CD74HC393M96

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The CD74HC393M96 is a CMOS dual 4-bit binary counter, which belongs to the Logic - Counters, Dividers family. It is designed to accept a wide power supply range (2 to 6 V) and performs the dual function of counting and divide-by-two division with latch operation. This device is mainly used in electronic applications like multivibrator designs, divide-by-n counters, frequency division, or any other application requiring two 4-bit counters.

The CD74HC393M96 consists of two independent binary counters in one package, each capable of counting up to 16 (24) stages in the forward and backward direction with 4-bit parallel outputs (So1, So2, So3, So4, Sn1, Sn2, Sn3, Sn4, Co1 and Co2). In addition, the counters can be preset to any value between 0 and 15 which is useful in a variety of applications. The counters have separate clock and load inputs for each of the count inputs. The clock inputs (CLKn, CLKp) and load inputs (LDn, LDp) are active LOW.

The working principle of the CD74HC393M96 involves the counting process performed by the logic to register each of the pulses called upon the clock. The count appears at the output as the logic feeds back the binary outputs of the counter. As the output reaches a certain value, the output can be reset to zero or preset to specific binary value by means of the LDn or LDp inputs.

The device features an overflow output (ORn) which is active LOW and an output enable (OE). The enable of the output is controlled by the OE pin and activates the output pins and overflow signals when disabled. Lastly, the device also has an asynchronous clear input (RST) which is used to reset the data register and clear the output.

The CD74HC393M96 is highly suitable for many application fields because of its low-power CMOS technology, small size and high speed. The device is especially suitable for timing and frequency division circuits in various systems such as alarm and security systems, factory automation circuits, or remote control systems. It is also often used in digital circuits, like traffic light control systems, or any other system that requires counting or dividing.

The CD74HC393M96 is designed to provide stable output level with fast transition times even when operated over the full temperature range and different supply voltages (2 to 6 V). The device is characterized for operation from 0°C to 70°C (Industrial Range) and features a cycle time of 4.2 ns and propagation delay time of 4.7 ns.

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