MC74F168 ttl equivalent, (mc74f168 / mc74f169) 4-stage synchronous bidirectional counters fast schottky ttl.
The F168 and F169 use edge-triggered J-K type flip-flops and have no constraints on changing the control or data input signals in either state of the clock. The only requirement is that the various inputs attain the desired state at least a setup tim.
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