TSC371

The TSC371 is a master-slave decade counter that generates BCD outputs. It also provides two clock inputs to facilitate input enable control, direct set and reset inputs, and a ninth count output {carry output} so 371 cascades can generate counts of 100, 1,000, and so forth. Its output: are ideal as inputs to the 380, 381, or 382 BCD to decimal decoders. The 372 master-slave counter generates 4-bit binary outputs from 0 to 15 in the standard binary code, TSC371 also provides two clock inputs to facilitate input enable control, direct set and reset inputs, and a 15th oount output {carry output} to allow cascading to binary stages.

The features of TSC371 can be summarized as (1)direct preset or reset to zero; (2)two clock lines facilitate input enable; (3)ninth count and 15th count (372) outputs for cascading; (4)1 MHz typical toggle rate.

The TSC371 counts as the clock goes from high to low. Setting or resetting must be done only with th clock line low. To set, or to reset the device to zero, the desired set or reset line is switched inght. The court operation is inhibited by grounding either clock input, allowing one clock input to be an enable contraol. All unused direct set and reset pins should be grounded. Except for thr different interal gating. To provide hexadecimal counting. The operation of 372 is the same as one of 371.