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1. Description
The CD40193BCN up/down counter is monolithic complementary MOS (CMOS) integrated circuits. The CD40193BC is a binary counter. Counting up and counting down is performed by two count inputs, one being held HIGH while the other is clocked. The outputs change on the positive-going transition of this clock. These counters feature preset inputs that are enabled when load is a logical “0” and a clear which forces all outputs to “0” when it is at logical “1”. The counters also have carry and borrow outputs so that they can be cascaded using no external circuitry. All inputs are protected against damage due to static discharge by clamps to VDD and VSS
2. Features
1. Wide supply voltage range: 3V to 15V
2. High noise immunity: 0.45 VDD (typ.)
3. Low power TTL compatibility: Fan out of 2 driving 74L or 1 driving 74LS
4. Carry and borrow outputs for easy expansion to N-bit by cascading
5. Asynchronous clear
3. Connection Diagram
4. Cascading Packages
5. Block Diagram
6. Physical Dimensions
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