CD74AC163M96

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The CD74AC163M96 is a CMOS synchronous counter, part of a family of logic devices manufactured by Texas Instruments. It is an 8-bit version of the CD74AC164M96, allowing for a maximum count of 255. It is based on a ripple counter configuration with two sectionalized clock inputs, as well as two complementary output enable pins. The device also features modified Q outputs, allowing for an easy connection to external shift registers. In addition, the device can be reset by a low voltage level and the count can be preset by connecting the corresponding D inputs together.

The CD74AC163M96 has application fields in a wide range of products such as counters, timers, and frequency dividers. In counters, it can serve as a linear GPS time receiver for accurate time stamping of GPS coordinates. In timers, it can be used to accurately determine and adapt to predefined alarm settings from an internal clock source or an external source. Lastly, in frequency dividers, it can be used to reduce unwanted frequency or clock signal noise.

The CD74AC163M96 is easily integrated into most digital systems. It is based on CMOS technology and offers industry-leading speed and low-power consumption, making it ideal for portable devices. In addition, the device uses Schmitt triggers at all of its inputs and enables high noise immunity and signal buffering, as well as precise low-level signal recognition. Furthermore, the improved Q outputs allow for shift register operation and improved signal propagation delay.

The CD74AC163M96 is comprised of two sections: the counter and the output buffers. The counter section has two clock inputs, CP and CP2. CP is the main clock that feeds the counter and the CP2 Clock feeds either the most significant bit (MSB) or the least significant bit (LSB) of the counter. The counter also has an asynchronous “clear” (CLR) and two asynchronous “preset” (PREx) inputs. The counter has eight outputs (Q0-Q7) that are sequentially activated with each cell of the counter in succession. Each output is internally wired to its corresponding “D” input.

The output section, located between the clock inputs and the Q outputs, contains the buffers and drivers that transfer the TTL/CMOS logic output signals from the counter section to the appropriate pins. The output section has an active low-level output enable pin (OE) that controls the output buffer and drivers, and will produce either a high (1) or low (0) output connect level at each of the Q outputs, depending on the state of the D inputs.

The CD74AC163M96 offers many benefits for digital systems. It is internally synchronized, making it ideal for high-speed counting and data latching applications. With its improved output drivers and buffer, it provides extremely low power consumption and offers low Vcc levels. The preset and clear inputs make it easy to reset the counter value and the two clock inputs allow for easy connection to external oscillators and frequency dividers.

In summary, the CD74AC163M96 is a CMOS synchronous counter that has application fields in counters, timers, and frequency dividers. It features two sectionalized clock inputs, two complementary output enable pins, and eight Q outputs. The device uses Schmitt triggers at all of its inputs and offers improved output drivers and buffers for low-power consumption and improved signal propagation delay. With its adjustable clock functions and preset and clear inputs, the CD74AC163M96 is an easy-to-integrate choice for digital systems with high-speed counting and data-latching requirements.

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