TC74HC4538_ToshibaSemiconductor.pdf
Datasheet Details
Part number:
TC74HC4538AFT, TC74HC4538
Manufacturer:
Toshiba ↗ Semiconductor
File Size:
303.18 KB
Description:
Dual retriggerable monostable multivibrator.
Note:
This datasheet PDF includes multiple part numbers: TC74HC4538AFT, TC74HC4538.
Please refer to the document for exact specifications by model.
TC74HC4538AFT, TC74HC4538, Dual Retriggerable Monostable Multivibrator
(1) Stand-by state The external capacitor is fully charge to VCC in the stand-by state.
That means, before triggering, QP and QN transistors which are connected to the T2 node are in the off state.
Two comparators that relate to the timing of the output pulse, and two reference voltage supplies stop
TC74HC4538AP/AF/AFT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC4538AP, TC74HC4538AF, TC74HC4538AFT Dual Retriggerable Monostable Multivibrator The TC74HC4538A 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 (positive edge input), and B input (negative edge input).
These inputs a
TC74HC4538AFT Features
* (Note)
* High speed: tpd = 25 ns (typ.) at VCC = 5 V
* Low power dissipation Stand by state: ICC = 4 μA (max) at Ta = 25°C Active state: ICC = 300 μA (max) at Ta = 25°C
* High noise immunity: VNIH = VNIL = 28% VCC (min)
* Output drive capability: 10 LSTTL loads
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