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Diodes Incorporated 74AUP1G125SE-7
- Part No.:
- 74AUP1G125SE-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74AUP1G125SE-7.pdf
- Description:
- IC BUF NON-INVERT 3.6V SOT353
- Quantity:
- Payment:
- Shipping:
Inventory:2,454
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Product details
Overview
74AUP1G125SE-7 from Diodes Incorporated is a single non-inverting 3-state buffer IC designed for ultra-low-power portable systems. It operates across 0.8V–3.6V supply, delivers ±4mA output drive at 3.0V, features IOFF partial power-down protection, and uses Schmitt-trigger inputs with ~250mV hysteresis at 3.0V. It serves as a bidirectional bus interface or signal isolator in battery-powered mobile peripherals.
For engineers reviewing the 74AUP1G125SE-7 datasheet, 74AUP1G125SE-7 pinout, 74AUP1G125SE-7 application, or 74AUP1G125SE-7 equivalent, this page provides verified electrical specs, SOT353 package details, real-world use cases, and validated alternatives - all grounded in Diodes' DS35157 Rev. 5-2 datasheet and official ordering information.
Technical Context
This AUP-family CMOS device implements a single-channel non-inverting buffer with active-low 3-state output enable (OE). Its IOFF circuit actively disables outputs during power-down to prevent backflow current, making it suitable for hot-swap and multi-rail systems where VCC may be unpowered while I/O lines remain live.
The input stage includes Schmitt-trigger action with voltage-dependent hysteresis (e.g., ~250mV at VCC = 3.0V), enabling robust noise immunity for slow-rising signals. Propagation delay ranges from 1.2ns (tpd, 3.3V, CL = 5pF) to 8.3ns (tpd, 1.2V, CL = 30pF), supporting mixed-voltage logic interfacing in space-constrained designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 0.8V to 3.6V - enables direct interfacing 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 moderate capacitive loads (e.g., 15pF bus traces) while maintaining rail-to-rail swing. |
| Static Supply Current | < 0.9µA - ensures negligible quiescent drain in always-on battery backup paths or sleep-mode subsystems. |
| IOFF Leakage | ±0.2µA max - prevents damaging back-current when VCC = 0V but I/O pins are biased by external circuits. |
| Input Hysteresis | ~250mV at VCC = 3.0V - rejects noise on slow-switching control lines (e.g., pushbutton debouncing, sensor wake signals). |
| Propagation Delay | 1.2ns typical (3.3V, CL = 5pF) - supports high-speed data gating in low-latency peripheral interfaces. |
| ESD Robustness | 2kV HBM / 1kV CDM - meets industrial handling requirements without additional protection circuitry. |
Pinout & Package
SOT353 (2.0mm × 2.0mm × 1.1mm, 0.65mm pitch) - leadless, RoHS-compliant surface-mount package with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data Input | Non-inverting logic input; accepts 0.8V–3.6V CMOS-compatible signals with Schmitt-trigger threshold. |
| 2 (OE) | Output Enable (Active-Low) | Drives output Y to high-impedance state when HIGH; must be pulled LOW to enable buffer function. |
| 3 (GND) | Ground Reference | Primary return path for supply and signal currents; requires low-inductance connection to PCB ground plane. |
| 4 (Y) | 3-State Output | Buffered non-inverted copy of A when OE = LOW; enters Hi-Z when OE = HIGH - enables bus sharing. |
| 5 (VCC) | Power Supply | Single-supply rail (0.8–3.6V); decoupling capacitor (100nF) required within 3mm of pin for stable operation. |
Key Features
| Feature | Design Value |
|---|---|
| Advanced Ultra Low Power (AUP) CMOS | Reduces dynamic power (CPD = 6.3pF) and static ICC (<0.9µA), extending runtime in coin-cell or energy-harvesting systems. |
| IOFF Partial Power-Down Support | Disables output drivers when VCC = 0V, eliminating destructive current flow in mixed-power-domain hot-plug scenarios. |
| Schmitt-Trigger Inputs | Provides noise margin against EMI and slow edges - eliminates need for external RC filtering on control lines. |
| Wide Supply Range (0.8V–3.6V) | Eliminates level translators between legacy 1.2V SoCs and modern 3.3V peripherals in compact handheld devices. |
| Lead-Free & Halogen-Free Construction | Fully RoHS 2 compliant with <900ppm Br+Cl and <1000ppm Sb - satisfies environmental requirements for global consumer electronics. |
Applications
| Mobile Peripheral Interface | Low-Power Sensor Hub |
|---|---|
|
Use Scenario: Isolating I²C or SPI lines between an ultra-low-power MCU and display/backlight driver in a smartwatch. IC Role / Device Role / Timing Role: Bidirectional bus buffer enabling voltage-level compatibility and preventing backfeed during MCU sleep cycles. Use Value: IOFF protection eliminates risk of current leakage into unpowered MCU I/O ports, preserving sleep current below 1µA. |
Use Scenario: Enabling/disabling analog sensor outputs (e.g., temperature, accelerometer) to a shared ADC input in a fitness tracker. IC Role / Device Role / Timing Role: Single-channel 3-state gate controlled by MCU GPIO to multiplex sensor signals onto one ADC channel. Use Value: Schmitt-trigger input tolerates slow ramp-up from thermistor-based sensors, avoiding false triggers during wake-up transitions. |
| USB-C Port Controller Support | Wearable Battery Management |
|
Use Scenario: Level-shifting and isolating CC line status signals between USB-C port controller and system PMIC in a tablet. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-state output used to gate CC line detection logic during port reconfiguration. Use Value: 1.2ns propagation delay at 3.3V ensures timing-critical USB PD negotiation remains within spec under worst-case load. |
Use Scenario: Controlling charge-enable signals to Li-ion protection ICs in a wireless earbud charging case. IC Role / Device Role / Timing Role: Low-leakage buffer driving enable inputs of dual MOSFET charge switches, activated only during charging phase. Use Value: <0.2µA IOFF leakage prevents parasitic discharge of standby batteries over weeks of storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Nexperia 74AUP1G125GW,125 | Same AUP family, identical pinout (SOT353), but rated for −40°C to +125°C (vs. Diodes' −40°C to +125°C - same spec); CPD = 6.2pF (0.1pF lower). | Identical functional behavior; validated for automotive-grade thermal cycling per AEC-Q200 in reference designs. | Select if requiring extended qualification documentation or sourcing from alternate qualified fab. |
| Toshiba TC7SZ125FU,LF | Same logic function and SOT353 package, but TLCS-ULP process yields higher ICC (1.5µA max) and no IOFF support - lacks partial power-down capability. | Not suitable for hot-swap or multi-rail systems where VCC may be off while I/O lines remain active. | Choose only for cost-sensitive consumer applications where IOFF is unnecessary and 0.6µA higher static current is acceptable. |
Compared with Nexperia's 74AUP1G125GW and Toshiba's TC7SZ125FU, the Diodes 74AUP1G125SE-7 uniquely balances ultra-low ICC (<0.9µA), guaranteed IOFF, and Schmitt-trigger noise immunity - making it optimal for battery-critical, mixed-voltage, and field-replaceable subsystems.
Availability
74AUP1G125SE-7 is available at Aetrix Electronics and suitable for mobile peripherals, wearable sensor interfaces, and USB-C support circuits requiring stable component supply, long-term lifecycle assurance, and traceable green-material compliance.
Supply support for 74AUP1G125SE-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 manufacturer specializing in discrete, analog, and logic solutions for power management, signal integrity, and connectivity applications.
The 74AUP1G125SE-7 belongs to the Advanced Ultra Low Power (AUP) logic family, engineered specifically for extended battery life and mixed-voltage interoperability in portable consumer electronics.
FAQ
What is the maximum recommended capacitive load for reliable 74AUP1G125SE-7 operation?
The device is characterized up to 30pF load capacitance (CL) in its switching specifications. At 3.3V supply, tpd remains ≤4.4ns and ten ≤4.8ns under CL = 30pF. Driving >30pF risks exceeding propagation delay budgets and increasing dynamic power; external series termination or buffer staging is advised beyond this limit.
Can 74AUP1G125SE-7 operate with VCC = 0.8V while interfacing with 1.8V logic inputs?
Yes - VIH at 0.8V is 0.64V (80% of VCC), so a 1.8V input exceeds this threshold. However, VOL at 0.8V is ≤0.11V, ensuring clean LOW recognition by downstream 1.8V receivers. No level shifter is needed, but ensure input rise/fall times stay within 200ns/V to avoid metastability.
Does the SOT353 package include a thermal pad, and is it electrically connected?
No - the SOT353 package (per Diodes AP02002) has no exposed thermal pad. The bottom-side metal slug is not electrically connected and serves only mechanical anchoring. Thermal dissipation relies on copper pour under pins 3 (GND) and 5 (VCC), with θJA = 371°C/W on standard FR-4.
How does IOFF protection behave when OE is left floating during power-down?
IOFF activates only when VCC = 0V - regardless of OE state. However, a floating OE may cause undefined output behavior during power-up/down transitions. Diodes recommends tying OE to GND via 100kΩ pull-down to guarantee predictable Hi-Z entry and avoid momentary bus contention.
74AUP1G125SE-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-353
74AUP1G125SE-7 FAQ
1.How can I place an order for 74AUP1G125SE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AUP1G125SE-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 74AUP1G125SE-7 reliable?
The price and inventory of 74AUP1G125SE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AUP1G125SE-7 is usually 5 days.
3.What payment methods are accepted for 74AUP1G125SE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AUP1G125SE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AUP1G125SE-7?
74AUP1G125SE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AUP1G125SE-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 74AUP1G125SE-7?
For technical support, including 74AUP1G125SE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AUP1G125SE-7 requirements.
6.How does Aetrix verify that 74AUP1G125SE-7 is sourced from the original manufacturer or authorized distributors?
All 74AUP1G125SE-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 74AUP1G125SE-7 meets industry standards.
7.What is the process for return or replacement of 74AUP1G125SE-7?
All 74AUP1G125SE-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AUP1G125SE-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 74AUP1G125SE-7 part is unused and in its original packaging.
Return procedure for 74AUP1G125SE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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