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Diodes Incorporated 74AUP1G126FS3-7
- Part No.:
- 74AUP1G126FS3-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
74AUP1G126FS3-7.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 4DFN
- Quantity:
- Payment:
- Shipping:
Inventory:450
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Product details
Overview
74AUP1G126FS3-7 from Diodes Incorporated is a single non-inverting buffer gate with 3-state output, designed for ultra-low-power portable systems operating from 0.8V to 3.6V. It delivers ±4mA drive at 3.0V, features IOFF partial power-down protection, and uses Schmitt-trigger inputs (250mV hysteresis at 3.0V) for noise immunity in battery-powered interfaces.
For engineers reviewing the 74AUP1G126FS3-7 datasheet, 74AUP1G126FS3-7 pinout, 74AUP1G126FS3-7 application, or 74AUP1G126FS3-7 equivalent, this device supports low-voltage bus buffering, level translation between mixed-supply domains, and power-gated subsystem isolation in space-constrained mobile and IoT endpoints.
Technical Context
This AUP-family CMOS buffer implements a single-channel, non-inverting logic path with active-high Output Enable (OE), enabling high-impedance output when OE = LOW. Its IOFF circuit actively disables I/Os during power-down, preventing back-current flow between powered and unpowered rails.
The input stage integrates Schmitt-trigger action (typ. 250mV hysteresis at VCC = 3.0V), allowing robust operation with slow-rising signals and reducing sensitivity to noise on PCB traces or flex cables in handheld devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 0.8V to 3.6V - supports direct interface with 1.2V, 1.8V, 2.5V, and 3.3V logic domains without level shifters. |
| Output Drive Strength | ±4mA at 3.0V - sufficient to drive 50Ω transmission lines or multiple standard-load CMOS inputs in compact layouts. |
| Static Supply Current | <0.9µA at 25°C - enables multi-year battery life in always-on sensor nodes and wearables. |
| IOFF Leakage Current | ±0.5µA max at 3.6V - ensures safe partial power-down operation without damaging current flow between isolated subsystems. |
| Propagation Delay | 1.4ns typical at 3.3V (CL = 5pF) - meets timing requirements for high-speed control signaling in USB peripherals and display interfaces. |
| Input Hysteresis | 250mV typical at VCC = 3.0V - rejects noise up to ±125mV on input lines, critical for noisy environments like motor-driven consumer electronics. |
| ESD Protection | 2kV HBM / 1kV CDM - exceeds industrial handling requirements and reduces need for external ESD protection components. |
Pinout & Package
X2-DFN0808-4 package: 0.8mm × 0.8mm × 0.35mm body, diamond pad layout, 0.5mm pad pitch, no leads, bottom thermal pad (non-electrical).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data Input | Non-inverting logic input; Schmitt-triggered for noise immunity and slow-edge tolerance. |
| 2 (OE) | Output Enable | Active-HIGH control: HIGH enables buffer output; LOW forces high-impedance (Z) state. |
| 3 (GND) | Ground Reference | Primary return path for all internal logic and output currents; must be low-inductance connection. |
| 4 (Y) | Data Output | Buffered, non-inverting output; enters high-Z when OE = LOW; supports bus-sharing topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low static power | ICC < 0.9µA - minimizes quiescent drain in battery-backed real-time clocks and sleep-mode controllers. |
| IOFF partial power-down | Prevents destructive back-current when VCC = 0V while other system rails remain active - essential for hot-swap and modular designs. |
| Schmitt-trigger inputs | 250mV hysteresis at 3.0V - eliminates false triggering from EMI or crosstalk on long PCB traces or FPC connectors. |
| Wide supply range | 0.8V–3.6V operation - allows direct use across Li-ion (2.7–4.2V), coin-cell (1.5–3.0V), and regulated low-voltage rails without external regulators. |
| Lead-free & green compliance | Halogen- and antimony-free, RoHS-compliant - satisfies global environmental regulations and simplifies end-product certification. |
Applications
| Mobile Device Power Management | USB Peripheral Interface |
|---|---|
|
Use Scenario: Isolating USB data lines during host suspend mode while maintaining VBUS presence. IC Role / Device Role / Timing Role: 3-state buffer controlled by suspend signal to disconnect PHY from controller during low-power states. Use Value: Eliminates leakage paths and prevents spurious wake events, extending standby battery life by >30% in Bluetooth headsets. |
Use Scenario: Level-shifting I²C signals between 1.8V SoC and 3.3V EEPROM in smartphone camera modules. IC Role / Device Role / Timing Role: Non-inverting buffer with rail-to-rail voltage compatibility enables bidirectional signal translation without direction control. Use Value: Reduces BOM count by replacing discrete MOSFET translators; maintains 400kHz I²C timing integrity across voltage domains. |
| Wearable Sensor Hub | Industrial Edge Node |
|
Use Scenario: Enabling/disabling SPI communication to MEMS sensors during motion-detection sleep cycles. IC Role / Device Role / Timing Role: OE-controlled buffer gates SPI MISO/MOSI lines to isolate sensors during deep-sleep (0.8V operation supported). Use Value: Cuts sensor subsystem leakage to sub-µA range, enabling multi-week operation on CR2032 coin cells. |
Use Scenario: Buffering GPIO interrupt lines from legacy 5V industrial sensors into 3.3V microcontroller inputs. IC Role / Device Role / Timing Role: Schmitt-trigger input rejects EMI from motor drives and solenoids; 3-state output isolates MCU during firmware updates. Use Value: Prevents false interrupts caused by 100ns transients; eliminates need for external RC filtering or optocouplers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G126DBVR | Higher ICC (10µA typ), wider VCC (1.65–5.5V), no IOFF, no Schmitt input | Requires external power sequencing; unsuitable for partial power-down systems | Choose when interfacing with 5V logic and IOFF is not required. |
| 74LVC1G125FS3-7 | Inverting function, identical package and electrical specs otherwise | Requires logic inversion in signal path; may increase routing complexity or require additional gates | Choose only if system-level logic requires inverted enable or data polarity. |
Compared with SN74LVC1G126DBVR, the 74AUP1G126FS3-7 offers 10× lower static current and built-in IOFF for safer mixed-rail operation; versus 74LVC1G125FS3-7, it avoids signal inversion overhead in non-inverting data paths.
Availability
74AUP1G126FS3-7 is available at Aetrix Electronics and suitable for battery-powered wearables, USB-C peripheral designs, and industrial edge sensor nodes requiring stable component supply across extended product lifecycles.
Supply support for 74AUP1G126FS3-7 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The 74AUP1G126FS3-7 belongs to the Advanced Ultra Low Power (AUP) logic family, engineered specifically for energy-constrained portable electronics where nanowatt standby operation and robust noise immunity are mandatory design requirements.
FAQ
What is the maximum capacitive load this buffer can drive while maintaining specified propagation delay?
The datasheet specifies tpd performance up to CL = 30pF (e.g., 4.6ns typical at 3.3V). Driving loads beyond 30pF increases delay nonlinearly and may exceed the 10ns max limit at temperature extremes. For >30pF, verify timing margins using the CL-dependent tpd curves on page 7 and consider adding series termination.
Can the 74AUP1G126FS3-7 operate reliably at 0.85V supply?
Yes - the device is fully characterized from 0.8V to 3.6V. At 0.85V, tpd increases to ~20.6ns (CL = 5pF), IOH/IOL reduce to ±20µA, and VIH/VIL thresholds scale proportionally (VIH = 0.80 × VCC = 0.68V). All DC and AC specs remain guaranteed per Recommended Operating Conditions.
Is the X2-DFN0808-4 package thermally enhanced compared to SOT353?
No - θJA is 430°C/W for X2-DFN0808-4 versus 371°C/W for SOT353 (page 8), meaning the smaller DFN has higher thermal resistance due to reduced copper area and no exposed leadframe. Thermal performance depends heavily on PCB copper pour; use ≥25mm² of 2oz copper under the thermal pad for optimal dissipation.
Does the IOFF feature protect against backflow when VCC = 0V and OE = HIGH?
Yes - IOFF activates whenever VCC ≤ 0.2V, regardless of OE state. When VCC = 0V and OE = HIGH, the output remains in high-Z, and both input and output I/Os present <±0.5µA leakage (per Table 4), preventing damaging current flow from external 3.3V or 5V sources into the unpowered device.
74AUP1G126FS3-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DFN0808-4
74AUP1G126FS3-7 FAQ
1.How can I place an order for 74AUP1G126FS3-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AUP1G126FS3-7 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 74AUP1G126FS3-7 reliable?
The price and inventory of 74AUP1G126FS3-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AUP1G126FS3-7 is usually 5 days.
3.What payment methods are accepted for 74AUP1G126FS3-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AUP1G126FS3-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AUP1G126FS3-7?
74AUP1G126FS3-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AUP1G126FS3-7 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 74AUP1G126FS3-7?
For technical support, including 74AUP1G126FS3-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AUP1G126FS3-7 requirements.
6.How does Aetrix verify that 74AUP1G126FS3-7 is sourced from the original manufacturer or authorized distributors?
All 74AUP1G126FS3-7 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 74AUP1G126FS3-7 meets industry standards.
7.What is the process for return or replacement of 74AUP1G126FS3-7?
All 74AUP1G126FS3-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AUP1G126FS3-7, 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 74AUP1G126FS3-7 part is unused and in its original packaging.
Return procedure for 74AUP1G126FS3-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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