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Texas Instruments SN74AUP1G125DBVR
- Part No.:
- SN74AUP1G125DBVR
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
SN74AUP1G125DBVR.pdf
- Description:
- IC BUF NON-INVERT 3.6V SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:14,727
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Product details
Overview
SN74AUP1G125DBVR 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 to 3.6 V, delivers ≤4.6 ns propagation delay at 3.3 V, supports Ioff partial-power-down mode, and features 3.6-V tolerant I/O for mixed-voltage interfacing - used in SSDs, tablets, and wireless peripherals.
For engineers reviewing the SN74AUP1G125DBVR datasheet, SN74AUP1G125DBVR pinout, SN74AUP1G125DBVR application, or SN74AUP1G125DBVR equivalent, key selection criteria include its ultra-low ICC (0.9 µA max), 1.5 pF input capacitance, 3-state timing behavior (ten/tdis), and SOT-23-5 package compatibility with high-density PCB layouts.
Technical Context
The SN74AUP1G125DBVR implements a noninverting buffer with active-low OE control, enabling/disabling the Y output while maintaining high-impedance state. Its balanced CMOS push-pull output drives ±4 mA at 3 V and supports 5.5-V-tolerant inputs - critical for level-shifting between legacy and low-voltage logic domains.
It integrates Ioff circuitry that disables all I/O paths when VCC = 0 V, preventing back-current during partial power-down. Input hysteresis improves noise immunity for slow-rising signals, and the device meets JEDEC JESD22-C101 (1000-V CDM) and JS-001 (2000-V HBM) ESD standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC 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 |
| tpd Max | 4.6 ns at 3.3 V, CL = 5 pF - supports signal integrity in sub-100-MHz digital buses |
| ICC Max | 0.9 µA at TA = –40°C to +85°C - extends battery life in always-on portable subsystems |
| CI Typ | 1.5 pF - minimizes capacitive loading on driving source, preserving rise/fall times |
| Ioff Max | 0.6 µA at VCC = 0 V - blocks leakage current during system sleep or hot-swap events |
| IOH/IOL | –4 mA / +4 mA at VCC = 3 V - sufficient to drive multiple CMOS loads or small LEDs directly |
| ESD Rating | 2000-V HBM, 1000-V CDM - meets industrial handling and board-level reliability requirements |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm height, gull-wing leads, RoHS-compliant, thermal pad optional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OE | Active-low output enable input | Drives Y to high-impedance when high; requires pull-up to VCC for power-up safety |
| 2 - A | Buffer input | Noninverting data input; accepts 0–3.6 V signals, including 5.5-V-tolerant levels |
| 3 - GND | Ground reference | Primary return path for logic and output currents; must be low-inductance connection |
| 4 - Y | 3-state buffered output | Drives high/low when OE = L; enters Hi-Z when OE = H; supports wired-OR configurations |
| 5 - VCC | Positive supply | Power rail for internal logic and output drivers; bypassing with 100-nF ceramic capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic power (Cpd = 4 pF) | Reduces switching noise and supply ripple in high-frequency clock/data paths |
| Input-disable capability | Allows A to float without causing undefined output or increased ICC during standby |
| Over-voltage tolerant inputs | Accepts up to 5.5 V on A/OE pins while VCC = 1.8 V - simplifies mixed-supply interconnect |
| Low noise (overshoot/undershoot < 10% VCC) | Minimizes EMI and crosstalk in dense routing environments like mobile PCBs |
| Wide temperature range (–40°C to +85°C) | Validated for operation in consumer, industrial, and automotive cabin applications |
Applications
| SSD Data Bus Isolation | Wireless Peripheral Interface |
|---|---|
Use Scenario: Isolating NAND flash command/address lines from host controller during suspend/resume cycles in client SSDs. IC Role / Device Role / Timing Role: 3-state buffer enabling/disabling data path under firmware control via OE signal. Use Value: Prevents bus contention during power transitions; leverages Ioff to block leakage when VCC is off. | Use Scenario: Level-shifting and buffering I²C or GPIO signals between 3.3-V MCU and 5-V USB audio headset IC. IC Role / Device Role / Timing Role: Noninverting buffer with 3.6-V I/O tolerance translating down from 5-V sources. Use Value: Eliminates external level shifter; 1.5-pF CI preserves signal edge rate for reliable 400-kHz I²C timing. |
| Tablet Display Interface | Enterprise PDA Power Management |
Use Scenario: Driving backlight enable or touch controller reset lines in thin-form-factor tablets with tight layout constraints. IC Role / Device Role / Timing Role: Low-power buffer providing clean, fast-enable control pulses with minimal supply current draw. Use Value: 0.9-µA ICC extends battery runtime; SOT-23-5 footprint saves >30% board area vs. SOIC-8 alternatives. | Use Scenario: Managing power sequencing for auxiliary sensors (e.g., ambient light, accelerometer) in enterprise PDAs. IC Role / Device Role / Timing Role: Output-enabled gate controlling sensor VDD_EN line under processor supervision. Use Value: Ioff prevents backfeed from powered sensors into unpowered MCU domain during deep sleep. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DBVR | Higher ICC (10 µA typ), narrower VCC range (1.65–5.5 V), no Ioff support | Not suitable for partial-power-down systems; requires separate isolation for hot-swap | Choose only if higher drive strength (±32 mA) and 5-V compatibility outweigh low-power needs |
| 74AHC1G125SE-7 | Wider VCC (2–5.5 V), no Ioff, higher Cpd (10 pF), no 5.5-V input tolerance | Lacks mixed-voltage flexibility and leakage control; limited to 2.5/3.3/5-V-only designs | Select when operating exclusively above 2 V and cost is primary constraint over power/performance |
Compared with SN74LVC1G125DBVR and 74AHC1G125SE-7, the SN74AUP1G125DBVR uniquely combines sub-1-µA static current, 0.8-V minimum operation, Ioff, and 5.5-V input tolerance - making it the only option for battery-powered, multi-rail, hot-pluggable systems requiring zero-leakage isolation.
Availability
SN74AUP1G125DBVR is available at Aetrix Electronics and suitable for SSDs, wireless headsets, tablet displays, and enterprise PDAs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SN74AUP1G125DBVR 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 SN74AUP1G125DBVR belongs to TI's AUP (Advanced Ultra-Low-Power) logic family, engineered specifically for battery-operated portable devices where extended runtime, wide voltage scalability, and robust mixed-signal interoperability are essential.
FAQ
What is the maximum recommended load capacitance for stable operation of the SN74AUP1G125DBVR?
The SN74AUP1G125DBVR is characterized up to 30 pF load capacitance in its switching specifications (CL = 5/10/15/30 pF). At 3.3 V, tpd remains ≤7 ns even at CL = 30 pF. For optimal signal integrity beyond 30 pF, add series termination or reduce edge rate - the device's 4 pF Cpd ensures minimal added dynamic loading.
Does the SN74AUP1G125DBVR support true bidirectional data flow?
No, the SN74AUP1G125DBVR is a unidirectional noninverting buffer (Y = A) with 3-state output control. It does not support automatic direction sensing or bus transceiver functionality. For bidirectional applications, consider dedicated transceivers like SN74AVC4T245 or SN74LVC8T245.
Can the OE pin of the SN74AUP1G125DBVR be driven directly by a 1.2-V microcontroller GPIO?
Yes - the OE pin is 5.5-V tolerant and has VIH(min) = 0.65×VCC at 1.1–1.95 V VCC. With VCC = 1.8 V, VIH(min) = 1.17 V, so a 1.2-V GPIO may not reliably assert OE = L. However, with VCC = 1.2 V, VIH(min) = 0.78 V, making 1.2-V logic fully compatible. Always verify against actual VCC and temperature conditions.
Is a pull-up resistor required on the OE pin of the SN74AUP1G125DBVR during power-up?
Yes - TI explicitly recommends tying OE to VCC via a pull-up resistor to ensure Y remains in high-impedance state during power ramp. The minimum resistor value depends on the driver's sink capability; for typical MCU GPIOs (±20 mA), 10 kΩ is safe. This prevents unintended output activation before firmware initialization.
How does the Ioff feature of the SN74AUP1G125DBVR behave when VCC is disconnected?
When VCC = 0 V, the Ioff circuitry actively disables all I/O terminals (A, OE, Y), limiting leakage to ≤0.6 µA per pin. This prevents current backflow from live signal lines into the unpowered device - a critical requirement for hot-swap, partial-power-down, and battery-isolation architectures using the SN74AUP1G125DBVR.
SN74AUP1G125DBVR 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
SN74AUP1G125DBVR FAQ
1.How can I place an order for SN74AUP1G125DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP1G125DBVR 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 SN74AUP1G125DBVR reliable?
The price and inventory of SN74AUP1G125DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP1G125DBVR is usually 5 days.
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Once your SN74AUP1G125DBVR 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 SN74AUP1G125DBVR?
For technical support, including SN74AUP1G125DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP1G125DBVR requirements.
6.How does Aetrix verify that SN74AUP1G125DBVR is sourced from the original manufacturer or authorized distributors?
All SN74AUP1G125DBVR 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 SN74AUP1G125DBVR meets industry standards.
7.What is the process for return or replacement of SN74AUP1G125DBVR?
All SN74AUP1G125DBVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP1G125DBVR, 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 SN74AUP1G125DBVR part is unused and in its original packaging.
Return procedure for SN74AUP1G125DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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