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OKI semiconductorMSM28101AASJAPANESE-CHARACTER GENERATING 1M BIT MASK ROM (E3-S-032-32lGENERAL DESCRIPTIONThe MSM 28101 AAS is aIM Bit Mask ROM using the N-channel silicon gate MOS process which stores 3,760 charactersof numeric characters, Japanese cursive and square syllabarys, JIS 1st standard Japanese-characters, etc., in onechip.Because of its large capacity, Japanese-character pattern of 3,760 characters can be generated with only one chip.Furthermore, since the dot matrix character form of 18 lines x 16 strings is available from the data out pin by onlyinputting the J IS Japanese-character code into the address pin, the MSM28101 AAS is efficient and optimum forconstituting the Japanese-character terminal.The power supply voltage is of 5 V single power supply, the input level is of TTL compatible, the data output is of3-state output, the data valid is the output of the open collector and is packaged on the 40-pin DIP.FEATURES• Function 18 x 16 chinese-character fontoutput• Configuration Duplex configuration of cellarrayusing the defect permissibletechnique• Storage capacity 1082880 Bits• Number of 3,418 charactersgeneratingcharacters• Storagecharacter range• Address input• Data output• Output mode• Address enablePartition 0 - 7 and partition16 - 47 of Japanese-charactercode system for JIS informationprocessing14 Bits (A.-Au)16Bits (D.-D 15 ,3-state)16 Bits x 18 times transfer1 each (AE)• Data valid• Clock• Used temperature• Access time• Data transferrate• Interface• Power supplyvoltage• Power consumption• Package• Memory cell1 each (DV, open collector output)1 each (T) DC - 1.5MHzTa ~ 0 - 70°C10 IJS MAX22 IJs/characterTTL level5V single power supply (±5%)700 mWTYPSide-brazed 40-pin DIPMulti-gate ROMThis specification is subject to change without notice(Top View)PIN CONFIGURATIONAo"'A13: Addroess inputDo ...... ~: Data outputAE: Address enableDV: Data valid outputT: Clock inputVCC: Power supply voltage (5V)VSS: GND (OV)(Note) Connect all VCC and VSS terminals.346