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PC74HC138T-D Datasheet





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PC74HC138T-D Price

Item	Symbol	Conditions	Min	Typ	Max	Unit
Reverse voltage	{	Ii{= lOuA	30			V
Dark current	Id	t= 1V			5	nA
Light current	1 1	Vi{= 1V. E= 10001x	9	11
Spectral sensitivity	^		700~1100
Peak wavelength	D			920
Switching speeds	tF tf	VF lV, R= 1KS2		2		Usec
Capacitance	Ct	= 1V. f= 1MHz		10		pF
Resistance	R,"	F 1V Va= 0.5V		150	200	I<Q
Signal slope	d+3	M= ly	100	0 100
Light current difference	Ii				±2	%

PC74HC138T-D on stock

The CM1214-OIDF/DE and the CM1214-OIST/SO are single channel ESD protectors available in a 3-lead DFN-3 and SOT23-3 packages respectively. The CM1214-OIDF/DE is housed in a very small form fac- tor DFN package that provides up t0 20% and 32% board space savings when it is used in place of SC70 and SOT23 packages. The CM1214-02MS/MR is a dual channel ESD protector and is available in an 8- lead MSOP-8 package. All three devices are available with optional lead-free finishing.

RATIOMETRIC OPERATION If the output from a transducer varies with its supply then an external reference for the ZN4448/9 should be derived from the same supply. The external reference can vary from +1.5 to +3.OV. The ZN448/9 will operate ifVREFIN is less than +1.5V but reduced overdrive to the comparatorwillincreaseits delay and so the conversion time will need to be increased.

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