KSZ8721BL Transceiver RMII 48-LQFP [FAQ]: Pinout, Datasheet, and KS8721BL vs KSZ8721B vs KSZ8721BL

UTMEL

Published: 08 March 2022 | Last Updated: 08 March 2022

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KSZ8721BL

KSZ8721BL

Microchip Technology

48 Pin KSZ8721 Receivers 1/1 Drivers/Receivers Min 3.3V V Max 3.3V V

Purchase Guide

48 Pin KSZ8721 Receivers 1/1 Drivers/Receivers Min 3.3V V Max 3.3V V

KSZ8721BL is a Physical Layer Transceiver that employs MII and RMII interfaces to send and receive data. This article is going to introduce pinout, features, and more details about KSZ8721BL.

Overview of KSZ8721BL

  • The KSZ8721BL  is a 10BASE-T  /100BASE-TX/FX Physical Layer Transceiver that employs MII  and RMII  interfaces to send and receive data. It has a 2.5V core to fulfill low-voltage and low-power requirements.

  • Physical Medium Attachment (PMA), Physical Medium Dependent (PMD), and Physical Coding Sub-layer  (PCS) functionalities are all included in 10BASE-T.

  • On-chip 10BASE-T  output filtering is also included in the KSZ8721BL. This eliminates the need for external filters and allows for the use of a single pair of line magnetics to suit both 100BASE-TX and 10BASE-T  standards.

  • Using an on-chip auto-negotiation algorithm, the KSZ8721BL  L automatically configures itself for 100 or 10Mbps and full-duplex or half-duplex operation.

  • For 100BASE-TX/10BASE-T applications, it is the optimal physical layer transceiver.


KSZ8721BL Features

  • Single-Chip 100BASE-TX/100BASE-FX/10BASE-T Physical Layer Solution

  • 2.5V CMOS Design; 2.5/3.3V Tolerance on I/O

  • 3.3V Single Power Supply with Built-In Voltage

  • Fully Compliant to IEEE  802.3u Standard

  • Supports MII  and Reduced MII  (RMII)

  • Commercial Temperature Range: 0°C to +70°C

  • Industrial Temperature Range: –40°C to +85°C

  • Available in 48-pin SSOP  and LQFP Packages

  • KSZ8721BL is a Drop-In Replacement for the theKSZ8721BT  in the Same Footprint


KSZ8721BL Interface

  • MDC

  • MDI

  • MDIO

  • MDI-X

  • MII

  • RMII


KSZ8721BL Pinout

KSZ8721BL Pinout.png

KSZ8721BL Pinout


KSZ8721BL Block Diagram

KSZ8721BL Block Diagram.jpg

KSZ8721BL Block Diagram


KSZ8721BL CAD Model

KSZ8721BL Footprint.jpg

KSZ8721BL Footprint

KSZ8721BL 3D Model.png

KSZ8721BL 3D Model

KSZ8721BL Circuit

KSZ8721BL Circuit.jpg

KSZ8721BL Circuit


Specifications

Microchip Technology KSZ8721BL technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology KSZ8721BL.
  • Type
    Parameter
  • Factory Lead Time
    17 Weeks
  • Mount

    In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.

    Surface Mount
  • Mounting Type

    The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.

    Surface Mount
  • Package / Case

    refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

    48-LQFP
  • Number of Pins
    48
  • Supplier Device Package

    The parameter "Supplier Device Package" in electronic components refers to the physical packaging or housing of the component as provided by the supplier. It specifies the form factor, dimensions, and layout of the component, which are crucial for compatibility and integration into electronic circuits and systems. The supplier device package information typically includes details such as the package type (e.g., DIP, SOP, QFN), number of pins, pitch, and overall size, allowing engineers and designers to select the appropriate component for their specific application requirements. Understanding the supplier device package is essential for proper component selection, placement, and soldering during the manufacturing process to ensure optimal performance and reliability of the electronic system.

    48-LQFP (7x7)
  • Number of I/Os
    8
  • Usage Level
    Automotive grade
  • Operating Temperature

    The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

    0°C~70°C
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Tray
  • Published
    2006
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Active
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    3 (168 Hours)
  • Termination

    Termination in electronic components refers to the practice of matching the impedance of a circuit to prevent signal reflections and ensure maximum power transfer. It involves the use of resistors or other components at the end of transmission lines or connections. Proper termination is crucial in high-frequency applications to maintain signal integrity and reduce noise.

    SMD/SMT
  • Type
    Transceiver
  • Max Operating Temperature

    The Maximum Operating Temperature is the maximum body temperature at which the thermistor is designed to operate for extended periods of time with acceptable stability of its electrical characteristics.

    70°C
  • Min Operating Temperature

    The "Min Operating Temperature" parameter in electronic components refers to the lowest temperature at which the component is designed to operate effectively and reliably. This parameter is crucial for ensuring the proper functioning and longevity of the component, as operating below this temperature may lead to performance issues or even damage. Manufacturers specify the minimum operating temperature to provide guidance to users on the environmental conditions in which the component can safely operate. It is important to adhere to this parameter to prevent malfunctions and ensure the overall reliability of the electronic system.

    0°C
  • Voltage - Supply

    Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.

    3V~3.6V
  • Base Part Number

    The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.

    KSZ8721
  • Number of Channels
    1
  • Interface

    In electronic components, the term "Interface" refers to the point at which two different systems, devices, or components connect and interact with each other. It can involve physical connections such as ports, connectors, or cables, as well as communication protocols and standards that facilitate the exchange of data or signals between the connected entities. The interface serves as a bridge that enables seamless communication and interoperability between different parts of a system or between different systems altogether. Designing a reliable and efficient interface is crucial in ensuring proper functionality and performance of electronic components and systems.

    Ethernet
  • Max Supply Voltage

    In general, the absolute maximum common-mode voltage is VEE-0.3V and VCC+0.3V, but for products without a protection element at the VCC side, voltages up to the absolute maximum rated supply voltage (i.e. VEE+36V) can be supplied, regardless of supply voltage.

    3.3V
  • Min Supply Voltage

    The minimum supply voltage (V min ) is explored for sequential logic circuits by statistically simulating the impact of within-die process variations and gate-dielectric soft breakdown on data retention and hold time.

    3.3V
  • Number of Ports

    A port is identified for each transport protocol and address combination by a 16-bit unsigned number,.

    1
  • Nominal Supply Current

    Nominal current is the same as the rated current. It is the current drawn by the motor while delivering rated mechanical output at its shaft.

    151mA
  • Max Supply Current

    Max Supply Current refers to the maximum amount of electrical current that a component can draw from its power supply under normal operating conditions. It is a critical parameter that ensures the component operates reliably without exceeding its thermal limits or damaging internal circuitry. Exceeding this current can lead to overheating, performance degradation, or failure of the component. Understanding this parameter is essential for designing circuits that provide adequate power while avoiding overload situations.

    151mA
  • Data Rate

    Data Rate is defined as the amount of data transmitted during a specified time period over a network. It is the speed at which data is transferred from one device to another or between a peripheral device and the computer. It is generally measured in Mega bits per second(Mbps) or Mega bytes per second(MBps).

    100 Mbps
  • Protocol

    In electronic components, the parameter "Protocol" refers to a set of rules and standards that govern the communication between devices. It defines the format, timing, sequencing, and error checking methods for data exchange between different components or systems. Protocols ensure that devices can understand and interpret data correctly, enabling them to communicate effectively with each other. Common examples of protocols in electronics include USB, Ethernet, SPI, I2C, and Bluetooth, each with its own specifications for data transmission. Understanding and adhering to protocols is essential for ensuring compatibility and reliable communication between electronic devices.

    MII, RMII
  • Number of Drivers/Receivers
    1/1
  • Duplex

    In the context of electronic components, "Duplex" refers to a type of communication system that allows for bidirectional data flow. It enables two devices to communicate with each other simultaneously, allowing for both sending and receiving of data at the same time. Duplex communication can be further categorized into two types: half-duplex, where data can be transmitted in both directions but not at the same time, and full-duplex, where data can be sent and received simultaneously. This parameter is crucial in networking and telecommunications systems to ensure efficient and effective data transmission between devices.

    Full
  • Number of Drivers
    1
  • Number of Transceivers
    1
  • Simplex/Duplex

    In electronic components, the parameter "Simplex/Duplex" refers to the type of communication or data transmission mode supported by the component. Simplex communication is a one-way communication mode where data flows only in one direction, from the sender to the receiver. This means that the sender can only transmit data, and the receiver can only receive data. On the other hand, duplex communication is a two-way communication mode where data can flow in both directions, allowing for simultaneous transmission and reception of data between two devices. Understanding whether a component supports simplex or duplex communication is important for determining how data will be exchanged between devices and ensuring compatibility in a given system.

    Full Duplex
  • Number of Receivers
    1
  • Ambient Temperature Range High

    This varies from person to person, but it is somewhere between 68 and 77 degrees F on average. The temperature setting that is comfortable for an individual may fluctuate with humidity and outside temperature as well. The temperature of an air conditioned room can also be considered ambient temperature.

    70°C
  • Height
    1.6mm
  • Length
    7mm
  • Width
    7mm
  • REACH SVHC

    The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.

    No SVHC
  • Radiation Hardening

    Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation, especially for environments in outer space (especially beyond the low Earth orbit), around nuclear reactors and particle accelerators, or during nuclear accidents or nuclear warfare.

    No
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    ROHS3 Compliant
  • Lead Free

    Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.

    Lead Free
0 Similar Products Remaining

KS8721BL vs KSZ8721B vs KSZ8721BL

Part No.KSZ8721BLKSZ8721BKSZ8721BL
ImagesKSZ8721BL.jpgKSZ8721B.jpgKSZ8721BL(1).jpg
DescriptionIC TXRX PHY 10/100 3.3V 48LQFPMICREL SEMICONDUCTOR KSZ8721B Ethernet Controller,
100Mbps, IEEE 802.3u, 2.375V, 2.625V, SSOP, 48Pins
MICREL SEMICONDUCTOR KSZ8721BL Ethernet Controller,
100Mbps, IEEE 802.3u, 3.3V, 4V, LQFP, 48Pins
ManufacturerMicrelMicrelMicrel
ClassificationInterface ICsInterface ICsInterface ICs
Reference Price(USD)$3.25 $3.10 $3.46 
Inventory(pcs)000
Case/PackageLQFPSSOP-48LQFP-48
Number of Pins_4848
Data Rate_100 Mbps100 Mbps
Number of Positions__48
Supply Voltage (DC)-2.50 V3.30 V
Supply Current-150 mA151 mA
Operating Temperature-0℃ ~ 70℃0℃ ~ 70℃
Supply Voltage-2.375V ~ 2.625V3V ~ 3.6V
Supply Voltage (Max)-2.625 V4 V


Parts with Similar Specs

The three parts on the right have similar specifications to Microchip Technology & KSZ8721BL.

KSZ8721BL Package information

KSZ8721BL Package information.jpg

KSZ8721BL Package information


KSZ8721BL Manufacturer

Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, delivering low-risk product development, reduced overall system cost, and faster time to market to thousands of customers across the world. Microchip, based in Chandler, Arizona, provides excellent technical support as well as consistent delivery and quality.


Popularity by Region

Frequently Asked Questions

How many pins of KSZ8721BL ?

48 pins.

What’s the operating temperature of KSZ8721BL ?

0°C~70°C.

What’s the Voltage - Supply of KSZ8721BL ?

3V~3.6V.

How many numbers of I/O of KSZ8721BL ?

8.

What’s the packaging way of KSZ8721BL ?

48-LQFP.

How many numbers of channels of KSZ8721BL ?

1
KSZ8721BL

Microchip Technology

In Stock: 9500

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