ICM7224 Overview
The ICM7224 device is a high-performance, CMOS 41/2 digit counter, including decoder, output latch, display driver, count inhibit, leading zero blanking, and reset circuitry. The counter section provides direct static counting, guaranteed from DC to 15MHz, using a 5V ±10% supply over the operating temperature range. At normal ambient temperatures, the devices will typically count up to 25MHz.
ICM7224 Key Features
- High Frequency Counting
- Guaranteed 15MHz, Typically 25MHz at 5V
- Low Power Operation
- Typically Less Than 100µW Quiescent
- STORE and RESET Inputs Permit Operation as Frequency or Period Counter
- True COUNT INHIBIT Disables First Counter Stage
- CARRY Output for Cascading Four-Digit Blocks
- Schmitt-Trigger on the COUNT Input Allows Operation in Noisy Environments or with Slowly Changing Inputs
- Leading Zero Blanking INput and OUTput for Correct Leading Zero Blanking with Cascaded Devices
- Provides plete Onboard Oscillator and Divider Chain to Generate Backplane Frequency, or Backplane Driver May be Disabled
