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Nexperia USA Inc. 74LV245PW,118
- Part No.:
- 74LV245PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LV245PW,118.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:995
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Product details
Overview
74LV245PW,118 from Nexperia is an octal 3-state bus transceiver with bidirectional data flow controlled by DIR and active-low OE pins, operating across 1.0 V to 5.5 V supply, supporting TTL-level inputs at VCC ≥ 2.7 V, and rated for -40 °C to +125 °C industrial temperature range - used in voltage-level bridging between mixed-voltage microcontroller buses and peripheral interfaces.
For engineers reviewing the 74LV245PW,118 datasheet, 74LV245PW,118 pinout, 74LV245PW,118 application, or 74LV245PW,118 equivalent, this page delivers verified pin functions, real-world timing values (e.g., 7 ns tpd at 3.3 V), thermal derating behavior, and direct alternatives with documented functional divergence - all extracted from Nexperia's Rev. 6 product data sheet dated 4 July 2024.
Technical Context
The 74LV245PW,118 implements a dual-rail CMOS transceiver architecture with independent direction (DIR) and output enable (OE) control logic, enabling synchronous bidirectional data transfer between two 8-bit buses. Its input clamping diodes allow safe interfacing to voltages exceeding VCC when current-limiting resistors are used.
It supports three distinct operating modes: A→B (DIR = HIGH, OE = LOW), B→A (DIR = LOW, OE = LOW), and high-impedance isolation (OE = HIGH). Propagation delay varies with supply voltage - 7 ns typical at VCC = 3.3 V and CL = 15 pF, rising to 45 ns at VCC = 1.2 V - reflecting its optimized low-voltage performance profile.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.0 V to 5.5 V - enables interoperability across 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains without level shifters. |
| Propagation Delay (tpd) | 7 ns typical at VCC = 3.3 V, CL = 15 pF - ensures sub-10 ns bus turnaround in high-speed microcontroller peripheral interfaces. |
| Enable/Disable Time | 10 ns / 14 ns typical (ten/tdis) at VCC = 3.3 V - guarantees fast bus arbitration and dynamic bus sharing in multi-master systems. |
| Input Voltage Thresholds | VIL ≤ 0.8 V, VIH ≥ 2.0 V at VCC = 3.3 V - accepts standard TTL inputs and provides noise margin > 0.7 V under worst-case conditions. |
| Output Drive Strength | ±8 mA at VCC = 3.0 V (VOH/VOL), ±16 mA at VCC = 4.5 V - sufficient to drive 15 pF loads across PCB traces and multiple CMOS inputs. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets JEDEC JS-001 Class 2 and JS-002 Class C3 requirements for robust handling in manufacturing and field environments. |
| Operating Temperature | -40 °C to +125 °C - qualified for extended industrial and under-hood automotive auxiliary applications where ambient heat exceeds 85 °C. |
Pinout & Package
TSSOP20 plastic thin shrink small outline package (SOT360-1), 20-pin, 4.4 mm body width, 0.65 mm lead pitch, 1.1 mm max height - optimized for high-density PCB layouts with improved thermal dissipation over SO20.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DIR | Direction control input: HIGH enables A→B data flow; LOW enables B→A - critical for half-duplex bus arbitration. |
| 2–9 | A0–A7 | Port A data I/O: connects to microcontroller or master-side bus; inputs when DIR = LOW and OE = LOW, outputs when DIR = HIGH and OE = LOW. |
| 10 | GND | Ground reference (0 V) - must be low-inductance connection to minimize ground bounce (< 0.8 V typical at 3.3 V). |
| 11–18 | B0–B7 | Port B data I/O: connects to peripheral or slave-side bus; outputs when DIR = LOW and OE = LOW, inputs when DIR = HIGH and OE = LOW. |
| 19 | OE | Active-low output enable: HIGH forces all A/B outputs into high-impedance state - essential for bus contention avoidance. |
| 20 | VCC | Positive supply rail: decoupling capacitor (100 nF) required within 5 mm to suppress switching noise and maintain stable VOH/VOL. |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range (1.0 V to 5.5 V) | Eliminates need for external level translators when interfacing 1.2 V SoCs to 3.3 V peripherals or legacy 5 V subsystems. |
| Clamp diode-equipped inputs | Permits safe connection to signals up to VCC + 0.5 V using series current-limiting resistors - avoids damage during hot-plug or voltage overshoot events. |
| Latch-up immunity > 100 mA | Meets JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage or ESD events in noisy industrial environments. |
| Low dynamic power (CPD = 40 pF) | Reduces switching power dissipation to < 440 μW per transition at 3.3 V/1 MHz - critical for battery-powered or thermally constrained designs. |
| JEDEC-compliant voltage standards | Validated against JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), JESD8C (2.7–3.6 V), and JESD36 (4.5–5.5 V) - ensures interoperability across global logic families. |
Applications
| Industrial PLC Backplane Interface | Embedded Microcontroller Bus Extension |
|---|---|
Use Scenario: Bridging 3.3 V ARM Cortex-M4 MCU bus to legacy 5 V I/O modules in programmable logic controller chassis. IC Role / Device Role / Timing Role: Bidirectional level-translating transceiver managing time-critical digital I/O reads/writes with < 10 ns propagation delay and simultaneous bus isolation during mode switching. Use Value: Enables drop-in replacement of obsolete 5 V-only transceivers while maintaining full timing compliance and eliminating external voltage translators. |
Use Scenario: Expanding GPIO count on a space-constrained IoT sensor hub using shared 1.8 V I²C/SPI bus between MCU and multiple sensors. IC Role / Device Role / Timing Role: Direction-controlled bus repeater allowing bidirectional data flow between master and slave devices on a single shared trace pair. Use Value: Reduces PCB layer count by consolidating dual-direction signal routing into one compact TSSOP20 footprint with guaranteed 1.8 V operation. |
| Automotive Body Control Module (BCM) Subsystem | Test Equipment Digital Pattern Generator |
Use Scenario: Isolating and translating signals between 12 V domain-supplied CAN transceiver logic interface and 3.3 V microcontroller in BCM housing. IC Role / Device Role / Timing Role: High-impedance bus isolator activated via OE during firmware updates to prevent spurious bus activity affecting CAN communication integrity. Use Value: Provides fail-safe bus partitioning with -40 °C to +125 °C qualification and latch-up immunity > 100 mA - meeting ISO 16750-4 pulse test requirements. |
Use Scenario: Driving precise digital stimulus patterns from FPGA-based pattern generator to DUT requiring 5 V TTL-compatible inputs. IC Role / Device Role / Timing Role: Output buffer stage converting low-voltage FPGA outputs to robust 5 V logic levels with < 11 ns propagation delay and < 0.55 V VOL at 16 mA sink. Use Value: Delivers clean, fast edge transitions with minimal ground bounce (< 0.8 V), ensuring accurate timing margins for high-speed digital test vectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal 3-state bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC245APWR | Wider VCC range (1.65 V to 3.6 V); lower tpd (5.3 ns @ 3.3 V); no clamp diodes on inputs. | Not suitable for interfacing to voltages > VCC; requires external protection if driving from higher-voltage sources. | Select when only 1.65–3.6 V operation is needed and absolute minimum propagation delay is prioritized over input overvoltage tolerance. |
| 74ALVC245PW,118 | Faster tpd (3.2 ns @ 3.3 V); higher ICC (max 40 μA vs. 20 μA); same pinout and VCC range (1.65–3.6 V). | Higher static current and no 1.0 V operation - unsuitable for ultra-low-power or sub-1.65 V systems. | Choose for speed-critical applications where 1.0 V operation is unnecessary and 3.2 ns latency justifies increased power consumption. |
Compared with SN74LVC245APWR and 74ALVC245PW,118, the 74LV245PW,118 uniquely supports 1.0 V operation and includes input clamp diodes - making it the only option among the three for mixed-voltage systems with potential overvoltage transients and ultra-low-power sleep modes.
Availability
74LV245PW,118 is available at Aetrix Electronics and suitable for industrial PLC backplane interfaces, embedded microcontroller bus extensions, automotive body control modules, and automated test equipment requiring stable component supply across extended temperature ranges and mixed-voltage domains.
Supply support for 74LV245PW,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 leading Dutch semiconductor manufacturer specializing in high-performance, energy-efficient logic, analog, and discrete components - founded as a spin-off from NXP Semiconductors in 2017 and now part of Beijing JianGuang Asset Management Co., Ltd.
The 74LV245 belongs to Nexperia's LV (Low Voltage) logic family, engineered for reliable operation from 1.0 V upward in space-constrained, thermally demanding industrial and automotive-adjacent applications - emphasizing robustness, wide VCC tolerance, and JEDEC-compliant interoperability.
FAQ
Can the 74LV245PW,118 operate at 1.2 V with full timing guarantees?
Yes. The device is fully characterized down to 1.2 V for static parameters (VIH/VIL, VOH/VOL) and supports functional operation at 1.0 V, though propagation delay increases to 45 ns at VCC = 1.2 V. All DC specs are guaranteed across -40 °C to +125 °C at VCC ≥ 1.2 V.
What is the maximum capacitive load the 74LV245PW,118 can drive while maintaining specified timing?
The 74LV245PW,118 is tested and specified with CL = 15 pF for tpd ≤ 7 ns at VCC = 3.3 V. At CL = 50 pF, propagation delay increases to ≤ 9 ns, and CPD remains 40 pF - confirming stable operation up to 50 pF with predictable timing degradation.
Does the OE pin require a pull-up resistor in systems with open-drain control logic?
No. OE is a CMOS input with ±1.0 μA leakage current at VCC = 5.5 V. It may float to indeterminate state if unconnected; however, a 10 kΩ pull-up to VCC is recommended only in systems where default high-impedance state is required at power-up - not due to drive strength limitations.
How does the 74LV245PW,118 handle input voltages exceeding VCC?
Its integrated input clamp diodes allow safe operation with VI up to VCC + 0.5 V when series current-limiting resistors restrict IIK to ≤ ±20 mA. This enables direct connection to higher-voltage buses (e.g., 5 V signals into 3.3 V system) without external diodes or translators.
74LV245PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LV
- 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:
- 16mA, 16mA
- Voltage - Supply:
- 1V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74LV245PW,118 FAQ
1.How can I place an order for 74LV245PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV245PW,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 74LV245PW,118 reliable?
The price and inventory of 74LV245PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV245PW,118 is usually 5 days.
3.What payment methods are accepted for 74LV245PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV245PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV245PW,118?
74LV245PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV245PW,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 74LV245PW,118?
For technical support, including 74LV245PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV245PW,118 requirements.
6.How does Aetrix verify that 74LV245PW,118 is sourced from the original manufacturer or authorized distributors?
All 74LV245PW,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 74LV245PW,118 meets industry standards.
7.What is the process for return or replacement of 74LV245PW,118?
All 74LV245PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV245PW,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 74LV245PW,118 part is unused and in its original packaging.
Return procedure for 74LV245PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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