MC14538BDTR2

Multivibrators Overview

The MC14538BDTR2G is a dual precision retriggerable and resettable monostable multivibrator manufactured by onsemi. It operates within a supply voltage range of 3.0 Vdc to 18 Vdc and supports an operating temperature range from -55°C to +125°C. The device generates accurate output pulses with widths ranging from 10 μs to 10 s, determined by external timing components RX and CX using the formula T = RX × CX. It features latched trigger inputs allowing unlimited rise and fall times, separate latched reset inputs, and compatibility with TTL loads.

Multivibrators Feature Summary

• Dual precision monostable multivibrator architecture supporting independent timing for two channels
• Retriggerable and resettable functionality allowing pulse width extension or immediate termination
• Flexible triggering capability accepting positive-going edges on A inputs or negative-going edges on B inputs
• Latched trigger and reset inputs ensuring reliable operation with signals having unlimited rise and fall times

Multivibrators Applications

• Pulse generation circuits requiring precise timing control
• Debouncing switches or contacts in digital logic systems
• Frequency division and pulse stretching applications
• Timing delays in sequential logic control networks

Multivibrators Procurement Notes

Verify the complete part number includes the 'G' suffix indicating lead-free and RoHS compliance status. Confirm the 'DT' suffix corresponds to the TSSOP-16 package variant required for your PCB layout. Ensure ordering quantities align with standard tape and reel specifications provided in the manufacturer's documentation.

Multivibrators Selection Notes

Select this component when dual independent monostable channels are required within a single package. Consider the wide supply voltage range suitable for various logic families. Evaluate external timing component tolerances as they directly impact pulse width accuracy. Verify thermal dissipation requirements against the maximum power dissipation rating for the specific application environment.

Multivibrators Part Context

This device belongs to the MC14538B series of CMOS monostable multivibrators. It offers pin-for-pin compatibility with legacy parts such as the MC14528B and CD4528B (CD4098), facilitating direct replacements in existing designs. The family provides robust performance across industrial temperature ranges with low quiescent current consumption.

Multivibrators Replacement Considerations

Direct pin-compatible substitutes include the MC14528B and CD4528B. For applications requiring pulse widths less than 10 μs with supplies up to 6 V, the MC54/74HC4538A is recommended. Automotive-grade alternatives with unique site control requirements utilize the NLV prefix.