TC4520BP

Note: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even destruction. Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings and the operating ranges. Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook ("Handling Precautions"/"Derating Concept and Methods") and individual reliability data (i.e. reliability test report and estimated failure rate, etc).

TC4520BP is up counters of 4 bit binary.

Since both of TC4520BP contain two independent circuits of counters with the same functions in one package, counting or frequency division of two BCD digits or eight binary bits can be ac ived with one IC. The counters can be reset to "0" (Q0~Q3 = "L") by giving "H" level signal to RESET input regardless of other inputs.

The counting condition of TC4520BP is changed by the rising edge of CLOCK
input if ENABLE = "H" or by the falling edge of ENABLE if
CLOCK = "L".