Yes, this is typical for "1 chip" 16x1 line displays.  To get it to be
contiguous would require another 'chip' which adds cost.

They do exist.  The first ones I bought many many years ago were two chip,
16x1 line displays.  It really confused me when I bought other 16x1 LCD's
later and they didn't work the same!

Dave

>>The DDRAM addresses are non-contiguous across the 16 char display that I
>>have.  They go 00, 01, ... 07, 40, 41, ... 47 hex.  for the 16 positions.  I
>>have also seen a similar layout for 20C x 1L display.
>>
>>Is this *aways* the layout for single line displays?  What they appear to be
>>doing is concatenating the second line with the first line because with
>>multi-line displays the second line starts with address 0x40.

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