Push-pull output saves a pull-up
Because the output is push-pull, the reset signal is actively driven high and low. That eliminates the external pull-up resistor required by open-drain supervisors, which simplifies the BOM and frees up one resistor placement per reset line. The active-low reset polarity is the standard for most MCUs and SoCs — the supervisor pulls the reset pin low during undervoltage and releases it high when the supply is stable and the timeout expires.
Active production, no obsolescence concern
The MAX6464UR23+T carries an active lifecycle status from Maxim Integrated (now part of Analog Devices). For new designs or ongoing production, there is no near-term obsolescence risk to plan around. The ROHS3 compliance is confirmed, so it passes European and global material-restriction requirements without an exemption.