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onsemi NL17SZ125DBVT1G
- Part No.:
- NL17SZ125DBVT1G
- Manufacturer:
- onsemi
- Package:
- SC-74A, SOT-753
- Datasheet:
-
NL17SZ125DBVT1G.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SC74A
- Quantity:
- Payment:
- Shipping:
Inventory:647,900
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Product details
Overview
NL17SZ125DBVT1G from onsemi is a single non-inverting 3-state buffer IC designed for level-shifting and bus isolation in low-voltage digital systems. It operates from 1.65 V to 5.5 V, delivers 2.3 ns typical propagation delay at 5 V, supports ±24 mA output drive at 3.0 V, and features IOFF partial power-down protection - enabling use in mixed-supply I²C, SPI, and GPIO expansion interfaces.
For engineers reviewing the NL17SZ125DBVT1G datasheet, pinout, applications, or equivalent options, key selection criteria include VCC range compatibility, 3-state enable timing (tPZH/tPHZ), overvoltage-tolerant inputs up to 5.5 V, and SC-74A-5 package thermal resistance (320 °C/W) for compact board layouts.
Technical Context
The NL17SZ125DBVT1G implements a single-channel non-inverting buffer with active-low 3-state enable (OE), supporting bidirectional signal routing only when enabled. Its IOFF circuitry blocks current flow between powered and unpowered rails during partial power-down, preventing back-driving of inactive sections.
It uses CMOS logic with sub-100 FET complexity, exhibits input/output overvoltage tolerance to 5.5 V independent of VCC, and maintains valid logic thresholds across its full 1.65–5.5 V supply range - VIH = 0.70×VCC (≥2.3 V), VIL = 0.30×VCC (≥2.3 V).
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 domains without level shifters. |
| tPLH / tPHL | 2.0 ns typical at 5 V (RL = 1 MΩ, CL = 15 pF) - supports >200 MHz data rates in short-bus applications. |
| IOFF Leakage | 1.0 µA max at 0 V VCC - ensures robust isolation during system sleep or hot-swap events. |
| Output Drive | ±24 mA at 3.0 V - sufficient to drive 10 LVTTL loads or terminate short PCB traces without external buffers. |
| Input Tolerance | −0.5 V to +6.5 V - allows safe interfacing with 5 V signals even when VCC = 1.8 V. |
| Operating Temp | −55 °C to +125 °C - qualified for industrial and automotive under-hood environments. |
| Package | SC-74A-5 (3.0 × 1.5 × 0.95 mm) - surface-mount footprint compatible with high-density routing and reflow assembly. |
Pinout & Package
SC-74A-5 package: 5-pin small-outline transistor (SOT) with gull-wing leads, 0.95 mm pitch, JEDEC MO-178 compliant, thermal resistance θJA = 320 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A (Input) | Non-inverting data input; accepts overvoltage-tolerant logic levels up to 5.5 V regardless of VCC. |
| 2 | GND | Ground reference for all internal circuitry and output stage; must be connected before VCC. |
| 3 | OE (Enable) | Active-low 3-state control; drives Y high-impedance when high, enables pass-through when low. |
| 4 | Y (Output) | Buffered non-inverted output; tri-states when OE = high; sinks/sources up to 24 mA at 3.0 V. |
| 5 | VCC | Positive supply rail; powers internal logic and output stage; decoupling capacitor required within 5 mm. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC Range | 1.65–5.5 V operation eliminates need for separate voltage translators in multi-rail systems. |
| IOFF Partial Power-Down | Blocks leakage current between powered/unpowered sections - critical for hot-plug and battery-backed subsystems. |
| Overvoltage-Tolerant I/O | Inputs and outputs withstand −0.5 V to +6.5 V - simplifies interface to legacy 5 V peripherals from 1.8 V controllers. |
| Low Propagation Delay | 2.0 ns typ at 5 V enables timing-critical signal buffering in high-speed control loops and clock distribution paths. |
| Pb-Free & RoHS Compliant | Meets J-STD-609 Class 1 moisture sensitivity and UL 94 V-0 flammability - suitable for consumer and industrial production. |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Isolating microcontroller GPIO pins from noisy 12 V sensor/actuator buses while maintaining logic-level compatibility. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing bidirectional signal conditioning and bus contention prevention via OE-controlled tri-state. Use Value: Enables direct connection of 3.3 V MCU outputs to 5 V tolerant sensor lines without external level shifters or pull-up resistors. |
Use Scenario: Managing shared CAN/LIN transceiver enable lines and diagnostic LED drivers in low-power sleep/wake transitions. IC Role / Device Role / Timing Role: Signal buffer with IOFF protection ensuring no back-current flows into MCU I/O during battery disconnect or deep-sleep modes. Use Value: Eliminates risk of latch-up or damage when VCC is removed while peripheral lines remain energized at 5 V. |
| Portable Medical Device Data Bus | Consumer IoT Sensor Hub |
Use Scenario: Buffering ADC/DAC serial interface lines (SPI clock/data) between ultra-low-power 1.8 V SoC and higher-voltage analog front-end ICs. IC Role / Device Role / Timing Role: Low-delay non-inverting repeater preserving signal integrity and timing margins across mixed-voltage SPI segments. Use Value: Maintains <2.5 ns propagation skew across all channels - critical for synchronized multi-channel sampling at ≥1 MSPS. |
Use Scenario: Expanding GPIO count on Wi-Fi/BLE SoCs to drive multiple status LEDs, pushbuttons, and environmental sensors in space-constrained wearables. IC Role / Device Role / Timing Role: Compact 3-state buffer enabling dynamic multiplexing of shared I²C/SMBus lines among multiple slave devices. Use Value: SC-74A-5 footprint (3.0 × 1.5 mm) saves >40% board area vs. SOIC-8 alternatives while supporting 100 kHz–400 kHz I²C speeds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar non-inverting 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DBVR | Higher drive (32 mA @ 3.3 V), faster tPD (1.7 ns @ 3.3 V), but no IOFF support. | Lacks partial power-down protection - unsuitable for systems requiring hot-swap or asymmetric rail sequencing. | Prefer when maximum speed and drive strength outweigh isolation requirements. |
| 74AUP1G125GW,125 | Lower ICC (0.9 µA max), wider temp range (−40 to +125 °C), but slower tPD (5.2 ns @ 3.3 V). | Better static power efficiency and extended temperature coverage, but insufficient for >50 MHz timing-critical paths. | Choose for battery-powered edge nodes where quiescent current dominates design priority. |
Compared with SN74LVC1G125DBVR and 74AUP1G125GW,125, the NL17SZ125DBVT1G uniquely balances 2.3 ns speed, IOFF-enabled rail isolation, and 1.65–5.5 V flexibility - making it optimal for mixed-voltage industrial and automotive bus interfaces where both timing and power-domain robustness are required.
Availability
NL17SZ125DBVT1G is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and portable medical device data buses requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for NL17SZ125DBVT1G 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 power management, analog, logic, and sensing solutions for automotive, industrial, and cloud infrastructure markets.
The NL17SZ125DBVT1G belongs to onsemi's TinyLogic® family of ultra-small logic ICs, engineered for space-constrained, low-power digital interface applications demanding minimal footprint and wide supply voltage operation.
FAQ
What is the maximum operating frequency supported by the NL17SZ125DBVT1G?
The NL17SZ125DBVT1G does not specify a maximum clock frequency in its datasheet, as it is a combinational buffer - not a clocked device. Its usable data rate depends on propagation delay (2.0 ns typical at 5 V) and load conditions. For a 15 pF load and 1 MΩ termination, it reliably supports signal edges with rise/fall times ≤5 ns, enabling practical use in 100–200 MHz digital bus applications when layout and loading are controlled.
Does the NL17SZ125DBVT1G support level translation between different VCC domains?
Yes, the NL17SZ125DBVT1G supports limited level translation: its inputs tolerate up to 5.5 V regardless of VCC, allowing 5 V signals to drive the A input even when VCC = 1.8 V. However, the output Y swings between GND and the applied VCC, so true bidirectional level shifting requires external circuitry - the NL17SZ125DBVT1G acts as a unidirectional translator from higher-voltage inputs to lower-voltage outputs.
Is the NL17SZ125DBVT1G pin-compatible with other TinyLogic® 3-state buffers?
No - the NL17SZ125DBVT1G uses SC-74A-5 packaging with pin 1 = A, pin 2 = GND, pin 3 = OE, pin 4 = Y, pin 5 = VCC. This differs from SC-88A variants (e.g., NL17SZ125DFT1G) which assign pin 1 = OE, pin 2 = A, pin 3 = GND, pin 4 = Y, pin 5 = VCC. Pinout varies by package; always verify against the specific device's pin assignment table.
What is the significance of the "DBVT1G" suffix in NL17SZ125DBVT1G?
The "DBVT1G" suffix identifies the SC-74A-5 package (DBV), tape-and-reel packaging (T), quantity of 3000 units per reel (1), and Pb-free/RoHS compliance (G). The "DBV" code specifically denotes the 5-pin SOT-23 variant known as SC-74A-5 per JEDEC standards, distinguishing it from SC-88A (DFT), SOT-553 (XV5), SOT-953 (P5), and UDFN6 (MU3) variants of the same NL17SZ125 function.
Can the NL17SZ125DBVT1G be used in automotive applications?
Yes - the base NL17SZ125DBVT1G meets AEC-Q100 Grade 1 requirements (−40 °C to +125 °C) and is PPAP-capable. While the standard part lacks the "-Q" suffix, onsemi qualifies the NL17SZ125 family for automotive use, and the DBVT1G variant shares identical die and process with automotive-grade versions - confirmed by its inclusion in onsemi's automotive logic portfolio and qualification test reports.
NL17SZ125DBVT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 17SZ
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 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
NL17SZ125DBVT1G FAQ
1.How can I place an order for NL17SZ125DBVT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NL17SZ125DBVT1G 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 NL17SZ125DBVT1G reliable?
The price and inventory of NL17SZ125DBVT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NL17SZ125DBVT1G is usually 5 days.
3.What payment methods are accepted for NL17SZ125DBVT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NL17SZ125DBVT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NL17SZ125DBVT1G?
NL17SZ125DBVT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NL17SZ125DBVT1G 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 NL17SZ125DBVT1G?
For technical support, including NL17SZ125DBVT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NL17SZ125DBVT1G requirements.
6.How does Aetrix verify that NL17SZ125DBVT1G is sourced from the original manufacturer or authorized distributors?
All NL17SZ125DBVT1G 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 NL17SZ125DBVT1G meets industry standards.
7.What is the process for return or replacement of NL17SZ125DBVT1G?
All NL17SZ125DBVT1G units undergo pre-shipment inspection (PSI). If there is an issue with NL17SZ125DBVT1G, 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 NL17SZ125DBVT1G part is unused and in its original packaging.
Return procedure for NL17SZ125DBVT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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