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DM74LS221N

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Fairchild/ON Semiconductor DM74LS221N

Part Number:

DM74LS221N

Manufacturer:

Fairchild/ON Semiconductor

Ventron No:

3219098-DM74LS221N

Description:

IC ONE-SHOT DL NON-RETRIG 16-DIP

ECAD Model:

Datasheet:

DM74LS221

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Delivery:

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Part Overview

Description
The DM74LS221 is a dual monostable multivibrator with a Schmitt-trigger input. Each device has three inputs, allowing for either leading-edge or trailing-edge triggering. Pin (A) is an active-LOW trigger transition input, and pin (8) is an active-HIGH transition Schmitt-trigger input that provides jitter-free triggering for inputs with transition rates as slow as 1 volt/second. This input has excellent noise immunity due to hysteresis. Additionally, an internal latching circuit at the input stage provides high immunity to Vcc noise. The clear (CLR) input can terminate the output pulse at a predetermined time, independent of the timing components. This (CLR) input also serves as a trigger input when pulsed with a low-level pulse transition (r).

Features
Dual, highly stable one-shot
Compensated for Vcc and temperature variations
Pin-out identical to DM74LS123
Output pulse width range from 30 ns to 70 seconds
Hysteresis provided at (B) input for added noise immunity
Direct reset terminates output pulse
Triggerable from CLEAR input
DTL TTL compatible
Input clamp diodes

Applications
Timing circuits
Pulse generation
Monostable multivibrators
Retriggerable one-shots
Pulse width modulation
Frequency division
Logic level conversion

Specifications

Fairchild/ON Semiconductor DM74LS221N technical specifications, attributes, parameters and parts with similar specifications to Fairchild/ON Semiconductor DM74LS221N.

  • Mounting Type

    Mounting Type refers to the method by which an electronic component is attached to a printed circuit board (PCB) or other surface. Common mounting types include: * Through-hole: Component leads are inserted into holes in the PCB and soldered on the other side. * Surface-mount: Component is placed on the surface of the PCB and soldered in place. * Press-fit: Component is pressed into place on the PCB without soldering. * Socket: Component is inserted into a socket on the PCB, allowing for easy replacement. The mounting type is determined by factors such as the component's size, shape, and power requirements.

    Through Hole
  • Package / Case

    Package / Case refers to the physical housing or enclosure that encapsulates an electronic component. It provides protection, facilitates handling, and enables electrical connections. The package type determines the component's size, shape, pin configuration, and mounting options. Common package types include DIP (dual in-line package), SOIC (small outline integrated circuit), and BGA (ball grid array). The package also influences the component's thermal and electrical performance.

    16-DIP (0.300, 7.62mm)
  • Supplier Device Package
    16-PDIP
  • Operating Temperature

    Operating Temperature is the range of temperatures at which an electronic component can function properly. It is typically specified in degrees Celsius (°C) and indicates the minimum and maximum temperatures at which the component can operate without experiencing damage or degradation. Operating Temperature is an important parameter to consider when designing electronic circuits, as it ensures that the components will function reliably in the intended operating environment.

    0°C~70°C
  • Packaging
    Tube
  • Published
    2000
  • Series

    Series, in the context of electronic components, refers to the arrangement of components in a circuit. When components are connected in series, they form a single path for current to flow through. The total resistance of a series circuit is the sum of the individual resistances of each component. Series connections are often used to control the flow of current in a circuit, as the total resistance can be adjusted by changing the number or type of components in the series.

    74LS
  • Part Status

    Part Status is an electronic component parameter that indicates the availability and production status of a component. It is typically used to inform customers about the availability of a component, whether it is in production, end-of-life, or obsolete. Part Status can also provide information about any restrictions or limitations on the component's use, such as whether it is only available for certain applications or if it has been discontinued.

    Obsolete
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a measure of the susceptibility of a surface mount electronic component to moisture-induced damage during soldering. It is classified into six levels, from 1 (least sensitive) to 6 (most sensitive). MSL is determined by the materials used in the component's construction, including the solderability of its terminals and the presence of moisture-absorbing materials. Components with higher MSL ratings require more stringent handling and storage conditions to prevent moisture absorption and subsequent damage during soldering.

    1 (Unlimited)
  • Voltage - Supply
    4.75V~5.25V
  • Base Part Number
    74LS221
  • Propagation Delay
    65ns
  • Current - Output High, Low
    400μA 8mA
  • Logic Type

    Logic Type refers to the type of logic implemented by an electronic component, such as a logic gate or flip-flop.

    Monostable
  • Independent Circuits
    2
  • Schmitt Trigger Input
    No
  • RoHS Status
    Non-RoHS Compliant

Certification

  • ISO 9001
  • ISO 13485
  • ISO 45001
  • ASA
  • ESD
  • DUNS
  • SMTA
  • ROHS
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