Is this typical?  Just ran into this today.

I'm writing to a 93LC46A (microchip brand) serial EEprom.

After writing a byte to an address, then issuing a EWDS (erase/write
disable), if I immediately
try and read the same address (I waited 38 usec) I don't get the byte back.

If I wait a while (tried 10msec) after issuing the EWDS command, the byte
is read back properly.

Note that when I write the byte, I wait until the BUSY status is high
before issuing the EWDS command.

The Microchip data sheet says I only need to wait a minimum of 250ns after
issuing a
EWDS command.  Only ERAL and WRAL take longer (6 - 15ms).

This screwed me up for a while! (looked fine until the read on the logic
analyzer!)

Dave