mitsubishi - Al Kossow's Bitsavers

MITSUBISHI MICROCOMPUTERSMS0780SP/MS0781SPMS0782SP/MS0783SPINPUT/OUTPUT EXPANDERDESCRIPTIONThese devices, fabricated using the aluminum gate CMOSprocess and used for input/output port e~pansion, are idealLSls for connection to the single-chip 4-bit microcomputerseries.The M50780SP and M50782SP are housed in a 40-pinplastic mold D I L package wh ile the M50781 SP andM50783SP are housed in a 28-pin plastic mold DILpackage.FEATURES• Wide operating voltage range. . . . . . . . . . .. 3 ~ 14V• Low power dissipation• Interchangeable with TI's TMS1025C and TMS1024C interms of pin connections and electrical characteristics(M50780SP and M50781SP)APPLICATIONI/O expansion for the single-chip microcomputer seriesFUNCTIONM50780SP, M50781 SP, M50782SP and M50783SP areconfigured with 4 or 7 groups of input/output ports, 1group of input/output ports, a port selector circuit andmode control circuit, and operation is possible. in the latchor multiplexer mode.Table 1 ConfigurationsExpander Outline CE pin Requirements for resetCompatibleexpandersMS0780SP 40-pinSO-S2 = low TMS102SCCEMS0781SP 28-pin STD = (t) ,TMS1024CMS0782SP 40-pinSO-S2= lowCEMS0783SP 28-pin STD = highPIN CONFIGURATIONS (TOP VIEW)VooINPUT/OUTPUT { Rz ....PORT R R3_(Note 1)CHIP ENABLE INPUT CE - + 4MODE SELECT INPUT M5 -+STROBE 1~~0~ 5TD-+INPUT/{ :;~: :OUTPUTPORT 1 P 1z .... 9P13 .... 10INPUT/{::~: :~~~~~U~ P4Z _ 13. P43 .... 14INPUT/{ ::~: ::~~~TU~ P 2 .-. 17P53·+ 18INPUT/{PZO.-+ 190p~T:~i P Z1 _ 20 --,, _____ ....r-Note 1: M50782SP has a CE pin.VooINPUT/{ROUTPUT 2_ 2PORT R R 3_ 3(Note 2)CHIP ENABLE INPUTCE-+ 4MODE SELECT INPUTM5-+ 5STRO~~~;;~{S:;::~ ~P43 .... 10INPUT/{::~.: :~Outline 40P4B28 _R1}INPUTI27 _ R 0 ~~~~U~Vss25 +-- 5Z} INPUT20 +-- 51 SELECT23 +-- 50 PORT:: : :::} INPUT/20 .... P71 ~~~~UJ19 .... P70:: ::::}INPUTI~~~~U~ P5Z- 13 16 -P61 ~~~~U~P53 - .... 14-L.._---,. __ ~--"'5 -P60Outline 28P4BIINote 2: M50783SP has a CE pin.• MITSUBISHI.... ELECTRIC·6-3