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Texas Instruments SN74AUP1G125DBVT
- Part No.:
- SN74AUP1G125DBVT
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
SN74AUP1G125DBVT.pdf
- Description:
- IC BUF NON-INVERT 3.6V SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,506
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Product details
Overview
SN74AUP1G125DBVT from Texas Instruments is a single 3-state bus buffer gate with active-low output enable (OE), designed for low-power signal routing in portable and space-constrained systems. It operates across 0.8 V–3.6 V, delivers 4 mA drive at 3 V, achieves 4.6 ns max propagation delay at 3.3 V, and supports Ioff partial-power-down mode - enabling use in battery-powered SSDs, tablets, and wireless peripherals.
For engineers reviewing the SN74AUP1G125DBVT datasheet, SN74AUP1G125DBVT pinout, SN74AUP1G125DBVT application, or SN74AUP1G125DBVT equivalent, key selection criteria include its 5-pin SOT-23 (DBV) package, 1.5 pF input capacitance, 3.6-V I/O tolerance, and guaranteed 3-state behavior during power sequencing via OE pull-up.
Technical Context
The SN74AUP1G125DBVT implements a noninverting buffer with tristate control: when OE is low, Y follows A; when OE is high, Y enters high-impedance state. Its balanced CMOS push-pull output drives ±4 mA at 3 V while maintaining rail-to-rail VOH/VOL performance across the full 0.8 V–3.6 V supply range.
It integrates Ioff circuitry to isolate inputs/outputs at 0 V supply, features standard CMOS inputs with 1.5 pF typical capacitance and hysteresis-enhanced noise immunity, and includes clamp diodes on all I/O pins for ESD robustness (2000 V HBM, 1000 V CDM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 0.8 V to 3.6 V - enables direct interface with 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| Max Propagation Delay | 4.6 ns at 3.3 V, CL = 5 pF - supports reliable operation in high-speed data paths up to ~100 MHz. |
| Output Drive Strength | ±4 mA at VCC = 3 V - sufficient to drive multiple CMOS loads or small LEDs without external buffering. |
| Input Capacitance | 1.5 pF typical - minimizes loading on upstream drivers and preserves signal integrity in dense layouts. |
| Ioff Leakage Current | 0.6 µA max at –40°C to +85°C - ensures safe isolation during partial power-down in mixed-supply systems. |
| ESD Rating | 2000 V HBM, 1000 V CDM - meets industrial handling requirements without additional protection circuitry. |
| 3-State Enable Threshold | OE high = VIH ≥ 2.0 V at VCC = 3.3 V - provides clear margin for TTL- or CMOS-compatible control signals. |
Pinout & Package
SOT-23 (DBV) package: 5-pin, 2.90 mm × 1.60 mm body, surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OE | Active-low output enable input | Drives Y into high-Z when high; must be pulled up to VCC during power-up/down to guarantee defined state. |
| 2 - A | Buffer input | Noninverting data input; accepts 0.8 V–3.6 V logic levels and tolerates up to 4.6 V transient inputs. |
| 3 - GND | Ground reference | Return path for all internal currents; requires low-inductance connection to system ground plane. |
| 4 - Y | 3-state buffered output | Drives high/low when OE = low; presents >10⁹ Ω impedance when OE = high - prevents bus contention. |
| 5 - VCC | Positive supply | Power source for logic core and output stage; bypassing with 100 nF ceramic capacitor near pin is mandatory. |
Key Features
| Feature | Design Value |
|---|---|
| Low static power consumption | ICC ≤ 0.9 µA max - extends battery life in always-on sensor nodes and portable audio docks. |
| 3.6-V I/O tolerant inputs | Accepts 5.5-V-tolerant signals while powered from 1.8 V - simplifies voltage translation in mixed-voltage SoC interfaces. |
| Input-disable capability | Allows A to float without causing undefined output or excessive ICC - eliminates need for external pull resistors on unused inputs. |
| Low noise switching | Overshoot/undershoot < 10% of VCC - reduces EMI and avoids false triggering in adjacent analog or RF sections. |
| Wide temperature range | Specified from –40°C to +85°C - suitable for industrial SSDs, enterprise tablets, and telecom power controllers. |
Applications
| Audio Dock Interface | SSD Command Routing |
|---|---|
Use Scenario: Signal isolation between USB host controller and audio codec in portable docking stations. IC Role / Device Role / Timing Role: 3-state buffer isolating bidirectional I²S or PCM data lines during sleep mode. Use Value: Prevents backdrive current from powered codec into unpowered host; enables zero-power standby with Ioff support. |
Use Scenario: Enabling/disabling NAND flash address/data bus segments in client SSDs. IC Role / Device Role / Timing Role: Output-enabled buffer controlling chip-select or command latch timing in multi-die NAND packages. Use Value: Reduces dynamic power by gating unused bus segments; 4.6 ns tpd ensures timing compliance at 100 MHz toggle rates. |
| Wireless Peripheral Hub | Industrial Tablet GPIO Expansion |
Use Scenario: Level-shifting and buffering between Bluetooth SoC (1.8 V) and mechanical keyboard matrix (3.3 V). IC Role / Device Role / Timing Role: Single-supply bidirectional buffer with 3.6-V-tolerant inputs enabling voltage translation without external components. Use Value: Eliminates discrete level shifters; 1.5 pF CI minimizes propagation skew across 12-key scan rows. |
Use Scenario: Isolating field-programmable I/O banks from main processor in ruggedized enterprise tablets. IC Role / Device Role / Timing Role: Tristate gate managing shared interrupt or reset lines between PMIC and application processor. Use Value: Guarantees high-Z during processor reset sequences; Ioff prevents leakage-induced brownout during partial power-down. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DBVT | Wider VCC range (1.65 V–5.5 V); higher ICC (10 µA typ); no Ioff; 5.5-V tolerant I/O only at VCC ≥ 3.0 V. | Better suited for 5-V legacy systems but lacks partial-power-down safety for battery-critical designs. | Choose SN74LVC1G125DBVT only if interfacing with 5-V peripherals and Ioff is not required. |
| 74AHC1G125SE-7 | Same 0.8 V–3.6 V range; higher drive (±8 mA); 6-pin SOT-363 package; no Ioff; 1000 V HBM ESD rating. | Higher drive supports heavier capacitive loads but larger footprint and missing Ioff limit use in ultra-low-power portable devices. | Prefer 74AHC1G125SE-7 when driving >10 pF loads or requiring dual-channel integration in same package. |
Compared with SN74LVC1G125DBVT and 74AHC1G125SE-7, the SN74AUP1G125DBVT uniquely combines sub-µA static current, guaranteed Ioff, and 3.6-V I/O tolerance in a 5-pin SOT-23 - making it optimal for energy-sensitive, space-constrained, and mixed-voltage portable electronics.
Availability
SN74AUP1G125DBVT is available at Aetrix Electronics and suitable for solid-state drive (SSD), wireless peripheral, and industrial tablet applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SN74AUP1G125DBVT 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 company specializing in analog, embedded processing, and connectivity technologies, with over 90 years of innovation in power management and signal chain solutions.
The SN74AUP1G125DBVT belongs to TI's AUP (Advanced Ultra-Low-Power) logic family, engineered specifically for extended battery life in portable consumer electronics while maintaining signal integrity and robustness across wide voltage and temperature ranges.
FAQ
What is the recommended pull-up resistor value for OE on SN74AUP1G125DBVT?
The OE pin must be tied to VCC through a pull-up resistor to ensure high-impedance state during power-up/down. The minimum resistor value depends on the current-sinking capability of the driver controlling OE; for most microcontroller GPIOs, 10 kΩ is sufficient. TI specifies that the resistor must allow OE to reach VIH (≥2.0 V at VCC = 3.3 V) under worst-case leakage conditions. SN74AUP1G125DBVT datasheet Section 3 and Figure 5 provide layout guidance for reliable OE biasing.
Does SN74AUP1G125DBVT support true 5-V input tolerance?
No - SN74AUP1G125DBVT inputs are rated for absolute maximum 4.6 V, and functional 3.6-V I/O tolerance is guaranteed only when VCC is within 0.8 V–3.6 V. While inputs can withstand brief 5-V transients per Absolute Maximum Ratings, sustained 5-V signaling violates recommended operating conditions and may cause increased leakage or reliability risk. For 5-V systems, SN74LVC1G125DBVT is the appropriate alternative. SN74AUP1G125DBVT is optimized for sub-3.6 V domains.
Can SN74AUP1G125DBVT drive an LED directly?
Yes - SN74AUP1G125DBVT can sink or source up to ±4 mA at VCC = 3 V, which is sufficient for indicator LEDs with series resistors ≥1 kΩ. However, it is not rated for continuous DC LED current; TI recommends using it for brief pulse-driven indicators (e.g., status blinks) rather than constant-on illumination. Thermal limits and output voltage drop (VOL ≈ 0.31 V at 4 mA) must be verified per application. SN74AUP1G125DBVT is not a dedicated LED driver IC.
Is SN74AUP1G125DBVT pin-compatible with other 5-pin logic buffers?
SN74AUP1G125DBVT uses the industry-standard 5-pin SOT-23 (DBV) footprint with pin 1 = OE, pin 2 = A, pin 3 = GND, pin 4 = Y, pin 5 = VCC. This matches SN74LVC1G125DBVT and SN74AHC1G125DBVR pinouts exactly. However, electrical differences - especially Ioff presence, supply range, and drive strength - mean functional substitution requires validation. SN74AUP1G125DBVT is not a drop-in replacement without reviewing system-level voltage, timing, and power constraints.
How does Ioff functionality work in SN74AUP1G125DBVT during power-down?
When VCC = 0 V, the Ioff circuitry in SN74AUP1G125DBVT disables both input and output paths, limiting leakage current to ≤0.6 µA (max) across all pins - preventing back-current flow from live buses into the unpowered device. This protects upstream drivers and avoids unintended logic states in partially powered systems. Ioff is automatic and requires no external control; it is fully characterized from –40°C to +85°C. SN74AUP1G125DBVT leverages this for safe operation in SSDs and tablets with staggered power domains.
SN74AUP1G125DBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUP
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 4mA, 4mA
- Voltage - Supply:
- 0.8V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
SN74AUP1G125DBVT FAQ
1.How can I place an order for SN74AUP1G125DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP1G125DBVT 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 SN74AUP1G125DBVT reliable?
The price and inventory of SN74AUP1G125DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP1G125DBVT is usually 5 days.
3.What payment methods are accepted for SN74AUP1G125DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUP1G125DBVT transactions.
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4.How is shipping managed for SN74AUP1G125DBVT?
SN74AUP1G125DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUP1G125DBVT 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 SN74AUP1G125DBVT?
For technical support, including SN74AUP1G125DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP1G125DBVT requirements.
6.How does Aetrix verify that SN74AUP1G125DBVT is sourced from the original manufacturer or authorized distributors?
All SN74AUP1G125DBVT 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 SN74AUP1G125DBVT meets industry standards.
7.What is the process for return or replacement of SN74AUP1G125DBVT?
All SN74AUP1G125DBVT units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP1G125DBVT, 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 SN74AUP1G125DBVT part is unused and in its original packaging.
Return procedure for SN74AUP1G125DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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