The CD4033B consists of a 5-stage Johnson decade counter and an output decoder that converts the Johnson code to a 7-segment decoded output for driving one stage in a numerical display. The 7-segment outputs go high on selection. The CARRY-OUT signal completes one cycle every ten CLOCK INPUT cycles, enabling multi-decade counting. Features ripple blanking for leading zero suppression.
The 7-segment outputs are always active when selected. Ripple blanking allows suppression of leading zeros in multi-digit displays. Lamp test function illuminates all segments for testing.