My Inquiry
My Account
NXP Semiconductors 74LVT16245BBX,518
- Part No.:
- 74LVT16245BBX,518
- Manufacturer:
- NXP Semiconductors
- Package:
- 60-XFQFN Dual Rows, Exposed Pad
- Datasheet:
-
74LVT16245BBX,518.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 60HXQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,475
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LVT16245BBX,518 from Nexperia is a 3.3 V, 16-bit bidirectional bus transceiver with dual 3-state control and bus-hold inputs. It functions as two independent 8-bit transceivers or one unified 16-bit interface, supports 2.7–3.6 V supply, tolerates 5.5 V inputs, and delivers ±64 mA output drive. It is used in high-speed backplane and motherboard data bus isolation between mixed-voltage domains (e.g., 3.3 V logic interfacing to 5 V legacy peripherals).
For engineers reviewing the 74LVT16245BBX,518 datasheet, 74LVT16245BBX,518 pinout, 74LVT16245BBX,518 application, or 74LVT16245BBX,518 equivalent, key selection criteria include its dual-direction control (1DIR/2DIR), independent output enables (1OE/2OE), bus-hold functionality eliminating pull-ups, 3.3 V core compatibility with 5 V-tolerant I/O, and TSSOP48 packaging for dense PCB layouts.
Technical Context
This BiCMOS transceiver implements two independent 8-bit bidirectional data paths, each with dedicated direction (nDIR) and output enable (nOE) signals. Its bus-hold circuitry actively maintains last-valid logic state on unused inputs without external resistors, reducing BOM count and layout complexity.
It features IOFF partial power-down protection, live insertion/extraction support, and overvoltage-tolerant inputs up to 5.5 V-enabling safe interfacing between 3.3 V logic and 5 V buses without level shifters. Propagation delays are under 3.3 ns (VCC = 3.0–3.6 V), supporting >200 MHz bus operation in typical configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - Ensures stable operation across industrial-grade voltage variation and low-power system rails. |
| Input Voltage Range | 0 V to 5.5 V - Allows direct connection to 5 V TTL systems without external level translation. |
| Output Drive | +64 mA / –32 mA - Sinks sufficient current to drive heavy capacitive loads or multiple CMOS inputs on shared buses. |
| Propagation Delay | 1.0–3.3 ns - Enables sub-5 ns round-trip timing for high-speed synchronous bus protocols (e.g., PCI-X stubs, memory buffers). |
| Bus Hold Current | ±75–135 μA - Maintains defined logic states on floating data lines, preventing metastability and EMI from unterminated traces. |
| Operating Temperature | –40 °C to +85 °C - Qualified for industrial ambient environments including base station control cards and programmable logic carrier boards. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Robust handling during board assembly and field service without additional protection components. |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch - optimized for automated placement and thermal performance in space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Active-HIGH signal selecting data flow direction per 8-bit port (A→B or B→A); enables independent bidirectional control. |
| 1OE, 2OE | Output enable input | Active-LOW signal placing corresponding 8-bit outputs into high-impedance state; allows dynamic bus sharing and hot-swap isolation. |
| 1A0–1A7, 2A0–2A7 | Data port A terminals | Primary bidirectional I/O pins for first and second 8-bit data channels; internally connected to bus-hold circuitry. |
| 1B0–1B7, 2B0–2B7 | Data port B terminals | Secondary bidirectional I/O pins mirroring port A; full 16-bit transceiver formed when both ports operate synchronously. |
| VCC (pins 7, 18, 31, 42) | Power supply | Four distributed VCC pins reduce IR drop and improve noise immunity across wide TSSOP body. |
| GND (pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins provide low-inductance return paths, critical for signal integrity at >100 MHz switching rates. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 8-bit control | Separate DIR/OE per port enables asymmetric bus arbitration-e.g., Port 1 reads while Port 2 writes-without external logic. |
| Bus-hold inputs | Eliminates need for 32 external pull-up/pull-down resistors on data lines, reducing component count and board area in modular backplane designs. |
| IOFF partial power-down | Prevents damaging current backflow when VCC = 0 V but I/O pins remain biased (e.g., during hot-plug card insertion), meeting IEC 61000-4-2 system-level robustness. |
| 5.5 V tolerant inputs | Directly interfaces legacy 5 V peripherals (e.g., EEPROMs, UARTs) without level translators-reducing latency and BOM cost in mixed-voltage embedded controllers. |
| Live insertion/extraction support | Guaranteed no bus contention or latch-up during hot-swap of daughterboards in telecom shelf management systems. |
Applications
| Backplane Data Isolation | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Isolating CPU local bus from extended peripheral slots in modular rack-mounted controllers. IC Role / Device Role / Timing Role: Bidirectional data buffer managing 16-bit parallel transfers between 3.3 V processor and 5 V analog I/O modules. Use Value: Eliminates need for discrete level shifters and pull-ups, cutting interconnect latency by ≤3.3 ns and reducing slot PCB layer count by one. | Use Scenario: Interfacing FPGA-based main controller to legacy 5 V digital I/O cards in factory automation cabinets. IC Role / Device Role / Timing Role: Voltage-tolerant transceiver enabling real-time deterministic data exchange across mixed-supply subsystems. Use Value: Bus-hold prevents floating inputs during card removal; IOFF protects against backfeed during hot-swap-meeting IEC 61131-2 safety requirements. |
| Memory Subsystem Buffering | Test Equipment Bus Interface |
Use Scenario: Driving address/data lines between SoC and external SRAM/Flash in compact edge AI accelerators. IC Role / Device Role / Timing Role: High-drive 16-bit transceiver ensuring signal integrity across 80 mm FR4 traces at 100+ MHz toggle rates. Use Value: ±64 mA drive sustains VIH/VIL margins under 30 pF load; propagation delay consistency enables setup/hold compliance without added timing margin. | Use Scenario: Adapting benchtop logic analyzer pods to proprietary 5 V instrumentation buses in semiconductor ATE systems. IC Role / Device Role / Timing Role: Reconfigurable 8/16-bit interface translating protocol-specific control and data lanes. Use Value: Dual OE/DIR control allows dynamic reassignment of channel roles (e.g., command vs. response) within single firmware build. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGGR | Lower drive (±24 mA), 1.65–3.6 V supply, no bus-hold | Requires external pull-ups; unsuitable for hot-swap or unterminated buses | Select only if system uses fully terminated buses and operates below 3.3 V nominal supply. |
| 74ALVCH16245PAG | Higher speed (tPD ≤ 2.4 ns), 2.3–3.6 V, no 5 V tolerance | Cannot interface directly to 5 V peripherals without level shifters | Choose when maximum speed is critical and all connected devices are 3.3 V native. |
Compared with SN74LVC16245ADGGR and 74ALVCH16245PAG, the 74LVT16245BBX,518 uniquely combines 5.5 V input tolerance, bus-hold, and ±64 mA drive-making it the only option among the three qualified for mixed-voltage hot-swap backplanes without supplemental components.
Availability
74LVT16245BBX,518 is available at Aetrix Electronics and suitable for industrial PLC backplanes, test equipment interfaces, memory subsystem buffering, and modular telecom chassis requiring stable component supply across extended product lifecycles.
Supply support for 74LVT16245BBX,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
Nexperia is a global semiconductor expert delivering high-performance, reliable, and energy-efficient components-including logic, discrete, and MOSFET solutions-for automotive, industrial, computing, and consumer markets.
The 74LVT/LVTH series targets high-speed, mixed-voltage digital interfacing in industrial and communications infrastructure-designed specifically for robust operation in noisy, thermally demanding environments with minimal external support circuitry.
FAQ
What is the maximum clock frequency supported by the 74LVT16245BBX,518?
The device does not operate on a clock; it is an asynchronous transceiver. Its usable data rate depends on propagation delay and system timing margins. With tPLH/tPHL ≤ 3.3 ns (VCC = 3.0–3.6 V), it supports reliable bidirectional transfers up to ~200 MHz in well-terminated, low-skew layouts-verified via functional testing per JEDEC JESD8C.
Can the 74LVT16245BBX,518 be used with a 2.5 V supply?
No. The recommended operating supply range is strictly 2.7 V to 3.6 V per Table 5. At 2.5 V, VIH minimum (2.0 V) and VOL maximum (0.55 V) specifications cannot be simultaneously guaranteed, risking logic misreads and increased static power due to marginal transistor biasing.
Does the bus-hold feature work when VCC = 0 V?
No. Bus-hold circuitry requires VCC to be powered and within specification (2.7–3.6 V) to maintain input state. When VCC = 0 V, inputs float and IOFF protection activates-but no active hold is present. This behavior is confirmed in Section 9's IBHL/IBHH test conditions (VCC = 3 V).
How many ground pins does the TSSOP48 package have, and why so many?
The TSSOP48 package has eight GND pins (pins 4, 10, 15, 21, 28, 34, 39, 45). This distribution minimizes ground loop inductance and provides low-impedance return paths for high-frequency switching currents from 32 I/O pins-critical for maintaining signal integrity and meeting EMI limits in dense, high-speed PCBs.
74LVT16245BBX,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVT
- Package/Case:
- 60-XFQFN Dual Rows, Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 60-HXQFN (4x6)
74LVT16245BBX,518 FAQ
1.How can I place an order for 74LVT16245BBX,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT16245BBX,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 74LVT16245BBX,518 reliable?
The price and inventory of 74LVT16245BBX,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT16245BBX,518 is usually 5 days.
3.What payment methods are accepted for 74LVT16245BBX,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVT16245BBX,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVT16245BBX,518?
74LVT16245BBX,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVT16245BBX,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 74LVT16245BBX,518?
For technical support, including 74LVT16245BBX,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT16245BBX,518 requirements.
6.How does Aetrix verify that 74LVT16245BBX,518 is sourced from the original manufacturer or authorized distributors?
All 74LVT16245BBX,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 74LVT16245BBX,518 meets industry standards.
7.What is the process for return or replacement of 74LVT16245BBX,518?
All 74LVT16245BBX,518 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT16245BBX,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 74LVT16245BBX,518 part is unused and in its original packaging.
Return procedure for 74LVT16245BBX,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVT16245BBX,518 Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
