ICM7217 August 1997 4-Digit LED Display, Programmable Up/Down Counter Features Description • Four Decade, Presettable Up-Down Counter with Parallel Zero Detect • Settable Register with Contents Continuously Compared to Counter • Directly Drives Multiplexed 7 Segment Common Anode or Common Cathode LED Displays • On-Board Multiplex Scan Oscillator • Schmitt Trigger On Count Input • TTL Compatible BCD I/O Port, Carry/Borrow, Equal, and Zero Outputs • Display Blank Control for Lower Power Operation; Quiescent Power Dissipation 5mW • All Terminals Fully Protected Against Static Discharge • Single 5V Supply Operation The ICM7217 is a four digit, presettable up/down counter with an onboard p...

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