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Texas Instruments 74AUC1G240DBVRG4
- Part No.:
- 74AUC1G240DBVRG4
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74AUC1G240DBVRG4.pdf
- Description:
- IC BUFFER INVERT 2.7V SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,990
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Product details
Overview
74AUC1G240DBVRG4 from Texas Instruments is a single noninverting buffer/driver with 3-state output, designed for 1.65–1.95 V operation and 3.6-V I/O tolerance. It delivers ±8-mA drive at 1.8 V, achieves 2.5 ns max propagation delay, and supports partial-power-down via Ioff. It is used in low-voltage bus interface and level-shifting applications in portable and space-constrained systems.
For engineers reviewing the 74AUC1G240DBVRG4 datasheet, 74AUC1G240DBVRG4 pinout, 74AUC1G240DBVRG4 application, or 74AUC1G240DBVRG4 equivalent, key selection criteria include its sub-1-V operability, 10-µA max ICC, 3-state control timing (ten/tdis), NanoFree™ package compatibility, and Ioff-enabled mixed-mode signal handling.
Technical Context
The 74AUC1G240DBVRG4 implements a single-channel noninverting buffer with active-low 3-state enable logic: output Y follows input A when OE is low, and enters high-impedance state when OE is high. Its design targets low-voltage core logic interfacing while maintaining robustness across mixed-supply domains.
It features Ioff circuitry that disables outputs during power-down to prevent backflow current, and supports operation from 0.8 V to 2.7 V VCC - though optimized for 1.65–1.95 V. Input thresholds scale with VCC (VIH = 0.65×VCC, VIL = 0.35×VCC), ensuring reliable switching across its full supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 2.7 V - enables use in ultra-low-voltage systems and mixed-supply interfaces |
| Max tpd | 2.5 ns at 1.8 V, CL = 30 pF - supports high-speed data buffering in compact digital subsystems |
| Output Drive | ±8 mA at 1.8 V - sufficient to drive multiple 1.8-V CMOS loads without external termination |
| Ioff Current | ±10 µA at 2.7 V - ensures safe isolation during partial power-down in battery-backed or hot-swap systems |
| ICC (max) | 10 µA - minimizes quiescent power in always-on or standby logic paths |
| IOZ (Off-State Leakage) | ±10 µA - maintains high-impedance integrity under voltage bias when disabled |
| ESD Rating | 2000-V HBM - provides robust handling in manual assembly and field-replaceable modules |
Pinout & Package
SOT-23 (DBV) 5-pin plastic package, 1.45 mm max height, 2.9 mm × 1.6 mm body, gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A (Input) | Noninverting data input; accepts 0.8–3.6 V signals, VIH/VIL scale with VCC |
| 2 | OE (Enable) | Active-low 3-state control; tie to VCC via pullup for power-up high-Z safety |
| 3 | GND | Ground reference for logic and power; must be low-impedance for noise immunity |
| 4 | Y (Output) | Buffered noninverting output; 3-state capable, drives ±8 mA at 1.8 V |
| 5 | VCC | Supply rail; operates from 0.8 V to 2.7 V; 3.6-V tolerant I/O allows mixed-voltage interfacing |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ packaging | Dies-as-package construction reduces footprint to 1.45 mm × 1.0 mm - ideal for wearables and ultra-thin PCBs |
| Ioff partial-power-down support | Prevents back-current flow when VCC = 0 V but I/O pins are biased - critical for hot-plug and battery-isolation designs |
| 3.6-V I/O tolerance | Allows direct connection to 3.3-V or 2.5-V buses while powered from 1.8-V rail - eliminates level-shifters in many mixed-mode interfaces |
| Sub-1-V operability | Functional down to 0.8 V VCC - supports emerging ultra-low-power microcontroller peripherals and energy-harvesting subsystems |
| Low dynamic power | 14 pF typical power dissipation capacitance - minimizes switching current in high-frequency clock/data paths |
Applications
| Mobile Baseband Interface | Wearable Sensor Hub |
|---|---|
Use Scenario: Interfacing an ultra-low-power MCU GPIO to a 1.8-V display driver IC with shared bus lines. IC Role / Device Role / Timing Role: Single-directional 3-state buffer isolating MCU output during sleep mode while enabling fast wake-up data bursts. Use Value: Eliminates need for discrete MOSFET switches; Ioff prevents leakage into powered-down MCU domain. | Use Scenario: Level-shifting accelerometer interrupt signal from 1.2-V sensor to 1.8-V host processor GPIO. IC Role / Device Role / Timing Role: Noninverting buffer with 3-state capability, configured as always-enabled translator between mismatched supply domains. Use Value: 3.6-V I/O tolerance permits direct connection without external resistors or translators; 2.5 ns tpd preserves interrupt latency. |
| Industrial IoT Edge Node | Medical Patch Monitor |
Use Scenario: Isolating SPI data line between 1.8-V MCU and 3.3-V EEPROM during firmware update sequences. IC Role / Device Role / Timing Role: Bidirectional-capable buffer (with OE-controlled direction) managing shared SDO/SDI lines in half-duplex mode. Use Value: Enables safe bus sharing without contention; ±8-mA drive ensures clean edges over 10-cm PCB traces. | Use Scenario: Driving ECG analog front-end enable signal from a 0.9-V subthreshold logic block. IC Role / Device Role / Timing Role: Low-VCC buffer amplifying weak logic swing to full-rail 1.8-V levels for analog switch control. Use Value: Sub-1-V operation allows direct integration with subthreshold digital blocks; 10-µA ICC extends battery life in multi-year deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buffer/driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G240DBVR | Higher VCC min (1.65 V), lower drive (±24 mA at 3.3 V), no sub-1-V operation | Better suited for 3.3-V systems; lacks 0.8–1.1 V operability and NanoFree™ footprint | Select when operating above 1.65 V and requiring higher drive or legacy LVC compatibility |
| 74AUP1G240GW,125 | NXP variant: 0.8–3.6 V range, 3.7 ns tpd at 1.2 V, 1.2-mm × 1.0-mm XSON package | Similar low-V performance but different pinout (pin 1 = GND); not pin-compatible with DBV | Consider for space-constrained layouts where XSON thermal profile is preferred over SOT-23 |
Compared with SN74LVC1G240DBVR and 74AUP1G240GW,125, the 74AUC1G240DBVRG4 uniquely combines sub-1-V operation, NanoFree™ footprint, and 2.5 ns speed at 1.8 V - making it optimal for next-generation portable and energy-sensitive designs where voltage scaling and board area are primary constraints.
Availability
74AUC1G240DBVRG4 is available at Aetrix Electronics and suitable for mobile baseband interface, wearable sensor hub, and industrial IoT edge node applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for 74AUC1G240DBVRG4 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 for industrial, automotive, and personal electronics markets.
The SN74AUC family targets ultra-low-voltage, high-speed logic applications - specifically engineered for sub-1.2-V operation, minimal power consumption, and seamless integration into advanced portable and battery-powered systems.
FAQ
What is the minimum supply voltage at which 74AUC1G240DBVRG4 guarantees functional operation?
The 74AUC1G240DBVRG4 is fully specified from 0.8 V to 2.7 V VCC, with guaranteed operation - including input threshold tracking and output drive - down to 0.8 V. While optimized for 1.65–1.95 V, its sub-1-V capability is validated per the SCES384I datasheet's recommended operating conditions and electrical characteristics tables.
Does 74AUC1G240DBVRG4 support true bidirectional data flow?
No - the 74AUC1G240DBVRG4 is a unidirectional noninverting buffer with 3-state output. It does not implement automatic direction control or bus transceiver logic. For bidirectional applications, two devices or a dedicated transceiver like SN74AUC245 must be used with external OE coordination.
Can 74AUC1G240DBVRG4 be used to translate between 1.2-V and 3.3-V logic levels?
Yes - the 74AUC1G240DBVRG4 supports 3.6-V I/O tolerance, meaning its inputs and outputs withstand up to 3.6 V regardless of VCC. When powered from 1.2 V, it safely accepts 3.3-V inputs and drives 3.3-V-tolerant loads, provided output current remains within ±8 mA limits at that VCC.
What is the purpose of the Ioff feature in 74AUC1G240DBVRG4, and how does it affect system design?
The Ioff feature disables all outputs when VCC = 0 V, limiting off-state leakage to ±10 µA. This prevents damaging back-current flow from live I/O lines into a powered-down supply rail - essential for hot-swap, battery-isolation, and partial-power-down architectures. Designers can safely leave OE floating or tied high without risk of latch-up or excessive current draw.
Is the 74AUC1G240DBVRG4 pin-compatible with other SOT-23 packaged logic buffers from Texas Instruments?
Yes - the 74AUC1G240DBVRG4 uses standard SOT-23 (DBV) 5-pin pinout (A-OE-GND-Y-VCC), matching SN74LVC1G240DBVR, SN74AHC1G240DBVR, and most TI single-gate SOT-23 logic devices. This enables drop-in replacement in existing layouts where voltage and timing requirements align.
74AUC1G240DBVRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUC
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 9mA, 9mA
- Voltage - Supply:
- 0.8V ~ 2.7V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
74AUC1G240DBVRG4 FAQ
1.How can I place an order for 74AUC1G240DBVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AUC1G240DBVRG4 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 74AUC1G240DBVRG4 reliable?
The price and inventory of 74AUC1G240DBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AUC1G240DBVRG4 is usually 5 days.
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Once your 74AUC1G240DBVRG4 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 74AUC1G240DBVRG4?
For technical support, including 74AUC1G240DBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AUC1G240DBVRG4 requirements.
6.How does Aetrix verify that 74AUC1G240DBVRG4 is sourced from the original manufacturer or authorized distributors?
All 74AUC1G240DBVRG4 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 74AUC1G240DBVRG4 meets industry standards.
7.What is the process for return or replacement of 74AUC1G240DBVRG4?
All 74AUC1G240DBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74AUC1G240DBVRG4, 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 74AUC1G240DBVRG4 part is unused and in its original packaging.
Return procedure for 74AUC1G240DBVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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