STM6905 RST output

[aleblancnuv]

The STM6905 datasheet says in Table 2 that there is an internal 10k pull-up on RST#, which seems wrong since that's an open-drain output. Then in Section 2.6 and in Section 3 it says that an external pull-up to VCC should be used.

[Peter BENSCH]

Welcome @aleblancnuv, to the community!

The STM6905 was launched in 2007. The data sheet was last updated in 2014 – but nobody had actually spotted the typo until now! Thank you for your keen observation and for bringing this to our attention!

But to summarise once again: there is a pull-up resistor only on the /MR input, but not on the /RST open-drain output.

Regards
/Peter

[aleblancnuv]

@Peter BENSCH, can the /RST pin have a pull-up to supply that's present while the VCC the device is unpowered? Typically that's OK for open-drain outputs, but the datasheet shows a max input/output voltage of -0.3 to VCC+0.3, which is odd.