Has anyone used MM5290 dynamic RAMs?

[gcewing]

I'm working on a project to make use of some parts in my junk box, among them some MM5290 16kx1 dynamic RAMs.

This chip appears to be more or less identical to the TMS4116, except for one thing. The data sheet for the 4116 warns against applying +5V or +12V power without the -5V power being present, or the chip may be damaged.

But the datasheet for the 5290 contains no such warning. Does this mean the 5290 is immune to this problem? It would make things a lot simpler if I didn't have to worry about it.

Is there anyone out there with experience of using these chips who can comment?

For the curious:
https://hackaday.io/project/158777-bredsac

[amyk]

Datasheet says "Voltage on Any Pin Relative to Vbb -0.3V to +20V (Vss-Vbb >= 4.5V)" which suggests you do need the "back bias" voltage first.

This is enhancement-load NMOS. Power sequencing is -5, then +5, and finally +12 on startup, and the opposite order for shutdown. In practice this is usually accomplished by sizing the power supply decoupling appropriately.