Dynamic Shift Registers - Bitsavers - Trailing-Edge

ROM Code ConvertersMM4221RR/MM5221RR ASCII-7 to EBCDIC code convertergeneral descriptionThe MM4221RR/MM5221RR is a 1024-bit readonlymemory that has been programmed. to convertbetween the 128 characters of ASCII-7" theAmerican Standard Code for I nformation I nterchangein seven bits, and EBCDIC, an extendedbinary coded decimal interchange code. This conversionfollows the EBCDIC character assignmentsused in the IBM 1130 computer.Certain arbitrary assignments have also been madefor maximum usefulness, and in these two areasthe part differs from the MM42300Y /MM52300Y,which follows American National Standard ANSIX3.26 recommendations for character assignments.For electrical, environmental and mechanical details,refer to the MM4221/MM5221 data sheet.typical applicationASCII-7 to EBCDICMS. b,ASCII-718A,+5V12,16.,~'~'__ ~ ______________________ ~.-~19b, A,b520A521b, A,b, A,MM4221RRIMM5221RR• ,~'~O ______________________ ~,-__ r-~EBCDICBINARYHIGH TRUEOMS •.,~------------------~,---r---r-~B5~--------------~'---r---r---r-~.,~----------~~--~--~--~--~~b, A,lS. b, A,lSBlOWTRUE15,11,24S.8K 6.aK 6.BK S.aK 6.BK 6.BK 6.aK 6.aK-12V199