Attention to Internet Explorer users: ROHM website does not recommend browsing in IE 11. Please use latest browser to ensure the best performance on ROHM website.
In CMOS output type reset ICs, the output MOS transistor at the power supply side is Pch MOS, and at the ground side it's Nch MOS, meaning that the 'L' output voltage utilizes Nch operation and the 'H' output voltage Pch.