My Inquiry
My Account
Texas Instruments SN74AUP1G125DSFR
- Part No.:
- SN74AUP1G125DSFR
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFDFN
- Datasheet:
-
SN74AUP1G125DSFR.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:895
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74AUP1G125DSFR from Texas Instruments is a single low-power 3-state bus buffer gate with active-low output enable (OE), designed for voltage-level translation and signal isolation in space-constrained portable electronics. 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 1.5 pF input capacitance - enabling use in SSDs, tablets, and wireless peripherals where ultra-low static current (0.9 µA max) and noise immunity are critical.
For engineers reviewing the SN74AUP1G125DSFR datasheet, SN74AUP1G125DSFR pinout, SN74AUP1G125DSFR application, or SN74AUP1G125DSFR equivalent, key selection criteria include its 6-pin SON (DSF) package footprint, 3.6-V I/O tolerance for mixed-voltage interfacing, guaranteed high-impedance state during power sequencing via OE pull-up, and verified performance under –40°C to +85°C industrial temperature range.
Technical Context
The SN74AUP1G125DSFR implements a non-inverting buffer (Y = A) with active-low 3-state control. Its balanced CMOS push-pull output drives ±4 mA at 3 V while maintaining rail-to-rail VOH/VOL compliance across full VCC range. The Ioff circuit ensures <0.6 µA leakage when VCC = 0 V, enabling safe back-driving in partial-power-down systems.
Input hysteresis improves noise immunity for slow transitions, and clamp diodes protect against transient overvoltage. The device meets JEDEC JESD22-C101 (1000-V CDM) and JS-001 (2000-V HBM) ESD standards, with thermal resistance RθJA = 377.1°C/W in its 1.00 mm × 1.00 mm SON package.
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 - supports signal integrity in high-speed data paths up to ~100 MHz with CL = 5 pF. |
| ICC Max | 0.9 µA at TA = –40°C to +85°C - extends battery life in always-on portable subsystems. |
| Ioff Max | 0.6 µA at VCC = 0 V - prevents back-current damage during hot-insertion or staggered power sequencing. |
| CI Typ | 1.5 pF - minimizes capacitive loading on driving sources, preserving edge rate in dense PCB layouts. |
| IOH/IOL | –4 mA / +4 mA at VCC = 3 V - sufficient to drive multiple CMOS inputs or low-current LEDs directly. |
| ESD Rating | 2000-V HBM, 1000-V CDM - meets industrial handling requirements without additional protection circuitry. |
Pinout & Package
SN74AUP1G125DSFR uses a 6-pin SON (Small Outline No-Lead) package measuring 1.00 mm × 1.00 mm with wettable flank terminals. The package is moisture-sensitive level 1 (MSL-1) and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low output enable input | Drives Y to high-impedance when high; must be pulled up to VCC during power-up/down to guarantee Hi-Z state. |
| 2 (A) | Buffer input | Non-inverting data input with hysteresis; accepts voltages up to 4.6 V (5.5-V tolerant per application note). |
| 3 (GND) | Ground reference | Primary return path for all internal logic and output currents; requires low-inductance connection to system ground plane. |
| 4 (Y) | 3-state buffered output | CMOS push-pull output capable of sourcing/sinking ±4 mA; exhibits overshoot/undershoot <10% of VCC. |
| 5 (VCC) | Positive supply | Power rail for core logic and output drivers; bypass capacitor (0.1 µF) required within 2 mm of this pin. |
| 6 (N.C.) | No connection | Internally unconnected terminal; must remain floating - no external connection or solder mask opening required. |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic power (Cpd = 4 pF) | Reduces switching-induced supply ripple and EMI in high-frequency clock/data lines. |
| Input-disable capability | Allows A to float without causing undefined logic states or increased ICC, simplifying interconnect design. |
| 3.6-V I/O tolerance | Enables reliable interfacing between 3.3-V hosts and 5-V peripherals without external level translators. |
| Wide VCC range (0.8 V–3.6 V) | Supports direct operation from single-cell Li-ion (2.7–4.2 V) or regulated 1.8-V/2.5-V rails in wearables and IoT sensors. |
| Overshoot/undershoot <10% of VCC | Minimizes signal integrity risk in unterminated traces, reducing need for series termination resistors. |
Applications
| SSD Interposer Interface | Wireless Peripheral Data Isolation |
|---|---|
Use Scenario: Isolating host controller signals from NAND flash channels in client SSD modules to prevent contention during firmware updates. IC Role / Device Role / Timing Role: 3-state buffer controlling bidirectional data flow between PCIe controller and NAND die; enables hot-swap-safe channel disable. Use Value: Ioff support prevents backfeed into powered-down NAND dies, while 1.5-pF CI preserves timing margins on 200-MHz toggle rates. | Use Scenario: Level-shifting and isolating USB HID signals (e.g., keyboard scan matrix) from a 3.3-V MCU to a 1.8-V Bluetooth SoC. IC Role / Device Role / Timing Role: Voltage-tolerant buffer enabling mixed-supply communication; OE synchronized to BLE sleep/wake cycles. Use Value: 3.6-V I/O tolerance allows 3.3-V MCU outputs to safely drive SN74AUP1G125DSFR inputs, eliminating discrete level shifters. |
| Tablet Display Power Sequencing | Audio Dock Signal Routing |
Use Scenario: Enabling/disabling LVDS or eDP clock lanes during panel power-up to avoid glitches on display initialization. IC Role / Device Role / Timing Role: Output-enabled buffer gating clock distribution to timing controller; OE controlled by PMIC power-good signal. Use Value: Guaranteed Hi-Z during VCC ramp-up (via OE pull-up) prevents false clock edges that could corrupt display firmware handshake. | Use Scenario: Buffering I²S data and control lines between audio codec and dock microcontroller in portable docking stations. IC Role / Device Role / Timing Role: Low-noise signal repeater isolating codec from noisy USB/charging circuits; reduces crosstalk-induced jitter. Use Value: Overshoot/undershoot <10% of VCC ensures clean I²S edges at 1.536 MHz, maintaining THD+N <–95 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DSFR | Higher ICC (10 µA typ), narrower VCC range (1.65 V–5.5 V), no Ioff support | Not suitable for partial-power-down systems; requires minimum 1.65-V supply | Choose only if operating above 1.65 V and Ioff is unnecessary |
| 74AUP1G125GW,125 | NXP variant in SOT353 (5-pin SC-70); identical electrical specs but different package thermal profile (RθJA = 303.6°C/W) | Same functional behavior; board layout change required due to 5-pin vs. 6-pin footprint | Select when SC-70 assembly infrastructure exists and 1.00×1.00 mm SON is unavailable |
Compared with SN74LVC1G125DSFR and 74AUP1G125GW,125, the SN74AUP1G125DSFR uniquely combines sub-1-µA static current, 0.8-V operation, and Ioff - making it the only choice for ultra-low-power, mixed-voltage, and hot-plug-capable designs.
Availability
SN74AUP1G125DSFR is available at Aetrix Electronics and suitable for SSD interposers, wireless peripheral interfaces, tablet display power sequencing, audio dock routing, and portable consumer electronics requiring stable component supply across extended temperature and voltage ranges.
Supply support for SN74AUP1G125DSFR 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 AUP (Advanced Ultra-Low-Power) family, including SN74AUP1G125DSFR, was engineered specifically for battery-powered portable devices demanding nanowatt static power, wide VCC scalability, and robust signal integrity at minimal silicon area.
FAQ
What is the recommended pull-up resistor value for OE on SN74AUP1G125DSFR?
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 resistor value based on the driver's current-sinking capability - typically 10 kΩ to 100 kΩ for standard 3.3-V operation. For 0.8-V VCC, a lower value (e.g., 4.7 kΩ) may be needed to guarantee sufficient current to hold OE logic-low during active operation. Always verify with actual board-level rise/fall time measurements.
Does SN74AUP1G125DSFR support 5-V input signals?
Yes - SN74AUP1G125DSFR inputs are over-voltage tolerant up to 4.6 V (absolute maximum rating), and application notes confirm 5.5-V tolerance under current-limited conditions. This allows safe interfacing with 5-V legacy peripherals when driven through series resistors or when used in open-drain configurations with appropriate current limiting.
Can SN74AUP1G125DSFR drive an LED directly?
Yes - SN74AUP1G125DSFR can source or sink up to 4 mA at 3 V, sufficient for indicator LEDs with series resistors ≥1 kΩ. However, it is not rated for continuous high-current LED driving; for sustained illumination, use a dedicated LED driver or add a MOSFET buffer. The device's low Cpd (4 pF) also minimizes capacitive loading in LED strobe timing circuits.
Is the N.C. pin on SN74AUP1G125DSFR required to be grounded or left floating?
Pin 6 (N.C.) on SN74AUP1G125DSFR is internally unconnected and must remain floating - no grounding, pulling, or soldering is permitted. TI's mechanical drawings and package documentation explicitly prohibit connection to any net. Leaving it unmasked or exposed does not affect performance or reliability.
How does Ioff functionality behave during system sleep mode in SN74AUP1G125DSFR?
When VCC drops to 0 V during system sleep, SN74AUP1G125DSFR's Ioff circuit limits leakage current into/out of A, OE, and Y pins to ≤0.6 µA (max), preventing unintended power draw or signal corruption from other powered rails. This allows safe use in multi-rail systems where only the buffer's VCC is gated while host and peripheral supplies remain active.
SN74AUP1G125DSFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUP
- Package/Case:
- 6-XFDFN
- 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:
- 6-SON (1x1)
SN74AUP1G125DSFR FAQ
1.How can I place an order for SN74AUP1G125DSFR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP1G125DSFR 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 SN74AUP1G125DSFR reliable?
The price and inventory of SN74AUP1G125DSFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP1G125DSFR is usually 5 days.
3.What payment methods are accepted for SN74AUP1G125DSFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUP1G125DSFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AUP1G125DSFR?
SN74AUP1G125DSFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUP1G125DSFR 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 SN74AUP1G125DSFR?
For technical support, including SN74AUP1G125DSFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP1G125DSFR requirements.
6.How does Aetrix verify that SN74AUP1G125DSFR is sourced from the original manufacturer or authorized distributors?
All SN74AUP1G125DSFR 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 SN74AUP1G125DSFR meets industry standards.
7.What is the process for return or replacement of SN74AUP1G125DSFR?
All SN74AUP1G125DSFR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP1G125DSFR, 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 SN74AUP1G125DSFR part is unused and in its original packaging.
Return procedure for SN74AUP1G125DSFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74AUP1G125DSFR 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…
