MEMORY DATABOOK - Al Kossow's Bitsavers

-----------------------. APPLICATIONS.2. MSM38256 SE R I ES2·1 15 x 16 Font(1) Model namesMSM3B256-19-22 (four codes); JIS standard No.1 (2,965 characters) + Non-kanji (524 characters)MSM3B256-32-35 (four codes); JIS standard No.2 (3,384 characters)These models are similar in electrical characteristics to the MSM3B256 mask ROM. The CS and OE signals are activelow.(2) Split character patterns, and their storage• Split character patterns• 1•••• The character patterns are standard OK Icharacter patterns .• Each character consists of two chips.• Character data is generated at high level, andbackground data i's generated at low level.• Character data is stored in a 16 x 16 dotpattern area, left-justified.• •• StorageI #3 #4 (K - 1024)• Each group of four chips forms one set tostore about 4K characters.#1 #2/2K characters/2K characte rs#1#2#3 #4J IS standard No.1MSM38256-19MSM3B256-20 MSM38256-21 MSM38256-22J IS standard No.2MSM38256-32MSM38256-33MSM38256-35[II459