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NXP Semiconductors 74LVT16245BEV,157
- Part No.:
- 74LVT16245BEV,157
- Manufacturer:
- NXP Semiconductors
- Package:
- 56-VFBGA
- Datasheet:
-
74LVT16245BEV,157.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 56VFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,687
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Product details
Overview
74LVT16245BEV,157 from Nexperia is a 3.3 V 16-bit bidirectional transceiver with 3-state outputs, designed for high-speed bus interface between mixed-voltage systems. It supports dual 8-bit or single 16-bit operation, features two independent direction controls (1DIR/2DIR) and two output enables (1OE/2OE), and delivers ±64 mA drive capability. It is used in industrial backplane interfaces where level translation and bus contention control are required.
For engineers reviewing the 74LVT16245BEV,157 datasheet, 74LVT16245BEV,157 pinout, 74LVT16245BEV,157 application, or 74LVT16245BEV,157 equivalent, key selection considerations include its 2.7–3.6 V supply range, 5.5 V overvoltage-tolerant inputs, bus hold circuitry eliminating external pull-ups, live insertion capability, and IOFF partial power-down mode.
Technical Context
This device implements a BiCMOS architecture to achieve high-speed propagation delays (1.0–3.3 ns typical at 3.3 V) while maintaining robust output drive. Its dual 8-bit channel structure allows independent enable and direction control per side, enabling flexible data flow management across segmented buses.
The integrated bus hold circuitry actively maintains logic states on unused inputs without external resistors, and the IOFF feature ensures minimal leakage (<±100 μA) when VCC = 0 V-critical for hot-swap and power-gating applications. Input clamping and ESD protection (HBM >2000 V, CDM >1000 V) support rugged system-level integration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - Enables direct interfacing with 3.3 V logic domains and compatibility with wide-input-voltage regulators. |
| Input Voltage Tolerance | Up to 5.5 V - Allows safe connection to 5 V buses without level shifters or clamping diodes. |
| Output Drive | +64 mA / −32 mA - Sustains signal integrity driving heavy capacitive loads or multiple TTL inputs. |
| Propagation Delay | 1.0–3.3 ns (tPLH/tPHL at VCC = 3.3 V) - Supports >200 MHz bus toggle rates in point-to-point configurations. |
| Bus Hold Current | ±75–135 μA - Maintains stable logic levels on floating inputs, removing need for 10 kΩ pull-up/down resistors. |
| IOFF Leakage | ±100 μA max at VCC = 0 V - Prevents back-driving of powered-down sections during partial system shutdown. |
| Operating Temperature | −40 °C to +85 °C - Qualified for industrial ambient environments without derating. |
Pinout & Package
TSSOP48 package (SOT362-1), plastic thin shrink small outline, 48 leads, body width 6.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 24DIR | Direction control input | Active-HIGH signal selecting data flow direction for first 8-bit port (A↔B); determines whether A drives B or B drives A. |
| 48OE, 25OE | Output enable input (active LOW) | Disables all outputs on respective 8-bit port into high-impedance state; enables bus sharing without contention. |
| 1A0–1A7, 2A0–2A7 | Data I/O port A | First and second 8-bit bidirectional data terminals connected to local subsystem (e.g., microcontroller bus). |
| 1B0–1B7, 2B0–2B7 | Data I/O port B | First and second 8-bit bidirectional data terminals connected to remote bus (e.g., peripheral expansion bus). |
| 7,18,31,42 VCC | Supply voltage | Four distributed VCC pins reduce IR drop and improve noise immunity across high-speed switching activity. |
| 4,10,15,21,28,34,39,45 GND | Ground | Eight GND pins provide low-inductance return paths essential for clean signal integrity and EMI control. |
Key Features
| Feature | Design Value |
|---|---|
| BiCMOS process technology | Enables sub-3.5 ns propagation delay with TTL-compatible output swing and 3.3 V core supply. |
| Overvoltage-tolerant inputs | Accepts 0–5.5 V signals while powered from 2.7–3.6 V, simplifying interconnection with legacy 5 V peripherals. |
| Bus hold circuitry | Eliminates external biasing components on unused data lines, reducing BOM count and PCB area. |
| IOFF partial power-down | Blocks current flow between ports when VCC = 0 V, preventing back-powering of unpowered subsystems. |
| Live insertion/extraction support | Withstands hot-plug events without latch-up or damage due to controlled turn-on sequencing and clamp structures. |
Applications
| Industrial Backplane Interface | Memory Expansion Subsystem |
|---|---|
Use Scenario: Interfacing a 3.3 V FPGA processor bus to a 5 V legacy peripheral backplane with shared address/data lines. IC Role / Device Role / Timing Role: Bidirectional level-translating transceiver managing data flow direction and isolating bus segments during arbitration. Use Value: Eliminates discrete level shifters and pull-up networks while supporting 200+ MHz burst transfers via sub-3.3 ns propagation. | Use Scenario: Adding external SRAM or Flash memory to a 3.3 V SoC design where memory operates at 5 V or shares a multiplexed bus with other 5 V devices. IC Role / Device Role / Timing Role: Bus buffer providing drive strength, direction control, and 3-state isolation between SoC and memory array. Use Value: Delivers ±64 mA drive to meet memory setup/hold timing under 100 pF load; bus hold prevents floating address lines during chip select inactive periods. |
| Hot-Swappable Module Interface | Test Equipment Signal Routing |
Use Scenario: Enabling field-replaceable modules in programmable logic controllers where modules may be inserted or removed while main controller remains powered. IC Role / Device Role / Timing Role: Isolation transceiver with IOFF and live-insertion hardening, decoupling module I/O from backplane during insertion/removal. Use Value: IOFF limits leakage to <±100 μA when module is unpowered; overvoltage tolerance protects against transient coupling during mating. | Use Scenario: Reconfigurable signal routing in automated test equipment where DUT interfaces must be dynamically switched between multiple instrument channels. IC Role / Device Role / Timing Role: Programmable bidirectional bus switch controlled by FPGA GPIOs to route 16-bit parallel data paths. Use Value: Dual OE/DIR controls allow independent gating and direction setting per 8-bit lane, enabling flexible path mapping without software overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVTH16245BDGG | Same pinout and function; enhanced drive (+64 mA / −64 mA vs. +64 mA / −32 mA) and slightly faster tPLH/tPHL (1.0–2.9 ns). | Preferred where symmetrical drive strength is needed for bidirectional signal integrity on heavily loaded buses. | Select 74LVTH16245BDGG when driving long traces or multiple loads in both directions demands equal sourcing/sinking capability. |
| SN74LVC16245ADGGR | Different manufacturer (TI); same TSSOP48 package; lower drive (±24 mA); narrower VCC range (1.65–3.6 V); no bus hold or IOFF. | Suitable for cost-sensitive, low-power 3.3 V-only systems without mixed-voltage or hot-swap requirements. | Choose SN74LVC16245ADGGR only if 5.5 V input tolerance, bus hold, and IOFF are not required-and TI supply chain preference applies. |
Compared with 74LVTH16245BDGG, the 74LVT16245BEV,157 offers asymmetric drive optimized for source-heavy applications, while SN74LVC16245ADGGR trades robustness for lower static current and cost-making the 74LVT16245BEV,157 optimal for industrial mixed-voltage bus bridging where reliability and feature completeness are prioritized.
Availability
74LVT16245BEV,157 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory expansion subsystems, hot-swappable module interfaces, and test equipment signal routing requiring stable component supply and long-term manufacturability.
Supply support for 74LVT16245BEV,157 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 logic, analog, and MOSFET solutions for industrial, automotive, and computing markets.
The 74LVT16245BEV,157 belongs to Nexperia's LVT/LVTH logic family, engineered specifically for high-speed, mixed-voltage bus interfacing in industrial control and communications infrastructure where robustness, thermal stability, and long-lifecycle support are mandatory.
FAQ
What is the maximum input voltage the 74LVT16245BEV,157 can tolerate without damage?
The 74LVT16245BEV,157 supports input voltages up to +5.5 V regardless of VCC level, as confirmed in Table 4 (Limiting Values) and Table 5 (Recommended Operating Conditions). This overvoltage tolerance allows direct connection to 5 V buses while operating from a 3.3 V supply, eliminating external level-shifting components. Absolute maximum rating is +7.0 V, but sustained operation above 5.5 V is not recommended.
Does the 74LVT16245BEV,157 support hot-plug insertion into a live backplane?
Yes, the 74LVT16245BEV,157 explicitly supports live insertion and extraction per Section 2 ("Features and benefits"). Its IOFF circuitry, overvoltage-tolerant inputs, and robust ESD protection (HBM >2000 V, CDM >1000 V) prevent latch-up and damage during mating. The device enters a high-impedance state on power-up, ensuring no bus contention during initialization.
How does the bus hold feature of the 74LVT16245BEV,157 eliminate external pull-up resistors?
The 74LVT16245BEV,157 integrates active bus hold circuitry on all data I/O pins (1A0–1A7, 1B0–1B7, 2A0–2A7, 2B0–2B7), providing ±75–135 μA holding current to maintain valid logic states on floating inputs. As stated in Section 1 and Section 2, this removes the need for external 10 kΩ pull-up/down resistors-reducing BOM cost, PCB space, and potential signal integrity degradation from resistor parasitics.
What is the propagation delay performance of the 74LVT16245BEV,157 at 3.3 V supply?
At VCC = 3.3 V and Tamb = 25 °C, the 74LVT16245BEV,157 achieves typical propagation delays of 1.9 ns (tPLH) and 1.7 ns (tPHL) for data path transitions (nAn ↔ nBn), and 2.8–3.2 ns for 3-state enable/disable (tPZH/tPHZ). These values are specified in Table 7 (Dynamic Characteristics) and support reliable operation in systems with >200 MHz bus toggle rates under controlled loading conditions.
Is the 74LVT16245BEV,157 pin-compatible with other packages of the same logic family?
No-the 74LVT16245BEV,157 uses the TSSOP48 package (SOT362-1), and Section 13 (Revision history) confirms that earlier variants in SO48 (74LVT16245BBX) and SSOP48 (74LVT16245BDL) have been discontinued. While functional equivalents exist (e.g., 74LVTH16245BDGG), they share the same TSSOP48 footprint but differ in drive strength; no pin-compatible migration path exists to non-TSSOP packages for this specific part number.
74LVT16245BEV,157 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVT
- Package/Case:
- 56-VFBGA
- Packaging:
- Tray
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-VFBGA (4.5x7)
74LVT16245BEV,157 FAQ
1.How can I place an order for 74LVT16245BEV,157 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT16245BEV,157 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 74LVT16245BEV,157 reliable?
The price and inventory of 74LVT16245BEV,157 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT16245BEV,157 is usually 5 days.
3.What payment methods are accepted for 74LVT16245BEV,157?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVT16245BEV,157 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVT16245BEV,157?
74LVT16245BEV,157 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVT16245BEV,157 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 74LVT16245BEV,157?
For technical support, including 74LVT16245BEV,157 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT16245BEV,157 requirements.
6.How does Aetrix verify that 74LVT16245BEV,157 is sourced from the original manufacturer or authorized distributors?
All 74LVT16245BEV,157 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 74LVT16245BEV,157 meets industry standards.
7.What is the process for return or replacement of 74LVT16245BEV,157?
All 74LVT16245BEV,157 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT16245BEV,157, 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 74LVT16245BEV,157 part is unused and in its original packaging.
Return procedure for 74LVT16245BEV,157:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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