CD40102BNSR

Timing:	Synchronous
Base Part Number:	40102
Supplier Device Package:	16-SO
Package / Case:	16-SOIC (0.209", 5.30mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 105°C
Voltage - Supply:	3V ~ 18V
Trigger Type:	Positive Edge
Count Rate:	2.4MHz
Series:	4000B
Reset:	Asynchronous
Number of Bits per Element:	4
Number of Elements:	2
Direction:	Down
Logic Type:	BCD Counter
Part Status:	Active
Packaging:	Tape & Reel (TR)

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<div class="categories"> <h2>Logic - Counters, Dividers</h2></div><div class="article-body"> <p>CD40102BNSR is a divider-counter integrated circuit (IC) widely used in many applications. It provides the basic building block for divide-by-n circuits that counts down from an input frequency to any desired modulo count. It also provides a wide range of divider ratio for applications where a down-counter is needed.</p> <p>CD40102BNSR is a dual decade counter. A decade counter is one that counts from zero to nine and then cycles back to zero, so this IC has two decade counters. It is 8-bit wide, 16-pin DIP integrated circuit with a maximum operating frequency of 3MHz. It is constructed with MOS technology, making it more reliable than traditional divider circuits.</p> <p>In its working principle, the input clock pulses is provided to the clock enable (Ck-In) input of the IC, feeding the output of one counting chain to its next one, ultimately resetting it to zero. The division ratio of the counter is up to 10^10, or one billion.</p> <p>CD40102BNSRs are widely used to divide input clocks of higher frequency into lower frequency clocks in the application fields of laboratory equipment, data acquisition systems, measuring instruments and even digital clock circuits. They are also used as frequency dividers in frequency synthesizers, microcontroller’s for automotive application, and digital large-scale integrated (LSI) designs.</p> <p>In applications where noise is an issue, such as motor control and telecommunication systems, devices such as the CD40102BNSR are ideal for providing the low noise clock divider needed. When used as an oscillator, its stability is lower than a crystal-controlled oscillator because of the internal noise on its timing resistor.</p> <p>The reset input also acts as a reset input and allows the device to reset its output to synchronize with the input pulses without being affected by the phase and frequency of the input pulses. This functionality is often needed in data acquisition systems where the data acquisition frequency is much higher than the external clock frequency.</p> <p>The clock enable and reset inputs of the CD40102BNSR provide flexibility in timing control of the dividers. The clock enable input can be used to disable the counting operation and then reset the output to zero. The reset input can be used to reset the output to zero and then enable the counting operation. The reset and clock enable inputs operate independently, so both can be used at the same time.</p> <p>CD40102BNSR also provides options like triggering, gating, and synchronization, enabling multiple ICs to be used in the same timing and counters in applications requiring higher-order or complex decomposition. By cascading multiple CD40102BNSR ICs, up to 256 divide ratios are possible.</p> <p>In conclusion, CD40102BNSR is an ideal choice for any application needing a reliable and highly accurate count down IC. With its low noise and good stability, it can provide the exact solution for a wide range of applications, from data acquisition systems to motor and combustion control.</p></div>

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