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74HC4538-Q100

Dual retriggerable precision monostable multivibrator

The 74HC4538-Q100 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.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

特性

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)

    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

  • Wide supply voltage range from 2.0 to 6.0 V

  • CMOS low power dissipation

  • CMOS input levels

  • High noise immunity

  • Tolerant of slow trigger rise and fall times

  • Separate reset inputs

  • Triggering from falling or rising edge

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

  • Complies with JEDEC standards

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 V)

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

参数类型

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC4538D-Q100Production2.0 - 6.0CMOS± 5.227low-40~125772.535SO16
74HC4538PW-Q100Production2.0 - 6.0CMOS± 5.227low-40~1251091.037TSSOP16

封装

型号封装尺寸版本回流焊/波峰焊包装状态标示可订购的器件编号，（订购码(12NC)）
74HC4538D-Q100
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_118Active74HC4538D74HC4538D-Q100,118
( 9352 988 58118 )
74HC4538PW-Q100
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveHC453874HC4538PW-Q100,11
( 9352 988 59118 )

环境信息

型号可订购的器件编号化学成分RoHSRHF指示符无铅转换日期
74HC4538D-Q10074HC4538D-Q100,11874HC4538D-Q100Always Pb-free
74HC4538PW-Q10074HC4538PW-Q100,1174HC4538PW-Q100Always Pb-free
品质及可靠性免责声明

文档 (11)

文件名称标题类型日期
74HC4538_Q100Dual retriggerable precision monostable multivibratorData sheet2024-03-26
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
Nexperia_Selection_guide_2023Nexperia Selection Guide 2023Selection guide2023-05-10
hcHC/HCT Spice modelSPICE model2022-02-17
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2023-11-07
SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm bodyPackage information2023-11-08
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08

支持

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模型

文件名称标题类型日期
hcHC/HCT Spice modelSPICE model2022-02-17

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