MEMORY DATABOOK - Al Kossow's Bitsavers

OKI semiconductorMSC2304YSS/KSS262,144 BY 8 BIT DYNAMIC RAM MODULEGENERAL DESCRIPTIONThe Oki MSC2304YSS/KSS is a fully decoded, 262,144 words x S bit NMOS dynamic randomaccess memory composed of eight 256K DRAMs in plastic leaded chip carrier (MSM41256JS). Themounting of eight PLCCs together with eight 0.2/LF decoupling capacitors on a 30 pin glass epoxySingle-In-Line Package provides any application where high density and large capacity of storagememory are required. The electrical characteristics of the MSC2304 YSS/KSS are quite same as theoriginal MSM41256JS; each timing requirements are noncritical, and power supply tolerance is verywide.FEATURES• 262,144 word x S bit Organization• Single +5V Supply (1 0% Tolerance)• 30-Pin Socket Insertable Module• Refresh Period ... 4ms (256 cycles)• All Inputs, Outputs, ClocksFully TTL compatible• 3-States Outputs• Common CAS Control for Eight CommonData-In and Data-Out LinesFUNCTIONAL BLOCK DIAGRAM• Row Access Time;120ns max. (MSC2304-12YSS/KSS)150ns max:iMSC2304-15YSS/KSS)• Low Power Dissipation;30S0mW max. (MSC2304-12YSS/KSS)2860mW max. (MSC2304-15YS8/KS8)• Operating Temperature ... ODC to 70DCACt-AsRAS-=~~t===============~CAS --.-++---------"WE-"T-""I-++-----------,D02 -+-II-+-h-~OQ3OQ4 -----====:;~Vee ~~c~. :=r7:c.I~-----~Vss -"----I'-----4-_______-----...l245