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Texas Instruments SN74AUP1G126DSFR
- Part No.:
- SN74AUP1G126DSFR
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFDFN
- Datasheet:
-
SN74AUP1G126DSFR.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:7,000
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Product details
Overview
SN74AUP1G126DSFR from Texas Instruments is a low-power single bus buffer gate with tri-state output, designed for point-to-point signal routing in portable electronics. It features 3.3-V I/O tolerance, 0.8 V to 3.6 V supply range, 4.6 ns max propagation delay at 3.3 V, and Ioff support for partial-power-down operation - enabling use in SSDs, tablets, and wireless peripherals.
For engineers reviewing the SN74AUP1G126DSFR datasheet, SN74AUP1G126DSFR pinout, SN74AUP1G126DSFR application, or SN74AUP1G126DSFR equivalent, key selection criteria include tri-state enable timing (ten/tdis), ultra-low ICC (0.9 µA max), input-disable capability for floating inputs, and SON-6 package compatibility with high-density PCB layouts.
Technical Context
This device implements a non-inverting buffer with active-high output-enable control (OE), delivering Boolean function Y = A. Its balanced CMOS push-pull output supports bidirectional current drive up to ±4 mA across the full VCC range, while maintaining signal integrity via low overshoot/undershoot (<10% of VCC).
The Ioff circuitry ensures outputs enter high-impedance state when VCC = 0 V, preventing backflow current during power sequencing. Input hysteresis improves noise immunity for slow transitions, and overvoltage-tolerant inputs allow mixed-mode interfacing with 3.6-V signals even at 0.8-V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 3.6 V - enables direct interface with sub-1V logic, 1.2V/1.8V/2.5V/3.3V systems without level shifters |
| tpd Max | 4.6 ns at 3.3 V, CL = 5 pF - supports high-speed data routing in portable audio and display interfaces |
| ICC Max | 0.9 µA at TA = –40°C to +85°C - extends battery life in always-on sensor nodes and wearables |
| Ioff Max | 0.6 µA at TA = –40°C to +85°C - guarantees safe isolation during hot-swap or partial power-down sequences |
| Ci Typ | 1.5 pF - minimizes capacitive loading on driving MCU GPIOs, preserving rise/fall time integrity |
| IOZ Max | 0.5 µA at 3.6 V - ensures stable high-impedance state during tri-state operation in shared bus environments |
| ESD HBM | 2000 V - meets Class II latch-up immunity per JESD 78, suitable for handheld device assembly lines |
Pinout & Package
SN74AUP1G126DSFR uses a 6-pin SON package (1.00 mm × 1.00 mm, 0.5-mm pitch) optimized for space-constrained portable designs. The package integrates thermal performance (RθJA = 377.1°C/W) and board-level reliability with wettable flanks for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OE | Input | Active-high output enable; must be pulled low via resistor during power-up to guarantee tri-state default |
| 2 - A | Input | Non-inverting data input; supports floating condition via input-disable feature |
| 3 - GND | Power | Ground reference; decoupling capacitor required within 2 mm for stable low-noise operation |
| 4 - Y | Output | Tri-state buffered output; sinks/sources up to ±4 mA depending on VCC |
| 5 - NC | No-connect | No internal connection - must remain unconnected per TI mechanical drawing SLMS222C |
| 6 - VCC | Power | Positive supply; accepts 0.8–3.6 V; 3.3-V I/O tolerant allows mixed-voltage signaling |
Key Features
| Feature | Design Value |
|---|---|
| Input-disable capability | Allows A input to float without causing undefined output states or increased ICC |
| Ioff partial-power-down | Prevents back-current flow into powered-down sections, protecting host SoC during sleep mode |
| Low dynamic power (Cpd = 4 pF) | Reduces switching energy by >60% vs. standard AUC family at 3.3 V, critical for burst-mode operation |
| Wide VCC range (0.8–3.6 V) | Eliminates need for external regulators in multi-rail battery-powered systems (e.g., Li-ion + LDO) |
| Input hysteresis | Improves noise margin by 150 mV typical, enabling reliable operation near RF modules or DC-DC converters |
Applications
| SSD Controller Interface | Wireless Peripheral Hub |
|---|---|
Use Scenario: Signal buffering between NAND flash controller and status LED indicators in client SSD modules. IC Role / Device Role / Timing Role: Tri-state buffer isolating LED driver lines during firmware updates to prevent spurious illumination. Use Value: Ioff and input-disable features eliminate need for external pull resistors, reducing BOM count by one passive per channel. | Use Scenario: Level-shifting and bus isolation between Bluetooth SoC GPIOs and USB-C accessory detection circuitry in wireless headsets. IC Role / Device Role / Timing Role: Single-line buffer enabling 3.3-V tolerant signaling from 1.8-V SoC to 3.6-V accessory ID pins. Use Value: 0.8–3.6 V VCC range allows direct integration without discrete level translators, saving 0.5 mm² PCB area. |
| Tablet Display Subsystem | Portable Audio Dock |
Use Scenario: Driving backlight enable signals from application processor to LED driver IC in enterprise tablets. IC Role / Device Role / Timing Role: Low-capacitance (1.5 pF) buffer minimizing propagation delay skew across parallel enable lines. Use Value: 4.6 ns max tpd at 3.3 V ensures synchronized backlight activation with display frame start, eliminating visual artifacts. | Use Scenario: Isolating audio codec reset lines from host MCU during USB enumeration in portable docks. IC Role / Device Role / Timing Role: Tri-state buffer providing clean reset assertion only after USB handshake completes. Use Value: OE-controlled disable prevents accidental codec resets during hot-plug events, improving user experience. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G126DBVR | Higher ICC (10 µA typ), narrower VCC (1.65–5.5 V), no input-disable feature | Lacks floating-input support; requires external pull-up/down for unused A | Choose when higher drive strength (±32 mA) is needed and 5-V compatibility is required |
| NC7SZ126P5X | Smaller Ci (1.2 pF), lower Cpd (2.5 pF), but no Ioff or 3.6-V I/O tolerance | Not suitable for partial-power-down systems; limited to 3.3-V-only domains | Prefer for ultra-low-capacitance signal routing where power sequencing is not a concern |
Compared with SN74LVC1G126DBVR and NC7SZ126P5X, SN74AUP1G126DSFR uniquely combines sub-1-µA static current, 3.6-V I/O tolerance, and input-disable functionality - making it the only option qualified for battery-critical, mixed-voltage, and hot-swap-sensitive portable subsystems.
Availability
SN74AUP1G126DSFR is available at Aetrix Electronics and suitable for SSD controller interfaces, wireless peripheral hubs, tablet display subsystems, portable audio docks, and solid-state storage modules requiring stable component supply across extended product lifecycles.
Supply support for SN74AUP1G126DSFR 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 specializing in analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
SN74AUP1G126DSFR belongs to TI's AUP (Advanced Ultra-Low-Power) logic family, engineered specifically for battery-powered portable applications demanding minimal static/dynamic power across ultra-wide voltage ranges.
FAQ
What is the maximum operating temperature for SN74AUP1G126DSFR?
The SN74AUP1G126DSFR is rated for continuous operation from –40°C to +85°C ambient temperature. This range is validated per JEDEC JESD22-A104 and applies under recommended operating conditions including VCC = 0.8 V to 3.6 V and IO ≤ ±4 mA. Thermal derating is not required within this envelope, and RθJA = 377.1°C/W ensures safe junction temperatures under typical PCB layouts.
Does SN74AUP1G126DSFR support true 3.3-V I/O tolerance?
Yes, SN74AUP1G126DSFR supports 3.6-V I/O tolerance on all inputs and outputs, meaning it can safely accept 3.3-V signals even when VCC is as low as 0.8 V. This is confirmed in Section 6.3 (Recommended Operating Conditions) and Section 6.1 (Absolute Maximum Ratings), where VI and VO ratings extend to 4.6 V - enabling robust mixed-voltage interfacing without external clamping or translation.
How does the input-disable feature work on SN74AUP1G126DSFR?
The input-disable feature on SN74AUP1G126DSFR allows the A input to float without causing undefined logic states or elevated ICC. When A is left unconnected, internal circuitry holds the input node at a known voltage, preventing oscillation or leakage-induced current spikes. This behavior is verified in Section 8.3.2 and Electrical Characteristics Table 6.5 (II = 0.1 µA typ at 25°C), eliminating need for external biasing resistors.
What is the recommended OE pull-down resistor value for SN74AUP1G126DSFR?
Texas Instruments recommends tying OE to GND through a pulldown resistor to ensure tri-state default during power-up. The minimum resistor value is determined by the current-sinking capability of the driving source; TI specifies that OE must be held below 0.35×VCC (for VCC ≥ 2.3 V) to guarantee disable. A 10-kΩ resistor is commonly used and validated in Application Report SCBA197 for stable operation across –40°C to +85°C.
Can SN74AUP1G126DSFR be used in partial-power-down systems?
Yes, SN74AUP1G126DSFR is fully specified for partial-power-down applications using its Ioff circuitry. When VCC = 0 V, all inputs and outputs enter high-impedance state with leakage ≤ 0.6 µA (max at –40°C to +85°C), preventing back-current flow into powered-down sections. This capability is documented in Section 8.3.4 and Electrical Characteristics Table 6.5 (Ioff), making it suitable for PCIe hot-plug, USB-C accessory detection, and SSD sleep-mode isolation.
SN74AUP1G126DSFR 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)
SN74AUP1G126DSFR FAQ
1.How can I place an order for SN74AUP1G126DSFR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP1G126DSFR 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 SN74AUP1G126DSFR reliable?
The price and inventory of SN74AUP1G126DSFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP1G126DSFR is usually 5 days.
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SN74AUP1G126DSFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUP1G126DSFR 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 SN74AUP1G126DSFR?
For technical support, including SN74AUP1G126DSFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP1G126DSFR requirements.
6.How does Aetrix verify that SN74AUP1G126DSFR is sourced from the original manufacturer or authorized distributors?
All SN74AUP1G126DSFR 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 SN74AUP1G126DSFR meets industry standards.
7.What is the process for return or replacement of SN74AUP1G126DSFR?
All SN74AUP1G126DSFR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP1G126DSFR, 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 SN74AUP1G126DSFR part is unused and in its original packaging.
Return procedure for SN74AUP1G126DSFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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