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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 presettable register continuously compared to the counter.