My Inquiry
My Account
Nexperia USA Inc. 74LVT245PW,118
- Part No.:
- 74LVT245PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVT245PW,118.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,783
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LVT245PW,118 from Nexperia is an 8-bit bidirectional 3-state transceiver with independent direction (DIR) and output enable (OE) control, operating from 2.7 V to 3.6 V supply. It features bus-hold inputs eliminating external pull-ups, overvoltage-tolerant inputs up to 5.5 V, and ±64 mA/–32 mA output drive. Used in 3.3 V system-level bus interfacing between microcontrollers and peripheral ICs.
For engineers reviewing the 74LVT245PW,118 datasheet, 74LVT245PW,118 pinout, 74LVT245PW,118 application, or 74LVT245PW,118 equivalent, key selection criteria include bidirectional data flow control, 3-state timing (tPLZ ≤ 4.8 ns), bus-hold functionality, and TSSOP20 package compatibility with high-density PCB layouts.
Technical Context
The device implements a BiCMOS octal transceiver architecture with separate DIR and OE inputs enabling precise control of data direction and bus isolation. Its IOFF circuitry ensures partial power-down operation when VCC = 0 V, and bus-hold inputs maintain valid logic states on unused A/B pins without external biasing.
It supports live insertion/extraction and direct TTL-level interfacing while tolerating 5.5 V inputs - critical for mixed-voltage domain bridging. Propagation delays are specified at 1.0–4.0 ns (tPLH/tPHL) and 2.0–5.9 ns (tPLZ/tPHZ) under 3.3 V ±0.3 V conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - enables stable operation across industrial-grade 3.3 V rails with ±0.3 V margin. |
| Input Voltage Range | 0 V to 5.5 V - allows safe connection to 5 V buses without level-shifting circuitry. |
| Output Drive | +64 mA / –32 mA - supports driving heavy capacitive loads or multiple TTL inputs directly. |
| Propagation Delay | tPLH/tPHL ≤ 4.0 ns @ 3.3 V - ensures sub-5 ns signal routing for high-speed synchronous bus transfers. |
| Bus-Hold Current | IBHL = 75–150 μA, IBHH = –150 to –75 μA - actively maintains input state without external resistors. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets JEDEC JS-001/JS-002 Class 2/C3 for robust board handling. |
| Operating Temperature | –40 °C to +85 °C - qualified for industrial ambient environments without derating. |
Pinout & Package
TSSOP20 plastic thin shrink small outline package (SOT360-1); 20-pin surface-mount with 0.65 mm pitch, 4.4 mm body width, and exposed thermal pad (non-soldered by default).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DIR) | Direction control input | LOW = A→B data flow; HIGH = B→A; determines real-time bus directionality. |
| 2–9 (A0–A7) | Port A data I/O | Bidirectional data terminals with bus-hold; connect to controller-side bus. |
| 10 (GND) | Ground reference | 0 V return path for all internal logic and I/O; must be low-impedance. |
| 11–18 (B0–B7) | Port B data I/O | Bidirectional data terminals with bus-hold; connect to peripheral-side bus. |
| 19 (OE) | Output enable (active LOW) | Drives all A/B outputs to high-impedance when HIGH; enables bus sharing. |
| 20 (VCC) | Supply voltage | Primary 3.3 V power rail; decoupling capacitor required within 1 cm. |
Key Features
| Feature | Design Value |
|---|---|
| Overvoltage-tolerant inputs | Withstands 5.5 V inputs while powered from 3.3 V - eliminates need for external clamping diodes. |
| IOFF partial power-down | Prevents current backflow when VCC = 0 V - enables hot-plug capability in modular systems. |
| Bus-hold inputs | Retains last-valid logic state on floating A/B pins - removes requirement for 10 kΩ pull-up/down resistors. |
| Live insertion/extraction support | Guaranteed no latch-up or damage during board insertion - validated per JESD78 Class II (>500 mA). |
| Power-up 3-state | Outputs remain high-impedance until VCC stabilizes - prevents bus contention during power sequencing. |
Applications
| Industrial PLC Backplane Interface | Embedded Microcontroller Expansion Bus |
|---|---|
|
Use Scenario: Interfacing ARM Cortex-M7 MCU with legacy 8-bit peripheral modules on a shared 3.3 V backplane. IC Role / Device Role / Timing Role: Bidirectional data bridge with DIR-controlled flow and OE-gated bus release; tPLZ ≤ 4.8 ns ensures deterministic timing alignment. Use Value: Eliminates discrete level shifters and pull-up networks, reducing BOM count by 7 components per interface channel. |
Use Scenario: Expanding GPIO count of an FPGA-based motor control board via parallel 8-bit data latching. IC Role / Device Role / Timing Role: Synchronous bus transceiver synchronizing FPGA I/O banks with external encoder feedback lines. Use Value: Bus-hold inputs prevent metastability on unconnected encoder channels; IOFF protects during FPGA reconfiguration. |
| Automated Test Equipment (ATE) Signal Routing | Medical Imaging Data Acquisition Module |
|
Use Scenario: Dynamic reconfiguration of analog front-end channel mapping using programmable digital control lines. IC Role / Device Role / Timing Role: Directionally reconfigurable signal path selector with nanosecond-scale enable/disable transitions. Use Value: Sub-5 ns propagation delay and <5.9 ns tPHZ enable precise timing alignment across 32-channel scan sequences. |
Use Scenario: Isolating ADC data bus from FPGA processing unit in portable ultrasound subsystems. IC Role / Device Role / Timing Role: 3-state bus isolator preventing noise coupling during ADC conversion windows. Use Value: Power-up 3-state behavior avoids bus contention at boot; –40 °C to +85 °C rating supports clinical environment operation. |
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), narrower VCC range (1.65–3.6 V), no bus-hold | Requires external pull-ups; unsuitable for floating-bus scenarios | Select only if lower power and cost outweigh bus-hold dependency |
| 74ALVC245PW,118 | Same package, higher speed (tPLH ≤ 3.2 ns), but no overvoltage tolerance (max VI = VCC + 0.3 V) | Cannot interface directly with 5 V peripherals without level shifters | Choose when maximum speed is critical and all connected devices are 3.3 V only |
Compared with SN74LVC245APWR and 74ALVC245PW,118, the 74LVT245PW,118 uniquely combines 5.5 V input tolerance, integrated bus-hold, and ±64 mA drive - making it the sole option for robust, mixed-voltage, high-drive industrial bus bridging without added passives.
Availability
74LVT245PW,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, embedded microcontroller expansion buses, automated test equipment signal routing, and medical imaging data acquisition modules requiring stable component supply across extended temperature ranges.
Supply support for 74LVT245PW,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 delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial and consumer electronics.
The 74LVT series targets high-speed, 3.3 V system-level bus interfacing with emphasis on robustness, mixed-voltage compatibility, and reduced external component count in space-constrained designs.
FAQ
What is the maximum input voltage the 74LVT245PW,118 can tolerate while powered at 3.3 V?
The device accepts input voltages up to 5.5 V regardless of VCC level - verified per datasheet Table 4 (VI max = 7.0 V with clamp current observed). This overvoltage tolerance enables direct interfacing with 5 V peripherals without level-shifting circuitry, and is implemented via internal clamping diodes rated for ±50 mA.
Does the 74LVT245PW,118 require external pull-up resistors on unused inputs?
No. The device integrates bus-hold circuitry on all A/B data pins, providing active current-based logic state retention (IBHL = 75–150 μA, IBHH = –150 to –75 μA). This eliminates the need for external pull-up or pull-down resistors on floating inputs, reducing BOM count and PCB area in high-pin-count interfaces.
How does the IOFF feature function during power-down sequences?
When VCC = 0 V, the IOFF circuitry disables all I/O paths, limiting power-off leakage current to ±100 μA (per datasheet Table 6). This prevents back-driving of powered subsystems and enables safe hot-swap operation - critical for modular test equipment and field-replaceable units where boards may be inserted while system power remains active.
Can the 74LVT245PW,118 be used in automotive applications?
No. The 74LVT245PW,118 is not AEC-Q100 qualified and lacks automotive-specific validation (e.g., extended temperature testing beyond +85 °C, enhanced ESD robustness, or zero-defect screening). Nexperia explicitly states non-automotive qualification in Section 14 of the datasheet; use requires full customer responsibility for qualification and risk assumption.
74LVT245PW,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
74LVT245PW,118 FAQ
1.How can I place an order for 74LVT245PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT245PW,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 74LVT245PW,118 reliable?
The price and inventory of 74LVT245PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT245PW,118 is usually 5 days.
3.What payment methods are accepted for 74LVT245PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVT245PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVT245PW,118?
74LVT245PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVT245PW,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 74LVT245PW,118?
For technical support, including 74LVT245PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT245PW,118 requirements.
6.How does Aetrix verify that 74LVT245PW,118 is sourced from the original manufacturer or authorized distributors?
All 74LVT245PW,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 74LVT245PW,118 meets industry standards.
7.What is the process for return or replacement of 74LVT245PW,118?
All 74LVT245PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT245PW,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 74LVT245PW,118 part is unused and in its original packaging.
Return procedure for 74LVT245PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVT245PW,118 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
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…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
