Datasheet Intersil ICM7216A

ICM7216A, ICM7216B
ICM7216D S E M I C O N D U C T O R 8-Digit Multi-Function
Frequency Counter/Timer December 1993 Features All Versions
• Functions as a Frequency Counter (DC to 10MHz)
• Four Internal Gate Times: 0.01s, 0.1s, 1s, 10s in
Frequency Counter Mode
• Directly Drives Digits and Segments of Large Multiplexed LED Displays (Common Anode and Common
Cathode Versions)
• Single Nominal 5V Supply Required
• Highly Stable Oscillator, Uses 1MHz or 10MHz Crystal The ICM7216A and ICM7216B are fully integrated Timer
Counters with LED display drivers. They combine a high
frequency oscillator, a decade timebase counter, an
8-decade data counter and latches, a 7-segment decoder,
digit multiplexers and 8 segment and 8 digit drivers which
directly drive large multiplexed LED displays. The counter
inputs have a maximum frequency of 10MHz in frequency
and unit counter modes and 2MHz in the other modes. Both
inputs are digital inputs. In many applications, amplification
and level shifting will be required to obtain proper digital
signals for these inputs. • Functions Also as a Period Counter, Unit Counter,
Frequency Ratio Counter or Time Interval Counter The ICM7216A and ICM7216B can function as a frequency
counter, period counter, frequency ratio (fA/fB) counter, time
interval counter or as a totalizing counter. The counter uses …