HCF4538BE

HCF4538BE is a dual precision monostable multivibrator IC used for timing applications.
5,194 Effective Inventory

HCF4538BE

Effective Inventory5,194

HCF4538BE is a dual precision monostable multivibrator IC used for timing applications.

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HCF4538BE DataSheet
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Details

The HCF4538BE is a dual precision monostable multivibrator circuit with an external resistor and capacitor for timing. This integrated circuit is commonly used in applications where accurate timing is required, such as pulse shaping, time delay generation, and frequency division.The HCF4538BE operates on a supply voltage range of 3V to 15V, with a maximum power dissipation of 500mW. It has two monostable inputs, which can be triggered by either a falling edge or a rising edge of an input signal. The output pulse width is determined by the external resistor and capacitor values connected to the timing pins.The HCF4538BE features a wide operating temperature range of -55°C to 125°C, making it suitable for use in a variety of environmental conditions. It is available in a 16-pin dual in-line package (DIP) and can be easily soldered onto a printed circuit board.

Key Features

  • Dual precision monostable multivibrator
  • Operating voltage range: 3V to 18V
  • Triggering from very slow to very fast rise and fall times
  • Adjustable pulse width: 30 ns to 33 minutes
  • High noise immunity
  • CMOS technology for low power consumption

Application

  • Timing circuits
  • Monostable multivibrator applications
  • Precision timing and pulse generation
  • Industrial automation systems
  • Consumer electronics
  • Telecommunications
  • Robotics
  • Automotive applications
  • Medical devices
  • Remote control systems

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Manufacturer STMicroelectronics Product Category ! Multivibrators

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification HCF4538BE PDF Download

FAQs

What is HCF4538BE?

The HCF4538BE is a dual precision monostable multivibrator (one-shot) integrated circuit manufactured by STMicroelectronics. It is designed for generating accurate time delays or pulses in electronic circuits, commonly used in timing applications, pulse generation, and signal conditioning.

How Does HCF4538BE Work?

The HCF4538BE functions as a monostable multivibrator, which means it generates a single pulse output in response to a trigger signal. When triggered, the device produces an output pulse with a duration set by external timing components. The accuracy and stability of the pulse duration make it suitable for various timing and control applications.

How Many Pins does HCF4538BE have and What are the Functions of the Pinout Configuration?

The HCF4538BE is housed in a 16-pin dual in-line package (DIP). The pinout configuration includes:

  • 1, 4, 9, 12 (MR1, TR1, Q1, Q'1): Pins related to the first monostable multivibrator.
  • 2, 5, 8, 11 (CP1, R1, D1, S1): Pins for the control and timing of the first multivibrator.
  • 3, 6, 7, 13 (GND, THR1, DIS1, VDD): Ground, threshold, discharge, and power supply pins for the first multivibrator.
  • 10, 14, 15, 16 (MR2, TR2, Q2, Q'2): Pins related to the second monostable multivibrator.
  • 3, 6, 7, 13 (CP2, R2, D2, S2): Pins for the control and timing of the second multivibrator.
  • 16 (VDD): Power supply pin for the second multivibrator.

What are the Pros and Cons of HCF4538BE?

Pros:

  • Precision Timing: Provides accurate and stable time delays for precise control.
  • Dual Functionality: Includes two monostable multivibrators in a single package for flexibility.
  • Easy Integration: Simple to use and integrate into timing circuits with few external components.
  • Wide Operating Voltage Range: Supports a broad range of power supply voltages for versatile applications.

Cons:

  • Complex Pinout: The 16-pin configuration may require attention to ensure proper connections.
  • External Components: May need additional resistors and capacitors for timing adjustments.
  • Limited Functionality: Primarily designed for monostable operation, may not suit all timing requirements.

Are There Any Equivalents/Alternatives to HCF4538BE for Recommendation?

  • The HEF4538BP from Nexperia is a similar dual monostable multivibrator IC.
  • Alternatives to the HCF4538BE include the MC14538B from ON Semiconductor and the CD4538BC from Texas Instruments.

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