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onsemi NC7SV126L6X
- Part No.:
- NC7SV126L6X
- Manufacturer:
- onsemi
- Package:
- 6-UFDFN
- Datasheet:
-
NC7SV126L6X.pdf
- Description:
- IC BUF NON-INVERT 3.6V 6MICROPAK
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
NC7SV126L6X from onsemi is a single-channel ultra-low-power (ULP-A) logic buffer with three-state output, designed for voltage-level translation and bus isolation in space-constrained portable systems. It operates from 0.9 V to 3.6 V, delivers 1.8 ns typical propagation delay at 3.3 V, supports ±24 mA drive strength, and features over-voltage tolerant inputs/outputs up to 3.6 V - enabling interoperability across mixed-supply domains in wearables and IoT edge nodes.
For engineers reviewing the NC7SV126L6X datasheet, pinout, applications, or equivalent options, key selection criteria include its MicroPak™ package footprint (1.45 mm × 1.0 mm), IOFF partial power-down protection, sub-1V logic compatibility, and guaranteed tri-state leakage < ±0.5 µA over −40°C to +85°C.
Technical Context
The NC7SV126L6X implements a single non-inverting buffer with active-high enable (OE), where output Y follows input A when OE is high, and enters high-impedance state when OE is low. Its CMOS architecture supports rail-to-rail input thresholds (VIH = 0.65×VCC, VIL = 0.35×VCC) and maintains defined logic states down to 0.9 V supply.
It integrates IOFF circuitry that disables input/output paths when VCC = 0 V, preventing back-driving of powered rails during partial power-down sequences - critical for battery-backed subsystems and hot-swap interfaces. Input capacitance is 2.0 pF and output capacitance is 4.5 pF, minimizing signal integrity impact in high-speed digital routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.9 V to 3.6 V - enables direct interface with 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| tPD (Typ) | 1.8 ns at VCC = 3.3 V - supports >300 MHz data rates in short-path buffering applications. |
| IOFF Leakage | ≤ 0.5 µA at VCC = 0 V - prevents current flow between unpowered and powered sections during sleep mode. |
| Drive Strength | ±24 mA at VCC = 3.3 V - sufficient to drive 50 Ω transmission lines or fan-out to ≥10 standard CMOS loads. |
| Input Tolerance | Up to 3.6 V regardless of VCC - allows safe connection to higher-voltage control signals without external clamping. |
| Tri-State Leakage | ±0.5 µA over full temperature range - ensures minimal bus loading when disabled in multi-drop configurations. |
| Power Dissipation Cap | CPD = 20 pF - enables accurate dynamic power estimation: PD = 20×10⁻¹² × VCC² × f + ICC×VCC. |
Pinout & Package
NC7SV126L6X is packaged in MicroPak™ (Case 127EB), a 6-pin, leadless, near-chip-scale package measuring 1.45 mm × 1.0 mm × 0.5 mm with bottom-side thermal pad and solderable terminals. Pin 1 is marked by microdot or laser etch per JEDEC MO-252.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Output Enable | Active-high control: drives Y = A when high; places Y in high-Z when low - used for bus arbitration and power-gating control. |
| 2 (A) | Data Input | Non-inverting logic input with over-voltage tolerance up to 3.6 V - accepts signals independent of VCC level. |
| 3 (GND) | Ground Reference | Primary return path for all internal logic and I/O currents; must be low-inductance connected to system ground plane. |
| 4 (Y) | Buffered Output | Three-state output with ±24 mA sink/source capability; transitions within 2.9 ns (max) from OE assertion to valid logic level. |
| 5 (NC) | No Connect | Internally unconnected terminal - must remain floating or tied to GND per layout guidelines; not usable as thermal pad anchor. |
| 6 (VCC) | Supply Voltage | Single positive supply input (0.9–3.6 V); decoupling capacitor (100 nF) required within 2 mm of this pin for stable operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Operation | ICC ≤ 0.9 µA at VCC = 3.6 V - extends battery life in always-on sensor hubs and BLE peripherals. |
| IOFF Partial Power-Down | Blocks current flow when VCC = 0 V - eliminates back-powering risk in modular systems with staggered power sequencing. |
| Over-Voltage Tolerant I/O | Inputs and outputs withstand 3.6 V even at VCC = 0.9 V - simplifies interconnection with legacy 3.3 V controllers in mixed-voltage SoC designs. |
| MicroPak™ Package | 1.45 mm × 1.0 mm footprint with 0.5 mm height - fits beneath 0402 passives and enables < 1.5 mm² total board area per channel. |
| ESD Robustness | HBM 2000 V / CDM 1000 V - meets IEC 61000-4-2 Level 2 requirements for handheld and wearable end equipment. |
Applications
| Wearable Sensor Hub Interface | Low-Power MCU GPIO Expansion |
|---|---|
Use Scenario: Interfacing MEMS accelerometers (1.8 V I²C) to a 3.3 V host MCU while maintaining independent power domains. IC Role / Device Role / Timing Role: Level-translating buffer isolating sensor bus from MCU during deep-sleep cycles. Use Value: Enables zero-current leakage between domains via IOFF, preserving battery charge for >30 days in standby. | Use Scenario: Expanding GPIO count on an ARM Cortex-M0+ microcontroller with limited native pins and strict power budget. IC Role / Device Role / Timing Role: Tri-state buffer enabling time-multiplexed access to shared peripheral resources (e.g., SPI flash, display driver). Use Value: Delivers 1.8 ns propagation delay and 24 mA drive to maintain timing margins at 20 MHz SPI clock rates. |
| IoT Edge Node Battery Management | Portable Medical Diagnostic Module |
Use Scenario: Isolating fuel gauge IC (2.8 V) from battery charger controller (3.3 V) in a rechargeable Li-ion pack. IC Role / Device Role / Timing Role: Bidirectional bus buffer with OE-controlled directionality and over-voltage-safe signaling. Use Value: Prevents latch-up during charger insertion events by tolerating 3.6 V transients on A/Y pins at 0.9 V VCC. | Use Scenario: Routing analog front-end trigger signals from a 1.2 V ADC to a 3.3 V FPGA-based processing unit in a handheld ECG device. IC Role / Device Role / Timing Role: Single-shot pulse buffer ensuring clean, jitter-free edge delivery to FPGA capture logic. Use Value: Achieves < 300 ps pulse skew between channels and < 0.5 µA tri-state leakage - critical for sub-microsecond timing accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-channel three-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DBVR | Wider VCC range (1.65–5.5 V); higher ICC (10 µA typ); no IOFF support. | Lacks partial power-down protection; requires external isolation for VCC = 0 V scenarios. | Prefer when interfacing to 5 V logic or when higher drive (32 mA) is needed at 5 V, but avoid in battery-critical partial-power-down systems. |
| 74LVC1G17GW,125 | Schmitt-trigger input; same VCC (1.65–5.5 V); no IOFF; 5-pin SC-70 package. | Provides noise immunity on slow-rising signals but adds ~3 ns hysteresis delay; incompatible with precise timing paths. | Select only for noisy industrial environments where input signal slew is < 10 ns/V; unsuitable for high-speed clock/data forwarding. |
Compared with SN74LVC1G125DBVR and 74LVC1G17GW,125, the NC7SV126L6X uniquely supports sub-1V operation, IOFF-enabled zero-leakage shutdown, and a 6-pin MicroPak footprint - making it the only option for ultra-low-power, space-constrained, mixed-voltage buffering where power sequencing integrity is mandatory.
Availability
NC7SV126L6X is available at Aetrix Electronics and suitable for wearable electronics, IoT edge nodes, and portable medical devices requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for NC7SV126L6X 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The TinyLogic® ULP-A family - including NC7SV126L6X - was engineered specifically for ultra-low-voltage, ultra-low-power portable electronics where die size, static current, and package footprint directly impact battery life and form factor.
FAQ
What is the minimum operating voltage for NC7SV126L6X?
The NC7SV126L6X supports a minimum VCC of 0.9 V, verified across −40°C to +85°C per the Recommended Operating Conditions table. At this voltage, VIH is specified as 0.5 V (min), VIL as 0.5 V (max), and tPD remains within datasheet limits - enabling reliable operation in energy-harvesting and coin-cell-powered systems where supply droop occurs.
Does NC7SV126L6X support true bidirectional signal flow?
No, NC7SV126L6X is a unidirectional buffer: signal flows only from A to Y. Directionality is fixed; it does not auto-detect or reverse based on voltage or current. For bidirectional applications, two NC7SV126L6X devices with complementary OE control or a dedicated bus transceiver (e.g., NC7WZ245) are required.
Can NC7SV126L6X be used without a decoupling capacitor?
No - the NC7SV126L6X requires a 100 nF ceramic decoupling capacitor placed within 2 mm of the VCC pin (Pin 6) and GND (Pin 3). Omission causes supply rail instability, increased propagation delay variation (>±1 ns), and potential output oscillation under load, especially at VCC ≤ 1.2 V or f > 10 MHz.
Is NC7SV126L6X pin-compatible with NC7SV126P5X?
No - NC7SV126L6X uses MicroPak™ (6-pin), while NC7SV126P5X uses SC-88A (5-pin). Pin counts, layouts, and thermal pad structures differ fundamentally. The MicroPak variant adds Pin 5 (NC) and relocates VCC to Pin 6; PCB redesign is required for substitution.
What is the maximum capacitive load NC7SV126L6X can drive reliably?
The NC7SV126L6X is characterized up to 30 pF load capacitance (CL) in AC Electrical Characteristics. Driving >30 pF increases tPLH/tPHL nonlinearly - e.g., at CL = 50 pF and VCC = 3.3 V, delay exceeds 3.5 ns (vs. 2.6 ns typ at 30 pF). For heavier loads, add series termination or use a higher-drive buffer like NC7WZ17.
NC7SV126L6X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 7SV
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 0.9V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-MicroPak
NC7SV126L6X FAQ
1.How can I place an order for NC7SV126L6X through Aetrix?
Please submit a Request for Quotation (RFQ) for NC7SV126L6X 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 NC7SV126L6X reliable?
The price and inventory of NC7SV126L6X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NC7SV126L6X is usually 5 days.
3.What payment methods are accepted for NC7SV126L6X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NC7SV126L6X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NC7SV126L6X?
NC7SV126L6X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NC7SV126L6X 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 NC7SV126L6X?
For technical support, including NC7SV126L6X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NC7SV126L6X requirements.
6.How does Aetrix verify that NC7SV126L6X is sourced from the original manufacturer or authorized distributors?
All NC7SV126L6X 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 NC7SV126L6X meets industry standards.
7.What is the process for return or replacement of NC7SV126L6X?
All NC7SV126L6X units undergo pre-shipment inspection (PSI). If there is an issue with NC7SV126L6X, 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 NC7SV126L6X part is unused and in its original packaging.
Return procedure for NC7SV126L6X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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