HP Laserjet ..again....

[Jim Isbell]

Sure the buss width matters if you are measuring memory as it is NORMALY 
measured, in Bytes, not Bits.

Tony Duell wrote:

>>As I stated earlier, I have cannibalized three HP laserjet series II 
>>printers.  In looking over the parts recovered I find that I have three 
>>(3) totally different memory boards.  
>>
>>The first is populated with small chips on BOTH sides of the board with 
>>a total of 128 soldered in chips that appear from their part numbers to 
>>be 256K memory chips,  That is the number 256 appears within the part 
>>number.  Now I don't know how wide the buss is but I am assuming 8 bits 
>>because of its age.  If so this board is a 4 Megabyte  memory board.
>>    
>>
>
>The bus width doesn't matter in determining the memory size. If you had 
>16 1  megabit memory chips arranged as 2 megs * 8 bits, that a 2 megabyte 
>board. If you had them arrangeded as 1 meg * 16 bits, that's still a 2 
>megabyte board.
>
>The Series 2 formatters use a 68000 processor (the 64 pin chip on the 
>formatter board) and thus have a 16 bit wide databus.
>
>-tony
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