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onsemi NC7SZ125FHX-L22175
- Part No.:
- NC7SZ125FHX-L22175
- Manufacturer:
- onsemi
- Package:
- 6-UFDFN
- Datasheet:
-
NC7SZ125FHX-L22175.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,703
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Product details
Overview
NC7SZ125FHX-L22175 from onsemi is a single ultra-high-speed CMOS buffer with three-state output, designed for level translation and bus isolation in space-constrained digital systems. It operates across 1.65 V to 5.5 V VCC, delivers ±24 mA output drive at 3 V, and achieves 2.6 ns typical propagation delay into 50 pF at 5 V - enabling high-speed signal conditioning in low-voltage logic interfaces.
For engineers reviewing the NC7SZ125FHX-L22175 datasheet, pinout, applications, or equivalent options, key selection criteria include its overvoltage-tolerant inputs (up to 5.5 V independent of VCC), power-down high-impedance I/O behavior, and MicroPak2 package compatibility with fine-pitch PCB layouts.
Technical Context
The NC7SZ125FHX-L22175 implements a single non-inverting buffer with active-low three-state enable (OE), supporting bidirectional bus control and voltage-level translation between mixed-supply domains. Its input structure tolerates 5.5 V regardless of VCC, allowing safe interfacing between 5 V legacy peripherals and 1.8–3.3 V logic cores.
It features proprietary noise/EMI reduction circuitry and operates reliably from −40 °C to +85 °C. The device enters high-impedance state on both inputs and outputs when VCC = 0 V, preventing back-powering and ensuring clean power sequencing in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - supports interoperability across 1.8 V, 2.5 V, 3.3 V, and 5 V logic families without level shifters. |
| tPD (Typ.) | 2.6 ns into 50 pF at 5 V - enables sub-400 MHz signal routing in compact timing-critical paths. |
| Output Drive | ±24 mA at 3 V VCC - drives multiple LVTTL/LVCMOS loads or short PCB traces without buffering. |
| Input Overvoltage | Up to 5.5 V independent of VCC - permits 5 V-to-3 V translation without external clamping diodes. |
| IOFF Leakage | ≤10 µA at VCC = 0 V - prevents current injection during power-down or hot-swap events. |
| Package | MicroPak2 (UDFN6, 1.0 mm × 1.0 mm, 0.35 mm pitch) - provides minimal footprint and thermal resistance (154 °C/W). |
Pinout & Package
NC7SZ125FHX-L22175 is packaged in MicroPak2 (UDFN6, Case 517DP), a 1.0 mm × 1.0 mm, 0.35 mm pitch, 6-terminal leadless package with wettable flanks for automated optical inspection. Pin 1 is marked by a laser-etched dot; the package is Pb-free, halogen-free, and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low three-state enable input | Drives output Y to high-impedance when HIGH; enables buffer pass-through when LOW. |
| 2 (A) | Buffer input | Accepts logic signals up to 5.5 V regardless of VCC; no external pull-up required. |
| 3 (GND) | Ground reference | Return path for all internal logic and output current; must be low-inductance connection. |
| 4 (Y) | Three-state non-inverting output | Drives load actively when OE = LOW; floats to high-Z when OE = HIGH - isolates bus segments. |
| 5 (NC) | No-connect terminal | Internally unconnected; must remain floating - not tied to GND or VCC. |
| 6 (VCC) | Supply voltage | Power rail for internal logic and output stage; bypass capacitor (0.1 µF) required within 2 mm. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-High Speed | 2.6 ns tPD (typ.) at 5 V enables use in >300 MHz clock/data paths with minimal skew. |
| Overvoltage-Tolerant Inputs | 5.5 V tolerant inputs allow direct connection to 5 V buses while powered from 1.8 V or 3.3 V rails. |
| Power-Down High-Z I/O | Inputs and outputs go high-impedance at VCC = 0 V - eliminates backfeeding and simplifies power sequencing. |
| Low Dynamic Power | CPD = 17 pF at 3.3 V - reduces switching current and EMI in high-frequency toggle applications. |
| EMI Reduction Circuitry | Proprietary slew-rate control minimizes ground bounce and radiated emissions in dense layouts. |
Applications
| Industrial Sensor Interface | Portable MCU Peripherals |
|---|---|
|
Use Scenario: Isolating analog sensor ADC data lines from noisy microcontroller GPIOs in battery-powered condition monitoring nodes. IC Role / Device Role / Timing Role: Three-state buffer providing bidirectional signal isolation and voltage translation between 3.3 V MCU and 5 V sensor outputs. Use Value: Prevents ground loop coupling and allows independent power cycling of sensor and MCU without latch-up risk. |
Use Scenario: Enabling shared SPI bus access among multiple low-power peripherals (e.g., EEPROM, temperature sensor, RTC) on an ARM Cortex-M0+ SoC. IC Role / Device Role / Timing Role: Bus isolation gate controlled by MCU GPIO to prevent contention during peripheral initialization or sleep mode. Use Value: Eliminates need for discrete MOSFET switches; ±24 mA drive ensures fast edge rates even with 30 pF total bus capacitance. |
| USB-C Power Delivery Logic | Automotive Body Control Module |
|
Use Scenario: Level-shifting CC line status signals between 5 V USB PD controller and 1.8 V system management unit in USB-C docking stations. IC Role / Device Role / Timing Role: Input-tolerant buffer translating 5 V CC line states to 1.8 V logic while maintaining <5 ns propagation delay. Use Value: Enables direct interface without resistive dividers - preserves signal integrity and reduces BOM count. |
Use Scenario: Driving LED indicators and small solenoids from 3.3 V automotive microcontrollers while interfacing with 5 V CAN transceiver status pins. IC Role / Device Role / Timing Role: Voltage-translating buffer with robust ESD protection (4 kV HBM) for under-hood I/O expansion. Use Value: Meets AEC-Q100 stress requirements via onsemi's qualified process; eliminates need for discrete translation ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buffer-with-three-state-output applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DBVR | Same 5-pin SOT-23 package; 3.3 V optimized (1.65–5.5 V); tPD = 3.7 ns (typ.) at 3.3 V; lower drive (±24 mA only at 3.3 V). | Preferred where board space allows SOT-23-5 and thermal budget permits higher RθJA (320 °C/W vs. 154 °C/W). | Select when existing layout uses SOT-23-5 and cost sensitivity outweighs footprint/thermal advantages of MicroPak2. |
| 74LVC1G125GW,125 | SC-70-5 (SC-88A) package; identical VCC range and drive; tPD = 2.9 ns (typ.) at 3.3 V; same pinout as SC-88A variant of NC7SZ125. | Better suited for reflow-compatible hand-soldering than MicroPak2; lacks wettable flanks for AOI. | Choose when assembly process lacks UDFN-capable solder paste printing or X-ray inspection capability. |
Compared with SN74LVC1G125DBVR and 74LVC1G125GW,125, the NC7SZ125FHX-L22175 offers superior thermal performance and smallest footprint due to MicroPak2 packaging, while maintaining identical functional behavior and broader overvoltage tolerance - making it optimal for ultra-dense portable and automotive modules.
Availability
NC7SZ125FHX-L22175 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable MCU peripheral expansion, USB-C power delivery logic, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for NC7SZ125FHX-L22175 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient innovation for automotive, industrial, cloud, medical, and IoT applications.
The NC7SZ125FHX-L22175 belongs to the TinyLogic UHS family - engineered for ultra-small footprint, high-speed signal conditioning in battery-powered and thermally constrained systems where traditional logic buffers exceed size or power budgets.
FAQ
What is the operating temperature range for NC7SZ125FHX-L22175?
The NC7SZ125FHX-L22175 is specified for operation from −40 °C to +85 °C ambient temperature. This range is validated per onsemi's Recommended Operating Conditions table and applies to all electrical parameters including propagation delay, output drive, and leakage current. The device maintains full functionality across this range when used with appropriate PCB thermal design for the MicroPak2 package.
Does NC7SZ125FHX-L22175 support 5 V logic inputs while powered from 1.8 V?
Yes, NC7SZ125FHX-L22175 supports input voltages up to 5.5 V independent of VCC. When powered from 1.8 V, its inputs tolerate 5 V signals without damage or clamping - enabling direct 5 V-to-1.8 V level translation. This is confirmed in the Absolute Maximum Ratings and DC Electrical Characteristics sections of the datasheet.
What is the function of the NC pin on NC7SZ125FHX-L22175?
Pin 5 on NC7SZ125FHX-L22175 is designated NC (No Connect) and is internally unconnected. It must remain electrically floating - neither tied to GND nor VCC. This pin exists for mechanical symmetry and package compatibility; routing traces or vias to it may compromise signal integrity or thermal performance of adjacent pins.
How does the three-state enable (OE) work on NC7SZ125FHX-L22175?
The OE pin on NC7SZ125FHX-L22175 is active-low: when OE = LOW, the output Y follows input A (non-inverting buffer action); when OE = HIGH, Y enters high-impedance state. This behavior holds across the full 1.65–5.5 V VCC range and persists even when VCC = 0 V - ensuring safe bus isolation during power transitions.
Is NC7SZ125FHX-L22175 pin-compatible with other TinyLogic variants like NC7SZ05 or NC7SZ17?
No, NC7SZ125FHX-L22175 is not pin-compatible with NC7SZ05 (inverter) or NC7SZ17 (buffer with Schmitt-trigger input). While all share the MicroPak2 package outline, their pin assignments differ: NC7SZ125FHX-L22175 uses Pin 1 = OE, Pin 2 = A, Pin 4 = Y; NC7SZ05 has Pin 1 = A, Pin 2 = Y; NC7SZ17 has Pin 1 = A, Pin 2 = Y, no OE pin. Substitution requires PCB redesign.
NC7SZ125FHX-L22175 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 7SZ
- Package/Case:
- 6-UFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 32mA, 32mA
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-UDFN (1x1)
NC7SZ125FHX-L22175 FAQ
1.How can I place an order for NC7SZ125FHX-L22175 through Aetrix?
Please submit a Request for Quotation (RFQ) for NC7SZ125FHX-L22175 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 NC7SZ125FHX-L22175 reliable?
The price and inventory of NC7SZ125FHX-L22175 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NC7SZ125FHX-L22175 is usually 5 days.
3.What payment methods are accepted for NC7SZ125FHX-L22175?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NC7SZ125FHX-L22175 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NC7SZ125FHX-L22175?
NC7SZ125FHX-L22175 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NC7SZ125FHX-L22175 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 NC7SZ125FHX-L22175?
For technical support, including NC7SZ125FHX-L22175 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NC7SZ125FHX-L22175 requirements.
6.How does Aetrix verify that NC7SZ125FHX-L22175 is sourced from the original manufacturer or authorized distributors?
All NC7SZ125FHX-L22175 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 NC7SZ125FHX-L22175 meets industry standards.
7.What is the process for return or replacement of NC7SZ125FHX-L22175?
All NC7SZ125FHX-L22175 units undergo pre-shipment inspection (PSI). If there is an issue with NC7SZ125FHX-L22175, 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 NC7SZ125FHX-L22175 part is unused and in its original packaging.
Return procedure for NC7SZ125FHX-L22175:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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