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Texas Instruments SN74LVC1G240YZAR
- Part No.:
- SN74LVC1G240YZAR
- Manufacturer:
- Texas Instruments
- Package:
- 5-XFBGA, DSBGA
- Datasheet:
-
SN74LVC1G240YZAR.pdf
- Description:
- IC BUF INVERT 5.5V 5DSBGA/5WCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,497
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Product details
Overview
SN74LVC1G240 from Texas Instruments is a single-channel inverting buffer/driver with 3-state output, designed for signal conditioning and bus isolation in space-constrained digital systems. It operates from 1.65V to 5.5V, delivers ±24mA drive at 3.3V, achieves 3.7ns max propagation delay, and supports 5.5V-tolerant inputs - enabling use in mixed-voltage interfaces such as microcontroller GPIO expansion or LED driver control.
For engineers reviewing the SN74LVC1G240 datasheet, SN74LVC1G240 pinout, SN74LVC1G240 application, or SN74LVC1G240 equivalent, key selection criteria include 3-state enable timing (ten/tdis), Ioff-enabled live insertion capability, low ICC (≤10μA), overvoltage-tolerant inputs, and NanoFree™ DSBGA packaging for ultra-compact PCB layouts.
Technical Context
The SN74LVC1G240 implements a CMOS-based inverting logic gate with active-low 3-state control: when OE is low, A is inverted and driven to Y; when OE is high, Y enters high-impedance state. Its balanced CMOS output stage provides symmetrical sourcing/sinking capability, critical for clean signal integrity on shared buses.
It features partial-power-down protection (Ioff) that disables all outputs at 0V VCC, preventing back-drive current and enabling hot-swap compatibility. Input clamping diodes and overvoltage tolerance (up to 5.5V independent of VCC) allow safe interfacing with higher-voltage logic domains without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65V to 5.5V - supports direct interface with 1.8V, 2.5V, 3.3V, and 5V logic families |
| tpd (max) | 3.7ns at 3.3V/CL=15pF - enables reliable operation in high-speed digital paths up to ~270MHz |
| I/O Drive | ±24mA at 3.3V - sufficient to directly drive LEDs, transmission lines, or multiple CMOS inputs |
| Input Voltage | Up to 5.5V regardless of VCC - eliminates need for external level translation in mixed-supply systems |
| ICC (max) | 10μA - ensures minimal quiescent power in battery-powered or always-on monitoring circuits |
| Ioff Leakage | ±10μA at 5.5V - guarantees safe live insertion and prevents back-driving during partial power-down |
| ESD Rating | ±2000V HBM - meets industrial-grade robustness requirements for handling and board assembly |
Pinout & Package
SN74LVC1G240 is packaged in YZP (5-pin DSBGA), measuring 1.39mm × 0.89mm - Texas Instruments' NanoFree™ package with bottom-side solder balls for minimal footprint and thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Input Enable | Active-low 3-state control: OE = low → enabled inversion; OE = high → Y = high-Z |
| 2 (A) | Input | Inverting logic input; accepts 0–5.5V signals regardless of VCC |
| 3 (GND) | Ground | Reference return path for all currents; must be low-impedance for noise immunity |
| 4 (Y) | Output | Inverted, 3-state output with ±24mA drive capability and Ioff protection |
| 5 (VCC) | Supply | Core logic supply (1.65–5.5V); powers internal circuitry and defines VOH/VOL levels |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ DSBGA package | 1.39mm × 0.89mm footprint - reduces PCB area by >70% vs. SOT-23, ideal for wearables and portable devices |
| 5.5V-tolerant inputs | Enables direct connection to legacy 5V logic without external resistors or translators |
| Ioff partial-power-down | Prevents current flow between powered/unpowered sections - essential for modular hot-plug systems |
| Low 3.7ns propagation delay | Supports timing-critical re-driving of clocks or data signals in high-speed serial links |
| ±24mA output drive | Drives 15pF loads at <4ns while maintaining rail-to-rail swing - suitable for fanout to 10+ CMOS inputs |
Applications
| LED Indicator Control | Digital Signal Redriving |
|---|---|
Use Scenario: Driving a status LED from a low-drive MCU GPIO pin with voltage mismatch (e.g., 1.8V MCU controlling 3.3V LED anode). IC Role / Device Role / Timing Role: Inverting buffer with 3-state output acting as level-translating current amplifier and enable-controlled output gate. Use Value: Eliminates discrete transistor + resistor solution; uses single 1.39mm × 0.89mm chip with 5.5V-tolerant input to accept 1.8V logic and drive 3.3V LED at 20mA. | Use Scenario: Re-timing and strengthening a degraded clock or data signal traveling across a 10cm PCB trace with >10pF capacitance. IC Role / Device Role / Timing Role: Single-bit inverting repeater with precise 3.7ns tpd and matched rise/fall characteristics to restore edge integrity. Use Value: Restores signal slew rate and noise margin without adding jitter; 3-state capability allows dynamic bus arbitration during system reset sequences. |
| Transmission Line Driving | Controller Reset Hold |
Use Scenario: Driving a 50Ω coaxial or PCB microstrip line carrying UART or SPI signals between boards. IC Role / Device Role / Timing Role: Low-capacitance (4pF Ci), high-drive buffer providing controlled impedance matching and fast edge generation. Use Value: Delivers clean 3.3V signal into 50Ω load with <4ns edges, minimizing reflections; Ioff prevents signal corruption during power sequencing. | Use Scenario: Holding a peripheral's enable line in inactive state during microcontroller reset to prevent spurious initialization. IC Role / Device Role / Timing Role: 3-state inverter used as reset-synchronized output latch - OE tied to reset signal, A held static. Use Value: Ensures peripheral remains disabled until firmware explicitly releases OE; high-Z output avoids contention with other reset-driven signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar inverting buffer with 3-state output applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G04YZPR | No 3-state output; fixed inverting buffer only | Cannot disable output - unsuitable for bus sharing or dynamic signal gating | Select only if continuous inversion is required and OE control is unnecessary |
| SN74LVC1G125YZPR | Non-inverting 3-state buffer; identical pinout, specs, and package | Preserves input polarity - used where signal inversion is not desired | Drop-in replacement when logic function requires true (not inverted) output behavior |
Compared with SN74LVC1G04YZPR, SN74LVC1G240 adds critical 3-state control for bus management; compared with SN74LVC1G125YZPR, it provides complementary logic polarity - both alternatives share identical NanoFree™ DSBGA packaging and electrical specs except functional direction.
Availability
SN74LVC1G240 is available at Aetrix Electronics and suitable for LED indicator control, digital signal redriving, transmission line driving, and controller reset hold applications requiring stable component supply, long-term lifecycle support, and consistent NanoFree™ packaging.
Supply support for SN74LVC1G240 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of expertise in high-reliability, low-power digital IC design.
The SN74LVC1G240 belongs to TI's LVC (Low-Voltage CMOS) logic family - engineered for interoperability across voltage domains, minimal power consumption, and robust operation in portable, industrial, and automotive environments.
FAQ
What is the maximum operating temperature range for the SN74LVC1G240?
The SN74LVC1G240 is rated for operation from –40°C to +125°C ambient temperature. This extended industrial temperature range ensures reliable performance in demanding environments such as automotive under-hood modules, industrial PLC I/O cards, and outdoor IoT sensor nodes - all while maintaining specified tpd, drive strength, and leakage parameters per the SCES305M datasheet.
Does the SN74LVC1G240 require external pull-up resistors on the OE pin?
Yes - to ensure the output remains in high-impedance during power-up or power-down, the OE pin must be tied to VCC via an external pull-up resistor. The minimum resistance value depends on the current-sinking capability of the driving source; a typical 10kΩ resistor satisfies most designs while guaranteeing fast, deterministic enable/disable transitions for the SN74LVC1G240.
Can the SN74LVC1G240 safely interface a 5V sensor output with a 1.8V microcontroller input?
Yes - the SN74LVC1G240 accepts input voltages up to 5.5V independent of VCC, making it ideal for translating 5V sensor signals down to 1.8V logic levels. When powered at 1.8V, its output swings rail-to-rail (0V/1.8V), delivering a fully compatible signal to the microcontroller - no external level shifter or voltage divider is needed for this interface using the SN74LVC1G240.
What is the purpose of the Ioff specification in the SN74LVC1G240 datasheet?
The Ioff specification defines the maximum leakage current (±10μA) when VCC = 0V - ensuring the SN74LVC1G240 outputs remain effectively disconnected during partial power-down. This prevents back-driving of powered circuitry, protects against latch-up, and enables safe live insertion in modular systems - a critical feature confirmed in the SN74LVC1G240's JESD78 Class II latch-up rating (>100mA).
Is the SN74LVC1G240 pin-compatible with other 5-pin NanoFree™ logic devices?
Yes - the SN74LVC1G240 in YZP package shares identical 5-ball DSBGA layout (1.39mm × 0.89mm) and pin assignment (OE-A-GND-Y-VCC) with TI's SN74LVC1G125, SN74LVC1G04, and SN74LVC1G07. This enables drop-in functional substitution across inverting/non-inverting and open-drain variants without PCB redesign - a verified mechanical and routing compatibility documented in TI's NanoFree™ packaging guidelines for the SN74LVC1G240 family.
SN74LVC1G240YZAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 5-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 32mA
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-DSBGA (1.4x0.9)
SN74LVC1G240YZAR FAQ
1.How can I place an order for SN74LVC1G240YZAR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC1G240YZAR 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 SN74LVC1G240YZAR reliable?
The price and inventory of SN74LVC1G240YZAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC1G240YZAR is usually 5 days.
3.What payment methods are accepted for SN74LVC1G240YZAR?
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4.How is shipping managed for SN74LVC1G240YZAR?
SN74LVC1G240YZAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC1G240YZAR 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 SN74LVC1G240YZAR?
For technical support, including SN74LVC1G240YZAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC1G240YZAR requirements.
6.How does Aetrix verify that SN74LVC1G240YZAR is sourced from the original manufacturer or authorized distributors?
All SN74LVC1G240YZAR 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 SN74LVC1G240YZAR meets industry standards.
7.What is the process for return or replacement of SN74LVC1G240YZAR?
All SN74LVC1G240YZAR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC1G240YZAR, 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 SN74LVC1G240YZAR part is unused and in its original packaging.
Return procedure for SN74LVC1G240YZAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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