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ICM7226 - 8-Digit Multi-Function Frequency Counter/Timer

General Description

The ICM7226 is a fully integrated Universal Counter and LED display driver.

It combines a high frequency oscillator, a decade timebase counter, an 8-decade data counter and latches, a 7-segment decoder, digit multiplexer and segment and digit drivers which can directly drive large LED displays.

Key Features

  • CMOS Design for Very Low Power.
  • Output Drivers Directly Drive Both Digits and Segments of Large 8-Digit LED Displays.
  • Measures Frequencies from DC to 10MHz; Periods from 0.5µs to 10s.
  • Stable High Frequency Oscillator uses either 1MHz or 10MHz Crystal.
  • Both Common Anode and Common Cathode Available.
  • Control Signals Available for External Systems Interfacing.
  • Multiplexed BCD Outputs.

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Other Datasheets by Intersil (now Renesas)

Part Number Description
ICM7226A Frequency Counter/Timer
ICM7226B Frequency Counter/Timer
ICM7224 41/2 Digit LCD Display Counter
ICM7228 8-Digit / Microprocessor- Compatible / LED Display Decoder Driver
ICM7206 CMOS Touch Tone Encoder

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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ICM7226A, ICM7226B August 1997 8-Digit, Multi-Function, Frequency Counter/Timer Description The ICM7226 is a fully integrated Universal Counter and LED display driver. It combines a high frequency oscillator, a decade timebase counter, an 8-decade data counter and latches, a 7-segment decoder, digit multiplexer and segment and digit drivers which can directly drive large LED displays. The counter inputs accept 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.