For my application, I want the message (stored in the chip) to play from the start every time a switch is triggered (edge triggered). The /PLAYE can not be used since it will stop playback when the switch is triggered a second time when playback is in progress, instead it should start all over again from the beginning. Also the /PLAYL is not suitable since it should stay low until the mesage is played, and no new start can be invoked. Reading the datasheet for the ISD1620B, I think keeping the /PLAYL low will play the message until an EOM (end of message) is reached and enter low cunsumption. So I was thinking I could solve the problem using a normal closed switch on the /PLAYL instead of the normal open switch. Do I need an external resistor on the /PLAYL input to lower power consumption since the /PLAYL input is pulled up internaly (if so, which value)? Any suggestions?
Thanks