Modules for the 71B - how?

[Sylvain Cote]

Like the other mentioned before, acquiring a FRAM71 is the best option.

But if you want use the original modules, here is the list of the ones that was produced by CMT & HHP

Code:

RAM/EPROM/OTP Front Port (FP) & Card Reader (CR) Modules
CMT FP RAM......:     CMT-71-[32R;64R]
CMT FP EPROM....:     CMT-71-[32E;64E]
CMT FP OTP......:     CMT-71-[32K;64K]-OTP
CMT CR RAM......:     CMT-CR-[32R;64R;128R]
HHP CR RAM......: HHP-71-M/M-[32K;64K;96K;128K;160K]
HHP CR EPROM....: HHP-71-M/M-[32E]
HHP CR RAM/EPROM: HHP-71-M/M-[32K/32E;64K/32E]

The 71B can address 512KB of memory (all types combined).

Available space: 512KB (max addressing) - 64KB (OS ROMs) - 16KB (HP-IL ROM) - 20KB (base RAM) = 412 KB available for modules

Sample config 1: 128 KB (CMT-CR-128R RAM) + 256 KB (4 * CMT-71-64R RAM) = 384 KB -> 28KB left
Sample config 2: 160 KB (HHP-71-M/M-160K RAM) + 192 KB (3 * CMT-71-64R RAM) + 32 KB (CMT-71-32R RAM) = 384 KB -> 28KB left
Sample config 3: 160 KB (HHP-71-M/M-160K RAM) + 192 KB (3 * CMT-71-64R RAM) + 32 KB (MATH ROM 32KB) = 384 KB -> 28KB left
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