The SN74ACT7811-18FNR is an integrated circuit (IC) component that belongs to the SN74ACT family. It is a synchronous 18-bit binary counter with 10-bit preloaded ripple counter and 8-bit programmable synchronous up/down counter. This versatile component offers various features, making it suitable for different applications. Here is an overview of its key features:
1. Synchronous Operation: The SN74ACT7811-18FNR operates synchronously, which means all its outputs change simultaneously based on the clock input.
2. 18-Bit Binary Counter: It consists of an 18-bit binary counter that can count from 0 to 262,143 (2^18 - 1). The counter increments by one for every clock cycle.
3. 10-Bit Ripple Counter: In addition to the binary counter, the IC incorporates a 10-bit preloaded ripple counter. This counter counts from 0 to 1,023 (2^10 - 1) and can be preloaded with an initial value.
4. Programmable Up/Down Counter: The SN74ACT7811-18FNR also features an 8-bit programmable synchronous up/down counter. This counter can count up or down based on the control inputs, giving flexibility to the user.
5. Cascadable: Multiple SN74ACT7811-18FNR chips can be cascaded together to increase the counting range
