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SL4516B
Presettable Up/Down Counter
High-Voltage Silicon-Gate CMOS
The SL4516B Presettable Binary Up/Down Counter consists of four synchronously clocked D -type flip-flops (with a gating structure to provide T-type flip-flop capability) connected as counters. This counter can be cleared by a high level on the RESET line, and can be preset to any binary number present on the jam inputs by a high level on the PRESET ENABLE line. If the CARRY-IN input is held low, the counter advances up or down on each positive-going clock transition. Synchronous cascading is accomplished by connecting all clock inputs in parallel and connecting the CARRY-OUT of a less significant stage to the CARRYIN of a more significant stage.
SL4516B Datasheet
