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74HC5555D

Programmable delay timer with oscillator

The 74HC5555 is a precision programmable delay timer which consist of:

  • 24-stage binary counter

  • integrated oscillator (using external timing components)

  • retriggerable/non-retriggerable monostable

  • automatic power-ON reset

  • output control logic

  • oscillator control logic

  • overriding asynchronous master reset (MR).

The 74HC5555 inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

此产品已停产

Features and benefits

  • Supply voltage range from 2.0 V to 6.0 V

  • CMOS input levels

  • Positive and negative edge triggered

  • Retriggerable or non-retriggerable

  • Programmable delay:

    • minimum: 100 ns

    • maximum: depends on input frequency and division ratio

  • Divide-by range of 2 to 224

  • Direct reset terminates output pulse

  • Very low power consumption in triggered start mode

  • 3 oscillator operating modes:

    • RC oscillator

    • Crystal oscillator

    • External oscillator

  • Device is unaffected by variations in temperature and VCC when using an external oscillator

  • Automatic power-ON reset

  • Schmitt trigger action on both trigger inputs

  • Direct drive for a power transistor

  • High precision due to digital timing

  • Complies with JEDEC standard no. 7 A

  • ESD protection:

    • HBM EIA/JESD22-A114A exceeds 2000 V

    • MM EIA/JESD22-A115-A exceeds 200 V

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

Applications

  • Motor control

  • Delay circuits

  • Precision timing

  • Domestic appliances

参数类型

型号 Product status VCC (V) Output drive capability (mA) Logic switching levels tpd (ns) Power dissipation considerations Tamb (°C) Rth(j-a) (K/W) Ψth(j-top) (K/W) Rth(j-c) (K/W) Package name
74HC5555D End of life 2.0 - 6.0 - 20/ + 25 CMOS 89 low -40~125 64 1.0 21 SO16

封装

下表中的所有产品型号均已停产 。

型号 可订购的器件编号，（订购码(12NC)） 状态 标示 封装 外形图 回流焊/波峰焊 包装
74HC5555D 74HC5555D,112
(933998590112)		 Obsolete 74HC5555D SOT109-1
SO16
(SOT109-1) 		SOT109-1 SO-SOJ-REFLOW
SO-SOJ-WAVE
WAVE_BG-BD-1
SOT109-1_112
74HC5555D,118
(933998590118)		 Obsolete 74HC5555D SOT109-1_118

环境信息

下表中的所有产品型号均已停产 。

型号 可订购的器件编号 化学成分 RoHS RHF指示符
74HC5555D 74HC5555D,112 74HC5555D rohs rhf rhf
74HC5555D 74HC5555D,118 74HC5555D rohs rhf rhf
品质及可靠性免责声明

Series

文档 (10)

文件名称 标题 类型 日期
74HC5555 Programmable delay timer with oscillator Data sheet 2018-07-05
AN11044 Pin FMEA 74HC/74HCT family Application note 2019-01-09
SOT109-1 3D model for products with SOT109-1 package Design support 2020-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
SO16_SOT109-1_mk plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body Marcom graphics 2017-01-28
SOT109-1 plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body Package information 2023-11-07
SO-SOJ-REFLOW Footprint for reflow soldering Reflow soldering 2009-10-08
HCT_USER_GUIDE HC/T User Guide User manual 1997-10-31
SO-SOJ-WAVE Footprint for wave soldering Wave soldering 2009-10-08
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08

支持

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模型

文件名称 标题 类型 日期
SOT109-1 3D model for products with SOT109-1 package Design support 2020-01-22

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

交互式数据手册