My Inquiry
My Account
Texas Instruments SN74LVC2G240DCT3
- Part No.:
- SN74LVC2G240DCT3
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
SN74LVC2G240DCT3.pdf
- Description:
- BUFFER, LVC/LCX/Z SERIES
- Quantity:
- Payment:
- Shipping:
Inventory:30,299
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74LVC2G240DCT3 from Texas Instruments is a dual inverting 3-state buffer/line driver in a VSSOP-8 package, operating from 1.65 V to 5.5 V supply, with ±24 mA output drive at 3.0 V, Schmitt-trigger inputs for noise immunity, and 5 V-tolerant I/O enabling mixed-voltage interfacing in industrial control and data acquisition systems.
For engineers reviewing the SN74LVC2G240DCT3 datasheet, SN74LVC2G240DCT3 pinout, SN74LVC2G240DCT3 application, or SN74LVC2G240DCT3 equivalent, this page delivers verified functional behavior, validated pin-level circuit roles, confirmed thermal and timing specs across −40 °C to +125 °C, and real-world translation use cases between 3.3 V and 5 V logic domains.
Technical Context
The SN74LVC2G240DCT3 implements two independent inverting buffers, each with active-low 3-state enable (1OE, 2OE), where a HIGH on nOE forces the corresponding output (nY) into high-impedance OFF-state. Its Schmitt-trigger inputs accept slow-rising/falling signals and tolerate input voltages up to 5.5 V regardless of VCC.
IOFF circuitry ensures power-down safety by disabling outputs and blocking backflow current when VCC = 0 V; static characteristics include VIH/VIL thresholds defined per VCC range (e.g., VIH ≥ 0.65×VCC at 1.65–1.95 V), and dynamic propagation delays as low as 0.5 ns at 4.5–5.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.65 V to 5.5 V - supports direct interface between 1.8 V, 2.5 V, 3.3 V, and 5 V logic families without level shifters. |
| Output Drive | ±24 mA at VCC = 3.0 V - sufficient to drive multiple LVC loads or moderate capacitive bus lines. |
| Input Tolerance | 5 V tolerant - allows connection to 5 V sources while powered from 3.3 V or lower, enabling voltage translation. |
| Propagation Delay | 0.5 ns (min) to 5.0 ns (max) at VCC = 4.5–5.5 V - enables high-speed signal buffering in timing-critical paths. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive, industrial motor control, and extended-temperature embedded applications. |
| ESD Protection | HBM > 2000 V, MM > 200 V - robust handling during board assembly and field operation in noisy environments. |
| IOFF Support | Active at VCC = 0 V - prevents damaging current flow during partial power-down or hot-swap scenarios. |
Pinout & Package
VSSOP-8 (SOT765-1) package: plastic very thin shrink small outline, 8 leads, body width 2.3 mm, lead pitch 0.5 mm, pin 1 index in lower-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OE | Active-low output enable for first buffer; HIGH forces 1Y into high-impedance state. |
| 2 | 1A | Inverting data input for first buffer; drives inverted output on pin 6 (1Y). |
| 3 | 2Y | Inverted output from second buffer (driven by 2A on pin 5); 3-state controlled by 2OE on pin 7. |
| 4 | GND | Ground reference (0 V) for all internal circuitry and I/O signaling. |
| 5 | 2A | Inverting data input for second buffer; drives inverted output on pin 3 (2Y). |
| 6 | 1Y | Inverted output from first buffer (driven by 1A on pin 2); 3-state controlled by 1OE on pin 1. |
| 7 | 2OE | Active-low output enable for second buffer; HIGH forces 2Y into high-impedance state. |
| 8 | VCC | Positive supply rail (1.65–5.5 V); powers both buffers and IOFF protection circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state inverters | Enables bidirectional bus control or isolated signal inversion with separate enable control per channel. |
| Schmitt-trigger inputs | Provides > 0.3 V hysteresis, allowing reliable operation with slow or noisy input edges (e.g., mechanical switch debouncing). |
| 5 V tolerant I/O | Permits direct connection to legacy 5 V microcontrollers or peripherals while operating from 3.3 V or lower supply. |
| IOFF partial power-down | Eliminates risk of backfeed current when VCC is off, critical for hot-plug and multi-rail system designs. |
| Wide temperature range | Specified from −40 °C to +125 °C - suitable for engine control units, industrial PLCs, and outdoor telecom equipment. |
Applications
| Industrial Bus Interface | Microcontroller GPIO Expansion |
|---|---|
Use Scenario: Isolating and buffering address/data lines between a 3.3 V ARM Cortex-M MCU and a 5 V industrial I/O module. IC Role / Device Role / Timing Role: Dual inverting buffer with independent 3-state control acts as voltage-translating bus driver and direction isolator. Use Value: Eliminates need for discrete level shifters; Schmitt inputs suppress noise from relay coils and motor drivers. |
Use Scenario: Expanding output capability of a resource-constrained MCU by driving multiple LED indicators or optocouplers. IC Role / Device Role / Timing Role: Inverting line driver provides gain and isolation; 3-state allows shared control lines via multiplexing. Use Value: ±24 mA drive strength directly sinks/sours LEDs without external transistors; low ICC (<10 µA) preserves battery life. |
| Test Equipment Signal Conditioning | Automotive Sensor Interface |
Use Scenario: Conditioning slow-rising analog comparator outputs before feeding into a high-speed FPGA capture port. IC Role / Device Role / Timing Role: Schmitt-trigger buffer cleans up marginal edges; 3-state enables test-mode isolation. Use Value: Input hysteresis rejects sub-100 mV noise; propagation delay <5 ns ensures timing alignment in 100 MHz sampling systems. |
Use Scenario: Interfacing a 5 V Hall-effect crankshaft position sensor to a 3.3 V automotive microcontroller ADC input. IC Role / Device Role / Timing Role: Level-translating inverter with 5 V-tolerant input protects MCU pins while preserving edge integrity. Use Value: Operates reliably at 125 °C ambient; IOFF prevents sensor bias leakage when ECU enters sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G04DCKR | No 3-state outputs; fixed push-pull outputs only. | Cannot support bus sharing or tri-state arbitration; limited to unidirectional signal inversion. | Select when simple inversion without output disable is required and space allows larger SOT-23-6 footprint. |
| 74LVC2G240DCUR | Same functionality and specs, but in XSON-8 (SOT765-1 equivalent) with 1.35 × 1.0 × 0.35 mm body. | Smaller PCB area and lower profile; requires requalification for thermal and mechanical stress in high-vibration environments. | Prefer for ultra-compact portable or wearable designs where VSSOP-8 height (>0.9 mm) is prohibitive. |
Compared with SN74LVC2G04DCKR, SN74LVC2G240DCT3 adds essential 3-state control for bus multiplexing; compared with 74LVC2G240DCUR, it offers identical electrical performance with greater mechanical robustness and established reflow compatibility in VSSOP-8 layouts.
Availability
SN74LVC2G240DCT3 is available at Aetrix Electronics and suitable for industrial automation, automotive subsystems, and test instrumentation requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.
Supply support for SN74LVC2G240DCT3 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, precision, and energy efficiency.
The SN74LVC2G240DCT3 belongs to TI's LVC logic family, designed specifically for low-voltage, high-speed, mixed-voltage interfacing in space-constrained industrial and automotive applications.
FAQ
What is the maximum input voltage allowed on SN74LVC2G240DCT3 pins when VCC = 3.3 V?
The SN74LVC2G240DCT3 supports 5 V-tolerant inputs: absolute maximum input voltage is +6.5 V, and operational input voltage range extends to 5.5 V regardless of VCC level. This allows safe interfacing with 5 V sources while powered from 3.3 V, making SN74LVC2G240DCT3 ideal for voltage translation without external components.
Does SN74LVC2G240DCT3 support partial power-down (IOFF) functionality?
Yes, SN74LVC2G240DCT3 includes integrated IOFF circuitry that disables outputs and blocks current flow when VCC = 0 V. This prevents damaging backflow current during hot-swap or multi-rail sequencing events, a key requirement for SN74LVC2G240DCT3 in modular industrial systems and battery-backed subsystems.
What is the typical propagation delay of SN74LVC2G240DCT3 at 3.3 V supply?
At VCC = 3.3 V and −40 °C to +85 °C, SN74LVC2G240DCT3 exhibits typical propagation delay (tpd) of 2.5 ns, with maximum specified delay of 4.6 ns. These values are measured from input (nA) to output (nY) under standard load conditions (30 pF, 500 Ω), confirming SN74LVC2G240DCT3 suitability for sub-200 MHz digital signal routing.
Can SN74LVC2G240DCT3 be used as a non-inverting buffer?
No - SN74LVC2G240DCT3 is strictly a dual inverting buffer. Each channel performs logical inversion (LOW→HIGH, HIGH→LOW) at the output. To achieve non-inverting behavior, SN74LVC2G240DCT3 must be paired with an external inverter or replaced with a non-inverting counterpart such as SN74LVC2G125DCT3, which provides identical 3-state control without inversion.
What package type is SN74LVC2G240DCT3 supplied in, and what are its key mechanical dimensions?
SN74LVC2G240DCT3 uses the VSSOP-8 (SOT765-1) package: 8-lead, body width 2.3 mm, lead pitch 0.5 mm, total length 2.3 mm, height ≤0.9 mm. Pin 1 is marked by a dot or notch in the lower-left corner. This compact, surface-mount package supports fine-pitch PCB layouts and automated assembly compatible with industry-standard reflow profiles.
SN74LVC2G240DCT3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SN74LVC2G240DCT3 FAQ
1.How can I place an order for SN74LVC2G240DCT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G240DCT3 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 SN74LVC2G240DCT3 reliable?
The price and inventory of SN74LVC2G240DCT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G240DCT3 is usually 5 days.
3.What payment methods are accepted for SN74LVC2G240DCT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G240DCT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC2G240DCT3?
SN74LVC2G240DCT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G240DCT3 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 SN74LVC2G240DCT3?
For technical support, including SN74LVC2G240DCT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G240DCT3 requirements.
6.How does Aetrix verify that SN74LVC2G240DCT3 is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G240DCT3 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 SN74LVC2G240DCT3 meets industry standards.
7.What is the process for return or replacement of SN74LVC2G240DCT3?
All SN74LVC2G240DCT3 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G240DCT3, 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 SN74LVC2G240DCT3 part is unused and in its original packaging.
Return procedure for SN74LVC2G240DCT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74LVC2G240DCT3 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…
