15815503065
74AHC123 小逻辑门IC
品牌1: SGM/圣邦微
工作电压: 2-5.5V
封装: SOIC-16 and TSSOP-16
批号: 全新原装
报价: 0.50元/个
最小起订: 3000 个
库存: 100000000 个
发货期限: 自买家付款之日起 2 天内发货
有效期至: 长期有效
发布时间: 2023-03-04 18:45
浏览次数: 78
手机号: 15815503065
电话: 0755-83538626
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详细信息

GENERAL DEscriptION

The 74AHC123 is a high-speed silicon-gate CMOS device. It is a dual retriggerable monostable multivibrator.

The device has three ways of output pulse-duration control. First, when nA input sets low, the nB input goes high. Second, when nB input sets high, the nA input goes low. Third, when nA input sets low and nB input sets high, the nRD input goes high. Figure 3 shows the output pulse control using retrigger pulse and Figure 4 illustrates the output pulse control using reset input nRD.

The output pulse-duration can be set through the selection of external resistance (RPROG) and capacitance (CPROG) values. All the inputs have Schmitt-trigger actions with sufficient hysteresis to handle slow input rise and fall times.

When started, the gated active low-going edge (nA) input or the active high-going edge (nB) input can help to prolong the basic output pulse-duration. Through it, an ideal output pulse period (nQ = high, nQ = low) can be achieved. Pulse duration can be reduced by a low-going edge on nRD input.

FEATURES

  • Supply Voltage Range: 2.0V to 5.5V

  • Inputs Accept Voltages Higher than the Supply Voltage

  • All Inputs with Schmitt-Trigger Actions

  • Triggered from Gated Active High or Active Low Edge Inputs

  • Retriggerable for Very Long Pulses

  • Direct Reset Stops Output Pulse

  • CMOS Level Inputs

  • -40 to +125 Operating Temperature Range

  • Available in Green SOIC-16 and TSSOP-16 Packages


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