Contextual Info: RICOH CORP/ ELECTRONIC 54E D • 7 7 4 4 ^ 0 DGGSGbS 53b ■ PCH I3~I5~ EK-060-9111 CMOS 256kbit MASK ROM 32,768 word x 8 bit R P /R S 5 3 2 5 6 E ■ PIN CONFIGURATION (TOP VIEW) RP/RS53256E is a CMOS Read Only Memory or­ NC ¡T 2^ V cc [2 27| Ai< from a single 5V supply. The supply current is