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TC74HC40102AP

Part Number	TC74HC40102AP
Manufacturer	Toshiba
Description	Dual BCD Programmable Down Counter
Published	Jan 23, 2021
Detailed Description	TC74HC40102,40103AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC40102AP, TC74HC40102AF TC74HC401...
Datasheet	TC74HC40102AP PDF File

Overview

TC74HC40102,40103AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC40102AP, TC74HC40102AF TC74HC40103AP, TC74HC40103AF TC74HC40102AP/AF Dual BCD Programmable Down Counter TC74HC40103AP/AF 8-Bit Binary Programmable Down Counter The TC74HC40102A and TC74HC40103A are high speed CMOS PROGRAMMABLE DOWN COUNTERS fabricated with silicon gate C2MOS technology.
They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation.
The output terminal ( CO/ZD ) goes to an active low state when the down count reaches zero.
Since the TC74HC40102A is designed as a BCD counter, programming up to 99 counts is possible.
The TC74HC40103A, with its 8-bit binary construction, can be set to provide up to 255 counts.
Both devices have Inhibit Clock ( CI/CE ), Asynchronous Preset Control ( APE ), Synchronous Preset ( SPE ) and Clear Control ( CLR ) inputs for setting the counter to the maximum counting mode.
All inputs are equipped with protection circuits against static discharge or transient excess voltage.
TC74HC40102AP, TC74HC40103AP TC74HC40102AF, TC74HC40103AF Features • High speed: fmax 40 MHz (typ.
) at VCC = 5 V • Low power dissipation: ICC = 4 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 • Wide operating voltage range: VCC (opr) = 2 to 6 V • Pin and function compatible with 40102B, 40103B Weight DIP16-P-300-2.
54A SOP16-P-300-1.
27A : 1.
00 g (typ.
) : 0.
18 g (typ.
) Pin Assignment Start of commercial production 1988-11 1 2014-03-01 IEC Logic Symbol TC74HC40102A TC74HC40102,40103AP/AF TC74HC40103A Truth Table CLR H H H H L Control Inputs APE SPE CI/CE H H H H H L H L X L X X X X X Mode Functional Description Count Inhibit Count is inhibited regardless of other inputs.
Regular Count Down count on the rising edge of C...

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