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74HC123PW

Dual retriggerable monostable multivibrator with reset

The 74HC123; 74HCT123 is a dual retriggerable monostable multivibrator with reset. The basic output pulse width is programmed by selection of external components (REXT and CEXT). Once triggered this basic pulse width may be extended by retriggering either of the edge triggered inputs (nA or nB). By repeating this process, the output pulse period (nQ = HIGH, nQ = LOW) can be made as long as desired. Alternatively, an output delay can be terminated at any time by a LOW-going edge on input nRD. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Schmitt-trigger action in the nA and nB inputs, makes the circuit highly tolerant to slower input rise and fall times.

Alternatives

可订购部件

型号 可订购的器件编号 订购代码(12NC) 封装 从经销商处购买
74HC123PW 74HC123PW,118 935186860118 SOT403-1 订单产品

特性

  • Wide supply voltage range from 2.0 V to 6.0 V

  • CMOS low power dissipation

  • High noise immunity

  • 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)

  • Input levels:

    • For 74HC123: CMOS level

    • For 74HCT123: TTL level

  • DC triggered from active HIGH or active LOW inputs

  • Retriggerable for very long pulses up to 100 % duty factor

  • Direct reset terminates output pulse

  • Schmitt-trigger action on all inputs except for the reset input

  • ESD protection:

    • HBM JESD22-A114F exceeds 2000 V

    • MM JESD22-A115-A exceeds 200 V

  • Multiple package options

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

参数类型

型号Product 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
74HC123PWProduction2.0 - 6.0CMOS± 5.226low-40~1251223.951.5TSSOP16

PCB Symbol, Footprint and 3D Model

Model Name描述

Package

型号可订购的器件编号，（订购码(12NC)）状态标示封装尺寸版本回流焊/波峰焊包装
74HC123PW74HC123PW,118
( 9351 868 60118 ) 		ActiveHC123
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118

下表中的版本已停产。参见表 停产信息 了解更多信息。

型号可订购的器件编号，（订购码(12NC)）状态标示封装尺寸版本回流焊/波峰焊包装
74HC123PW74HC123PW,112
( 9351 868 60112 ) 		Withdrawn / End-of-lifeHC123
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_112

停产信息

型号可订购的器件编号Ordering code最后一次购买日期最后一次交货日期替代产品状态备注
74HC123PW74HC123PW,1129351868601122021-12-312022-06-3074HC123PWVersion withdrawal

环境信息

型号可订购的器件编号化学成分RoHSRHF指示符
74HC123PW74HC123PW,11874HC123PW

下表中的版本已停产。参见表 停产信息 了解更多信息。

型号可订购的器件编号化学成分RoHSRHF指示符
74HC123PW74HC123PW,11274HC123PW
品质及可靠性免责声明

系列

文档 (7)

文件名称标题类型日期
74HC_HCT123Dual retriggerable monostable multivibrator with resetData sheet2021-08-11
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
74HC123PW_Nexperia_Product_Reliability74HC123PW Nexperia Product ReliabilityQuality document2023-05-29
hcHC/HCT Spice modelSPICE model2022-02-17
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT403-1_118TSSOP16; Reel pack for SMD, 13"; Q1/T1 product orientationPacking information2020-02-14

支持

如果您需要设计/技术支持，请告知我们并填写 应答表, 我们会尽快回复您。

模型

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

PCB Symbol, Footprint and 3D Model

Model Name描述

订购、定价与供货

型号Orderable part numberOrdering code (12NC)包装Packing quantity在线购买
74HC123PW74HC123PW,118935186860118SOT403-1_118- 订单产品

样品

安世半导体客户可通过我们的销售机构或直接通过在线样品商店订购样品： https://extranet.nexperia.com.

样品订单通常需要2-4天寄送时间。

如果您尚未取得安世半导体的直接采购帐号，我们的全球与区域经销网络可以协助您取得样品。

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