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NXP Semiconductors 74LVC16245ABQ,518
- Part No.:
- 74LVC16245ABQ,518
- Manufacturer:
- NXP Semiconductors
- Package:
- 60-UFQFN Dual Rows, Exposed Pad
- Datasheet:
-
74LVC16245ABQ,518.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 60HUQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,454
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Product details
Overview
74LVC16245ABQ,518 from NXP Semiconductors is a 16-bit non-inverting 3-state bus transceiver with dual direction (nDIR) and dual output enable (nOE) controls, operating from 1.2 V to 3.6 V supply, 5 V tolerant I/O, and rated for −40 °C to +125 °C. It supports mixed-voltage interfacing between 3.3 V and 5 V systems in memory expansion, peripheral bridging, and data bus isolation applications.
For engineers reviewing the 74LVC16245ABQ,518 datasheet, 74LVC16245ABQ,518 pinout, 74LVC16245ABQ,518 application, or 74LVC16245ABQ,518 equivalent, key selection criteria include its HXQFN60U thermal-enhanced package, 5 V tolerance on all I/O pins, dual independent direction/enable control, bus-isolation capability, and compatibility with JEDEC JESD8-B/JESD36 standards.
Technical Context
This device implements two independent 8-bit bidirectional data paths controlled by separate nDIR and nOE inputs per side, enabling flexible cascading and asymmetric bus flow. Its CMOS design ensures low static current (≤40 μA at VCC = 3.6 V) and high-impedance OFF-state isolation even when VCC = 0 V.
The 74LVC16245ABQ,518 uses standard flow-through pin architecture optimized for signal integrity, with multiple GND/VCC terminals to minimize ground bounce and noise. It does not include bus hold circuitry-this feature is exclusive to the 74LVCH16245A variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 1.2 V to 3.6 V - supports ultra-low-voltage operation down to 1.2 V while maintaining full functionality |
| I/O voltage tolerance | Up to 5.5 V - allows safe connection to 5 V logic without level shifters |
| Propagation delay | 1.0 ns to 6.0 ns (VCC = 2.7–3.6 V) - enables high-speed data transfer in 100+ MHz bus systems |
| Operating temperature | −40 °C to +125 °C - qualified for industrial and automotive under-hood environments |
| ESD protection | HBM >2000 V, CDM >1000 V - robust handling during board assembly and field operation |
| 3-state leakage | ±5 μA max (VCC = 3.6 V) - ensures minimal bus contention during disable states |
| Power dissipation capacitance | 30 pF per buffer - enables accurate dynamic power estimation in high-frequency switching |
Pinout & Package
74LVC16245ABQ,518 is housed in a 60-terminal HXQFN60U (SOT1134-1) package: 4 × 6 × 0.5 mm body, UTLP-based, thermally enhanced, leadless quad flat with exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A0–1A7, 2A0–2A7 | Data I/O (Port A) | First and second 8-bit bidirectional data ports; connect to local bus segment |
| 1B0–1B7, 2B0–2B7 | Data I/O (Port B) | Corresponding remote bus ports; direction determined by nDIR inputs |
| 1DIR, 2DIR | Direction control | Active-HIGH signals defining data flow: A→B (DIR=H) or B→A (DIR=L) |
| 1OE, 2OE | Output enable | Active-LOW enables outputs; HIGH forces all associated I/O into high-impedance state |
| VCC (4 terminals) | Supply | Distributed power connections reduce IR drop and improve noise immunity |
| GND (8 terminals) | Ground | Multiple low-inductance ground paths suppress ground bounce in fast-switching operation |
Key Features
| Feature | Design Value |
|---|---|
| 5 V tolerant I/O | Enables direct interface with legacy 5 V TTL/CMOS without external level translators |
| Dual independent nDIR/nOE pairs | Allows independent control of two 8-bit channels for flexible bus segmentation and cascading |
| Wide 1.2 V–3.6 V supply range | Supports battery-powered, low-power, and multi-rail system designs across process nodes |
| High-impedance OFF-state at VCC = 0 V | Permits hot-plug and partial-power-down operation without back-driving powered subsystems |
| JEDEC JESD8-B / JESD36 compliance | Guarantees interoperability with industry-standard 3.3 V logic families and PCB layout practices |
Applications
| Memory Expansion Interface | Peripheral Bridge |
|---|---|
Use Scenario: Connecting a 32-bit microcontroller's lower address/data bus to external SRAM or Flash memory operating at 3.3 V while maintaining compatibility with 5 V address latches. IC Role / Device Role / Timing Role: Bidirectional data and address transceiver isolating memory bus segments and managing direction during read/write cycles. Use Value: Eliminates need for discrete level shifters and reduces PCB area by consolidating two 8-bit paths in one HXQFN60U package with matched propagation delays. | Use Scenario: Interfacing an FPGA I/O bank running at 2.5 V with a 5 V industrial sensor module via parallel status/control lines. IC Role / Device Role / Timing Role: Voltage-tolerant bus buffer providing galvanic isolation and direction control between heterogeneous logic domains. Use Value: Prevents damage from 5 V overvoltage on FPGA pins and maintains timing integrity with sub-6 ns tpd across full temperature range. |
| Backplane Data Isolation | Industrial PLC I/O Module |
Use Scenario: Isolating CPU-side and field-side data buses in a modular programmable logic controller rack to prevent fault propagation. IC Role / Device Role / Timing Role: 3-state bus transceiver enabling dynamic bus arbitration and hot-swap-safe disconnection of modules. Use Value: Dual nOE inputs allow independent shutdown of each 8-bit path during diagnostics or firmware updates without affecting adjacent channels. | Use Scenario: Buffering digital input/output lines between a 3.3 V ARM Cortex-M7 controller and 24 V DC field actuators/sensors using optocoupler interfaces. IC Role / Device Role / Timing Role: Signal-level translator and bus driver ensuring clean edge transitions and noise-immune data capture. Use Value: Low input capacitance (5 pF) and fast enable/disable times (<7 ns) support deterministic real-time I/O response in safety-critical loops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGGR | TSSOP48 package (6.1 mm width); identical electrical specs; no thermal pad | Less effective thermal performance in high-density or continuous-drive applications | Select when board space permits larger footprint and thermal management is handled externally |
| 74LVCH16245ABQ,518 | Includes bus hold on all data inputs; otherwise identical pinout, timing, and voltage specs | Eliminates need for external pull-up resistors on unused inputs in floating-bus scenarios | Choose when unconnected data lines require deterministic logic levels without added passives |
Compared with SN74LVC16245ADGGR and 74LVCH16245ABQ,518, the 74LVC16245ABQ,518 offers superior thermal performance in compact layouts due to its HXQFN60U package, while lacking bus hold-making it optimal for controlled, fully terminated bus environments where external biasing is already implemented.
Availability
74LVC16245ABQ,518 is available at Aetrix Electronics and suitable for memory expansion, industrial PLC I/O modules, and embedded peripheral bridging requiring stable component supply, long-term lifecycle assurance, and AEC-Q200-aligned reliability.
Supply support for 74LVC16245ABQ,518 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
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The 74LVC16245ABQ,518 belongs to NXP's LVC logic family, designed for low-voltage, high-speed, mixed-signal interfacing in space-constrained and thermally demanding embedded systems.
FAQ
What is the maximum supply voltage for the 74LVC16245ABQ,518?
The absolute maximum supply voltage (VCC) for the 74LVC16245ABQ,518 is +6.5 V, but the recommended operating range is strictly 1.2 V to 3.6 V. Operation outside this range may cause functional failure or accelerated degradation. The device's 5 V I/O tolerance applies only to input/output pins-not the VCC rail-so applying 5 V to VCC is not permitted and will damage the 74LVC16245ABQ,518.
Does the 74LVC16245ABQ,518 include bus hold circuitry on its inputs?
No, the 74LVC16245ABQ,518 does not include bus hold circuitry. Bus hold is exclusive to the 74LVCH16245A variant. The 74LVC16245ABQ,518 requires external pull-up or pull-down resistors on unused data inputs to prevent floating states. This distinction is explicitly documented in NXP's datasheet revision 09 and confirmed in the "Features and benefits" section.
Can the 74LVC16245ABQ,518 be used in automotive applications?
Yes, the 74LVC16245ABQ,518 is qualified for operation from −40 °C to +125 °C and meets JEDEC standards relevant to automotive electronics. While not AEC-Q100 certified as a standalone part, its temperature rating and robustness (e.g., >2000 V HBM ESD) support use in engine control modules, body controllers, and infotainment interfaces where ambient conditions fall within its specified range.
What is the thermal pad on the 74LVC16245ABQ,518 package used for?
The exposed thermal pad on the HXQFN60U package of the 74LVC16245ABQ,518 is electrically isolated and intended solely for thermal conduction to the PCB. It must be soldered to a large copper pour for effective heat dissipation. Per NXP documentation (SOT1134-1), this pad is not connected to any internal die substrate and must not be used as a supply or signal terminal.
How many independent enable and direction controls does the 74LVC16245ABQ,518 provide?
The 74LVC16245ABQ,518 provides two independent output enable (1OE, 2OE) and two independent direction (1DIR, 2DIR) inputs-one pair for each 8-bit data port. This allows simultaneous or asynchronous control of Port A (1A/1B) and Port B (2A/2B), enabling configurations such as split-bus arbitration, cascaded transceivers, or independent read/write channel gating in the 74LVC16245ABQ,518.
74LVC16245ABQ,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVC
- Package/Case:
- 60-UFQFN Dual Rows, Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 60-HUQFNU (4x6)
74LVC16245ABQ,518 FAQ
1.How can I place an order for 74LVC16245ABQ,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC16245ABQ,518 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 74LVC16245ABQ,518 reliable?
The price and inventory of 74LVC16245ABQ,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC16245ABQ,518 is usually 5 days.
3.What payment methods are accepted for 74LVC16245ABQ,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC16245ABQ,518 transactions.
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4.How is shipping managed for 74LVC16245ABQ,518?
74LVC16245ABQ,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC16245ABQ,518 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 74LVC16245ABQ,518?
For technical support, including 74LVC16245ABQ,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC16245ABQ,518 requirements.
6.How does Aetrix verify that 74LVC16245ABQ,518 is sourced from the original manufacturer or authorized distributors?
All 74LVC16245ABQ,518 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 74LVC16245ABQ,518 meets industry standards.
7.What is the process for return or replacement of 74LVC16245ABQ,518?
All 74LVC16245ABQ,518 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC16245ABQ,518, 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 74LVC16245ABQ,518 part is unused and in its original packaging.
Return procedure for 74LVC16245ABQ,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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