ON Semiconductor MM74HC688WM
ON Semiconductor MM74HC688WM
MM74HC688  Pinout Diagram_1
MM74HC688 Outline Dimensions_1
MM74HC688 Outline Dimensions_2
MM74HC688 Outline Dimensions_3
MM74HC688 Outline Dimensions_4
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ON Semiconductor MM74HC688WM

Comparators 20-SOIC (0.295, 7.50mm Width) Comparators

Manufacturer No:

MM74HC688WM

Manufacturer:

ON Semiconductor

Utmel No:

1807-MM74HC688WM

Package:

20-SOIC (0.295, 7.50mm Width)

Datasheet:

MM74HC688

ECAD Model:

Description:

20-SOIC (0.295, 7.50mm Width) Comparators 30 ns ns 20 8 Active Low

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Unit Price: $0.462337

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MM74HC688WM information

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Product Comparison
ON Semiconductor MM74HC688WM technical specifications, attributes, parameters and parts with similar specifications to ON Semiconductor MM74HC688WM.
  • Type
    Parameter
  • 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.

    20-SOIC (0.295, 7.50mm Width)
  • Number of Pins
    20
  • 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.

    20-SOIC
  • 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.

    -40°C~85°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.

    Tube
  • Series

    In electronic components, the "Series" refers to a group of products that share similar characteristics, designs, or functionalities, often produced by the same manufacturer. These components within a series typically have common specifications but may vary in terms of voltage, power, or packaging to meet different application needs. The series name helps identify and differentiate between various product lines within a manufacturer's catalog.

    74HC
  • Published
    2005
  • Part Status

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

    Obsolete
  • 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

    1 (Unlimited)
  • Type
    Identity Comparator
  • 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.

    85°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.

    -40°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.

    2V~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.

    74HC688
  • Output

    In electronic components, the parameter "Output" typically refers to the signal or data that is produced by the component and sent to another part of the circuit or system. The output can be in the form of voltage, current, frequency, or any other measurable quantity depending on the specific component. The output of a component is often crucial in determining its functionality and how it interacts with other components in the circuit. Understanding the output characteristics of electronic components is essential for designing and troubleshooting electronic circuits effectively.

    Active Low
  • Polarity

    In electronic components, polarity refers to the orientation or direction in which the component must be connected in a circuit to function properly. Components such as diodes, capacitors, and LEDs have polarity markings to indicate which terminal should be connected to the positive or negative side of the circuit. Connecting a component with incorrect polarity can lead to malfunction or damage. It is important to pay attention to polarity markings and follow the manufacturer's instructions to ensure proper operation of electronic components.

    Inverting
  • Number of Channels
    8
  • 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.

    6V
  • 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.

    2V
  • Number of Bits
    8
  • Propagation Delay

    the flight time of packets over the transmission link and is limited by the speed of light.

    30 ns
  • Quiescent Current

    The quiescent current is defined as the current level in the amplifier when it is producing an output of zero.

    8μA
  • Turn On Delay Time

    Turn-on delay, td(on), is the time taken to charge the input capacitance of the device before drain current conduction can start.

    30 ns
  • Current - Quiescent (Iq)

    The parameter "Current - Quiescent (Iq)" in electronic components refers to the amount of current consumed by a device when it is in a quiescent or idle state, meaning when it is not actively performing any tasks or operations. This parameter is important because it represents the baseline power consumption of the device even when it is not actively being used. A lower quiescent current (Iq) value is desirable as it indicates that the device is more energy-efficient and will consume less power when not in use, which can help extend battery life in portable devices and reduce overall power consumption in electronic systems. Designers often pay close attention to the quiescent current specification when selecting components for low-power applications or battery-operated devices.

    8μA
  • Number of Gates

    The number of gates per IC varies depending on the number of inputs per gate. Two?input gates are common, but if only a single input is required, such as in the 744 NOT(or inverter) gates, a 14 pin IC can accommodate 6 (or Hex) gates.

    8
  • Max Propagation Delay @ V, Max CL

    The parameter "Max Propagation Delay @ V, Max CL" in electronic components refers to the maximum amount of time it takes for a signal to propagate through the component from input to output when operating at a specific voltage (V) and driving a maximum specified load capacitance (CL). This parameter is crucial in determining the speed and performance of the component in a circuit. A shorter propagation delay indicates faster signal processing and better overall performance. Designers use this parameter to ensure that signals can be transmitted and received within the required timing constraints in their electronic systems.

    30ns @ 6V, 50pF
  • High Level Output Current

    High-level Output Current IOH The current flowing into the output at a specified high- level voltage. Low-level Output Current IOL The current flowing into the output at a specified low- level output voltage.

    5.2mA
  • Low Level Output Current

    The current into the output terminal with input conditions applied that, according to the product specification, will establish a low level at the output.

    5.2mA
  • Output Function

    An output function is a function that an optimization function calls at each iteration of its algorithm. Typically, you use an output function to generate graphical output, record the history of the data the algorithm generates, or halt the algorithm based on the data at the current iteration.

    A=B
  • 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
  • RoHS Status

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

    RoHS 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
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Download datasheets and manufacturer documentation for ON Semiconductor MM74HC688WM.

Product Description

1. Description

The MM74HC688WM is an identity comparator integrated circuit from ON Semiconductor, part of the 74HC series. This device is designed to compare two binary inputs and produce an active-low output signal indicating whether the inputs are equal or not. The MM74HC688WM is a surface-mount device (SMD) packaged in a 20-pin Small Outline Integrated Circuit (SOIC) package.

2. Features

  • Low Power Consumption: The quiescent current (Iq) is 8μA, making it suitable for battery-powered applications.
  • High Output Current: The high-level output current is 5.2mA and the low-level output current is also 5.2mA, ensuring reliable operation.
  • Fast Propagation Delay: The maximum propagation delay is 30ns at a supply voltage of 6V and a load capacitance of 50pF.
  • Wide Operating Temperature Range: The device operates between -40°C and 85°C.
  • Lead-Free and RoHS Compliant: The MM74HC688WM is lead-free and RoHS compliant, meeting environmental regulations.
  • Surface Mount Technology: Designed for surface mount technology (SMT), it facilitates easy integration into modern electronic assemblies.

3. Applications

Primary Applications:
  • Digital Logic Systems: The MM74HC688WM can be used in digital logic systems where comparing binary inputs is necessary.
  • Microcontroller Interfacing: It can serve as a comparator in microcontroller-based systems for various control and monitoring applications.
Secondary Applications:
  • Analog-to-Digital Conversion: In some cases, it might be used as part of an analog-to-digital conversion circuit due to its ability to compare analog signals indirectly through digital representation.
  • Sensor Interface: It can be employed in sensor interfaces where detecting equality or inequality between sensor outputs is required.

4. Alternative Parts

Due to its obsolescence, alternative parts may be considered for new designs: - The base part number 74HC688 is still available from other manufacturers like Texas Instruments or NXP Semiconductors. - Other comparators from the same series like the MM74HC165 or MM74HC166 could also be considered depending on specific requirements.

5. Embedded Modules

The MM74HC688WM is not typically used as an embedded module but rather as a standalone IC in various electronic circuits. However, it might be integrated into more complex modules such as: - Microcontroller boards for specific comparator functions. - Logic analyzer modules for digital signal processing.

Conclusion

The MM74HC688WM remains a reliable choice for applications requiring fast and low-power comparators despite its obsolescence status. Its compatibility with modern manufacturing processes makes it suitable for integration into contemporary electronic designs while alternative parts are available for new projects.

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