Re: HP-32SII SCHEMATIC / PROCESSOR DATASHEET Message #2 Posted by Eric Smith on 26 Oct 2006, 2:46 p.m., in response to message #1 by Eric Sherriff
There isn't a publicly available datasheet for the chip, nor is one available from NEC. It is an ASIC that was made under contract to HP. The HP part number is 1LR3-xxxx (numeric suffix unknown), is called a Sacajawea, and contains a Saturn CPU core, 16KB of ROM, 512 bytes of RAM, and an LCD driver.
The same chip with different ROM code was used in the 14B, 22S, and 32S.
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