On Saturday, June 2, 2012 2:46:37 AM UTC-7, N_Cook wrote:
A very useful cheap and cheerful IR remote control is let down by somewhat
inadequate memory.
http://www.amazon.co.uk/
7dayshop-Universal-Control-Learning-Function/dp/B0043VTRAQ

it uses a 24LC32B

But, that's not the memory; that's the NONVOLATILE memory, possibly with
some on-chip FLASH ROM. To run six devices (be generous, eight device
codes), with a generous number of buttons (30? 50?) each taking an eight-bit
data value, is still only 400 bytes. Digit codes are regular enough that
they can be compressed into a rule, and macros can be reused...

If one exercises a small amount of cleverness, 32k bits (about 4100 bytes) should
be enough to store device and key assignments. With larger amounts of cleverness,
it's a GENEROUS amount of memory.