SN74AUP1G240DBVT - Low-Power 3-State Inverter Buffer | TI
MPN: SN74AUP1G240DBVT β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.32 | $0.32 |
| 10 | $0.26 | $2.60 |
| 100 | $0.15 | $15.00 |
| 500 | $0.11 | $55.00 |
| 1,000 | $0.08 | $80.00 |
SN74AUP1G240DBVT Overview
A buffer or line driver is a logic IC that strengthens, isolates, or inverts a digital signal without changing its logical state other than the intended inversion or buffering action. Within the voltage-regulation-and-signal-chain hierarchy, buffers belong to the standard logic family of CMOS digital ICs, sitting between microcontrollers or processors and loads that need extra drive current, signal isolation, or bus tri-stating. The AUP (Advanced Ultra-low Power) family is TI's premier solution for low static and dynamic power consumption across the full 0.8 V to 3.6 V VCC range, extending battery life in portable products.
Key features include an ultra-wide 0.8 V to 3.6 V operating supply range, 3.6 V I/O tolerance that supports mixed-mode signal operation, a maximum propagation delay of 4.3 ns at 3.3 V, and latch-up performance exceeding 100 mA per JESD 17. The 3-state output places the /Y pin in a high-impedance state when /OE is high, enabling shared-bus and point-to-point architectures.
Technically, the device uses CMOS circuitry optimized for very low dynamic power, maintaining excellent signal integrity even at reduced supply rails such as 1.2 V or 1.8 V, which are common in battery-powered portable applications.
Typical applications include level-compatible signal buffering in smartphones, tablets, and wearables, bus isolation in battery-powered portable electronics, and point-to-point line driving in low-power industrial and IoT nodes.
A key design consideration is that the /OE enable is active-low: pull /OE high to tri-state the output. Decouple VCC with a 0.1 uF ceramic capacitor close to pin 5.
This page synthesizes distributor data, drop-in alternatives, pinout, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for SN74AUP1G240DBVT β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
SN74AUP1G240DBVR
β Drop-Inπ Reference alternative (not in catalog)
74AUP1G240GW,125
β Drop-Inπ Reference alternative (not in catalog)
74AUP1G240GV,125
β Drop-Inπ Reference alternative (not in catalog)
SN74AUP1G240DBVT Maximum Ratings & Electrical Characteristics
| Function | Single inverting buffer/driver with 3-state output |
| Supply Voltage Range | 0.8 V to 3.6 V |
| I/O Tolerance | 3.6 V (mixed-mode signal operation) |
| Maximum Propagation Delay | 4.3 ns at 3.3 V |
| Output Type | 3-state (tri-state), inverting |
| Number of Channels | 1 |
| Technology Family | AUP (Advanced Ultra-low Power), CMOS |
| Latch-Up Performance | Exceeds 100 mA (JESD 17) |
| Enable Pin | /OE, active-low output enable |
| Package | SOT-23 (DBV), 5 pins |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (DBVT suffix) |
| Suitable For | Point-to-point applications |
SN74AUP1G240DBVT Pin Configuration
| Pin 1 | /OE β Active-low output enable; high = 3-state (high impedance) |
| Pin 2 | A β Data input |
| Pin 3 | GND β Ground (0 V reference) |
| Pin 4 | /Y β Inverted 3-state output |
| Pin 5 | VCC β Power supply, 0.8 V to 3.6 V |
Typical Applications
SN74AUP1G240DBVT is suitable for 6 applications: Battery-Powered Portable Electronics, Point-to-Point Signal Buffering, Bus Isolation with 3-State Output, Mixed-Voltage Domain Level Tolerant Interface, IoT Sensor Node Signal Conditioning, Industrial Low-Power Control Logic.
Battery-Powered Portable Electronics
The SN74AUP1G240DBVT is purpose-built for battery-powered portable products such as smartphones, tablets, and wearables. TI positions the AUP family as its premier low-power solution, with very low static and dynamic power consumption across the entire 0.8 V to 3.6 V VCC range, directly increasing battery life compared with LVC or HC logic. The buffer is placed between a microcontroller GPIO and peripheral loads or bus lines, providing clean inversion and drive without loading the source. Its 3.6 V tolerant input permits interfacing to higher-voltage domains while the device itself runs on a reduced rail, and the tiny SOT-23-5 package minimizes board area in space-constrained portable designs.
Recommended
Point-to-Point Signal Buffering
TI explicitly rates the AUP family as suitable for point-to-point applications, and the SN74AUP1G240DBVT fits this role with a maximum propagation delay of 4.3 ns at 3.3 V, preserving timing margin in short board-level links. The inverting output restores signal edges degraded by trace capacitance or fan-out, while the CMOS input presents minimal loading to the driver. In designs mixing 1.8 V, 2.5 V, and 3.3 V rails, the 3.6 V I/O tolerance enables level-tolerant buffering without external level shifters. Place a 0.1 uF decoupling capacitor at pin 5 and keep the trace stub short to maintain signal integrity in high-speed point-to-point connections.
Recommended
Bus Isolation with 3-State Output
The 3-state output of the SN74AUP1G240DBVT places /Y in a high-impedance state when /OE is pulled high, allowing multiple drivers to time-share a common bus line without contention. This is essential in battery-powered systems where a low-power microcontroller must hand off a shared signal line between functional blocks, or where a bus must be released for power-up sequencing. The active-low /OE control maps naturally to enable signals generated by power-management ICs or supervisor circuits. Latch-up performance exceeding 100 mA per JESD 17 adds robustness against bus transient events during hot-plug or brown-out conditions on shared lines.
Recommended
Mixed-Voltage Domain Level Tolerant Interface
The SN74AUP1G240DBVT operates from rails as low as 0.8 V and tolerates 3.6 V on its I/O, making it a compact solution for interfacing signals between low-voltage core logic (0.8 V to 1.2 V) and higher-voltage peripheral domains up to 3.6 V. In mixed-mode signal operation the buffer inverts and translates the swing without dedicated level-shifter ICs, saving BOM cost and board area in IoT nodes and sensor hubs. Designers should confirm VIH/VIL thresholds at the chosen VCC from the datasheet parametric tables, since CMOS thresholds scale with supply. The 4.3 ns propagation delay at 3.3 V adds negligible latency to slow control and status signaling paths.
Recommended
IoT Sensor Node Signal Conditioning
Low-power IoT sensor nodes benefit from the SN74AUP1G240DBVT's ultra-low static current and sub-nanowatt-class standby behavior typical of the AUP family, extending coin-cell and energy-harvested battery budgets. The buffer shapes sensor interrupt or clock outputs with distorted edges into clean CMOS levels for the microcontroller, and the 3-state output lets the node disconnect shared signal lines during deep-sleep to eliminate leakage paths. Running directly from a 1.8 V rail common to modern MCUs, the device inverts polarity as often required by active-low interrupt schemes. Its 5-pin SOT-23 footprint and tape-and-reel supply support high-volume automated assembly.
Recommended
Industrial Low-Power Control Logic
In industrial control panels and process instrumentation that run standby-critical circuitry, the SN74AUP1G240DBVT provides robust buffering of enable, reset, and shutdown signals with latch-up immunity exceeding 100 mA per JESD 17, guarding against the harsher transient environment of factory floors. The wide 0.8 V to 3.6 V supply range allows one buffer stock item to serve 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains across a platform, simplifying procurement and second-sourcing. The inverting 3-state output enables fail-safe release of control lines during power-down, and TI's broad AUP portfolio allows pin-count and function migration without redesign.
Recommended
Recommended Products Summary
Engineering reference data for SN74AUP1G240DBVT β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN74AUP1G240DBVR | 74AUP1G240GW,125 | 74AUP1G240GV,125 |
|---|---|---|---|---|
| Package | SOT-23 (DBV) 5-pin | SOT-23 (DBV) 5-pin - same | SOT-23 (SOT23-5) 5-pin - same footprint | SOT-25 5-pin - same footprint |
| Brand | Texas Instruments | Texas Instruments | Nexperia | Nexperia |
| Supply Voltage Range | 0.8 V to 3.6 V | 0.8 V to 3.6 V | 0.8 V to 3.6 V | 0.8 V to 3.6 V |
| Output Function | Inverting, 3-state | Inverting, 3-state | Inverting, 3-state | Inverting, 3-state |
| I/O Tolerance | 3.6 V | 3.6 V | 3.6 V | 3.6 V |
| Number of Channels | 1 | 1 | 1 | 1 |
| Packaging | Tape & Reel (DBVT) | Tape & Reel | Tape & Reel | Tape & Reel |
Key Differentiators
- Ultra-wide 0.8 V to 3.6 V supply range in AUP family (vs SN74LVC1G240)
- 3.6 V tolerant I/O with active-low 3-state enable (vs SN74AUP1G04)
- Same die available in SC-70 for footprint-constrained designs (vs SN74AUP1G240DCKR)
Design Notes
Decouple VCC (pin 5) with a 0.1 uF ceramic capacitor placed within 2 mm of the pin, referencing GND at pin 3. The AUP family is optimized for 3.3 V operation but tolerates the full 0.8 V to 3.6 V range; ensure the supply ramp is monotonic if /OE is tied low during power-up, since the 3-state output is only guaranteed once VCC passes the minimum recommended level. Estimated: with quiescent current in the sub-microamp class typical of AUP logic, buffer power draw is negligible relative to MCU sleep current in battery designs.
The SOT-23 (DBV) land pattern from the TI datasheet supports both hand soldering and reflow. Keep the input trace (pin 2) short and away from switching-node traces to avoid coupling noise into the CMOS input; an unterminated CMOS input should never be left floating - drive it or the output may oscillate. For the 3-state /Y output on a shared bus, add a pull-up or pull-down resistor on the bus side if the receiver requires a defined level during the high-impedance state.
The most common design error with the '240 function is assuming a non-inverting or active-high enable: this part inverts (A to /Y) and the output is enabled only when /OE is LOW. Confusing the DCKR (SC-70) footprint with the DBV (SOT-23-5) footprint during second-sourcing is another frequent mistake - the electrical function is identical but the land patterns differ and the parts are not drop-in interchangeable on the same PCB. Verify pin-1 orientation against the package dot before assembly.
Compliance Information
Current-generation TI AUP standard logic; DBVT suffix denotes standard lead-free tape-and-reel flow. Verify REACH and conflict-minerals declarations on the official TI product page, as the scraped dataset does not include certification documents.
