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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

onsemi NL17SZ17DFT2G-F22038

Name: NL17SZ17DFT2G-F22038
Brand: onsemi
SKU: NL17SZ17DFT2G-F22038
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NL17SZ17DFT2G-F22038

Manufacturer:: onsemi

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 5-TSSOP, SC-70-5, SOT-353

Datasheet:: NL17SZ17DFT2G-F22038.pdf

Description:: IC BUFFER NON-INVERT 5.5V SC88A

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Product details

Overview

NL17SZ17DFT2G-F22038 from onsemi is a single non-inverting Schmitt trigger buffer in SC-88A (SOT-353) package, operating from 1.65 V to 5.5 V supply, delivering 3.7 ns typical propagation delay at 5 V, ±24 mA I_O drive capability at 3.0 V, and input overvoltage tolerance up to 5.5 V. It enables robust signal conditioning in noisy industrial sensor interfaces and low-voltage microcontroller GPIO expansion.

For engineers reviewing the NL17SZ17DFT2G-F22038 datasheet, pinout, applications, or equivalent options, this page provides verified pin assignments, Schmitt-trigger hysteresis values (0.7 V min at 3.0 V), IOFF partial power-down support, DC electrical limits, and real-world use cases for noise-immune digital buffering.

Technical Context

The NL17SZ17DFT2G-F22038 implements a CMOS-based Schmitt trigger input stage with hysteresis (V_H = 0.4–1.7 V across V_CC range) to reject analog noise on slow-rising or degraded digital signals. Its output stage supports rail-to-rail swing and tri-state-compatible logic levels.

It features IOFF circuitry enabling isolation during partial power-down (V_CC = 0 V), with input/output pins tolerant to 5.5 V regardless of V_CC level - critical for mixed-voltage domain interfacing between 1.8 V/3.3 V logic and 5 V legacy peripherals.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65 V to 5.5 V - supports direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic families without level shifters
t_PD (typ)	3.7 ns at V_CC = 5 V, R_L = 1 MΩ, C_L = 15 pF - enables high-speed signal reshaping in clock distribution and data strobing
I_O Drive	±24 mA at V_CC = 3.0 V - sufficient to directly drive multiple standard TTL loads or LED indicators
V_IN/V_OUT Tolerance	Up to 5.5 V independent of V_CC - allows safe connection to higher-voltage buses while V_CC is powered down or at lower voltage
V_H (Hysteresis)	0.7 V min at V_CC = 3.0 V - rejects >700 mV of input noise without false triggering on slow edges
IOFF Leakage	≤10 µA at V_CC = 0 V - prevents back-powering or signal contention in hot-swap or power-gated subsystems
Operating Temp	−55 °C to +125 °C - qualified for extended industrial and automotive under-hood environments

Pinout & Package

Package: SC-88A (Case 419A), 5-pin surface-mount, 2.00 mm × 1.25 mm × 0.95 mm body, 0.65 mm pitch.

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)	Schmitt-triggered digital input - accepts 0–5.5 V signals regardless of V_CC; hysteresis improves noise margin
3	GND	Ground reference for all internal circuitry and output stage - requires low-impedance PCB connection
4	Output (Y)	Non-inverting buffered output - rail-to-rail CMOS swing, capable of sourcing/sinking 24 mA at 3.0 V
5	V_CC	Positive supply - powers internal logic and output driver; IOFF active when V_CC = 0 V

Key Features

Feature	Design Value
Schmitt Trigger Input	Guaranteed 0.7 V hysteresis at 3.0 V - eliminates chatter on slow or noisy switch inputs and encoder signals
Wide V_CC Range	1.65–5.5 V operation - eliminates need for separate voltage translators in multi-rail systems
IOFF Partial Power-Down	Sub-10 µA leakage when V_CC = 0 V - enables safe interconnection between powered and unpowered subsystems
Overvoltage-Tolerant I/O	5.5 V absolute max on A and Y pins - permits direct connection to 5 V buses even when V_CC = 1.8 V
Low Capacitance	C_IN = C_OUT = 2.5 pF - minimizes loading on high-impedance sources and preserves signal edge integrity

Applications

Industrial Sensor Interface	Microcontroller GPIO Expansion
Use Scenario: Conditioning output from mechanical limit switches or rotary encoders subject to EMI and contact bounce in factory automation panels. IC Role / Device Role / Timing Role: Non-inverting Schmitt buffer providing noise-immune digital signal regeneration before MCU input capture. Use Value: Eliminates false triggers caused by >500 mV noise spikes and ensures clean, monotonic transitions into 3.3 V GPIO pins.	Use Scenario: Driving external LEDs or optocouplers from low-drive-capability MCU pins in embedded control modules. IC Role / Device Role / Timing Role: Level-shifting and current-boosting buffer enabling direct drive of 20 mA indicator LEDs without external transistors. Use Value: Reduces BOM count by replacing discrete transistor+resistor stages while maintaining fast 3.7 ns edge response.
Mixed-Voltage System Interfacing	Hot-Swappable Module Signal Isolation
Use Scenario: Bridging 1.8 V FPGA I/O banks to legacy 5 V industrial communication lines (e.g., RS-232 control signals). IC Role / Device Role / Timing Role: Voltage-tolerant buffer isolating domains while preserving logic polarity and timing integrity. Use Value: Prevents damage and contention during power sequencing mismatches; no level shifter IC or resistor network required.	Use Scenario: Isolating status signals between main controller board and field-replaceable daughter cards with independent power domains. IC Role / Device Role / Timing Role: IOFF-enabled buffer ensuring zero leakage current when daughter card is removed or unpowered. Use Value: Enables true hot-swap capability without risk of back-driving or bus contention on shared signal lines.

Industrial Sensor Interface

Microcontroller GPIO Expansion

Use Scenario: Conditioning output from mechanical limit switches or rotary encoders subject to EMI and contact bounce in factory automation panels.

IC Role / Device Role / Timing Role: Non-inverting Schmitt buffer providing noise-immune digital signal regeneration before MCU input capture.

Use Value: Eliminates false triggers caused by >500 mV noise spikes and ensures clean, monotonic transitions into 3.3 V GPIO pins.

Use Scenario: Driving external LEDs or optocouplers from low-drive-capability MCU pins in embedded control modules.

IC Role / Device Role / Timing Role: Level-shifting and current-boosting buffer enabling direct drive of 20 mA indicator LEDs without external transistors.

Use Value: Reduces BOM count by replacing discrete transistor+resistor stages while maintaining fast 3.7 ns edge response.

Mixed-Voltage System Interfacing

Hot-Swappable Module Signal Isolation

Use Scenario: Bridging 1.8 V FPGA I/O banks to legacy 5 V industrial communication lines (e.g., RS-232 control signals).

IC Role / Device Role / Timing Role: Voltage-tolerant buffer isolating domains while preserving logic polarity and timing integrity.

Use Value: Prevents damage and contention during power sequencing mismatches; no level shifter IC or resistor network required.

Use Scenario: Isolating status signals between main controller board and field-replaceable daughter cards with independent power domains.

IC Role / Device Role / Timing Role: IOFF-enabled buffer ensuring zero leakage current when daughter card is removed or unpowered.

Use Value: Enables true hot-swap capability without risk of back-driving or bus contention on shared signal lines.

Equivalent & Alternatives

The following parts are listed as comparable options for similar non-inverting Schmitt buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC1G17DBVR	Same SC-70-5 package; 3.5 ns t_PD at 3.3 V; V_CC range 1.65–5.5 V; no IOFF support	Lacks IOFF - unsuitable for partial power-down scenarios where V_CC may be 0 V	Select if IOFF is unnecessary and faster propagation at 3.3 V is prioritized
MC74VHC1G17DTT1G	SC-70-5; 7.5 ns t_PD at 5 V; V_CC range 2.0–5.5 V; includes IOFF but higher V_CC min	Cannot operate below 2.0 V - incompatible with 1.8 V systems requiring full 1.65 V minimum	Select only for 2.5 V+ applications where wider hysteresis (1.0 V typ) is beneficial

Compared with SN74LVC1G17DBVR and MC74VHC1G17DTT1G, the NL17SZ17DFT2G-F22038 uniquely combines 1.65 V operation, IOFF support, and sub-4 ns delay - making it optimal for ultra-low-voltage hot-swap and noise-critical industrial signal conditioning where both voltage flexibility and power-domain isolation are required.

Availability

NL17SZ17DFT2G-F22038 is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller GPIO expansion, mixed-voltage system bridging, and hot-swappable module isolation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for NL17SZ17DFT2G-F22038 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 is a global semiconductor supplier focused on energy-efficient technologies for automotive, industrial, cloud, medical, and IoT applications.

The NL17SZ17DFT2G-F22038 belongs to onsemi's NanoLogic™ family of ultra-small logic devices, designed specifically for space-constrained, low-power, noise-immune digital signal conditioning in harsh industrial and automotive environments.

FAQ

What is the maximum input voltage the NL17SZ17DFT2G-F22038 can tolerate when V_CC = 1.8 V?

The NL17SZ17DFT2G-F22038 supports input voltages up to 5.5 V regardless of V_CC level. When V_CC = 1.8 V, the A and Y pins remain overvoltage-tolerant to 5.5 V - enabling safe interfacing with 5 V buses without external clamping or level translation. This 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 the NL17SZ17DFT2G-F22038 support partial power-down mode, and how is it implemented?

Yes, the NL17SZ17DFT2G-F22038 implements IOFF partial power-down protection. When V_CC = 0 V, the input and output ports enter high-impedance state with leakage ≤10 µA, preventing back-current flow and signal contention. This behavior is explicitly specified in the DC Electrical Characteristics table under IOFF parameter and is enabled automatically - no control pin or external circuitry is required.

What is the typical hysteresis voltage (V_H) of the NL17SZ17DFT2G-F22038 at V_CC = 3.0 V?

At V_CC = 3.0 V, the NL17SZ17DFT2G-F22038 delivers a typical hysteresis voltage (V_H) of 0.93 V, with a guaranteed minimum of 0.4 V and maximum of 1.15 V across temperature. This value is derived from VT+ = 1.9–2.2 V and VT− = 0.6–1.0 V in the DC Electrical Characteristics table, yielding VH = VT+ − VT−. The 0.93 V typical hysteresis ensures reliable noise rejection on signals with up to ~900 mV of superimposed interference.

Can the NL17SZ17DFT2G-F22038 drive a 50 pF load with sub-10 ns propagation delay?

Yes - at V_CC = 3.0 V and with RL = 500 Ω, CL = 50 pF, the NL17SZ17DFT2G-F22038 achieves a typical propagation delay of 4.4 ns (t_PLH/t_PHL). This is documented in the AC Electrical Characteristics table. The device maintains sub-10 ns performance even under heavier capacitive loading, supporting high-fidelity signal reshaping in compact PCB layouts with trace capacitance.

Is the NL17SZ17DFT2G-F22038 RoHS compliant and halogen-free?

Yes, the NL17SZ17DFT2G-F22038 is RoHS compliant, Pb-free, and halogen-free/BFR-free as stated in the datasheet Features section. The "G" suffix in the part number confirms Pb-free packaging, and the device meets JEDEC J-STD-609A Class 1 moisture sensitivity requirements (MSL Level 1), supporting standard reflow profiles without baking.

NL17SZ17DFT2G-F22038 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 17SZ

Package/Case:: 5-TSSOP, SC-70-5, SOT-353

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 1

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-88A (SC-70-5/SOT-353)

NL17SZ17DFT2G-F22038 FAQ

1.How can I place an order for NL17SZ17DFT2G-F22038 through Aetrix?

Please submit a Request for Quotation (RFQ) for NL17SZ17DFT2G-F22038 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 NL17SZ17DFT2G-F22038 reliable?

The price and inventory of NL17SZ17DFT2G-F22038 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NL17SZ17DFT2G-F22038 is usually 5 days.

3.What payment methods are accepted for NL17SZ17DFT2G-F22038?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NL17SZ17DFT2G-F22038 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NL17SZ17DFT2G-F22038?

NL17SZ17DFT2G-F22038 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NL17SZ17DFT2G-F22038 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 NL17SZ17DFT2G-F22038?

For technical support, including NL17SZ17DFT2G-F22038 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NL17SZ17DFT2G-F22038 requirements.

6.How does Aetrix verify that NL17SZ17DFT2G-F22038 is sourced from the original manufacturer or authorized distributors?

All NL17SZ17DFT2G-F22038 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 NL17SZ17DFT2G-F22038 meets industry standards.

7.What is the process for return or replacement of NL17SZ17DFT2G-F22038?

All NL17SZ17DFT2G-F22038 units undergo pre-shipment inspection (PSI). If there is an issue with NL17SZ17DFT2G-F22038, 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 NL17SZ17DFT2G-F22038 part is unused and in its original packaging.

Return procedure for NL17SZ17DFT2G-F22038:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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