SN74LS168 - BCD DECADE 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS
The SN54/74LS168 uses edge-triggered D-type flip-flops that 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 set-up time before the rising edge of the clock and remain
SN74LS168 BCD DECADE 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS The SN54 / 74LS168 is a fully synchronous 4-stage up/down counter featuring a preset capability for programmable operation, carry lookahead for easy cascading and a U / D input to control the direction of counting.
The SN54/ 74LS168 counts in a BCD decade (8, 4, 2, 1) sequence.
All state changes, whether in counting or parallel loading, are initiated by the LOW-to-HIGH transition of the clock.
Low Power Dissipation 100
SN74LS168 Features
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