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CD4098BF
Integrated Circuits (ICs)

CD54HC4538F3A

Active
Texas Instruments

HIGH SPEED CMOS LOGIC DUAL RETRIGGERABLE PRECISION MONOSTABLE MULTIVIBRATOR

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Search across all available documentation for this part.

DocumentsDatasheetImplications of Slow or Floating CMOS Inputs (Rev. E)+13
CD4098BF
Integrated Circuits (ICs)

CD54HC4538F3A

Active
Texas Instruments

HIGH SPEED CMOS LOGIC DUAL RETRIGGERABLE PRECISION MONOSTABLE MULTIVIBRATOR

Deep-Dive with AI

DocumentsDatasheetImplications of Slow or Floating CMOS Inputs (Rev. E)+13

Technical Specifications

Parameters and characteristics for this part

SpecificationCD54HC4538F3A
Current - Output High, Low [custom]5.2 mA
Current - Output High, Low [custom]5.2 mA
Independent Circuits2
Logic TypeMonostable
Mounting TypeThrough Hole
Operating Temperature [Max]125 °C
Operating Temperature [Min]-55 °C
Package / Case7.62 mm, 0.3 in
Package / Case16-CDIP
Propagation Delay43 ns
Schmitt Trigger InputTrue
Supplier Device Package16-CDIP
Voltage - Supply [Max]6 V
Voltage - Supply [Min]2 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
ArrowN/A 25$ 28.74
Texas InstrumentsTUBE 1$ 40.89
100$ 35.72
250$ 27.54
1000$ 24.63

Description

General part information

CD54HC4538 Series

The ’HC4538 and ’HCT4538 are dual retriggerable/resettable monostable precision multivibrators for fixed voltage timing applications. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of RXand CXprovides a wide range of output pulse widths from the Q and Q\ terminals. The propagation delay from trigger input-to-output transition and the propagation delay from reset input-to-output transition are independent of RXand CX.

Leading-edge triggering (A) and trailing edge triggering (B)\ inputs are provided for triggering from either edge of the input pulse. An unused "A" input should be tied to GND and an unused B\ should be tied to VCC. On power up the IC is reset. Unused resets and sections must be terminated. In normal operation the circuit retriggers on the application of each new trigger pulse. To operate in the non-triggerable mode Q\ is connected to B\ when leading edge triggering (A) is used or Q is connected to A when trailing edge triggering (B)\ is used. The period (. CMINis 0pF.

The ’HC4538 and ’HCT4538 are dual retriggerable/resettable monostable precision multivibrators for fixed voltage timing applications. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of RXand CXprovides a wide range of output pulse widths from the Q and Q\ terminals. The propagation delay from trigger input-to-output transition and the propagation delay from reset input-to-output transition are independent of RXand CX.