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onsemi NL27WZ17DBVT1G
- Part No.:
- NL27WZ17DBVT1G
- Manufacturer:
- onsemi
- Package:
- SC-74, SOT-457
- Datasheet:
-
NL27WZ17DBVT1G.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SC74
- Quantity:
- Payment:
- Shipping:
Inventory:1,349
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Product details
Overview
NL27WZ17DBVT1G from onsemi is a dual non-inverting Schmitt-trigger buffer IC designed for noise-immune signal conditioning in mixed-voltage digital systems. It operates from 1.65 V to 5.5 V, delivers 3.7 ns typical propagation delay at 5 V, sinks up to 32 mA output current, and features overvoltage-tolerant inputs/outputs up to 5.5 V. It is used in level-shifting interfaces between legacy 3.3 V/5 V logic and low-voltage microcontrollers.
For engineers reviewing the NL27WZ17DBVT1G datasheet, pinout, applications, or equivalent options, key selection criteria include supply voltage flexibility (1.65–5.5 V), Schmitt-trigger hysteresis (0.7 V min at 3.0 V), IOFF partial power-down support, SC-74 package footprint compatibility, and AEC-Q100 qualification for automotive subsystems.
Technical Context
The NL27WZ17DBVT1G integrates two independent non-inverting buffers, each with Schmitt-trigger input thresholds (VT+ = 1.9 V, VT− = 0.6 V at VCC = 3.0 V) enabling robust noise rejection on slow or noisy signals. Its IOFF circuitry isolates inputs and outputs when VCC = 0 V, preventing back-powering in partial-power-down modes.
It supports rail-to-rail input operation up to 5.5 V regardless of VCC, and maintains guaranteed VOH ≥ VCC − 0.1 V and VOL ≤ 0.4 V under 32 mA sink load at 4.5 V - critical for driving TTL-compatible loads and interfacing across voltage domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 5.5 V - enables direct interface between 1.8 V, 2.5 V, 3.3 V, and 5 V logic families without level shifters. |
| Propagation Delay (tPD) | 3.7 ns typ at VCC = 5 V, RL = 1 MΩ, CL = 15 pF - ensures timing-critical signal buffering in high-speed control paths. |
| Input Hysteresis (VH) | 0.9 V min at VCC = 3.0 V - rejects noise spikes up to ±450 mV on input lines, stabilizing debounced switch or sensor inputs. |
| Output Drive Strength | Sinks 32 mA at VCC = 4.5 V - directly drives multiple standard TTL loads or LED indicators without external drivers. |
| IOFF Leakage Current | ≤10 µA max at VCC = 0 V - prevents current backflow during system sleep states, preserving battery life in portable devices. |
| ESD Withstand Voltage | 2000 V HBM - meets industrial I/O robustness requirements without additional protection circuitry. |
| Operating Temperature | −55 °C to +125 °C - qualified for under-hood automotive, industrial motor control, and outdoor embedded applications. |
Pinout & Package
Package: SC-74 (Case 318F-05), 6-pin surface-mount package measuring 2.0 mm × 1.25 mm × 0.9 mm, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A2 (Input) | Second Schmitt-trigger input; accepts DC voltages up to 5.5 V independent of VCC. |
| 2 | A1 (Input) | First Schmitt-trigger input; electrically identical to Pin 1, fully independent channel. |
| 3 | GND | Ground reference for both buffers and internal bias networks; must be connected before VCC. |
| 4 | VCC | Positive supply rail; powers internal logic and defines output swing; supports 1.65–5.5 V operation. |
| 5 | Y2 (Output) | Inverted-phase output of A2; non-inverting relationship with A2; capable of 32 mA sink current. |
| 6 | Y1 (Output) | Inverted-phase output of A1; non-inverting relationship with A1; matches Y2 in drive strength and timing. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (1.65–5.5 V) | Eliminates need for separate voltage translators when interfacing mixed-supply logic blocks. |
| Overvoltage-tolerant I/O (up to 5.5 V) | Allows safe connection to 5 V buses while operating from 1.8 V or 2.5 V supplies - no clamping diodes required. |
| IOFF partial power-down protection | Prevents signal leakage and bus contention when VCC is off, essential for hot-swap and low-power sleep modes. |
| Low input capacitance (2.5 pF) | Minimizes loading on high-impedance sources such as crystal oscillators or sensor outputs. |
| AEC-Q100 qualified (Grade 1) | Validated for automotive applications including body control modules, infotainment interfaces, and ADAS sensor preprocessing. |
Applications
| Industrial Sensor Interface | Automotive Body Control |
|---|---|
|
Use Scenario: Conditioning noisy analog switch or rotary encoder signals in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Dual Schmitt-trigger buffer cleans slow-rising mechanical contact bounce and EMI-induced transients before MCU GPIO sampling. Use Value: Eliminates need for external RC debounce networks and firmware debouncing routines, reducing BOM count and interrupt latency. |
Use Scenario: Level-shifting door lock actuator feedback signals between 5 V legacy sensors and 3.3 V body controller MCU. IC Role / Device Role / Timing Role: Non-inverting buffer translates 5 V open-collector status lines into clean 3.3 V CMOS-compatible inputs with hysteresis. Use Value: Ensures reliable detection of mechanical switch transitions despite cable-induced ringing and ground offset. |
| Portable Medical Device | Consumer IoT Hub |
|
Use Scenario: Isolating and conditioning push-button inputs in battery-powered glucose meters with ultra-low standby current. IC Role / Device Role / Timing Role: Schmitt-trigger input accepts wide-voltage tactile switch closures; IOFF blocks reverse current when main supply is off. Use Value: Enables true zero-current shutdown mode - extends coin-cell battery life beyond 2 years in intermittent-use devices. |
Use Scenario: Driving multiple RGB LED indicators from a single 1.8 V microcontroller GPIO bank in smart home hubs. IC Role / Device Role / Timing Role: Dual buffer provides sufficient sink current (32 mA per channel) to drive LEDs directly without discrete transistors. Use Value: Reduces PCB area and component count versus discrete FET solutions while maintaining fast turn-on/turn-off response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schmitt-trigger buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G17DBVR | Lower hysteresis (0.2 V typ at 3.3 V), no IOFF, 32 mA drive only at VCC ≥ 4.5 V. | Not suitable for partial-power-down systems or noisy industrial environments requiring >0.5 V noise margin. | Select when cost is primary and system always powers all rails simultaneously; verify noise immunity in final layout. |
| 74LVC2G17GW,125 | Same hysteresis spec, but only rated to 125 °C ambient (not 125 °C junction); no AEC-Q100 qualification. | Lacks automotive qualification and extended temperature validation - unsuitable for under-hood use. | Acceptable for commercial-grade consumer or industrial control where AEC-Q100 and −55 °C start-up are not required. |
Compared with SN74LVC2G17DBVR and 74LVC2G17GW,125, the NL27WZ17DBVT1G uniquely combines AEC-Q100 Grade 1 qualification, −55 °C to +125 °C operation, IOFF protection, and 0.9 V minimum hysteresis - making it the only option qualified for automotive body electronics and harsh-environment industrial control.
Availability
NL27WZ17DBVT1G is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, and portable medical device interfaces requiring stable component supply across long production lifecycles.
Supply support for NL27WZ17DBVT1G 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 specializing in energy-efficient silicon solutions for automotive, industrial, cloud, and IoT applications.
The NL27WZ17DBVT1G belongs to onsemi's high-speed logic family, engineered specifically for robust signal integrity in mixed-voltage, noise-prone environments - targeting automotive subsystems, industrial controls, and portable electronics needing reliable edge detection and level translation.
FAQ
What is the maximum input voltage allowed on NL27WZ17DBVT1G pins when VCC = 1.8 V?
The NL27WZ17DBVT1G supports overvoltage-tolerant inputs up to 5.5 V regardless of VCC level. When VCC = 1.8 V, VIN may safely reach 5.5 V - enabling direct connection to 5 V buses without external clamping. This capability is confirmed in the Absolute Maximum Ratings table (VIN = −0.5 V to +6.5 V) and Recommended Operating Conditions (VIN = 0 to 5.5 V).
Does NL27WZ17DBVT1G support true tri-state outputs?
No, the NL27WZ17DBVT1G does not feature tri-state outputs. It is a dual non-inverting buffer with fixed high/low output states. However, its IOFF functionality provides partial power-down isolation: when VCC = 0 V, both inputs and outputs enter a high-impedance state with leakage ≤10 µA, preventing back-driving of powered sections of the system.
What is the minimum hysteresis voltage of NL27WZ17DBVT1G at VCC = 3.3 V?
At VCC = 3.3 V, the NL27WZ17DBVT1G guarantees a minimum input hysteresis voltage (VH) of 0.9 V, calculated as VT+ − VT−. Per the DC Electrical Characteristics table, VT+ = 2.2 V (min) and VT− = 1.3 V (max) at VCC = 3.0 V - extrapolating conservatively yields VH ≥ 0.9 V at 3.3 V, ensuring strong noise immunity for slow-switching signals.
Is NL27WZ17DBVT1G pin-compatible with other SC-74 dual buffer packages?
Yes, the NL27WZ17DBVT1G uses the standard SC-74 (Case 318F-05) 6-pin footprint with Pin 1 (A2) at top-left, Pin 3 (GND) bottom-left, Pin 4 (VCC) bottom-right, and Pin 6 (Y1) top-right - matching JEDEC MO-178AB. This allows drop-in replacement with other SC-74 dual buffers like SN74LVC2G17DBVR, provided functional requirements (hysteresis, IOFF, temp range) are verified.
What thermal performance can be expected from NL27WZ17DBVT1G in a typical 2-layer FR4 PCB layout?
In a standard 2-layer FR4 board with minimum pad spacing and no airflow (per JESD51-7), the NL27WZ17DBVT1G in SC-74 package has a junction-to-ambient thermal resistance (θJA) of 320 °C/W. At 5.5 V and full 32 mA output load per channel, total power dissipation remains below 100 mW - resulting in <32 °C junction rise above ambient, well within the +125 °C max TJ rating.
NL27WZ17DBVT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 27WZ
- Package/Case:
- SC-74, SOT-457
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Input Type:
- Schmitt Trigger
- 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-74
NL27WZ17DBVT1G FAQ
1.How can I place an order for NL27WZ17DBVT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NL27WZ17DBVT1G 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 NL27WZ17DBVT1G reliable?
The price and inventory of NL27WZ17DBVT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NL27WZ17DBVT1G is usually 5 days.
3.What payment methods are accepted for NL27WZ17DBVT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NL27WZ17DBVT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NL27WZ17DBVT1G?
NL27WZ17DBVT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NL27WZ17DBVT1G 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 NL27WZ17DBVT1G?
For technical support, including NL27WZ17DBVT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NL27WZ17DBVT1G requirements.
6.How does Aetrix verify that NL27WZ17DBVT1G is sourced from the original manufacturer or authorized distributors?
All NL27WZ17DBVT1G 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 NL27WZ17DBVT1G meets industry standards.
7.What is the process for return or replacement of NL27WZ17DBVT1G?
All NL27WZ17DBVT1G units undergo pre-shipment inspection (PSI). If there is an issue with NL27WZ17DBVT1G, 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 NL27WZ17DBVT1G part is unused and in its original packaging.
Return procedure for NL27WZ17DBVT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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