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TC74HC123AF - Dual Retriggerable Monostable Multivibrator

Download the TC74HC123AF datasheet PDF. This datasheet also covers the TC74HC123 variant, as both devices belong to the same dual retriggerable monostable multivibrator family and are provided as variant models within a single manufacturer datasheet.

Description

(1) Stand-by state The external capacitor (Cx) is fully charged to VCC in the stand-by state.

triggering, the QP and QN transistors which are connected to the Rx/Cx node are in the off state.

Features

  • (Note).
  • High speed: tpd = 25 ns (typ. ) at VCC = 5 V Weight DIP16-P-300-2.54A SOP16-P-300-1.27A : 1.00 g (typ. ) : 0.18 g (typ. ).
  • Low power dissipation Standby state: ICC = 4 μA (max) at Ta = 25°C Active state: ICC = 700 μA (max) at Ta = 25°C.
  • High noise immunity: VNIH = VNIL = 28% VCC (min).
  • Output drive capability: 10 LSTTL loads.
  • Symmetrical output impedance: |IOH| = IOL = 4 mA (min).
  • Balanced propagation delays: tpLH ∼.
  • tpHL.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (TC74HC123_Toshiba.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number TC74HC123AF
Manufacturer Toshiba
File Size 393.64 KB
Description Dual Retriggerable Monostable Multivibrator
Datasheet download datasheet TC74HC123AF Datasheet

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TC74HC123AFN DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
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Full PDF Text Transcription

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TC74HC123AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC123AP, TC74HC123AF Dual Retriggerable Monostable Multivibrator The TC74HC123A is a high speed CMOS MONOSTABLE MULTIVIBRATOR fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. There are two trigger inputs, A input (negative edge), and B input (positive edge). These inputs are valid for a slow rise/fall time signal (tr = tf = 1 s) as they are schmitt trigger inputs. This device may also be triggered by using CLR input (positive edge). After triggering, the output stays in a MONOSTABLE state for a time period determined by the external resistor and capacitor (Rx, Cx ).
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