Model 102 RAM

Original RAM: NEC uPD4364C-20L

Replacement, Any D4364C-##L or -##LL:

You don't want "CX" or "G" in place of the "C"

The original "-20L" part was the slowest they ever made (200ns)

The ones you find easier now are all faster, which is fine. (-15/12/10 = 150/120/100 ns)

The "L" is low power. "LL" is even better, even lower power (standby memory battery lasts longer)

General specs:

• Static Ram (no clock)
• CMOS
• 8Kx8
• DIP28 (plastic 600 mil dip)
• 2764 eprom compatible
• 200ns or faster
• Low power or extra low power (L or LL)
• TTL

Examples:

NEC uPD4364C-##LL

Hitachi HM6264ALP-##L

Sony CXK5864BP-##L

SRM2264LC##

(## = any number)