TC4017BP

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).

TC4017BP/BF is decimal Johnson counter consisting of 5 stage D-type flip-flop equipped with the decoder to convert the output to decimal.

Depending on the number of count pulses fed to CLOCK or LOCK INHIBIT one output among 10 output lines "Q0" through "Q9" becomes "H" level.

The counter advances its state at rising edge of CLOCK (CLOCK INHIBIT = "L") or falling edge of CLOCK INHIBIT (CLOCK = "H"). RESET input to "H" level resets the counter to Q0 = "H" and Q1 through Q9 = "L" regardless of CLOCK and CLOCK INHIBIT.