My Inquiry
My Account
Nexperia USA Inc. 74LVT240PW,118
- Part No.:
- 74LVT240PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVT240PW,118.pdf
- Description:
- IC BUFFER INVERT 3.6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,059
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LVT240PW,118 from Nexperia is an octal inverting 3-state buffer/line driver operating at 3.3 V nominal supply, featuring dual independent output enables (1OE, 2OE), ±32 mA/±64 mA drive capability, and 5.5 V-tolerant inputs. It functions as two 4-bit or one 8-bit bus interface in high-speed digital systems requiring level translation between 3.3 V logic and legacy 5 V buses.
For engineers reviewing the 74LVT240PW,118 datasheet, 74LVT240PW,118 pinout, 74LVT240PW,118 application, or 74LVT240PW,118 equivalent, key selection criteria include its BiCMOS output drive strength, bus-hold input circuitry eliminating external pull-ups, live insertion support, and guaranteed operation across -40 °C to +85 °C.
Technical Context
The 74LVT240PW implements two independent 4-bit inverting buffer sections, each controlled by a dedicated active-low output enable (1OE for Y0–Y3, 2OE for Y0–Y3 of second group). Its BiCMOS architecture delivers TTL-compatible input thresholds and 5 V-tolerant inputs while sourcing up to 64 mA and sinking up to 32 mA per output.
Bus-hold circuitry maintains stable logic states on unused inputs without external resistors, and IOFF protection ensures negligible leakage during partial power-down. Propagation delays are specified down to 1.0 ns (typ) at 3.3 V, with tPZH/tPLZ enabling fast 3-state transitions critical for hot-swap and shared-bus applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - Ensures compatibility with 3.3 V systems while tolerating rail variation without functional loss. |
| Input Voltage Range | 0 V to 5.5 V - Enables direct interfacing with 5 V TTL outputs without level shifters. |
| Output Drive | +64 mA / –32 mA - Supports driving heavy capacitive loads or multiple TTL inputs on shared buses. |
| Propagation Delay | 1.0–4.3 ns (typ/max at 3.3 V) - Enables operation in high-speed address/data bus applications up to ~200 MHz. |
| Operating Temperature | –40 °C to +85 °C - Qualified for industrial-grade embedded control and communications equipment. |
| Bus-Hold Current | ±75 μA to ±150 μA - Maintains defined logic state on floating inputs, removing need for external pull-up/down resistors. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Provides robust handling during board assembly and field service. |
Pinout & Package
TSSOP20 package (SOT360-1), 20-pin thin shrink small outline, body width 4.4 mm, pitch 0.65 mm, lead count 20, RoHS-compliant surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low output enables - 1OE controls 1Y0–1Y3; 2OE controls 2Y0–2Y3; both must be LOW for active output. |
| 2, 4, 6, 8 | 1A0–1A3 | Data inputs for first 4-bit inverting buffer section - inverted and driven to corresponding 1Yn outputs. |
| 11, 13, 15, 17 | 2A0–2A3 | Data inputs for second 4-bit inverting buffer section - inverted and driven to corresponding 2Yn outputs. |
| 18, 16, 14, 12 | 1Y0–1Y3 | Inverted 3-state outputs for first section - HIGH-impedance when 1OE = HIGH. |
| 9, 7, 5, 3 | 2Y0–2Y3 | Inverted 3-state outputs for second section - HIGH-impedance when 2OE = HIGH. |
| 10 | GND | Ground reference - required return path for all internal logic and output current. |
| 20 | VCC | Positive supply - powers internal BiCMOS circuitry; decoupling capacitor recommended near pin. |
Key Features
| Feature | Design Value |
|---|---|
| BiCMOS output stage | Delivers +64 mA source / –32 mA sink drive while maintaining low propagation delay and high noise immunity. |
| 5.5 V-tolerant inputs | Accepts 5 V TTL signals directly into 3.3 V system without clamping diodes or external level translators. |
| Bus-hold inputs | Eliminates need for external pull-up resistors on unused data lines, reducing BOM count and PCB area. |
| IOFF partial power-down | Prevents back-driving and leakage current when VCC = 0 V, enabling safe hot insertion into live backplanes. |
| Live insertion/extraction support | Guaranteed functionality during hot-plug operations in modular computing and telecom chassis applications. |
Applications
| Industrial PLC Backplane Interface | Legacy System Bus Translation |
|---|---|
Use Scenario: Interfacing 3.3 V microcontroller I/O ports to legacy 5 V parallel control buses in programmable logic controllers. IC Role / Device Role / Timing Role: Inverting 3-state buffer providing voltage-level translation, bus contention control, and signal integrity preservation. Use Value: Eliminates discrete level shifters and pull-up networks while supporting hot-swappable I/O modules via IOFF and bus-hold. |
Use Scenario: Connecting modern FPGA-based subsystems to older 5 V ISA or VMEbus peripherals in test instrumentation. IC Role / Device Role / Timing Role: Octal inverting driver managing bidirectional data flow with precise 3-state timing for bus arbitration. Use Value: Delivers sub-5 ns propagation delay and 64 mA drive to meet setup/hold timing margins on legacy 5 V buses. |
| Telecom Line Card Data Multiplexing | Embedded Control Bus Isolation |
Use Scenario: Multiplexing multiple 3.3 V processor address/data lines onto a shared 5 V backplane in modular telecom line cards. IC Role / Device Role / Timing Role: Dual-enable 8-bit buffer enabling selective activation of bus segments without contention. Use Value: Independent 1OE/2OE pins allow time-multiplexed access to same physical bus by separate controller domains. |
Use Scenario: Isolating MCU GPIO banks from noisy motor driver or sensor acquisition circuits in industrial HMI panels. IC Role / Device Role / Timing Role: Inverting buffer with 3-state outputs acting as direction-controlled signal isolator and noise barrier. Use Value: Bus-hold prevents floating inputs during reset; high sink/source current suppresses EMI-induced glitches on long traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal inverting 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC240APWR | Lower drive (+24 mA/–24 mA); 1.65–3.6 V supply; no bus-hold; no 5 V-tolerant inputs. | Suitable only for pure 3.3 V or mixed-voltage systems with external level translation. | Select when cost sensitivity outweighs drive strength and 5 V interface needs. |
| 74ALVC240PW,118 | Same TSSOP20 package; lower ICC (0.04 mA typ); identical 5 V-tolerant inputs and bus-hold; slightly slower max tPD (5.5 ns). | Drop-in replacement where lower static power is prioritized over marginal speed loss. | Prefer for battery-powered or thermally constrained designs where 1 ns delay penalty is acceptable. |
Compared with SN74LVC240APWR, the 74LVT240PW,118 provides higher drive strength and native 5 V tolerance, eliminating external components; versus 74ALVC240PW,118, it trades 0.5 ns speed advantage for marginally higher ICC, making it optimal for performance-critical bus interfaces.
Availability
74LVT240PW,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, telecom line card interconnects, and embedded control bus isolation requiring stable component supply, full temperature range qualification, and long-term lifecycle continuity.
Supply support for 74LVT240PW,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 manufacturability in high-volume applications.
The 74LVT240 belongs to Nexperia's LVT (Low-Voltage Technology) logic family, engineered for high-speed 3.3 V bus interfacing with backward compatibility to 5 V systems in industrial and communications infrastructure.
FAQ
What is the maximum clock frequency supported by the 74LVT240PW,118?
The 74LVT240PW,118 does not operate as a clocked device but as a combinatorial buffer. Its 1.0 ns typical propagation delay at 3.3 V supports reliable operation in data/address bus applications up to approximately 200 MHz, assuming proper PCB layout, load capacitance ≤50 pF, and termination.
Can the 74LVT240PW,118 safely drive a 5 V bus while powered from 3.3 V?
Yes - its outputs are designed to interface directly with 5 V buses. When enabled, outputs swing rail-to-rail within the 3.3 V supply, and the 5.5 V-tolerant inputs accept 5 V signals. No external level-shifting components are needed for bidirectional 3.3 V ↔ 5 V interfacing.
How does the bus-hold feature eliminate external pull-up resistors?
Each input incorporates a weak feedback transistor network that sources or sinks ~75–150 μA to maintain the last valid logic state. This holds unused or unterminated inputs at defined HIGH or LOW levels, removing risk of oscillation or ESD susceptibility without adding discrete resistors.
Is the 74LVT240PW,118 qualified for automotive applications?
No - this device is rated for industrial temperature range (–40 °C to +85 °C) and is not AEC-Q100 qualified. Nexperia explicitly states non-automotive qualification in its legal disclaimers; use in automotive systems requires formal validation and is at the customer's sole risk.
74LVT240PW,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:
- Buffer, Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 4
- 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
74LVT240PW,118 FAQ
1.How can I place an order for 74LVT240PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT240PW,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 74LVT240PW,118 reliable?
The price and inventory of 74LVT240PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT240PW,118 is usually 5 days.
3.What payment methods are accepted for 74LVT240PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVT240PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVT240PW,118?
74LVT240PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVT240PW,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 74LVT240PW,118?
For technical support, including 74LVT240PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT240PW,118 requirements.
6.How does Aetrix verify that 74LVT240PW,118 is sourced from the original manufacturer or authorized distributors?
All 74LVT240PW,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 74LVT240PW,118 meets industry standards.
7.What is the process for return or replacement of 74LVT240PW,118?
All 74LVT240PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT240PW,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 74LVT240PW,118 part is unused and in its original packaging.
Return procedure for 74LVT240PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVT240PW,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…
