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Texas Instruments SN74AUP1G125DRLR
- Part No.:
- SN74AUP1G125DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-553
- Datasheet:
-
SN74AUP1G125DRLR.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V SOT5
- Quantity:
- Payment:
- Shipping:
Inventory:6,821
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Product details
Overview
SN74AUP1G125 from Texas Instruments is a single-channel 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 I/O tolerance for mixed-voltage interfacing - used in SSDs, tablets, and wireless peripherals.
For engineers reviewing the SN74AUP1G125 datasheet, SN74AUP1G125 pinout, SN74AUP1G125 application, or SN74AUP1G125 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 compatibility with 0.8-V logic thresholds in battery-powered designs.
Technical Context
The SN74AUP1G125 implements a non-inverting buffer (Y = A) with CMOS push-pull output stage and active-low OE control. Its Ioff circuitry ensures high-impedance inputs/outputs at VCC = 0 V, enabling safe back-driving during partial power-down. Input hysteresis improves noise immunity for slow transitions.
It uses standard CMOS inputs with clamp diodes for ESD protection (2000-V HBM), supports 5.5-V-tolerant inputs, and maintains balanced drive capability (±4 mA at 3 V). The device requires OE tied to VCC via pullup resistor to guarantee Hi-Z state during power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 3.6 V - enables direct interface with 0.9-V, 1.2-V, 1.8-V, 2.5-V, and 3.3-V logic domains |
| tpd Max | 4.6 ns at 3.3 V, CL = 5 pF - supports signal integrity in sub-100-MHz digital paths |
| 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, critical for high-speed trace routing |
| Ioff Max | 0.6 µA at VCC = 0 V - prevents current backflow during hot-swap or partial power-down sequences |
| IOH/IOL | –4 mA / +4 mA at VCC = 3 V - sufficient to drive LEDs or fan-out to multiple CMOS loads without external buffers |
| ESD Rating | 2000-V HBM - meets industrial handling requirements without additional protection circuitry |
Pinout & Package
SOT (5) package - 1.60 mm × 1.20 mm body size, 0.65-mm pitch, surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OE | Active-low output enable input | Drives Y to Hi-Z when high; must be pulled up to VCC for power-up safety |
| 2 - A | Non-inverting data input | Accepts 0.8-V to 3.6-V logic levels; 5.5-V tolerant; supports floating via input-disable feature |
| 3 - GND | Ground reference | Return path for all internal currents; requires low-inductance connection to minimize switching noise |
| 4 - Y | 3-state buffered output | Delivers rail-to-rail CMOS output; sinks/sources up to ±4 mA; Hi-Z when OE = high |
| 5 - VCC | Positive supply | Power input for core logic and output drivers; bypassing with 0.1-µF ceramic capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| Input-disable capability | Allows A to float without causing undefined output states or increased ICC - simplifies unconnected input handling |
| Ioff partial-power-down support | Prevents damaging back-current flow when VCC = 0 V - essential for hot-pluggable modules and multi-rail systems |
| 3.6-V I/O tolerance | Enables level-shifting from 5-V or 3.3-V sources into lower-VCC domains (e.g., 1.8-V microcontrollers) without external translators |
| Low input capacitance (1.5 pF) | Reduces signal degradation on high-frequency traces and lowers driver loading - improves timing margin in dense layouts |
| Input hysteresis | Rejects slow-edge or noisy signals without external Schmitt triggers - enhances reliability in noisy industrial environments |
Applications
| SSD Data Path Isolation | Wireless Peripheral Interface |
|---|---|
Use Scenario: Isolating NAND flash command/address lines from host controller during sleep mode in client SSDs. IC Role / Device Role / Timing Role: 3-state buffer enabling/disabling data path under firmware control to reduce standby leakage. Use Value: Achieves <1 µA system-level quiescent current by eliminating signal contention and enabling full power-gating of downstream logic. | Use Scenario: Level-shifting and buffering I²C or GPIO signals between 3.3-V MCU and 1.8-V Bluetooth SoC in wireless mice/keyboards. IC Role / Device Role / Timing Role: Non-inverting buffer with 3.6-V-tolerant inputs translating 3.3-V signals down to 1.8-V domain while maintaining timing integrity. Use Value: Eliminates need for discrete level shifters; 4.6-ns tpd preserves I²C timing budgets at 400 kHz and supports fast GPIO toggling. |
| Tablet Power Sequencing | Audio Dock Signal Routing |
Use Scenario: Controlling enable/disable of audio codec clock distribution in enterprise tablets with dynamic voltage scaling. IC Role / Device Role / Timing Role: OE-controlled buffer gating clock signals to subsystems during DVFS transitions to prevent metastability. Use Value: Ioff and input-disable features ensure no current injection during VCC ramp-up/down - avoids latch-up and guarantees clean power sequencing. | Use Scenario: Driving LED indicators and isolating USB enumeration signals in portable audio docks with mixed-voltage ICs. IC Role / Device Role / Timing Role: Low-capacitance buffer driving LEDs directly (±4 mA) while providing Hi-Z isolation for USB D+/D– line sharing. Use Value: 1.5-pF CI minimizes USB signal distortion; 3.6-V I/O tolerance allows shared control lines between 5-V USB PHY and 3.3-V MCU. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DBVR | Wider VCC range (1.65–5.5 V); higher ICC (10 µA typ); no Ioff; 5-V tolerant but not 5.5-V tolerant | Requires ≥1.65 V supply; unsuitable for 0.8–1.2-V domains or partial-power-down systems | Select when interfacing legacy 5-V logic and higher speed (3.5 ns tpd) is prioritized over ultra-low power |
| NC7SZ125P5X | Lower VCC min (0.9 V); higher tpd (7.5 ns at 3.3 V); no Ioff; 5.5-V tolerant; smaller SC70-5 footprint | Limited thermal performance (RθJA = 303.6°C/W vs. DRL's 295.1°C/W); less robust for sustained 4-mA drive | Select for minimal board area in cost-sensitive consumer devices where 0.9-V operation suffices and Ioff is not required |
Compared with SN74LVC1G125DBVR and NC7SZ125P5X, the SN74AUP1G125DRLR uniquely supports 0.8-V operation, delivers lowest ICC (<1 µA), and provides Ioff for true partial-power-down - making it optimal for battery-critical, multi-rail portable systems requiring guaranteed Hi-Z during VCC=0.
Availability
SN74AUP1G125DRLR is available at Aetrix Electronics and suitable for SSD data path isolation, wireless peripheral interface, tablet power sequencing, audio dock signal routing, and portable consumer electronics requiring stable component supply and long-term lifecycle support.
Supply support for SN74AUP1G125DRLR 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 delivering analog and embedded processing solutions for industrial, automotive, personal electronics, and communications markets.
The SN74AUP1G125 belongs to TI's Advanced Ultra-Low-Power (AUP) logic family, engineered specifically for battery-powered portable applications demanding extended runtime, wide VCC scalability, and robust signal integrity across 0.8–3.6 V.
FAQ
What is the minimum supply voltage for reliable operation of the SN74AUP1G125DRLR?
The SN74AUP1G125DRLR operates reliably down to 0.8 V, as specified in the Recommended Operating Conditions table. At this voltage, it maintains valid logic thresholds (VIH = VCC, VIL = 0 V), functional 3-state control, and ICC ≤ 0.9 µA - enabling use in ultra-low-voltage subsystems such as energy-harvesting sensors or sub-1-V microcontroller domains.
How does the Ioff feature function in the SN74AUP1G125DRLR during power-down?
The Ioff feature in the SN74AUP1G125DRLR disables both inputs and outputs when VCC = 0 V, limiting leakage current to ≤0.6 µA per pin. This prevents back-current flow into powered-down sections of a multi-rail system - a critical requirement for hot-plug interfaces, modular SSDs, and battery-backed memory subsystems where partial power-down is routine.
Can the SN74AUP1G125DRLR drive an LED directly?
Yes, the SN74AUP1G125DRLR can drive an LED directly: its IOL = +4 mA at VCC = 3 V and IOH = –4 mA at VCC = 3 V provide sufficient current for indicator LEDs. When used in sink configuration (LED anode to VCC, cathode to Y), it delivers ~3.3 mA with a 220-Ω series resistor - eliminating need for external transistor drivers in low-power status indication.
What is the recommended pullup resistor value for OE on the SN74AUP1G125DRLR?
Texas Instruments recommends tying OE to VCC via a pullup resistor to ensure Hi-Z state during power-up/down. The minimum value is determined by the driver's current-sinking capability: for typical use, a 10-kΩ resistor suffices. Lower values (e.g., 4.7 kΩ) improve noise immunity; higher values (>100 kΩ) risk slow rise time and transient glitches if board capacitance exceeds 5 pF.
Is the SN74AUP1G125DRLR compatible with 5-V input signals?
Yes, the SN74AUP1G125DRLR accepts input voltages up to 5.5 V regardless of VCC, as confirmed in Section 9.1 of the datasheet. This 5.5-V-tolerant input allows safe interfacing with 5-V microcontrollers or legacy logic while operating at 1.8 V or 3.3 V - enabling seamless level translation without external components.
SN74AUP1G125DRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUP
- Package/Case:
- SOT-553
- 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-5
SN74AUP1G125DRLR FAQ
1.How can I place an order for SN74AUP1G125DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP1G125DRLR 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 SN74AUP1G125DRLR reliable?
The price and inventory of SN74AUP1G125DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP1G125DRLR is usually 5 days.
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Once your SN74AUP1G125DRLR 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 SN74AUP1G125DRLR?
For technical support, including SN74AUP1G125DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP1G125DRLR requirements.
6.How does Aetrix verify that SN74AUP1G125DRLR is sourced from the original manufacturer or authorized distributors?
All SN74AUP1G125DRLR 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 SN74AUP1G125DRLR meets industry standards.
7.What is the process for return or replacement of SN74AUP1G125DRLR?
All SN74AUP1G125DRLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP1G125DRLR, 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 SN74AUP1G125DRLR part is unused and in its original packaging.
Return procedure for SN74AUP1G125DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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