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onsemi NC7SP125L6X
- Part No.:
- NC7SP125L6X
- Manufacturer:
- onsemi
- Package:
- 6-UFDFN
- Datasheet:
-
NC7SP125L6X.pdf
- Description:
- IC BUF NON-INVERT 3.6V 6MICROPAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
NC7SP125L6X from onsemi is a single non-inverting 3-state buffer IC designed for ultra-low-power logic interfacing in space-constrained applications. It operates across 0.9 V to 3.6 V supply, delivers 3.0 ns typical propagation delay at 3.3 V, supports input/output over-voltage tolerance up to 3.6 V, and features IOFF partial power-down protection - enabling use in mixed-voltage I²C bus buffering and portable sensor interface circuits.
For engineers reviewing the NC7SP125L6X datasheet, pinout, applications, or equivalent options, key selection criteria include its MicroPak package footprint (1.45 mm × 1.0 mm), tri-state enable timing (6.9 ns typ enable time at 3.3 V), rail-to-rail input compatibility, and guaranteed operation down to −40°C for industrial-grade embedded control nodes.
Technical Context
The NC7SP125L6X implements a single-channel non-inverting buffer with active-low 3-state output control (OE). Its logic function is defined by a truth table where OE = L enables Y = A, and OE = H forces Y into high-impedance state - supporting bidirectional bus isolation and dynamic load management.
It uses onsemi's Ultra-Low-Power (ULP-A) CMOS process optimized for sub-1-V operation. The device includes integrated input hysteresis suppression, IOFF circuitry that disables current paths when VCC = 0 V, and ESD protection rated at 4 kV HBM - making it suitable for hot-swap-capable peripheral interfaces and battery-backed subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.9 V to 3.6 V - enables direct interfacing between 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| tPLH/tPHL (Typ) | 3.0 ns at VCC = 3.3 V, CL = 10 pF - supports >100 MHz data rates in low-skew signal routing paths. |
| IOFF Leakage | ≤0.5 µA at VCC = 0 V - prevents back-driving of powered-down rails during partial system shutdown. |
| VIH/VIL Thresholds | VIL ≤ 0.35×VCC, VIH ≥ 0.65×VCC - ensures robust noise margin across full supply range with no external biasing. |
| Output Drive | ±2.6 mA at VCC = 3.3 V - sufficient to drive 10 pF loads with <10% overshoot and <1 ns rise/fall times. |
| Input Capacitance | 2.0 pF - minimizes capacitive loading on upstream drivers, critical in high-speed clock distribution or sensor multiplexing. |
| ESD Rating | 4000 V HBM - meets IEC 61000-4-2 Level 3 requirements for handheld and industrial edge-node PCBs. |
Pinout & Package
NC7SP125L6X is packaged in MicroPak (Case 127EB), a 6-pin leadless package measuring 1.45 mm × 1.0 mm with 0.5 mm pitch and bottom-side thermal pad. Pin 1 is marked with a laser-etched "L5" code and located at the top-left corner (Q4 orientation) per tape-and-reel specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Output Enable (active-low) | Asserting low enables buffer output; high places Y in high-impedance - used for bus arbitration or power-gated signal routing. |
| 2 (A) | Non-inverting Data Input | Accepts logic signals from 0 V to 3.6 V regardless of VCC - supports mixed-supply domain bridging. |
| 3 (GND) | Ground Reference | Primary return path for all internal logic and output current; must be connected before VCC for safe power sequencing. |
| 4 (Y) | Buffered Output | Drives downstream loads with rail-to-rail swing; high-impedance state isolates bus segments during OE = H. |
| 5 (NC) | No Connect | Internally unconnected; left floating - no external connection required or recommended. |
| 6 (VCC) | Positive Supply | Supplies core logic and output stage; decoupling capacitor (100 nF) required within 2 mm for stable 3.3 V operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply voltage support | Operates down to 0.9 V - enables integration into energy-harvesting sensor nodes and coin-cell-powered wearables. |
| Over-voltage tolerant I/O | Inputs and outputs withstand 3.6 V even when VCC = 0.9 V - eliminates need for external clamping diodes in mixed-voltage systems. |
| IOFF partial power-down | Blocks current flow between A/Y and GND/VCC when VCC = 0 V - prevents back-powering of dormant subsystems. |
| MicroPak package footprint | 1.45 mm × 1.0 mm, 0.5 mm pitch - saves >60% board area vs. SC-88A; compatible with standard SMT reflow profiles. |
| Low dynamic power consumption | CPD = 8.0 pF - reduces switching power to <1 µW at 1 MHz with 1.8 V supply, extending battery life in always-on monitoring. |
Applications
| Industrial Sensor Interface | I²C Bus Buffering |
|---|---|
|
Use Scenario: Isolating analog sensor outputs from microcontroller ADC inputs in factory-floor vibration monitors operating at −40°C to +85°C. IC Role / Device Role / Timing Role: Non-inverting buffer with tri-state control manages signal integrity while enabling dynamic sensor channel selection via OE. Use Value: 3.0 ns propagation delay preserves timing margins in 100 kHz sampling loops; IOFF prevents sensor bias leakage during MCU sleep modes. |
Use Scenario: Extending I²C bus length between host MCU and remote temperature/humidity sensors in HVAC control panels. IC Role / Device Role / Timing Role: Bidirectional bus repeater using OE-controlled 3-state outputs to segment and isolate bus segments. Use Value: Over-voltage tolerant I/O allows direct connection to 3.3 V sensors while powered from 1.8 V MCU rail - eliminating level translators. |
| Portable Medical Wearables | Low-Power IoT Edge Node |
|
Use Scenario: Signal conditioning between photodiode front-end and ultra-low-power ARM Cortex-M0+ in pulse oximetry patches. IC Role / Device Role / Timing Role: Power-gated buffer isolates analog signal path during measurement idle cycles using OE control. Use Value: 0.9 V operation matches coin-cell discharge curve; 2.0 pF input capacitance avoids loading high-impedance transimpedance amplifier outputs. |
Use Scenario: Interfacing LoRaWAN transceiver GPIOs with environmental sensor arrays in battery-operated smart agriculture nodes. IC Role / Device Role / Timing Role: Voltage-level translator and bus driver enabling 1.8 V sensor logic to communicate with 3.3 V radio peripherals. Use Value: 4 kV HBM ESD rating protects against field handling damage; MicroPak footprint conserves PCB real estate in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NC7SZ125P5X | SC-88A package (2.1 mm × 1.25 mm); 3.5 ns tPD at 3.3 V; same ULP-A process and IOFF feature. | Larger footprint limits use in ultra-dense layouts; identical electrical specs allow drop-in replacement where board space permits. | Select NC7SZ125P5X only if MicroPak assembly capability is unavailable or legacy SC-88A tooling is in place. |
| SN74LVC1G125DBVR | TSSOP-5 package (2.9 mm × 1.6 mm); 3.5 ns tPD at 3.3 V; no IOFF; VCC min = 1.65 V. | Cannot operate below 1.65 V or support partial power-down; requires external pull-ups for open-drain compatibility. | Choose SN74LVC1G125DBVR only for cost-sensitive, non-battery applications where 1.65–5.5 V operation suffices and IOFF is unnecessary. |
Compared with NC7SP125L6X, NC7SZ125P5X offers identical functionality in a larger package, while SN74LVC1G125DBVR trades ultra-low-voltage support and IOFF for broader voltage range and higher drive strength - making NC7SP125L6X the sole choice for sub-1-V, power-gated, or space-constrained designs.
Availability
NC7SP125L6X is available at Aetrix Electronics and suitable for industrial sensor interface, portable medical wearables, low-power IoT edge node, and I²C bus buffering applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for NC7SP125L6X 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, and intelligent devices.
The NC7SP125L6X belongs to the TinyLogic ULP-A family - engineered specifically for ultra-low-power, small-footprint logic interfacing in battery-constrained and thermally sensitive embedded systems.
FAQ
What is the minimum operating voltage for NC7SP125L6X?
The NC7SP125L6X guarantees functional operation down to 0.9 V VCC, with full DC and AC specifications validated across the 0.9 V to 3.6 V range. At 0.9 V, propagation delay increases to 65 ns (typ), but logic thresholds remain valid, enabling use in deep-discharge battery scenarios where other logic families fail.
Does NC7SP125L6X support hot-swap or partial power-down operation?
Yes, NC7SP125L6X includes IOFF circuitry that actively disables input and output current paths when VCC = 0 V. This prevents back-current flow into powered-down sections of the system - a critical feature for hot-pluggable modules and multi-rail power architectures where subsystems power up/down asynchronously.
What is the pin 1 marking and orientation for NC7SP125L6X in tape-and-reel packaging?
NC7SP125L6X uses MicroPak packaging with Q4 pin 1 orientation: the "L5" marking is located at the top-left corner of the package body when viewed from above with the tape feed direction pointing away from the observer. This matches JEDEC-standard tape-and-reel placement for automated pick-and-place.
Can NC7SP125L6X interface between 1.8 V and 3.3 V logic domains without external components?
Yes, NC7SP125L6X supports this directly: its inputs tolerate up to 3.6 V regardless of VCC, and its outputs swing rail-to-rail. When powered from 1.8 V, it accepts 3.3 V inputs safely and drives 1.8 V-compatible loads - eliminating level shifters in mixed-voltage I/O expansion applications.
Is NC7SP125L6X RoHS compliant and halogen-free?
Yes, NC7SP125L6X is Pb-free, halogen-free/BFR-free, and fully RoHS compliant per EU Directive 2011/65/EU. The MicroPak package uses matte tin terminations and meets IPC/JEDEC J-STD-020 moisture sensitivity level 1 - allowing unlimited floor life under standard storage conditions.
NC7SP125L6X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 7SP
- 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:
- 2.6mA, 2.6mA
- Voltage - Supply:
- 0.9V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-MicroPak
NC7SP125L6X FAQ
1.How can I place an order for NC7SP125L6X through Aetrix?
Please submit a Request for Quotation (RFQ) for NC7SP125L6X 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 NC7SP125L6X reliable?
The price and inventory of NC7SP125L6X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NC7SP125L6X is usually 5 days.
3.What payment methods are accepted for NC7SP125L6X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NC7SP125L6X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NC7SP125L6X?
NC7SP125L6X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NC7SP125L6X 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 NC7SP125L6X?
For technical support, including NC7SP125L6X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NC7SP125L6X requirements.
6.How does Aetrix verify that NC7SP125L6X is sourced from the original manufacturer or authorized distributors?
All NC7SP125L6X 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 NC7SP125L6X meets industry standards.
7.What is the process for return or replacement of NC7SP125L6X?
All NC7SP125L6X units undergo pre-shipment inspection (PSI). If there is an issue with NC7SP125L6X, 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 NC7SP125L6X part is unused and in its original packaging.
Return procedure for NC7SP125L6X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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