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Diodes Incorporated 74AUP2G126RA3-7
- Part No.:
- 74AUP2G126RA3-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-XFDFN
- Datasheet:
-
74AUP2G126RA3-7.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,885
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Product details
Overview
74AUP2G126RA3-7 from Diodes Incorporated is a dual 3-state non-inverting buffer IC with independent active-HIGH output enable inputs, operating across 0.8V–3.6V supply range, delivering ±4mA drive at 3.0V, and featuring IOFF partial-power-down protection-used in portable logic interfacing, voltage-level translation, and bus isolation in battery-powered consumer electronics.
For engineers reviewing the 74AUP2G126RA3-7 datasheet, 74AUP2G126RA3-7 pinout, 74AUP2G126RA3-7 application, or 74AUP2G126RA3-7 equivalent, key selection criteria include ultra-low ICC (<0.9µA), Schmitt-trigger input hysteresis (250mV typ. at 3.0V), DFN1210-8 package footprint, and guaranteed operation down to 0.8V for single-cell Li-ion or coin-cell systems.
Technical Context
This device implements two independent CMOS buffer channels, each with separate OE control enabling per-channel high-impedance state entry. Its Advanced Ultra Low Power (AUP) architecture uses optimized transistor sizing and threshold tuning to achieve sub-1µA static current while maintaining robust noise immunity via integrated Schmitt-trigger inputs.
The IOFF circuit actively disables both outputs when VCC = 0V, blocking reverse current flow up to ±50mA clamp rating-critical for hot-swap and multi-rail power sequencing. Input hysteresis (250mV typ. at VCC = 3.0V) tolerates slow-rising signals from mechanical switches or RC networks without oscillation.
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 and single-cell Li-ion (2.7–4.2V) via LDO regulation. |
| Output Drive | ±4mA at 3.0V - sufficient to drive 50Ω transmission lines or fan-out to ≥10 standard CMOS loads under typical conditions. |
| Static Supply Current | ICC < 0.9µA - enables multi-year battery life in always-on sensor nodes or real-time clock backup circuits. |
| IOFF Leakage | ±0.5µA max at 0V VCC - prevents backfeeding into powered-down subsystems during partial power-down modes. |
| Input Hysteresis | 250mV typ. at VCC = 3.0V - eliminates contact bounce or EMI-induced glitches on pushbutton or open-drain inputs. |
| Propagation Delay | tPD = 1.4ns typ. at 3.3V/5pF - meets timing requirements for low-speed serial buses (I²C, SPI control lines) and status signal routing. |
| ESD Rating | HBM >2000V - exceeds JEDEC JESD22-A114 for robust handling in manual assembly and field-replaceable modules. |
Pinout & Package
X2-DFN1210-8 (1.2mm × 1.0mm × 0.35mm, 0.3mm pitch) surface-mount package with wettable flanks for automated optical inspection (AOI) and solder joint reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7 | 1OE / 2OE | Active-HIGH output enable - drives corresponding Y output to high-Z when LOW; enables independent channel gating. |
| 2, 5 | 1A / 2A | Non-inverting data input - accepts 0.8V–3.6V logic levels; Schmitt-triggered for noise immunity. |
| 3, 6 | 2Y / 1Y | Buffered non-inverting output - provides rail-to-rail swing and ±4mA drive capability. |
| 4 | GND | Digital ground reference - must be connected to system ground plane with low-inductance path. |
| 8 | VCC | Power supply input - decoupling capacitor (100nF ceramic) required within 2mm of pin per layout guidelines AP02001. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low static power | ICC < 0.9µA ensures negligible quiescent drain in always-on mode-critical for wearable sensors and IoT edge nodes. |
| IOFF partial-power-down | Blocks reverse current flow when VCC = 0V, enabling safe insertion/removal in live backplanes or multi-voltage SoC interfaces. |
| Schmitt-trigger inputs | 250mV hysteresis at 3.0V suppresses chatter from slow edges, eliminating need for external RC filtering on switch or sensor inputs. |
| Wide VCC range | 0.8V–3.6V operation allows direct use with emerging low-voltage microcontrollers (e.g., ARM Cortex-M0+ at 0.9V core) and legacy 3.3V peripherals. |
| Lead-free & green | Halogen- and antimony-free, RoHS-compliant construction meets IPC-1752A reporting and automotive PPAP material declarations. |
Applications
| Mobile Device Power Sequencing | Low-Power Sensor Interface |
|---|---|
|
Use Scenario: Isolating I²C bus segments between application processor and always-on sensor hub during sleep mode. IC Role / Device Role / Timing Role: Dual buffer gates isolate SDA/SCL lines; independent OE pins allow selective bus segment activation without disrupting other peripherals. Use Value: Reduces system-wide leakage by >12µA via high-Z isolation, extending standby time in smartphones and tablets beyond 72 hours. |
Use Scenario: Conditioning pushbutton or reed-switch inputs to an ultra-low-power MCU in a smart thermostat. IC Role / Device Role / Timing Role: Schmitt-trigger input buffers clean noisy mechanical contacts; 0.8V minimum VCC enables direct connection to coin-cell-supplied logic rails. Use Value: Eliminates external RC debounce components and reduces BOM count by one passive per switch, lowering assembly cost and board area. |
| USB-C Port Controller Logic | Industrial PLC Digital Input Module |
|
Use Scenario: Level-shifting and buffering CC line detection signals between USB-C controller (1.2V) and host MCU (3.3V). IC Role / Device Role / Timing Role: Non-inverting buffer translates logic states bidirectionally while maintaining signal integrity across voltage domains. Use Value: Enables reliable plug-detection at <100ns propagation delay, meeting USB-C specification tCCID timing budget without added gate delay. |
Use Scenario: Interfacing 24V industrial field sensors to 3.3V FPGA-based digital input cards with galvanic isolation. IC Role / Device Role / Timing Role: Acts as input conditioner post-isolator, providing ESD hardening (2kV HBM), noise rejection, and low-leakage high-Z state during diagnostics. Use Value: Improves EMC immunity in factory-floor environments-reducing false triggers by >99% compared to direct FPGA GPIO connection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AUP2G126DSFR | TSSOP-8 package (2.3mm × 2.0mm); higher thermal resistance (θJA = 210°C/W vs. 395°C/W); identical electrical specs. | Better suited for prototyping or hand-soldering; less space-constrained than DFN1210-8 but unsuitable for ultra-thin mobile PCBs. | Select when manual assembly, test fixture compatibility, or thermal margin >100°C/W is prioritized over board area. |
| 74LVC2G126GM,132 | Nexperia part in XSON8 (1.35mm × 1.15mm); VCC range 1.65V–5.5V; no Schmitt-trigger inputs; IOFF supported. | Requires ≥1.65V supply-cannot operate from 0.8V–1.2V rails; lacks hysteresis, necessitating external filtering for noisy inputs. | Choose only if system operates strictly above 1.65V and noise environment is controlled; avoid for battery-backed or mechanical-switch applications. |
Compared with SN74AUP2G126DSFR and 74LVC2G126GM,132, the 74AUP2G126RA3-7 uniquely combines sub-1V operation, integrated Schmitt triggering, and minimal 1.2mm × 1.0mm footprint-making it the sole option for space- and voltage-constrained portable designs requiring robust input conditioning.
Availability
74AUP2G126RA3-7 is available at Aetrix Electronics and suitable for battery-powered wearables, industrial sensor nodes, and USB-C accessory controllers requiring stable component supply across extended product lifecycles.
Supply support for 74AUP2G126RA3-7 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 74AUP logic family targets ultra-low-power portable electronics, emphasizing extended battery life, wide supply flexibility, and robustness in noisy, thermally constrained environments.
FAQ
What is the minimum operating voltage for reliable logic function?
The 74AUP2G126RA3-7 is fully specified from 0.8V to 3.6V. At 0.8V, propagation delay increases to 20.6ns (CL = 5pF), and output drive drops to ±20µA-but all logic functions, including 3-state control and Schmitt-trigger behavior, remain functional per DS36145 Rev. 1-2 Section 6.
Does this device support hot-plug or partial-power-down operation?
Yes. The IOFF circuitry disables outputs when VCC = 0V, limiting reverse current to ±0.5µA max. This meets JEDEC JESD76 requirements for partial-power-down, enabling safe use in live-insertion scenarios such as modular docking stations or field-upgradeable I/O cards.
Can the Schmitt-trigger inputs be disabled or bypassed?
No. Schmitt-trigger action is inherent to the input structure and cannot be disabled. It is always active across the full 0.8V–3.6V VCC range, providing fixed hysteresis (~250mV at 3.0V) regardless of supply voltage or temperature.
What is the maximum capacitive load this buffer can drive reliably?
The device is characterized up to 30pF load capacitance. At CL = 30pF and VCC = 3.3V, tPD remains ≤5.8ns and output rise/fall times stay within specification. Driving >30pF may increase delay nonlinearly and risk overshoot; external series termination is recommended for >50pF loads.
74AUP2G126RA3-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74AUP
- Package/Case:
- 8-XFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- 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-DFN1210-8
74AUP2G126RA3-7 FAQ
1.How can I place an order for 74AUP2G126RA3-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AUP2G126RA3-7 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 74AUP2G126RA3-7 reliable?
The price and inventory of 74AUP2G126RA3-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AUP2G126RA3-7 is usually 5 days.
3.What payment methods are accepted for 74AUP2G126RA3-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AUP2G126RA3-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AUP2G126RA3-7?
74AUP2G126RA3-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AUP2G126RA3-7 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 74AUP2G126RA3-7?
For technical support, including 74AUP2G126RA3-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AUP2G126RA3-7 requirements.
6.How does Aetrix verify that 74AUP2G126RA3-7 is sourced from the original manufacturer or authorized distributors?
All 74AUP2G126RA3-7 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 74AUP2G126RA3-7 meets industry standards.
7.What is the process for return or replacement of 74AUP2G126RA3-7?
All 74AUP2G126RA3-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AUP2G126RA3-7, 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 74AUP2G126RA3-7 part is unused and in its original packaging.
Return procedure for 74AUP2G126RA3-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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