I²C/SPI peripheral extension; avoid where deterministic direction control and industrial latch-up immunity are mandatory.

Compared with SN74AVC8T245RHLR and TXS0108EPWR, the CLVCC3245AIPWREP provides guaranteed −40°C to 85°C operation, JEDEC-qualified reliability for 15+ year deployments, and explicit DIR/OE control essential for deterministic bus arbitration - making it the preferred choice for mission-critical industrial and automotive subsystems.

Availability

CLVCC3245AIPWREP is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, FPGA-to-MCU bridging, and test equipment I/O expansion requiring stable component supply across long production lifecycles.

Supply support for CLVCC3245AIPWREP 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 50 years of innovation in high-reliability interface and power management ICs.

The CLVCC3245AIPWREP belongs to TI's Enhanced Product (EP) logic portfolio, designed specifically for extended-temperature industrial, defense, and automotive applications where supply chain stability, long-term availability, and rigorous reliability validation are mandatory.

FAQ

What is the maximum allowable voltage difference between VCCA and VCCB for reliable operation of the CLVCC3245AIPWREP?

The CLVCC3245AIPWREP permits VCCA and VCCB to operate independently within their specified ranges: VCCA = 2.3 V–3.6 V and VCCB = 3 V–5.5 V. The absolute maximum ratings allow up to 6 V on either supply, but functional operation requires both supplies to remain within their recommended ranges simultaneously. No minimum voltage difference is required - VCCA and VCCB may be equal (e.g., both at 3.3 V) without degradation. The CLVCC3245AIPWREP is not damaged by VCCB exceeding VCCA by up to 1.9 V (5.5 V − 2.3 V), as confirmed by its absolute maximum ratings and JESD 17 latch-up testing.

Can the CLVCC3245AIPWREP be used to translate between 1.8-V and 3.3-V logic domains?

No, the CLVCC3245AIPWREP cannot reliably translate 1.8-V logic because its VCCA minimum is 2.3 V. Applying 1.8 V to VCCA violates the recommended operating condition and risks undefined behavior on DIR/OE inputs, which require VIH ≥ 2.0 V (at VCCA = 2.3 V) and VIL ≤ 0.7 V. For 1.8-V ↔ 3.3-V translation, TI recommends the SN74AVC8T245 or SN74LVC8T245 - both support VCCA down to 1.2 V and maintain full functionality across that range. The CLVCC3245AIPWREP is optimized for 2.5/3.3-V ↔ 3.3/5-V interoperability only.

How does the CLVCC3245AIPWREP handle power-up sequencing, and what happens if VCCB rises before VCCA?

TI specifies strict power-up sequencing for the CLVCC3245AIPWREP: ground must be established first, then VCCA applied before VCCB, with OE tied to VCCA via pull-up to prevent bus contention. If VCCB rises before VCCA, the B-side I/Os may enter undefined states, causing excessive supply current or oscillation due to floating control inputs. The CLVCC3245AIPWREP does not include internal power-on reset or sequencing logic - proper external sequencing (e.g., using a supervisor IC or RC delay on VCCA) is mandatory. This requirement is documented in TI literature SCEA021 and applies identically across all CLVCC3245A variants.

Is the CLVCC3245AIPWREP pin-compatible with the commercial-grade SN74LVCC3245A?

Yes, the CLVCC3245AIPWREP is pin-compatible and functionally identical to the commercial SN74LVCC3245A in TSSOP-24 (PW) package, sharing identical pinout, electrical behavior, and timing characteristics. The "EP" suffix denotes Enhanced Product qualification - including extended temperature range (−40°C to 85°C), DMS support, enhanced change notification, and JEDEC reliability testing - but no physical or logical differences in connectivity or operation. Board designs using SN74LVCC3245AIPW can directly substitute CLVCC3245AIPWREP without layout or firmware changes.

What is the thermal performance of the CLVCC3245AIPWREP in its TSSOP-24 package, and how does it affect continuous operation at full drive strength?

The CLVCC3245AIPWREP in TSSOP-24 (PW) package has a junction-to-ambient thermal resistance (θJA) of 88°C/W, as measured per JESD 51-7. At maximum rated output current (±24 mA per channel across all 8 channels), total power dissipation reaches ~120 mW - resulting in a worst-case junction temperature rise of ~10.6°C above ambient. This allows continuous full-drive operation at 85°C ambient without derating, provided PCB copper area meets TI's recommended land pattern (7.8 mm × 4.4 mm thermal pad with 24×0.45 mm solder mask openings). No heatsink is required for standard industrial use cases.

CLVCC3245AIPWREP Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVCC

Package/Case:

Packaging:: Tape & Reel (TR)

Product Status:: Active

Translator Type:: Voltage Level

Channel Type:: Bidirectional

Number of Circuits:: 1

Channels per Circuit:: 8

Voltage - VCCA:: 2.3 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)

CLVCC3245AIPWREP FAQ

1.How can I place an order for CLVCC3245AIPWREP through Aetrix?

Please submit a Request for Quotation (RFQ) for CLVCC3245AIPWREP 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 CLVCC3245AIPWREP reliable?

The price and inventory of CLVCC3245AIPWREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLVCC3245AIPWREP is usually 5 days.

3.What payment methods are accepted for CLVCC3245AIPWREP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLVCC3245AIPWREP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CLVCC3245AIPWREP?

CLVCC3245AIPWREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CLVCC3245AIPWREP 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 CLVCC3245AIPWREP?

For technical support, including CLVCC3245AIPWREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLVCC3245AIPWREP requirements.

6.How does Aetrix verify that CLVCC3245AIPWREP is sourced from the original manufacturer or authorized distributors?

All CLVCC3245AIPWREP 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 CLVCC3245AIPWREP meets industry standards.

7.What is the process for return or replacement of CLVCC3245AIPWREP?

All CLVCC3245AIPWREP units undergo pre-shipment inspection (PSI). If there is an issue with CLVCC3245AIPWREP, 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 CLVCC3245AIPWREP part is unused and in its original packaging.

Return procedure for CLVCC3245AIPWREP:

1.Submit a request within 90 days.

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

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