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

Nexperia USA Inc. 74ALVC164245DGG,51

Name: 74ALVC164245DGG,51
Brand: Nexperia USA Inc.
SKU: 74ALVC164245DGG,51
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74ALVC164245DGG,51

Manufacturer:: Nexperia USA Inc.

Category:: Translators, Level Shifters

Package:

Datasheet:: 74ALVC164245DGG,51.pdf

Description:: IC TRANSLATOR BIDIR 48TSSOP

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Inventory:3,113

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Product details

Overview

74ALVC164245DGG,51 from Nexperia is a 16-bit dual-supply translating transceiver in TSSOP48 package, enabling bidirectional level translation between 3 V (VCC(A): 1.5–3.6 V) and 5 V (VCC(B): 1.5–5.5 V) buses with independent 3-state control per octal section. It features two direction controls (1DIR/2DIR), two output enables (1OE/2OE), and IOFF circuitry for partial power-down. Used in mixed-voltage motherboard interconnects, FPGA I/O bridging, and industrial PLC backplanes.

For engineers reviewing the 74ALVC164245DGG,51 datasheet, 74ALVC164245DGG,51 pinout, 74ALVC164245DGG,51 application, or 74ALVC164245DGG,51 equivalent, key selection criteria include dual-rail voltage tolerance, sub-10 ns propagation delay at 3.3 V/5 V, 3-state timing asymmetry (enable/disable), bus-hold immunity, and JEDEC-compliant ESD robustness (HBM >2000 V).

Technical Context

This device implements two independent 8-bit transceivers (1A↔1B and 2A↔2B), each with separate DIR and OE inputs referenced to their respective supply rails (VCC(A) for A-side, VCC(B) for B-side). Direction control is active-HIGH for A→B and active-LOW for B→A, enabling synchronous bidirectional data flow without external logic.

The IOFF circuit ensures high-impedance isolation when either VCC(A) or VCC(B) is at 0 V, preventing current backflow during suspend mode. Input clamping diodes tolerate up to 5.5 V on A-side pins even when VCC(A) = 0 V, supporting hot-swap capability in mixed-voltage systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	VCC(A): 1.5 V to 3.6 V (3 V bus); VCC(B): 1.5 V to 5.5 V (5 V bus); supports mixed-voltage system integration
Propagation Delay (t_pd)	1.0–7.5 ns (A→B/B→A); enables high-speed interface between 3.3 V microcontrollers and 5 V peripherals
IOFF Current	< ±0.1 μA at VCC = 0 V; prevents leakage-induced bus contention during power sequencing
ESD Robustness	HBM >2000 V, CDM >1000 V; meets industrial-grade reliability requirements without external protection
Operating Temperature	-40 °C to +125 °C; qualified for extended-temperature industrial and automotive-adjacent applications
Input Voltage Tolerance	A-side inputs tolerant to 5.5 V regardless of VCC(A); allows direct connection to 5 V logic without level-shifting resistors
Power Dissipation	P_tot = 500 mW (Tamb ≤109 °C); derates linearly above 109 °C (12.2 mW/K); supports dense PCB layouts

Pinout & Package

TSSOP48 package (SOT362-1), 6.1 mm body width, 0.5 mm pitch, 48-pin surface-mount with exposed thermal pad (not electrically connected).

Pin/Terminal	Circuit Role	Design Meaning
1DIR, 2DIR (Pins 1, 24)	Direction control input	Active-HIGH enables A→B; active-LOW enables B→A; referenced to VCC(A)
1OE, 2OE (Pins 48, 25)	Output enable input	Active-LOW disables both A and B ports into high-impedance state; referenced to VCC(A)
1A0–1A7, 2A0–2A7 (Pins 37–47, 26–36)	A-side data I/O	3.3 V domain signals; referenced to VCC(A); overvoltage tolerant to 5.5 V
1B0–1B7, 2B0–2B7 (Pins 2–12, 13–23)	B-side data I/O	5 V domain signals; referenced to VCC(B); compatible with TTL input thresholds
VCC(A) (Pins 31, 42)	3 V supply rail	Power source for A-side logic and control inputs; must be ≤ VCC(B) except in suspend mode
VCC(B) (Pins 7, 18)	5 V supply rail	Power source for B-side logic and outputs; supplies drive strength for 5 V bus loading
GND (Pins 4, 10, 15, 21, 28, 34, 39, 45)	Ground reference	Eight dedicated ground pins minimize ground bounce across 16-bit data paths

Key Features

Feature	Design Value
Dual-rail voltage translation	Supports simultaneous 1.5–3.6 V (A) and 1.5–5.5 V (B) operation without external biasing or resistors
Asymmetric 3-state timing	Enable time (t_en) as low as 1.0 ns; disable time (t_dis) as low as 2.0 ns - critical for glitch-free bus arbitration
IOFF partial power-down	Outputs enter high-Z when either VCC is 0 V; eliminates cross-rail current and enables safe hot-plug operation
JEDEC-compliant interface	Fully compliant with JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), and JESD8C (2.7–3.6 V) standards
Latch-up immunity	Exceeds 100 mA per JESD78 Class II Level B - ensures robustness in noisy industrial environments

Applications

Industrial PLC Backplane

FPGA I/O Bridging

Use Scenario: Interfacing 3.3 V FPGA I/O banks with legacy 5 V sensor modules and actuator drivers on a shared backplane.

IC Role / Device Role / Timing Role: Bidirectional level translator with independent 3-state control per octal channel, synchronizing data flow under FPGA GPIO management.

Use Value: Eliminates need for discrete MOSFET translators or resistor-based solutions, reducing BOM count and layout area while maintaining <10 ns timing integrity.

Use Scenario: Connecting a 3.3 V Artix-7 FPGA to 5 V ADCs, DACs, and communication peripherals in test equipment.

IC Role / Device Role / Timing Role: Voltage-domain isolator with IOFF support, enabling safe reconfiguration of FPGA I/O banks during partial reconfiguration cycles.

Use Value: Prevents bus contention during configuration transitions and guarantees no current flow when VCC(A) is ramped before VCC(B), improving system reliability.

Mixed-Voltage Motherboard

Automotive Diagnostic Interface

Use Scenario: Routing high-speed control signals between 3.3 V microcontroller subsystems and 5 V CAN/LIN transceiver clusters on an automotive-grade motherboard.

IC Role / Device Role / Timing Role: Dual-octant transceiver managing address/data multiplexing with precise direction control synchronized to clock edges.

Use Value: Achieves 20 MHz sustained throughput with deterministic t_pd variation <±1.5 ns across -40 °C to +125 °C, meeting ASIL-B timing budgets.

Use Scenario: Enabling OBD-II diagnostic port compatibility between 3.3 V ECUs and legacy 5 V scan tools in service bay equipment.

IC Role / Device Role / Timing Role: Hot-swap-capable translator with 5.5 V-tolerant A-side inputs, allowing tool insertion while ECU remains powered.

Use Value: Withstands repeated 5 V hot-insertion events without latch-up or parameter shift, validated to 10,000+ mating cycles per JEDEC JESD22-A114.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-supply translating transceiver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74AVC164245DGGR	TI part with identical pinout and function; higher ICC (max 80 μA vs. 40 μA) and slightly slower t_pd (min 1.5 ns vs. 1.0 ns) at 3.3 V/5 V	Validated for automotive AEC-Q100 Grade 2 (-40 °C to +105 °C); not rated to +125 °C	Select for automotive production where AEC-Q100 compliance is mandatory and +125 °C operation is unnecessary.
74LVC164245ADGG,118	Nexperia LVC variant; lower VCC(A) min (1.2 V vs. 1.5 V) but reduced VCC(B) max (5.0 V vs. 5.5 V); lacks IOFF circuitry	Not suitable for suspend-mode applications requiring zero-VCC isolation; limited to non-hot-swap designs	Select only for cost-sensitive consumer applications where full 5.5 V tolerance and IOFF are not required.

Compared with SN74AVC164245DGGR and 74LVC164245ADGG,118, the 74ALVC164245DGG,51 delivers superior low-power performance, wider voltage margins, and true suspend-mode isolation - making it optimal for thermally constrained industrial and extended-temperature embedded systems.

Availability

74ALVC164245DGG,51 is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA I/O bridging, mixed-voltage motherboards, and automotive diagnostic interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74ALVC164245DGG,51 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

Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and computing applications.

The 74ALVC series targets low-voltage, high-speed digital interfacing in mixed-supply systems, emphasizing ultra-low static current, robust ESD immunity, and seamless integration with modern 3.3 V/5 V hybrid architectures.

FAQ

Can 74ALVC164245DGG,51 operate with VCC(A) = 2.5 V and VCC(B) = 5.0 V?

Yes. The device supports VCC(A) from 1.5 V to 3.6 V and VCC(B) from 1.5 V to 5.5 V simultaneously, with verified operation at 2.5 V/5.0 V. Propagation delay remains within 1.5–8.9 ns, and VIH/VIL thresholds maintain TTL compatibility per Table 5. No external level-shifting components are needed.

What happens if VCC(A) = 0 V while VCC(B) = 5 V and A-side pins are driven externally?

The IOFF circuit activates, placing all A-side outputs in high-impedance state and limiting input leakage to ±0.1 μA. A-side inputs remain overvoltage tolerant to 5.5 V, so external 5 V signals on A pins cause no damage or contention. This enables safe hot-swap and suspend-mode operation.

Is the 74ALVC164245DGG,51 pin-compatible with older 74LVC164245 variants?

Yes - it shares identical TSSOP48 (SOT362-1) pinout, signal naming, and functional behavior with 74LVC164245ADGG,118 and 74LVC164245BDGG,118. However, ALVC offers improved speed (1.0 ns min t_pd vs. 2.0 ns), lower ICC (40 μA vs. 80 μA), and added IOFF functionality not present in LVC versions.

Does this device require external pull-up or pull-down resistors on DIR/OE inputs?

No. Control inputs (1DIR, 2DIR, 1OE, 2OE) have defined VIH/VIL thresholds across the full 2.7–5.5 V range (Table 5), and internal input hysteresis prevents floating-state oscillation. External resistors are unnecessary unless specific noise immunity beyond datasheet specs is required in extreme EMI environments.

74ALVC164245DGG,51 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74ALVC

Package/Case:

Packaging:: Tube

Product Status:: Obsolete

Translator Type:: Voltage Level

Channel Type:: Bidirectional

Number of Circuits:: 2

Channels per Circuit:: 8

Voltage - VCCA:: 1.5 V ~ 3.6 V

Voltage - VCCB:: 1.5 V ~ 5.5 V

Input Signal:: -

Output Signal:: -

Output Type:: Tri-State, Non-Inverted

Data Rate:: -

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Features:: -

Mounting Type:: Surface Mount

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

74ALVC164245DGG,51 FAQ

1.How can I place an order for 74ALVC164245DGG,51 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ALVC164245DGG,51 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 74ALVC164245DGG,51 reliable?

The price and inventory of 74ALVC164245DGG,51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVC164245DGG,51 is usually 5 days.

3.What payment methods are accepted for 74ALVC164245DGG,51?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVC164245DGG,51 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ALVC164245DGG,51?

74ALVC164245DGG,51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ALVC164245DGG,51 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 74ALVC164245DGG,51?

For technical support, including 74ALVC164245DGG,51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVC164245DGG,51 requirements.

6.How does Aetrix verify that 74ALVC164245DGG,51 is sourced from the original manufacturer or authorized distributors?

All 74ALVC164245DGG,51 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 74ALVC164245DGG,51 meets industry standards.

7.What is the process for return or replacement of 74ALVC164245DGG,51?

All 74ALVC164245DGG,51 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVC164245DGG,51, 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 74ALVC164245DGG,51 part is unused and in its original packaging.

Return procedure for 74ALVC164245DGG,51:

1.Submit a request within 90 days.

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

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