My Inquiry
My Account
Texas Instruments SN74LVC2G240DCTR
- Part No.:
- SN74LVC2G240DCTR
- Manufacturer:
- Texas Instruments
- Package:
- 8-LSSOP, 8-MSOP (0.110", 2.80mm Width)
- Datasheet:
-
SN74LVC2G240DCTR.pdf
- Description:
- IC BUFFER INVERT 5.5V SM8
- Quantity:
- Payment:
- Shipping:
Inventory:2,066
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74LVC2G240DCTR from Texas Instruments is a dual noninverting buffer/driver with independent 3-state outputs, designed for 1.65-V to 5.5-V VCC operation. It delivers ±24-mA output drive at 3.3 V, achieves 4.6-ns max propagation delay at 3.3 V, and supports input voltages up to 5.5 V - enabling level translation in mixed-voltage I/O interfaces such as memory address buffering and bus driving.
For engineers reviewing the SN74LVC2G240DCTR datasheet, SN74LVC2G240DCTR pinout, SN74LVC2G240DCTR application, or SN74LVC2G240DCTR equivalent, key selection considerations include its DCT (SSOP-8) package, Ioff-enabled live insertion support, ±24-mA drive strength at 3.3 V, 4.6-ns tpd, and compatibility with 1.65–5.5-V supply rails across industrial temperature range (–40°C to 125°C).
Technical Context
This device implements two independent 1-bit noninverting buffers, each with dedicated output-enable (OE) control. Each buffer passes A→Y when OE is low; outputs enter high-impedance state when OE is high. The Ioff circuitry disables outputs during partial power-down, preventing back-drive current and supporting hot-plug operation.
It features TTL-compatible inputs (VIH/VIL thresholds scale with VCC), robust ESD protection (2000-V HBM), and latch-up immunity exceeding 100 mA per JESD 78 Class II. Ground bounce (VOLP < 0.8 V) and VOH undershoot (VOHV > 2 V) are characterized at 3.3 V/25°C for signal integrity in fast-switching applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - enables interoperability across 1.8-V, 2.5-V, 3.3-V, and 5-V logic domains. |
| Max tpd | 4.6 ns at VCC = 3.3 V - ensures sub-5-ns timing margin for high-speed address/data buffering. |
| Output Drive | ±24 mA at VCC = 3.3 V - drives heavy capacitive loads or multiple CMOS inputs without external buffers. |
| Ioff Support | Active at VCC = 0 V - blocks current flow during live insertion or partial-power-down, protecting system integrity. |
| Input Voltage Range | –0.5 V to 5.5 V - accepts 5.5-V inputs while powered from lower VCC (e.g., 3.3 V), enabling down-translation. |
| Operating Temp | –40°C to 125°C - qualified for automotive under-hood, industrial control, and extended-temperature embedded systems. |
| ESD Rating | 2000-V HBM - meets standard reliability requirements for handling and board-level integration. |
Pinout & Package
SN74LVC2G240DCTR uses the SSOP-8 (DCT) package: 2.9 mm × 3.1 mm body, 1.3 mm max height, 0.65 mm lead pitch, gull-wing leads, pin 1 marked by notch or bevel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OE | Active-low enable for Buffer 1 - drives 1Y when low; places 1Y in high-Z when high. |
| 2 | 1A | Input for Buffer 1 - noninverting data path to 1Y; accepts up to 5.5 V regardless of VCC. |
| 3 | 2Y | Output for Buffer 2 - driven when 2OE is low; high-impedance when 2OE is high. |
| 4 | GND | Ground reference - must be connected to system ground plane for noise immunity and thermal stability. |
| 5 | 2A | Input for Buffer 2 - independent noninverting path to 2Y; electrically identical to 1A. |
| 6 | 2OE | Active-low enable for Buffer 2 - fully decoupled from 1OE for asymmetric control of outputs. |
| 7 | 1Y | Output for Buffer 1 - provides ±24-mA drive at 3.3 V; supports bus hold or termination via external resistors. |
| 8 | VCC | Supply voltage - powers both buffers and OE logic; requires local 0.1-µF ceramic bypass capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Independent 3-State Control | Separate 1OE and 2OE pins allow asynchronous enable/disable of each buffer - critical for time-multiplexed bus arbitration. |
| Down-Translation Capability | Accepts 5.5-V inputs while operating at VCC = 1.65–3.3 V - eliminates need for external level shifters in mixed-voltage systems. |
| NanoFree™ Package | DCT (SSOP-8) uses die-as-package construction - reduces parasitic inductance/capacitance for cleaner signal edges and improved EMI performance. |
| Live Insertion Support | Ioff limits off-state leakage to ±10 µA when VCC = 0 - enables safe hot-swap in modular backplane or docking station designs. |
| Low Dynamic Power | ICC ≤ 10 µA max at standby; Cpd = 1–3 pF per buffer - minimizes switching noise and power supply ripple in battery-sensitive applications. |
Applications
| Memory Address Buffering | Industrial Bus Interface |
|---|---|
|
Use Scenario: Driving address lines from a low-voltage microcontroller (1.8 V) to a 3.3-V SRAM or flash memory array with 15-pF trace capacitance. IC Role / Device Role: Dual noninverting buffer translating and strengthening address signals while isolating controller I/O from memory bus loading. Use Value: Enables reliable 1.8-V → 3.3-V address translation without external level shifters; ±24-mA drive handles full bus fanout. |
Use Scenario: Isolating PLC CPU I/O from noisy fieldbus transceivers (RS-485, CAN) in factory automation cabinets. IC Role / Device Role: Bidirectional bus driver with independent OE control, placed between MCU GPIO and transceiver enable/control lines. Use Value: Prevents bus contention during reset sequences; Ioff protects MCU during fieldbus power cycling or fault conditions. |
| Hot-Swappable Module Interface | Low-Power Sensor Hub Aggregation |
|
Use Scenario: Enabling/disabling communication paths between a mainboard and hot-pluggable daughter cards in telecom line cards. IC Role / Device Role: 3-state buffer controlling data/control lines between host and module; OE tied to presence-detect signal. Use Value: Eliminates back-drive risk during insertion/removal; NanoFree™ DCT package ensures minimal PCB footprint and thermal mass. |
Use Scenario: Aggregating digital outputs from multiple ultra-low-power sensors (I²C GPIO expanders, ADC status flags) into a single MCU interrupt line. IC Role / Device Role: Wired-OR logic implementation using open-drain-compatible 3-state outputs driven by sensor event flags. Use Value: Reduces MCU pin count; 10-µA max ICC extends battery life in wireless sensor nodes operating at 3.3 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G241DCTR | Inverting output polarity (A→Y̅); otherwise identical electrical specs, pinout, and package. | Required where signal inversion is needed in address/data path (e.g., active-low enable generation). | Select SN74LVC2G241DCTR only when inversion is functionally required; not a drop-in replacement for noninverting logic. |
| 74LVC2G125DCTR | Noninverting like SN74LVC2G240DCTR but lacks Ioff support; max drive ±24 mA at 3.3 V unchanged. | Not suitable for live insertion or partial-power-down systems; limited to always-powered applications. | Choose 74LVC2G125DCTR only in cost-sensitive, fixed-rail designs where Ioff is unnecessary and thermal/power constraints permit. |
Compared with SN74LVC2G240DCTR, SN74LVC2G241DCTR provides functional inversion without altering timing or drive capability, while 74LVC2G125DCTR trades Ioff protection for lower cost in static-power environments - neither offers pin-to-pin compatibility without logic or system-level revalidation.
Availability
SN74LVC2G240DCTR is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, and IoT edge node designs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant SSOP packaging.
Supply support for SN74LVC2G240DCTR 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 connectivity technologies, with decades of expertise in logic interface solutions.
The SN74LVC2G240 series belongs to TI's LVC (Low-Voltage CMOS) logic family, engineered for high-speed, low-power, mixed-voltage interfacing in space-constrained industrial and automotive applications.
FAQ
What is the maximum operating voltage for SN74LVC2G240DCTR?
The SN74LVC2G240DCTR supports a VCC range of 1.65 V to 5.5 V. Its absolute maximum supply voltage is 6.5 V, but sustained operation above 5.5 V violates recommended conditions and risks reliability degradation. Input pins tolerate up to 5.5 V regardless of VCC, enabling down-translation functionality in the SN74LVC2G240DCTR.
Does SN74LVC2G240DCTR support hot-swap or live insertion?
Yes, SN74LVC2G240DCTR supports live insertion via its Ioff feature. When VCC = 0 V, Ioff limits off-state current to ±10 µA, preventing damaging back-current flow through powered downstream circuitry. This makes SN74LVC2G240DCTR suitable for modular systems requiring hot-plug capability without additional protection circuitry.
What is the propagation delay of SN74LVC2G240DCTR at 3.3 V?
The maximum propagation delay (tpd) of SN74LVC2G240DCTR is 4.6 ns at VCC = 3.3 V, TA = 25°C, with CL = 50 pF. This value is measured from A to Y and from OE to Y (enable/disable). At –40°C to 125°C, tpd increases to 5.8 ns max under same conditions - a key timing parameter verified in the SN74LVC2G240DCTR datasheet.
Can SN74LVC2G240DCTR translate 5-V inputs to a 3.3-V system?
Yes, SN74LVC2G240DCTR accepts input voltages up to 5.5 V while operating at VCC = 3.3 V, functioning as a down-translator. Its VIH and VIL thresholds scale with VCC, ensuring correct logic interpretation. This eliminates external level shifters in mixed-voltage interfaces - a confirmed capability of the SN74LVC2G240DCTR per its datasheet specifications.
What package type does SN74LVC2G240DCTR use?
SN74LVC2G240DCTR uses the SSOP-8 (DCT) package: 2.9 mm × 3.1 mm body, 1.3 mm max height, 0.65 mm lead pitch, gull-wing leads, and pin 1 identified by a beveled corner. This package is distinct from the DCU (VSSOP-8) and YZP (DSBGA-8) variants - the SN74LVC2G240DCTR specifically references DCT in its orderable part number and TI packaging documentation.
SN74LVC2G240DCTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 8-LSSOP, 8-MSOP (0.110", 2.80mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 2
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SM8
SN74LVC2G240DCTR FAQ
1.How can I place an order for SN74LVC2G240DCTR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G240DCTR 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 SN74LVC2G240DCTR reliable?
The price and inventory of SN74LVC2G240DCTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G240DCTR is usually 5 days.
3.What payment methods are accepted for SN74LVC2G240DCTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G240DCTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC2G240DCTR?
SN74LVC2G240DCTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G240DCTR 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 SN74LVC2G240DCTR?
For technical support, including SN74LVC2G240DCTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G240DCTR requirements.
6.How does Aetrix verify that SN74LVC2G240DCTR is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G240DCTR 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 SN74LVC2G240DCTR meets industry standards.
7.What is the process for return or replacement of SN74LVC2G240DCTR?
All SN74LVC2G240DCTR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G240DCTR, 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 SN74LVC2G240DCTR part is unused and in its original packaging.
Return procedure for SN74LVC2G240DCTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74LVC2G240DCTR 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…
