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Nexperia USA Inc. 74LVT245BPW,118
- Part No.:
- 74LVT245BPW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVT245BPW,118.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,183
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Product details
Overview
74LVT245BPW,118 from Nexperia is a 3.3 V octal bidirectional transceiver with direction control (DIR) and 3-state output enable (OE), designed for high-speed bus interface between 3.3 V logic domains and 5 V-tolerant systems. It features bus-hold inputs eliminating external pull-ups, ±64 mA/–32 mA drive capability, and operates from –40 °C to +85 °C in TSSOP20 package. Used in memory expansion, FPGA I/O bridging, and industrial controller backplanes.
For engineers reviewing the 74LVT245BPW,118 datasheet, 74LVT245BPW,118 pinout, 74LVT245BPW,118 application, or 74LVT245BPW,118 equivalent, key selection criteria include 5.5 V overvoltage-tolerant inputs, bi-directional data flow control via DIR, 3-state timing (tPZH/tPLZ ≤ 5.5 ns at 3.3 V), bus-hold functionality, and JEDEC JESD8C compliance for 2.7–3.6 V operation.
Technical Context
The 74LVT245BPW implements BiCMOS logic architecture enabling TTL-level compatibility and high-speed switching with low propagation delay (tPLH/tPHL ≤ 3.5 ns at 3.3 V). Its DIR pin selects data flow direction between A- and B-buses, while OE (active LOW) controls 3-state output disable with power-down leakage < ±100 μA.
Bus-hold circuitry maintains stable logic states on unused inputs without external resistors, and IOFF protection ensures minimal leakage during partial power-down. Input clamping supports up to 7.0 V, allowing safe interfacing with 5 V buses while powered from 3.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - Ensures robust operation across industrial voltage tolerances and brown-out conditions. |
| Input Voltage Range | 0 V to 5.5 V - Enables direct connection to 5 V logic without level shifters. |
| Output Drive | +64 mA / –32 mA - Supports driving heavy capacitive loads and multiple CMOS/TTL inputs. |
| Propagation Delay | 1.2 ns (typ) to 3.5 ns (max) - Meets high-speed synchronous bus timing budgets (e.g., PCI-X, legacy ISA). |
| Bus-Hold Current | ±75 μA to ±150 μA - Maintains defined logic state on floating inputs without external biasing. |
| IOFF Leakage | ±100 μA max at VCC = 0 V - Prevents back-powering of powered-down sections in hot-swap systems. |
| Operating Temperature | –40 °C to +85 °C - Qualified for industrial and extended commercial environments. |
Pinout & Package
TSSOP20 package (SOT360-1): 20-pin plastic thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, exposed thermal pad (non-soldered by default).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DIR | Direction control input: LOW enables A→B transfer; HIGH enables B→A transfer. |
| 2–9 | A0–A7 | Port A data I/O terminals - connect to local bus or controller side. |
| 10 | GND | Ground reference (0 V) - mandatory for signal integrity and ESD path. |
| 11–18 | B7–B0 | Port B data I/O terminals - connect to remote bus or peripheral side (reversed order per pinout diagram). |
| 19 | OE | Active-LOW output enable - HIGH forces all outputs into high-impedance OFF-state. |
| 20 | VCC | 3.3 V supply input - must be decoupled locally with 100 nF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Overvoltage-tolerant inputs | Withstands up to 5.5 V regardless of VCC - eliminates need for external clamping diodes when interfacing with 5 V systems. |
| Bus-hold inputs | Internal weak keepers on all data pins - prevents floating inputs and system lockup without external pull-up/down resistors. |
| Live insertion/extraction support | IOFF circuitry limits leakage to ±100 μA when VCC = 0 V - enables safe hot-plug operation in modular backplanes. |
| BiCMOS output stage | Combines bipolar speed and CMOS low static power - achieves 3.5 ns max propagation delay with 0.19 mA typical ICC. |
| JEDEC JESD8C compliance | Validated for 2.7–3.6 V operation - guarantees interoperability with other LVT-family devices in mixed-voltage designs. |
Applications
| Memory Expansion Interface | FPGA I/O Bridging |
|---|---|
Use Scenario: Expanding address/data bus between microcontroller and parallel SRAM/Flash. IC Role / Device Role / Timing Role: Bidirectional data transceiver synchronizing read/write cycles between mismatched voltage domains. Use Value: Eliminates discrete level shifters and pull-up networks while maintaining sub-4 ns timing margins for 25 MHz bus operation. |
Use Scenario: Interfacing FPGA I/O banks (3.3 V) with legacy 5 V peripheral controllers. IC Role / Device Role / Timing Role: Voltage-tolerant bus buffer managing direction and tristate control under FPGA GPIO management. Use Value: Enables direct connection without external voltage translation, reducing BOM count and PCB area in compact embedded modules. |
| Industrial PLC Backplane | Test Equipment Signal Routing |
Use Scenario: Isolating and routing control signals across modular I/O slots in programmable logic controllers. IC Role / Device Role / Timing Role: Hot-swap-capable bus transceiver providing galvanic separation and direction-controlled signal forwarding. Use Value: IOFF and bus-hold ensure safe module insertion/removal without disrupting active backplane communication or causing glitches. |
Use Scenario: Reconfigurable signal path selection in automated test equipment (ATE) channel cards. IC Role / Device Role / Timing Role: Low-latency bidirectional switch enabling dynamic routing of stimulus/response signals between DUT and instruments. Use Value: 3.5 ns max propagation delay and 5.5 ns max 3-state transition support high-fidelity signal integrity at >100 MHz test frequencies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC245APWR | Lower drive (+24 mA/–24 mA); 1.65–3.6 V supply; no bus-hold; 5 V tolerant only with external resistor network. | Suitable for low-power, cost-sensitive consumer designs where bus-hold and high drive are not required. | Select when minimizing quiescent current (< 10 μA) is critical and system uses only 3.3 V peripherals. |
| 74ALVCH16245PAG | 16-bit (dual-octal); 1.65–3.6 V; higher speed (tPD ≤ 2.8 ns); no bus-hold; requires external pull-ups. | Used in high-density memory interfaces requiring wider bus width and tighter timing closure. | Choose for 16-bit parallel paths where board space allows larger TSSOP-48 and additional decoupling is acceptable. |
Compared with SN74LVC245APWR and 74ALVCH16245PAG, the 74LVT245BPW offers superior drive strength, integrated bus-hold, and guaranteed 5.5 V input tolerance - making it optimal for industrial backplanes and mixed-voltage FPGA interconnects where reliability and reduced external components are prioritized.
Availability
74LVT245BPW,118 is available at Aetrix Electronics and suitable for memory expansion interfaces, FPGA I/O bridging, industrial PLC backplanes, and test equipment signal routing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVT245BPW,118 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 specializing in high-performance logic, analog, and MOSFET solutions, with manufacturing rooted in process innovation and automotive-grade quality systems.
The 74LVT245B belongs to Nexperia's LVT (Low-Voltage Technology) logic family, engineered for high-speed, mixed-voltage digital interfacing in industrial, communications, and computing infrastructure applications.
FAQ
What is the maximum input voltage the 74LVT245BPW,118 can tolerate?
The device accepts input voltages up to +7.0 V (absolute maximum) and is rated for sustained operation at up to +5.5 V - enabling direct connection to 5 V buses without external clamping. This overvoltage tolerance is maintained across the full –40 °C to +85 °C operating range and does not require VCC to be present.
Does the 74LVT245BPW,118 require external pull-up resistors on unused inputs?
No. The device integrates bus-hold circuitry on all A and B port inputs, providing ±75 μA to ±150 μA holding current to maintain valid logic states on floating pins. This eliminates the need for external pull-up or pull-down resistors, reducing BOM count and PCB layout complexity.
Can the 74LVT245BPW,118 be used in hot-swap applications?
Yes. Its IOFF circuitry limits power-off leakage to ±100 μA when VCC = 0 V, and it supports live insertion/extraction per JEDEC standards. Combined with bus-hold and 3-state control, this enables safe module replacement in powered backplanes without disrupting adjacent slots.
What is the propagation delay behavior when switching between 3-state and active output modes?
tPZH (OFF-to-HIGH) and tPZL (OFF-to-LOW) are specified at ≤ 5.5 ns (max) at VCC = 3.3 V. These delays govern how quickly the output responds after OE transitions from HIGH to LOW, directly impacting bus arbitration timing and setup/hold windows in synchronous protocols.
74LVT245BPW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVT
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 1
- 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:
- 20-TSSOP
74LVT245BPW,118 FAQ
1.How can I place an order for 74LVT245BPW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT245BPW,118 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 74LVT245BPW,118 reliable?
The price and inventory of 74LVT245BPW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT245BPW,118 is usually 5 days.
3.What payment methods are accepted for 74LVT245BPW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVT245BPW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVT245BPW,118?
74LVT245BPW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVT245BPW,118 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 74LVT245BPW,118?
For technical support, including 74LVT245BPW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT245BPW,118 requirements.
6.How does Aetrix verify that 74LVT245BPW,118 is sourced from the original manufacturer or authorized distributors?
All 74LVT245BPW,118 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 74LVT245BPW,118 meets industry standards.
7.What is the process for return or replacement of 74LVT245BPW,118?
All 74LVT245BPW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT245BPW,118, 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 74LVT245BPW,118 part is unused and in its original packaging.
Return procedure for 74LVT245BPW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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