Dear Friends,
I have been using ADM1232 and DS1232 in my cuircuits as supervisor IC's in my AT89C52 and AT89S52 designs. This supervisor used to serve the purpose of power on reset + Brown out prtorector + WDT in case of my AT89C52 circuits. In AT89S52 WDT feature was built in so I used ADM1232 for purpose of brown out protection + Power on reset.
Recently I have purchased 3 P89V51RD2FA for trial purpose. I have read the datasheet carefully and it says the device has in built WDT and brown out protection both. Now is there any job left for my old ADM1232 supervisor. If I don't use a supervisor what device should be used to provide power on reset. Should I use the old RC style reset which I used in my early days with micros. My designs are meant for industrial automation and are not for playing or having fun with. Kidnly give me your usefull suggestion in choosing a proper power on reset device.

Regards,
Prahlad Purohit