My Inquiry
My Account
Texas Instruments SN74AUP1G125DCKT
- Part No.:
- SN74AUP1G125DCKT
- Manufacturer:
- Texas Instruments
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
SN74AUP1G125DCKT.pdf
- Description:
- IC BUF NON-INVERT 3.6V SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:61,182
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74AUP1G125 from Texas Instruments is a single low-power bus buffer gate with 3-state output, designed for signal isolation and level translation in portable electronics. It operates across 0.8 V to 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 - enabling use in mixed-voltage SSD, tablet, and audio dock interfaces.
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, active-low OE control, 3-state output timing (tdis/ten ≤5.9 ns at 3.3 V), and SC70-5 package compatibility with space-constrained PCB layouts.
Technical Context
The SN74AUP1G125 implements a noninverting buffer (Y = A) with active-low output-enable (OE) logic. Its balanced CMOS push-pull output drives ±4 mA at 3 V while maintaining rail-to-rail VOH/VOL compliance under load. The device uses standard CMOS inputs with hysteresis-free switching and integrated clamp diodes for ESD robustness.
Ioff circuitry ensures high-impedance I/O during power-down (VI/VO = 0 V), limiting leakage to ≤0.6 µA over –40°C to +85°C. Input-disable capability allows floating A/OE pins without unintended state transitions, and VCC-tolerant inputs support 3.6-V signals even when VCC = 0.8 V.
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 |
| tpd (max) | 4.6 ns at 3.3 V, CL = 5 pF - supports >100 MHz data rates 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, preserving signal edge integrity |
| Ioff (max) | 0.6 µA at VCC = 0 V - prevents back-current damage during hot-insertion or partial power-down |
| IOH/IOL (min) | –4 mA / +4 mA at VCC = 3 V - sufficient to drive multiple CMOS loads or small LEDs directly |
| ESD Rating | 2000 V HBM - meets industrial-grade handling requirements without additional protection |
Pinout & Package
SN74AUP1G125DCKT is packaged in a 5-pin SC70 (DCK) package measuring 2.00 mm × 1.25 mm, optimized for high-density portable PCBs. Pin 1 is OE (active-low output enable), Pin 2 is A (input), Pin 3 is GND, Pin 4 is Y (3-state output), and Pin 5 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low output enable | Drives Y into high-impedance state when high; must be pulled up to VCC via resistor during power sequencing |
| 2 (A) | Noninverting data input | Accepts 0.8–3.6 V logic levels; tolerant to 3.6-V inputs regardless of VCC |
| 3 (GND) | Ground reference | Primary return path for all internal current; requires low-inductance connection to system ground plane |
| 4 (Y) | 3-state buffered output | Delivers inverted or noninverted logic (Y = A) depending on OE; sinks/sources up to ±4 mA |
| 5 (VCC) | Positive supply | Supplies core logic and output drivers; bypass capacitor (0.1 µF) required within 2 mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low static power | ICC ≤ 0.9 µA max over full temperature range - eliminates quiescent drain in battery-backed circuits |
| Input-disable capability | Allows A and OE pins to float without latch-up or shoot-through - simplifies unpowered interconnect design |
| 3.6-V I/O tolerance | Supports level-shifting from 3.3-V peripherals to 1.8-V or 1.2-V SoCs without external translators |
| Low noise overshoot/undershoot | <10% of VCC - reduces need for series termination or ferrite beads in EMI-sensitive layouts |
| NanoStar™ packaging | SC70-5 footprint (2.0 × 1.25 mm) - enables placement in tight spaces behind displays or near USB-C connectors |
Applications
| SSD Interposer Interface | Tablet Display Power Sequencing |
|---|---|
Use Scenario: Isolating host controller signals from NAND flash modules during hot-swap events in client SSDs. IC Role / Device Role / Timing Role: 3-state buffer controlling command/address bus direction and timing alignment between controller and flash die. Use Value: Ioff protection prevents backfeed during partial power-down; 0.8–3.6 V operation matches both 1.2-V NAND I/O and 3.3-V controller rails. | Use Scenario: Enabling/disabling backlight LED drivers and display panel power rails based on system sleep/wake state. IC Role / Device Role / Timing Role: Output-enabled buffer translating low-power MCU GPIO signals to higher-current panel control lines. Use Value: 4 mA drive capability directly switches PMIC enable pins; low ICC preserves standby current budget in always-on display subsystems. |
| Wireless Headset Audio Path | Portable PDA Memory Expansion |
Use Scenario: Routing I²S clock/data between Bluetooth SoC and audio codec in ultra-thin headset designs. IC Role / Device Role / Timing Role: Low-capacitance (1.5 pF) buffer isolating sensitive audio clock paths from noisy digital domains. Use Value: Minimal added jitter (<4.6 ns tpd) preserves audio sample timing; SC70 package fits within 3-mm board edge clearance. | Use Scenario: Level-shifting SDIO commands between 3.3-V microSD card slot and 1.8-V application processor in legacy PDAs. IC Role / Device Role / Timing Role: Voltage-tolerant buffer enabling bidirectional SDIO data transfer across mismatched voltage domains. Use Value: 3.6-V input tolerance accepts 3.3-V card signals at VCC = 1.8 V; fast tpd maintains SDIO timing margins up to 50 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DCKR | Wider VCC range (1.65–5.5 V); higher ICC (10 µA typ); no Ioff; 5-V tolerant inputs only at VCC ≥ 3 V | Suitable for 5-V legacy systems but lacks partial-power-down safety for battery-powered hot-swap | Select when interfacing with 5-V peripherals and thermal/power constraints allow higher static current |
| NC7SZ125P5X | Lower VCC min (0.9 V); higher tpd (7.5 ns @ 3.3 V); no Ioff; 5.5-V tolerant inputs; smaller SOT-353 (1.25 × 1.25 mm) package | Better for ultra-small footprints where 3 ns slower propagation is acceptable and Ioff not required | Choose for space-critical wearables where 0.75 mm² area saving outweighs loss of Ioff and increased delay |
Compared with SN74LVC1G125DCKR and NC7SZ125P5X, SN74AUP1G125DCKT uniquely combines sub-1-µA ICC, guaranteed Ioff, and 0.8-V operation - making it the only option qualified for always-on, mixed-voltage, and hot-pluggable portable subsystems.
Availability
SN74AUP1G125DCKT is available at Aetrix Electronics and suitable for SSD interposer interfaces, tablet display power sequencing, wireless headset audio routing, and portable PDA memory expansion requiring stable component supply across extended temperature and voltage ranges.
Supply support for SN74AUP1G125DCKT 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, and personal electronics markets.
The AUP family, including SN74AUP1G125DCKT, was engineered specifically for ultra-low-power portable applications - prioritizing nanowatt static consumption, wide VCC scalability, and robust I/O tolerance without sacrificing speed or signal integrity.
FAQ
What is the minimum recommended pull-up resistor value for OE on SN74AUP1G125DCKT?
The OE pin must be tied to VCC through a pull-up resistor to ensure high-impedance state during power-up/down. TI specifies the minimum value based on the driver's current-sinking capability: for typical conditions, a 10-kΩ resistor suffices. However, if OE is driven by a weak-source controller (e.g., open-drain GPIO), the resistor must be sized to limit voltage drop below VIH threshold - verified per Recommended Operating Conditions table in the SN74AUP1G125DCKT datasheet.
Does SN74AUP1G125DCKT support true bidirectional data flow?
No, SN74AUP1G125DCKT is a unidirectional noninverting buffer (Y = A) with 3-state output control. It does not implement automatic direction sensing or bus transceiver logic. For bidirectional applications like I²C or UART level-shifting, discrete dual-direction buffers or dedicated transceivers (e.g., TXS0102) are required - SN74AUP1G125DCKT serves only as a controlled one-way signal gate.
Can SN74AUP1G125DCKT drive an LED directly?
Yes, SN74AUP1G125DCKT can drive small indicator LEDs directly: at VCC = 3.3 V, it sources up to 4 mA (IOL) and sinks up to 4 mA (IOH), sufficient for typical 2–5 mA LEDs. However, current-limiting resistors must be used in series with the LED to prevent exceeding absolute maximum ratings. TI's application note confirms this use case for basic LED driver functions in portable devices.
Is SN74AUP1G125DCKT compatible with 5-V logic inputs?
No - SN74AUP1G125DCKT inputs tolerate up to 3.6 V regardless of VCC, not 5 V. Applying 5-V signals risks permanent damage per Absolute Maximum Ratings (VI max = 4.6 V only under clamp-current limits). For 5-V interface, use SN74LVC1G125 (5-V tolerant) or add external level-shifting circuitry before the SN74AUP1G125DCKT input.
How does the Ioff feature function in SN74AUP1G125DCKT during system power-down?
When VCC = 0 V, the Ioff circuitry disables all I/O pins, limiting leakage current to ≤0.6 µA (max) over –40°C to +85°C. This prevents back-current flow from powered buses into the unpowered SN74AUP1G125DCKT, protecting both the buffer and upstream components during hot-swap or partial-power-down sequences in SSDs and tablets.
SN74AUP1G125DCKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUP
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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:
- SC-70-5
SN74AUP1G125DCKT FAQ
1.How can I place an order for SN74AUP1G125DCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP1G125DCKT 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 SN74AUP1G125DCKT reliable?
The price and inventory of SN74AUP1G125DCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP1G125DCKT is usually 5 days.
3.What payment methods are accepted for SN74AUP1G125DCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUP1G125DCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AUP1G125DCKT?
SN74AUP1G125DCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUP1G125DCKT 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 SN74AUP1G125DCKT?
For technical support, including SN74AUP1G125DCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP1G125DCKT requirements.
6.How does Aetrix verify that SN74AUP1G125DCKT is sourced from the original manufacturer or authorized distributors?
All SN74AUP1G125DCKT 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 SN74AUP1G125DCKT meets industry standards.
7.What is the process for return or replacement of SN74AUP1G125DCKT?
All SN74AUP1G125DCKT units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP1G125DCKT, 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 SN74AUP1G125DCKT part is unused and in its original packaging.
Return procedure for SN74AUP1G125DCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74AUP1G125DCKT Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
