74AC191Manufacturer: FAI 4-Bit Up/Down Counter | |||
Partnumber | Manufacturer | Quantity | Availability |
---|---|---|---|
74AC191 | FAI | 47 | In Stock |
Description and Introduction
4-Bit Up/Down Counter The 74AC191 is a 4-bit synchronous up/down binary counter manufactured by Fairchild Semiconductor (FAI). It operates with a wide voltage range of 2V to 6V and is designed for high-speed operation, making it suitable for various digital applications. The device features synchronous counting, meaning the outputs change state simultaneously with the clock input. It includes a count enable input, an up/down control input, and a parallel load capability for presetting the counter. The 74AC191 is available in various package types, including DIP (Dual In-line Package) and SOIC (Small Outline Integrated Circuit). It is characterized by low power consumption and high noise immunity, typical of the AC logic family.
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