Texas Instruments SN74AUP1G125DPWR
- Part No.:
- SN74AUP1G125DPWR
- Manufacturer:
- Texas Instruments
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
SN74AUP1G125DPWR.pdf
- Description:
- IC BUF NON-INVERT 3.6V 5X2SON
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SN74AUP1G125DPWR from Texas Instruments is a single low-power bus buffer gate with 3-state output, designed for signal isolation and level translation in portable and space-constrained systems. It operates across 0.8 V–3.6 V supply, 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 SN74AUP1G125DPWR datasheet, SN74AUP1G125DPWR pinout, SN74AUP1G125DPWR application, or SN74AUP1G125DPWR equivalent, key selection criteria include its X2SON-5 (0.8 mm × 0.8 mm) footprint, 1.5 pF input capacitance, 0.9 µA max ICC, active-low OE control, and compatibility with battery-powered 1.2 V/1.8 V/3.3 V logic domains.
Technical Context
The SN74AUP1G125DPWR implements a non-inverting buffer with active-low 3-state enable (OE), where Y = A when OE = L, and Y = Hi-Z when OE = H. Its balanced CMOS push-pull output drives ±4 mA at 3 V and supports 24 mA peak sink/source under transient conditions.
It integrates Ioff circuitry to disable I/O leakage during power-down, clamp diodes for ESD robustness (2000 V HBM), and input hysteresis for noise immunity on slow edges. The device requires OE tied to VCC via pullup resistor during power sequencing to guarantee high-impedance state.
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, and 3.3 V logic without level shifters |
| tpd (max) | 4.6 ns at 3.3 V, CL = 5 pF - supports signal integrity up to ~100 MHz in short-trace applications |
| 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 fanout |
| Ioff (max) | 0.6 µA at 0 V supply - prevents back-current damage during partial power-down in multi-rail systems |
| IOH/IOL (min) | –4 mA / +4 mA at VCC = 3 V - sufficient to drive LEDs, small FET gates, or multiple CMOS inputs |
| VIO Tolerance | 3.6 V - allows 5 V-tolerant inputs while operating from 1.8 V supply, enabling voltage translation |
Pinout & Package
X2SON-5 package (0.80 mm × 0.80 mm, 0.5 mm pitch), ultra-compact footprint optimized for high-density PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OE | Active-low output enable input | Drives output to high-impedance when high; must be pulled up to VCC during power-up/down to prevent bus contention |
| 2 - A | Buffer input | Non-inverting data input with hysteresis; accepts 0.8 V–3.6 V logic levels and tolerates up to 4.6 V transient |
| 3 - GND | Ground reference | Return path for all internal logic and output current; requires low-inductance connection to minimize ground bounce |
| 4 - Y | 3-state buffered output | Drives high/low or Hi-Z based on OE; capable of ±4 mA DC drive and fast edge rates into ≤15 pF loads |
| 5 - VCC | Positive supply | Power rail for core logic and output drivers; decoupling capacitor (0.1 µF) required within 2 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic power (Cpd = 4 pF) | Reduces switching noise and heat generation in high-frequency clock/data paths |
| Input-disable capability | Allows A input to float without causing undefined output states or increased ICC |
| Input hysteresis | Improves noise margin on slow-rising signals (e.g., mechanical switches, long traces) without external Schmitt triggers |
| Wide VCC range (0.8 V–3.6 V) | Supports direct integration into sub-1 V FPGA I/O banks and legacy 3.3 V microcontrollers |
| Overshoot/undershoot < 10% of VCC | Ensures signal integrity compliance in USB, I²C, and SPI interconnects without external termination |
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 via OE signal. Use Value: Prevents leakage and contention during low-power states; 0.9 µA ICC extends deep-sleep battery life. |
Use Scenario: Level-shifting and buffering I²C/SPI signals between 3.3 V MCU and 1.8 V Bluetooth SoC in wireless mice/keyboards. IC Role / Device Role / Timing Role: Non-inverting voltage translator with 3.6 V tolerant inputs and 1.8 V compatible outputs. Use Value: Eliminates need for discrete level shifters; 4.6 ns tpd maintains timing margins at 1 MHz I²C speeds. |
| Tablet Display Interface | Audio Dock Signal Routing |
Use Scenario: Enabling/disabling LVDS or eDP auxiliary channel signals between AP and display panel in enterprise tablets. IC Role / Device Role / Timing Role: Single-line buffer with OE-controlled gating for hot-plug detection and panel power sequencing. Use Value: Ioff support blocks backfeed during panel power-off; 1.5 pF CI preserves signal rise time on 50-mm flex traces. |
Use Scenario: Driving LED indicators and isolating control lines (e.g., mute, volume) between dock MCU and audio codec in portable docks. IC Role / Device Role / Timing Role: Low-power buffer with high-drive capability for direct LED anode/cathode control. Use Value: ±4 mA drive eliminates external transistor; 0.8 V min VCC allows operation directly from LDO rails in battery-backed systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DPWR | Wider VCC range (1.65 V–5.5 V); higher ICC (2 µA typ); no Ioff; 5 V tolerant but not 3.6 V I/O tolerant at sub-3 V VCC | Better suited for 5 V legacy interfaces; lacks partial-power-down protection for multi-rail SSDs | Choose for 5 V system compatibility where Ioff is not required |
| NC7SZ125P5X | Smaller SC-70-5 package (2.0 mm × 1.25 mm); similar VCC (1.65 V–5.5 V); no Ioff; 10 ns tpd at 3.3 V | Higher propagation delay limits use in >25 MHz data paths; larger footprint than X2SON-5 | Choose when SC-70 footprint is preferred and speed <25 MHz suffices |
Compared with SN74LVC1G125DPWR and NC7SZ125P5X, SN74AUP1G125DPWR uniquely combines ultra-low ICC (0.9 µA), Ioff-enabled power sequencing, and X2SON-5 size - making it optimal for battery-critical, space-constrained, multi-voltage portable designs where leakage and footprint dominate trade-offs.
Availability
SN74AUP1G125DPWR is available at Aetrix Electronics and suitable for SSDs, wireless peripherals, tablet displays, and audio docks requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SN74AUP1G125DPWR 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, with leadership in low-power logic, precision analog, and power management ICs.
The SN74AUP1G125DPWR belongs to TI's AUP (Advanced Ultra-Low-Power) logic family, engineered specifically for battery-powered portable electronics requiring sub-1 µA static current, wide VCC scalability, and ultra-small packaging.
FAQ
What is the recommended pullup resistor value for OE on SN74AUP1G125DPWR?
The OE pin must be tied to VCC through a pullup resistor to ensure high-impedance state during power-up/down. TI specifies minimum resistance based on driver sink capability: for VCC = 3.3 V and IOH = –4 mA, R ≤ 825 Ω is safe. A 10 kΩ resistor is commonly used for low-current biasing in battery-sensitive designs, verified in TI application report SCBA004.
Does SN74AUP1G125DPWR support true 5 V-tolerant inputs?
No. SN74AUP1G125DPWR supports 3.6 V I/O tolerance - meaning inputs may be driven up to 3.6 V regardless of VCC, but not to 5 V. Absolute maximum rating is 4.6 V, but sustained operation above 3.6 V violates recommended conditions and risks reliability. For 5 V tolerance, SN74LVC1G125DPWR is specified.
Can SN74AUP1G125DPWR drive an LED directly?
Yes. At VCC = 3.3 V, SN74AUP1G125DPWR delivers ≥4 mA sink/source continuously, sufficient for indicator LEDs (typically 2–5 mA). Its 24 mA peak drive (per TI application note) supports brief pulses. Ensure current-limiting resistor is sized for forward voltage and desired brightness; avoid sustained >4 mA to maintain thermal safety.
Is SN74AUP1G125DPWR pin-compatible with other AUP1G125 variants?
Yes - all SN74AUP1G125 variants (DBV, DCK, DRL, DPW, etc.) share identical 5-pin functional pinout: Pin 1 = OE, Pin 2 = A, Pin 3 = GND, Pin 4 = Y, Pin 5 = VCC. The DPW (X2SON-5) differs only in package dimensions and thermal metrics, not pin assignment or electrical behavior.
What is the maximum load capacitance SN74AUP1G125DPWR can drive while maintaining tpd ≤ 5 ns?
At VCC = 3.3 V and TA = 25°C, SN74AUP1G125DPWR achieves tpd ≤ 4.6 ns with CL = 5 pF (datasheet Table 6.7). With CL = 10 pF, tpd rises to 4.3 ns (typ) / 5.2 ns (max); at CL = 15 pF, max tpd = 4.7 ns. Thus, CL ≤ 15 pF ensures tpd stays within 5 ns margin under typical conditions.
SN74AUP1G125DPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUP
- Package/Case:
- 4-XFDFN Exposed Pad
- 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:
- 5-X2SON (0.8x0.8)
SN74AUP1G125DPWR FAQ
1.How can I place an order for SN74AUP1G125DPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP1G125DPWR 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 SN74AUP1G125DPWR reliable?
The price and inventory of SN74AUP1G125DPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP1G125DPWR is usually 5 days.
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SN74AUP1G125DPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUP1G125DPWR 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 SN74AUP1G125DPWR?
For technical support, including SN74AUP1G125DPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP1G125DPWR requirements.
6.How does Aetrix verify that SN74AUP1G125DPWR is sourced from the original manufacturer or authorized distributors?
All SN74AUP1G125DPWR 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 SN74AUP1G125DPWR meets industry standards.
7.What is the process for return or replacement of SN74AUP1G125DPWR?
All SN74AUP1G125DPWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP1G125DPWR, 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 SN74AUP1G125DPWR part is unused and in its original packaging.
Return procedure for SN74AUP1G125DPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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