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onsemi NL17SZ16DBVT1G
- Part No.:
- NL17SZ16DBVT1G
- Manufacturer:
- onsemi
- Package:
- SC-74A, SOT-753
- Datasheet:
-
NL17SZ16DBVT1G.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SC74A
- Quantity:
- Payment:
- Shipping:
Inventory:4,528
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Product details
Overview
NL17SZ16DBVT1G from onsemi is a single-channel CMOS buffer IC designed for level-shifting and signal conditioning in low-voltage digital systems. It operates from 1.65 V to 5.5 V, delivers 2.4 ns typical propagation delay at 5 V, supports 24 mA output drive at 3.0 V, and features overvoltage-tolerant inputs/outputs up to 5.5 V - enabling robust interfacing between mixed-supply logic domains in portable instrumentation and industrial control I/O modules.
For engineers reviewing the NL17SZ16DBVT1G datasheet, pinout, applications, or equivalent options, key selection criteria include its SC-74A-5 (SOT-23-5) package footprint, IOFF partial power-down capability, input/output voltage tolerance beyond VCC, and guaranteed operation across −55 °C to +125 °C industrial temperature range.
Technical Context
The NL17SZ16DBVT1G implements a non-inverting buffer with true CMOS input structure and push-pull output stage. Its IOFF feature disables current flow when VCC = 0 V, preventing back-powering of powered-down subsystems - critical in hot-swap and multi-rail power sequencing applications.
It supports rail-to-rail input voltage range (0 V to 5.5 V) independent of VCC, and maintains valid logic levels across 1.65–5.5 V supply, making it suitable for bridging 1.8 V, 2.5 V, 3.3 V, and 5 V logic families without external level translators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - enables interoperability across 1.8 V, 2.5 V, 3.3 V, and 5 V logic families without level shifters. |
| tPD (Typ) | 2.4 ns at VCC = 5 V, CL = 15 pF - supports >200 MHz signal buffering in high-speed digital interfaces. |
| IOH/IOL | ±24 mA at VCC = 3.0 V - drives multiple standard CMOS loads or small capacitive traces without external buffers. |
| Input Tolerance | −0.5 V to +6.5 V - accepts 5 V signals even when powered from 1.8 V, eliminating need for external clamping diodes. |
| IOFF Leakage | ≤10 µA at VCC = 0 V - prevents back-current into unpowered rails during partial system shutdown. |
| Operating Temp | −55 °C to +125 °C - qualified for under-hood automotive, industrial PLC, and outdoor telecom equipment. |
| ESD Rating | HBM ±2000 V - withstands handling and board-level ESD events without protection circuitry overhead. |
Pinout & Package
Package: SC-74A-5 (SOT-23-5), 3.00 mm × 1.50 mm × 0.95 mm body, 0.95 mm pitch, RoHS-compliant Pb-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Internally unconnected; must be left floating or tied to GND per layout best practice - no electrical function. |
| 2 | Input (A) | CMOS-compatible digital input; accepts 0–5.5 V regardless of VCC value - enables mixed-voltage signal routing. |
| 3 | GND | Ground reference for both input threshold and output swing; must be low-impedance connection to minimize noise coupling. |
| 4 | Output (Y) | Push-pull CMOS output; actively drives high/low with rail-to-rail swing and 24 mA sink/source capability at 3 V. |
| 5 | VCC | Positive supply pin; powers internal logic and output stage; IOFF behavior activates when VCC = 0 V. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC Range | 1.65 V to 5.5 V operation - eliminates separate voltage regulators for logic interface circuits in multi-rail systems. |
| Overvoltage-Tolerant I/O | Inputs and outputs withstand −0.5 V to +6.5 V - allows safe interfacing with legacy 5 V peripherals while powered from 1.8 V. |
| IOFF Partial Power-Down | Blocks current flow when VCC = 0 V - prevents back-powering of inactive subsystems in modular or hot-pluggable designs. |
| Low Propagation Delay | 2.4 ns typical tPD at 5 V - preserves timing margins in high-frequency clock distribution or data path buffering. |
| Small Footprint | SC-74A-5 package (3.0 × 1.5 mm) - saves PCB area in space-constrained portable and IoT edge nodes. |
Applications
| Industrial Sensor Interface | Portable Medical Device I/O |
|---|---|
|
Use Scenario: Isolating and conditioning analog-to-digital converter (ADC) control signals in a battery-powered pressure sensor module operating at 1.8 V, while interfacing with a 3.3 V microcontroller. IC Role / Device Role / Timing Role: Non-inverting buffer providing voltage-level translation and drive strength enhancement between mismatched logic rails. Use Value: Eliminates need for discrete level-shifter ICs or resistor-divider networks, reducing BOM count and layout complexity. |
Use Scenario: Driving LED status indicators and push-button inputs in a handheld ECG monitor with dual 1.8 V (sensor front-end) and 3.3 V (display processor) supply domains. IC Role / Device Role / Timing Role: Signal integrity buffer ensuring clean, fast edge transitions across supply boundaries without timing skew. Use Value: Maintains <2.5 ns propagation delay and 24 mA drive at 3 V, enabling responsive user feedback and reliable button debouncing. |
| Automotive Body Control Module | Industrial PLC Digital I/O Expansion |
|
Use Scenario: Buffering wake-up signals from CAN transceiver interrupt lines to a low-power 1.8 V microcontroller in an under-hood junction box. IC Role / Device Role / Timing Role: Robust input buffer with overvoltage tolerance and −55 °C to +125 °C operation for harsh environment signal conditioning. Use Value: Withstands 5 V wake pulses while powered from 1.8 V, and survives thermal cycling without derating. |
Use Scenario: Interfacing 24 V field-side digital inputs to a 3.3 V FPGA-based logic controller via optocoupler output stages requiring clean CMOS-level signals. IC Role / Device Role / Timing Role: Final-stage buffer isolating FPGA I/O pins from potential noise or leakage on opto-output lines. Use Value: IOFF functionality prevents back-current into FPGA when field power is removed but controller remains active. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G17DBVR | Has Schmitt-trigger input (hysteresis); lacks IOFF; same SC-70-5 package. | Better noise immunity on slow/slew-limited inputs; unsuitable for partial power-down scenarios. | Select when input signals exhibit slow edges or high noise; avoid where VCC sequencing requires IOFF. |
| 74LVC1G07GW,125 | Open-drain output; requires external pull-up; no IOFF; same SOT-353 package. | Enables wired-OR logic and mixed-voltage pull-up configurations; cannot source current. | Select for bus arbitration or multi-master I²C-like signaling; avoid when active-high push-pull drive is required. |
Compared with SN74LVC1G17DBVR and 74LVC1G07GW,125, the NL17SZ16DBVT1G uniquely combines push-pull drive, IOFF, and overvoltage-tolerant I/O in a single SC-74A-5 package - making it optimal for mixed-rail systems requiring fail-safe power sequencing and robust signal integrity.
Availability
NL17SZ16DBVT1G is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical device I/O, automotive body control modules, and PLC digital I/O expansion requiring stable component supply and long-term lifecycle support.
Supply support for NL17SZ16DBVT1G 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 NL17SZ16DBVT1G belongs to onsemi's TinyLogic® family of ultra-small-footprint logic ICs, engineered specifically for space-constrained, low-power, mixed-voltage digital interface applications in portable and harsh-environment electronics.
FAQ
What is the maximum input voltage the NL17SZ16DBVT1G can tolerate when powered from 1.8 V?
The NL17SZ16DBVT1G supports input voltages from −0.5 V to +6.5 V regardless of VCC level. When powered from 1.8 V, it safely accepts 5 V logic signals without damage or clamping - a key advantage for interfacing legacy peripherals in low-voltage systems. This overvoltage tolerance is explicitly specified in the Absolute Maximum Ratings table of the official onsemi datasheet.
Does the NL17SZ16DBVT1G support partial power-down, and how does it behave when VCC = 0 V?
Yes, the NL17SZ16DBVT1G features IOFF (power-off isolation), which disables current flow through the device when VCC = 0 V. In this state, input and output terminals present ≤10 µA leakage current, preventing back-powering of unpowered rails. This behavior is confirmed in the DC Electrical Characteristics table under the IOFF parameter and is essential for hot-swap and modular power architecture designs.
What is the propagation delay of the NL17SZ16DBVT1G at 3.3 V supply and 15 pF load?
At VCC = 3.3 V and CL = 15 pF, the NL17SZ16DBVT1G exhibits a typical propagation delay (tPLH/tPHL) of 2.1 ns, with a maximum of 4.7 ns across −55 °C to +125 °C. This value is directly extracted from the AC Electrical Characteristics table in the onsemi datasheet (Rev. 17, page 5) and reflects guaranteed performance under industrial temperature conditions.
Which package does the NL17SZ16DBVT1G use, and what are its key mechanical dimensions?
The NL17SZ16DBVT1G uses the SC-74A-5 package (also known as SOT-23-5), with mechanical dimensions of 3.00 mm × 1.50 mm × 0.95 mm and 0.95 mm lead pitch. This information is documented in the Device Ordering Information table (page 7) and Mechanical Case Outline drawing (page 8) of the official onsemi datasheet.
Is the NL17SZ16DBVT1G RoHS-compliant and halogen-free?
Yes, the NL17SZ16DBVT1G is RoHS-compliant, Pb-free, and halogen-free/BFR-free, as explicitly stated in the Features section of the onsemi datasheet. The "G" suffix in the part number denotes Pb-free packaging, and full compliance documentation is available in onsemi's material declarations and environmental reports.
NL17SZ16DBVT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 17SZ
- Package/Case:
- SC-74A, SOT-753
- 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:
- Push-Pull
- Current - Output High, Low:
- 32mA, 32mA
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-74A
NL17SZ16DBVT1G FAQ
1.How can I place an order for NL17SZ16DBVT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NL17SZ16DBVT1G 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 NL17SZ16DBVT1G reliable?
The price and inventory of NL17SZ16DBVT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NL17SZ16DBVT1G is usually 5 days.
3.What payment methods are accepted for NL17SZ16DBVT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NL17SZ16DBVT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NL17SZ16DBVT1G?
NL17SZ16DBVT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NL17SZ16DBVT1G 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 NL17SZ16DBVT1G?
For technical support, including NL17SZ16DBVT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NL17SZ16DBVT1G requirements.
6.How does Aetrix verify that NL17SZ16DBVT1G is sourced from the original manufacturer or authorized distributors?
All NL17SZ16DBVT1G 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 NL17SZ16DBVT1G meets industry standards.
7.What is the process for return or replacement of NL17SZ16DBVT1G?
All NL17SZ16DBVT1G units undergo pre-shipment inspection (PSI). If there is an issue with NL17SZ16DBVT1G, 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 NL17SZ16DBVT1G part is unused and in its original packaging.
Return procedure for NL17SZ16DBVT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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