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HomeProductsIntegrated Circuits (ICs)Logic - Flip FlopsNB4L52MNG
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NB4L52MNG - onsemi

Manufacturer Part Number
NB4L52MNG
Manufacturer
onsemi
Allelco Part Number
32D-NB4L52MNG
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
4,238 pcs available, New & Original
Parts Description
IC FF D-TYPE SNGL 1BIT 16QFN
Package
16-QFN (3x3)
Data sheet
NB4L52MNG.pdf

Datasheets

NB4L52.pdf

HTML Datasheet

NB4L52.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 4238
  • Unit Price: $14.696
  • Subtotal: $0.00

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Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $14.696 $14.70
10+ $14.109 $141.09
30+ $13.094 $392.82
100+ $12.208 $1,220.80
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

NB4L52MNG Tech Specifications
onsemi - NB4L52MNG technical specifications, attributes, parameters and parts with similar specifications to onsemi - NB4L52MNG

Product Attribute Attribute Value
Manufacturer onsemi
Voltage - Supply 2.375V ~ 5.5V
Type D-Type
Trigger Type Negative Edge
Supplier Device Package 16-QFN (3x3)
Series -
Package / Case 16-VFQFN Exposed Pad
Package Tube
Output Type Complementary
Operating Temperature -40°C ~ 85°C (TA)
Product Attribute Attribute Value
Number of Elements 1
Number of Bits per Element 1
Mounting Type Surface Mount
Max Propagation Delay @ V, Max CL 500ps @ 5.5V, -
Function Reset
Current - Quiescent (Iq) 25 mA
Current - Output High, Low -
Clock Frequency 4 GHz
Base Product Number NB4L52

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

NB4L52MNG Image
NB4L52MNG (1)

Manufacturer Part Number

NB4L52MNG

Manufacturer

onsemi

Introduction

The NB4L52MNG is a high-speed D-type flip-flop with reset function, designed for logic flip flop applications, offering high clock frequencies up to 4 GHz.

Product Features and Performance

Functions with a negative edge trigger

Provides complementary output types

Features a high clock frequency up to 4 GHz

Supports a wide voltage supply range from 2.375V to 5.5V

Offers a maximum propagation delay of 500ps at 5.5V

Product Advantages

High-speed performance suitable for advanced applications

Flexible power supply range catering to various design needs

Minimal propagation delay ensures swift response times

Surface mount package allows for efficient PCB design

NB4L52MNG Image
NB4L52MNG (2)

Key Technical Parameters

Clock Frequency: 4 GHz

Max Propagation Delay @ V, Max CL: 500ps @ 5.5V

Voltage Supply: 2.375V ~ 5.5V

Current Quiescent (Iq): 25 mA

Operating Temperature: -40°C ~ 85°C (TA)

Quality and Safety Features

Manufactured by onsemi, a reputable company known for high-quality semiconductor components

Operates reliably within a wide range of temperatures (-40°C ~ 85°C)

Compatibility

Available in a 16-QFN (3x3) package, compatible with surface mount technology for easy integration into various designs

Application Areas

High-speed communication systems

Digital signal processing

Clock/data distribution systems

High-performance computing

Product Lifecycle

Currently marked as active, indicating ongoing production and availability

No reported discontinuation, ensuring long-term availability and support

Several Key Reasons to Choose This Product

Offers exceptional high-speed clock frequencies up to 4 GHz, facilitating high-performance computing and signal processing

The wide operating voltage range provides flexibility in power supply design

Minimal propagation delay enhances system performance through faster response times

Surface mount design simplifies PCB layout and manufacturing process

Supported by onsemi's reputation for quality and reliability in semiconductor manufacturing

Frequently Asked Questions(FAQ)

What is the propagation delay of the NB4L52MNG at 5.5V and 100fF load, and how does this impact high-speed digital system timing margins?
The NB4L52MNG exhibits a maximum propagation delay of 500ps at 5.5V supply voltage when driving a 100fF capacitive load. This delay directly affects setup and hold time budgets in high-speed synchronous designs. For example, in a 2.5GHz system clocked at 400MHz with a 2.5ns period, a 500ps flip-flop delay reduces available timing margin by approximately 20%, necessitating careful PCB trace length matching and driver selection to maintain signal integrity.
How does the NB4L52MNG’s 2.375V to 5.5V operating voltage range influence compatibility with mixed-voltage systems compared to single-supply alternatives?
The NB4L52MNG supports a wide 2.375V to 5.5V supply range, enabling seamless integration into mixed-voltage environments such as 3.3V FPGA interfaces with 5V legacy peripherals or battery-powered devices transitioning between voltage rails. This flexibility contrasts with tightly regulated single-supply ICs that may require level shifters or redundant power domains, simplifying board layout and reducing component count in heterogeneous systems.
Can the NB4L52MNG be used in low-power applications, given its 25mA quiescent current specification?
While the NB4L52MNG draws 25mA under typical conditions, this current is consistent with high-performance logic families optimized for speed rather than ultra-low power. In continuous operation at 85°C, total power dissipation reaches approximately 112mW at 5V supply. For battery-operated designs prioritizing energy efficiency, alternative devices with sub-milliamp Iq are preferable; however, the NB4L52MNG may still find use in short-burst applications where bandwidth outweighs power concerns.
Why would an engineer choose the NB4L52MNG over a standard LVCMOS D-flip-flop for a 4GHz interface application?
The NB4L52MNG targets very high-speed signaling with a guaranteed 4GHz clock frequency, surpassing most commercial LVCMOS flip-flops limited to 1–2GHz. Its negative-edge triggering and complementary outputs enable efficient data capture in DDR-style protocols without additional inversion stages. At 500ps propagation delay, it maintains tighter synchronization than slower alternatives, making it suitable for serializer/deserializer (SerDes) front-end conditioning or clock-data recovery circuits.
What are the thermal implications of using the NB4L52MNG in compact handheld devices operating near 85°C ambient temperature?
Operating the NB4L52MNG at 85°C with 25mA supply current results in junction temperatures exceeding 90°C due to package thermal resistance (θJA). In densely populated handheld designs, inadequate airflow or poor grounding can push thermal headroom below specification limits. Engineers must verify local PCB copper area, avoid adjacent heat sources, and consider derating strategies if reliability margins are critical.
How does the NB4L52MNG’s moisture sensitivity level (MSL) of 1 affect storage and handling during production assembly?
With an MSL rating of 1, the NB4L52MNG is not susceptible to moisture-induced failures during reflow soldering and can be stored indefinitely in original packaging under dry conditions. This simplifies inventory management and reduces baking requirements before assembly, unlike Class 2 or higher components that demand humidity-controlled environments or pre-drying protocols.
Is the NB4L52MNG suitable for automotive-grade reliability requirements, or is it limited to industrial/commercial use?
The NB4L52MNG operates across -40°C to 85°C, which aligns with industrial temperature grades but falls short of AEC-Q100 automotive qualification. While it may function reliably in non-critical automotive subsystems, it lacks failure-mode analysis, accelerated life testing, and functional safety documentation required for production vehicle deployment. Use in safety-relevant circuits demands additional validation beyond datasheet parameters.
How should PCB routing be managed around the NB4L52MNG to minimize skew and ensure reliable operation at 4GHz edge rates?
Given the 4GHz clock capability and 500ps propagation delay, differential pair routing and matched trace lengths within ±50ps are essential to prevent inter-symbol interference. The 16-QFN exposed pad requires careful thermal relief design to avoid solder voids while maintaining ground plane continuity beneath the IC. Keep clock inputs short (<10mm), use termination resistors close to source endpoints, and avoid crossing split planes or reference discontinuities.
Does the NB4L52MNG support asynchronous reset functionality, and how does this compare to synchronous-only alternatives in system initialization sequences?
Yes, the NB4L52MNG includes an active-high asynchronous reset input that forces the output low immediately upon assertion, regardless of clock state. This enables deterministic startup behavior in power-up sequences, unlike purely synchronous resets that require at least one clock cycle to take effect. In boot-critical systems, this feature reduces initialization latency and avoids metastable states during reset deassertion.
What is the significance of the NB4L52MNG’s RoHS3 compliance and REACH unaffected status for global market distribution?
RoHS3 compliance ensures the NB4L52MNG meets EU directives restricting hazardous substances like lead, cadmium, and mercury, facilitating entry into European markets. The REACH unaffected declaration indicates absence of SVHCs (Substances of Very High Concern) above regulatory thresholds, simplifying export paperwork and reducing supply chain risk. These certifications are mandatory for public procurement and large OEM sourcing policies worldwide.
How does the NB4L52MNG’s package footprint (16-VFQFN, 3x3mm) compare to SOIC counterparts in space-constrained designs?
The NB4L52MNG occupies only 9mm² in a 3x3mm QFN package, offering over six times the density of a comparable 16-pin SOIC (typically 60mm²). Its exposed pad provides excellent thermal conduction and electrical grounding, eliminating the need for external heatsinks in most applications. However, reflow soldering requires precise stencil printing and inspection to avoid tombstoning—a trade-off absent in through-hole SOIC packages.
Can multiple NB4L52MNG units be cascaded without significant skew degradation in multi-stage pipeline architectures?
Cascading NB4L52MNG flip-flops introduces cumulative propagation delays (e.g., two stages yield ~1ns total). At 4GHz operation, this represents 40% of a clock period, increasing susceptibility to jitter and setup violations. To mitigate, insert buffer chains with controlled slew rates and monitor inter-stage timing budgets. Alternatively, consider parallel architectures with wider buses to reduce dependency on deep pipelines.
What ECCN classification (EAR99) implies about export restrictions for the NB4L52MNG, and how might this affect international sourcing decisions?
The ECCN of EAR99 means the NB4L52MNG is subject to U.S. Commerce Control List Category 5 Part 2 controls but not restricted under stricter regimes like encryption or missile technology. It can generally be exported worldwide with minimal documentation, simplifying logistics for global teams. However, end-use verification remains the buyer’s responsibility per Wassenaar Arrangement guidelines.
How does the NB4L52MNG handle input voltage levels outside its specified VCC range, particularly in noisy environments with transient spikes?
The NB4L52MNG features robust ESD protection and latch-up immunity per JEDEC standards, but absolute maximum ratings cap inputs at VCC + 0.5V and GND - 0.3V. Transient voltages beyond these limits risk irreversible damage. Designers should employ series resistors (22Ω typical), TVS diodes, or Schmitt-trigger buffers when interfacing with unregulated lines to clamp excursions within safe operating areas.
Why might an engineer select the NB4L52MNG instead of a CML (Current-Mode Logic) equivalent despite similar speeds?
While both CML and the NB4L52MNG achieve multi-gigabit performance, the NB4L52MNG offers lower power per function block and simpler DC compatibility with CMOS systems. Unlike CML’s differential pairs requiring termination networks, the NB4L52MNG’s single-ended CMOS inputs integrate cleanly into standard PCB stacks without impedance control challenges—ideal for backplane or point-to-point links where simplicity trims cost and complexity.
What role does the base product number NB4L52 play in derivative selection and long-term availability planning?
The NB4L52 base family includes variants like NB4L52AMNG (LVDS output) and NB4L52CMNG (CML-compatible), allowing designers to reuse PCB layouts across protocol layers. Choosing the NB4L52MNG ensures future migration paths while benefiting from onsemi’s mature manufacturing process. Long-term supply contracts often hinge on base part stability, making NB4L52 a strategic anchor for multi-generational platform development.

Parts with Similar Specifications

The three parts on the right have similar specifications to onsemi NB4L52MNG

Product Attribute NB4L52MNG NB4L6254MNR4G NB4L16MMNR2G NB4L6254MNG
Part Number NB4L52MNG NB4L6254MNR4G NB4L16MMNR2G NB4L6254MNG
Manufacturer onsemi onsemi onsemi onsemi
Clock Frequency 4 GHz - - -
Voltage - Supply 2.375V ~ 5.5V 2.375V ~ 3.465V - 2.375V ~ 3.465V
Package / Case 16-VFQFN Exposed Pad 32-VFQFN Exposed Pad 16-VFQFN Exposed Pad 32-VFQFN Exposed Pad
Max Propagation Delay @ V, Max CL 500ps @ 5.5V, - - - -
Trigger Type Negative Edge - - -
Series - - - -
Current - Output High, Low - - - -
Output Type Complementary - Differential -
Package Tube Tape & Reel (TR) Tape & Reel (TR) Tube
Base Product Number NB4L52 NB4L625 NB4L16 NB4L625
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Number of Bits per Element 1 - - -
Current - Quiescent (Iq) 25 mA - - -
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C -40°C ~ 85°C (TA) -40°C ~ 85°C
Number of Elements 1 - - -
Function Reset - - -
Supplier Device Package 16-QFN (3x3) 32-QFN (5x5) 16-QFN (3x3) 32-QFN (5x5)
Type D-Type Fanout Buffer (Distribution), Multiplexer - Fanout Buffer (Distribution), Multiplexer

NB4L52MNG Datasheet PDF

Download NB4L52MNG pdf datasheets and onsemi documentation for NB4L52MNG - onsemi.

Datasheets
NB4L52.pdf
Environmental Information
Material Declaration NB4L52MNG.pdf onsemi REACH.pdf onsemi RoHS.pdf
HTML Datasheet
NB4L52.pdf

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    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

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NB4L52MNG Image

NB4L52MNG

onsemi
32D-NB4L52MNG

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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