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74HCT4538 Datasheet

Part Number 74HCT4538
Manufacturers nexperia
Logo nexperia
Description Dual retriggerable precision monostable multivibrator
Datasheet 74HCT4538 Datasheet74HCT4538 Datasheet (PDF)

74HCT4538 Dual retriggerable precision monostable multivibrator Rev. 6 — 11 February 2021 Product data sheet 1. General description The 74HCT4538 is a dual retriggerable-resettable monostable multivibrator. Each multivibrator has two trigger/retrigger inputs (nA and nB), a direct reset input (nCD), two complementary outputs (nQ and nQ), and two pins (nREXT/CEXT and nCEXT) for connecting the external timing components CEXT and REXT. Typical pulse width variation over temperature range is ± 0..

  74HCT4538   74HCT4538






Part Number 74HCT4538
Manufacturers NXP Semiconductors
Logo NXP Semiconductors
Description Dual retriggerable precision monostable multivibrator
Datasheet 74HCT4538 Datasheet74HCT4538 Datasheet (PDF)

74HC4538; 74HCT4538 Dual retriggerable precision monostable multivibrator Rev. 4 — 24 February 2016 Product data sheet 1. General description The 74HC4538; 74HCT4538 is a dual retriggerable-resettable monostable multivibrator. Each multivibrator has two trigger/retrigger inputs (nA and nB), a direct reset input (nCD), two complementary outputs (nQ and nQ), and two pins (nREXT/CEXT and nCEXT) for connecting the external timing components CEXT and REXT. Typical pulse width variation over tempe.

  74HCT4538   74HCT4538







Dual retriggerable precision monostable multivibrator

74HCT4538 Dual retriggerable precision monostable multivibrator Rev. 6 — 11 February 2021 Product data sheet 1. General description The 74HCT4538 is a dual retriggerable-resettable monostable multivibrator. Each multivibrator has two trigger/retrigger inputs (nA and nB), a direct reset input (nCD), two complementary outputs (nQ and nQ), and two pins (nREXT/CEXT and nCEXT) for connecting the external timing components CEXT and REXT. Typical pulse width variation over temperature range is ± 0.2 %. The device may be triggered by either the positive or the negative edges of the input pulse. The duration and accuracy of the output pulse are determined by the external timing components CEXT and REXT. The output pulse width (TW) is equal to 0.7 × REXT × CEXT. The linear design techniques guarantee precise control of the output pulse width. A LOW level at nCD terminates the output pulse immediately. Schmitt-trigger action in the trigger inputs makes the circuit highly tolerant to slower rise and fall times. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. 2. Features and benefits • Tolerant of slow trigger rise and fall times • High noise immunity • Separate reset inputs • Triggering from falling or rising edge • Complies with JEDEC standard no. 7A • Wide supply voltage range from 4.5 to 5.5 V • CMOS low power dissipation • TTL input levels • Latch-up performance exceeds 100 mA per JESD 78 Class II .


2019-07-23 : BC817K    BAS21TH    MMZ0603AFY560VT000    BAS16TH    74AHC123A    74ABT74    74ALVT16823    74LV123    74LV4060    74HCT4538   


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