Texas Instruments 74HC390 Dual 4-Bit Decade Ripple Counter IC (74390 IC) DIP-16 Package Tactile Switch Model FC3PMNTCT Connection Type XLR

Model FC3PMNTCT  Connection Type XLR Capacitance Between Contacts ‚¬°¤4pF Contact Resistance ‚¬°¤3mΩ Dielectric Strength 1

18-pin DIP

the TO-247 is similar to the older TO-218 package but is better

Externally programmable accurate current limit

These are Carbon Film Resistor with a value of 56 ohm 1/8W and tolerance of ±5%

Texas Instruments 74HC390 Dual 4-Bit Decade Ripple Counter IC (74390 IC) DIP-16 Package Tactile Switch Model FC3PMNTCT Connection Type XLR74HC series ICs are High speed logic gates with very low power consumption that utilize advanced silicon gate CMOS technology and 74HC390 is one of them. 74HC390 ICs is a dual decade counter which contains two independent ripple counters. The counter has four separate sections. The counter has two divide by 2 sections and two divide by 5 sections. Divide by 2 sections share a common asynchronous master reset input ( 1MR ) and divide by 5 sections also