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Texas Instruments SN74LVC1G240YEPR
- Part No.:
- SN74LVC1G240YEPR
- Manufacturer:
- Texas Instruments
- Package:
- 5-XFBGA, DSBGA
- Datasheet:
-
SN74LVC1G240YEPR.pdf
- Description:
- IC BUF INVERT 5.5V 5DSBGA/5WCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,381
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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 low-voltage 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 I²C bus buffering.
For engineers reviewing the SN74LVC1G240 datasheet, SN74LVC1G240 pinout, SN74LVC1G240 application, or SN74LVC1G240 equivalent, key selection criteria include its 3-state control timing (enable/disable), Ioff partial-power-down capability, overvoltage-tolerant inputs, and NanoFree™ package compatibility with space-constrained PCB layouts.
Technical Context
The SN74LVC1G240 implements a CMOS-based inverting logic gate with active-low 3-state enable (OE), where output Y = NOT(A) when OE is low and enters high-impedance when OE is high. Its input structure includes overvoltage-tolerant circuitry allowing VI up to 5.5V independent of VCC, and its output stage features balanced sourcing/sinking capability with Ioff protection that disables all outputs at 0V supply.
Functional behavior is defined by a truth table with three modes: active inversion (A→Y̅), disabled (high-Z), and power-down safe state (Ioff). The device complies with JEDEC JESD78 Class II latch-up immunity (>100mA) and supports operation across –40°C to 125°C ambient temperature with CL = 15–50pF load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65V to 5.5V - enables interoperability between 1.8V, 2.5V, 3.3V, and 5V logic domains |
| Input Voltage Tolerance | Up to 5.5V - allows direct connection to higher-voltage controllers without level shifters |
| Max Propagation Delay | 3.7ns at 3.3V/CL=15pF - supports >100MHz signal re-driving in short-trace applications |
| Output Drive Strength | ±24mA at 3.3V - sufficient to drive LEDs, transmission lines, or multiple CMOS inputs |
| Ioff Current | ±10μA max - ensures safe live insertion and back-drive protection during partial power-down |
| Operating Temperature | –40°C to +125°C - qualified for automotive under-hood and industrial control environments |
| ESD Rating (HBM) | ±2000V - meets standard handling requirements for automated assembly and field service |
Pinout & Package
SN74LVC1G240 is available in multiple ultra-small packages including DBV (SOT-23-5), DCK (SC70-5), YZP (DSBGA-5), DRY (SON-6), and DSF (SON-6). The YZP (DSBGA-5) variant measures 1.39mm × 0.89mm and is used in the SN74LVC1G240YEPR orderable part.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OE | Active-low 3-state enable input | Drives output Y into high-impedance when high; tie to VCC via pullup resistor for power-up safety |
| 2 - A | Inverting data input | Accepts voltages up to 5.5V regardless of VCC; CMOS-compatible with fast transition requirement |
| 3 - GND | Ground reference | Return path for all internal currents; must be low-impedance and adjacent to decoupling capacitor |
| 4 - Y | Inverting 3-state output | Provides true inverted signal when OE is low; floats to high-Z when OE is high |
| 5 - VCC | Power supply | Supplies core logic and output drivers; requires local 0.1μF bypass capacitor per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ packaging | YZP (DSBGA-5) footprint of 1.39mm × 0.89mm enables ultra-dense routing in portable and wearable electronics |
| 5.5V-tolerant inputs | Allows interfacing with legacy 5V peripherals while powered from 1.8V or 2.5V rails - eliminates external level translators |
| Ioff partial-power-down | Prevents current backflow and signal corruption when VCC is off but inputs remain active - critical for hot-swap systems |
| Low ICC standby current | 10μA max ICC ensures minimal battery drain in always-on sensor nodes or sleep-mode MCU peripherals |
| Fast 3-state switching | Enable/disable times ≤5.4ns (tdis/ten) support dynamic bus arbitration in multi-master digital systems |
Applications
| LED Indicator Control | Digital Signal Redriving |
|---|---|
Use Scenario: Driving an LED from a low-current GPIO pin of an ARM Cortex-M0+ microcontroller operating at 3.3V. IC Role / Device Role / Timing Role: Inverting buffer with 3-state output acts as current-amplifying interface, converting weak logic-level signals into 24mA sink capability for visible LED illumination. Use Value: Eliminates need for discrete transistor driver; built-in Ioff prevents LED glow during MCU reset or sleep states. | Use Scenario: Reconditioning degraded clock or data edges on a 10cm PCB trace connecting FPGA to ADC. IC Role / Device Role / Timing Role: Single inverting buffer restores signal integrity by providing clean, low-skew, rail-to-rail output swing with controlled edge rates. Use Value: 3.7ns tpd and ±24mA drive ensure reliable timing margin at 50MHz; 3-state allows shared bus isolation during configuration. |
| Transmission Line Termination | Controller Reset Hold Function |
Use Scenario: Driving a 50Ω coaxial cable carrying UART debug data from a SoC to external test equipment. IC Role / Device Role / Timing Role: Output driver matches line impedance and provides sufficient current to maintain signal amplitude over 1m distance. Use Value: Balanced sourcing/sinking reduces reflections; 5.5V-tolerant inputs accept TTL-level debug signals even when SoC runs at 1.8V. | Use Scenario: Holding a system reset line low during boot sequence until voltage regulators stabilize. IC Role / Device Role / Timing Role: Inverter with OE tied to power-good signal holds inverted reset assertion until supply reaches regulation threshold. Use Value: Enables precise reset timing control using simple RC + comparator; 3-state avoids contention with other reset sources during power-up. |
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 |
|---|---|---|---|
| SN74LVC1G04YEPR | No 3-state output; fixed inverting buffer only | Cannot disable output; unsuitable for bus sharing or dynamic isolation | Select only if continuous inversion is required and no bus contention risk exists |
| SN74LVC1G125YEPR | Non-inverting 3-state buffer; identical pinout and electrical specs | Preserves signal polarity instead of inverting - required for non-inverted control paths | Choose when logic polarity must be maintained; drop-in replacement except for functional inversion |
Compared with SN74LVC1G240YEPR, SN74LVC1G04YEPR lacks bus isolation capability, while SN74LVC1G125YEPR offers identical timing and drive but preserves input polarity - making it the preferred alternative when signal inversion is not desired.
Availability
SN74LVC1G240YEPR is available at Aetrix Electronics and suitable for LED indicator control, digital signal redriving, transmission line termination, and controller reset hold functions requiring stable component supply and long-term industrial availability.
Supply support for SN74LVC1G240YEPR 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 and embedded processing technologies, with decades of experience in logic IC design and manufacturing.
The SN74LVC1G240 belongs to TI's LVC (Low-Voltage CMOS) logic family, engineered for low-power, high-speed interfacing in portable, industrial, and automotive systems where voltage translation and bus isolation are essential.
FAQ
What is the function of the OE pin on the SN74LVC1G240YEPR?
The OE (Output Enable) pin on the SN74LVC1G240YEPR is an active-low control input that places the output Y in high-impedance state when driven high, and enables normal inverting operation (Y = NOT(A)) when driven low. To ensure high-Z during power-up, TI recommends tying OE to VCC through a pullup resistor - minimum value determined by the driver's current-sinking capability.
Can SN74LVC1G240YEPR operate with a 1.8V supply while accepting 3.3V input signals?
Yes, SN74LVC1G240YEPR supports 5.5V-tolerant inputs, meaning it can reliably accept 3.3V (or up to 5.5V) logic-high signals even when powered from a 1.8V VCC supply. This overvoltage tolerance eliminates the need for external level-shifting circuitry in mixed-voltage systems, simplifying design and reducing BOM cost.
What is the maximum capacitive load SN74LVC1G240YEPR can drive while maintaining specified timing?
SN74LVC1G240YEPR maintains full specification compliance with capacitive loads up to 50pF. For loads exceeding 50pF, TI recommends adding a series damping resistor near the output to limit peak current and prevent ringing. The device's ±24mA drive strength at 3.3V supports robust edge rates into typical PCB traces and small IC inputs without signal degradation.
Does SN74LVC1G240YEPR support hot-swap or live-insertion applications?
Yes, SN74LVC1G240YEPR includes Ioff circuitry that disables all outputs when VCC = 0V, preventing current backflow and signal corruption during live insertion or partial power-down. With Ioff leakage limited to ±10μA, the device safely isolates powered and unpowered sections of a backplane or modular system without requiring additional protection components.
Which package type corresponds to the SN74LVC1G240YEPR orderable part number?
The SN74LVC1G240YEPR uses the YZP package - a 5-ball, 1.39mm × 0.89mm DSBGA (Die Size Ball Grid Array) with 0.4mm ball pitch. This NanoFree™ package provides the smallest footprint among SN74LVC1G240 variants and is optimized for space-constrained applications such as wearables, medical sensors, and ultra-thin consumer devices.
SN74LVC1G240YEPR 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)
SN74LVC1G240YEPR FAQ
1.How can I place an order for SN74LVC1G240YEPR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC1G240YEPR 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 SN74LVC1G240YEPR reliable?
The price and inventory of SN74LVC1G240YEPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC1G240YEPR is usually 5 days.
3.What payment methods are accepted for SN74LVC1G240YEPR?
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4.How is shipping managed for SN74LVC1G240YEPR?
SN74LVC1G240YEPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC1G240YEPR 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 SN74LVC1G240YEPR?
For technical support, including SN74LVC1G240YEPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC1G240YEPR requirements.
6.How does Aetrix verify that SN74LVC1G240YEPR is sourced from the original manufacturer or authorized distributors?
All SN74LVC1G240YEPR 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 SN74LVC1G240YEPR meets industry standards.
7.What is the process for return or replacement of SN74LVC1G240YEPR?
All SN74LVC1G240YEPR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC1G240YEPR, 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 SN74LVC1G240YEPR part is unused and in its original packaging.
Return procedure for SN74LVC1G240YEPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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