Dynamic Shift Registers - Bitsavers - Trailing-Edge

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ROM Code ConvertersMM4220BM/MM5220BM sine look-up tablegeneral descriptionThe MM4220BM/MM5220BM is a 1024-monolithicMaS read only memory that has beenprogrammed to solve for the sine value x of aknown angle 8; i.e., to obtain the solution of theequation x = sin 8.Values of 8 are defined in the look up table for0° ~ 8 < 90° (quadrant I) which has correspondingsolutions of 0 ~ x < 1. For values of90° < 8 < 180° (quadrant II), enter the complement(180° - 8) to obtain the correct solution.Solutions for quadrants III and I V differ in signwith I and II. This is summarized in Table 1.This input is divided into 128 parts for 8 in eachquadrant. Thus, the appropriate input address is(8 1 /90°)(128) to the nearest whole integer. Theactual input code to the ROM is the input addressexpressed in binary, with A1 being the mostsignificant bit.The output is the value of X expressed in binary.The output lines B 1 , B2 , ..... B8 are binary placevalues 1/2, 1/4, ...... 1/256. The sign for negativevalues of X is externally generated.The 8 bit output code has been rounded off froma larger word code, i.e., where Ag was a binary"1" it carried into the LSB of the eight bit code,where Ag was a binary "0" it was simply dropped.EXAMPLEFind the sine of 45~The input address is (45/90) 128 = 64 or1000000, as expressed in binary. The convertergenerates the output .10110101 whose decimalequivalent is 0.707131. Thus, sin 45° = 0.707.Find the sine of 210~This value is in quadrant III; therefore 8 1 = 210° -180° = 30°. The input address is then (30/90)128 == 43 to the nearest whole integer. The binaryinput to the ROM is then 0101011. The outputvalue is .10000001 or 0.503906. Thus, sin 210° =-0.504, with the sign generated by the externallogic. The solution is within 1 %; note that address43 is actually equal to 30.23°.device characteristicsFor full electrical, environmental and mechanicaldetails refer to the MM4220/MM5220 1024-bit readonly memory data sheet.typical application-I1V----__________ .-..... --,VooA,24 VooA, B,6.BI
pattern selection form",'", '" '"'1--' "a'"g,'50'"" ",'"~,,,,,,154, ,,,"16.17 ,,,r-------;";'"'"-~ ----;-~:~: '"'",eo1--- '""'"'"f---%::--- _._ 27,42 ",SO,f--::-_._'JJ,7~515'60","" 550'"'"41.48-------c"-- '---,iH:- -~ ," '"Baa, a,f--'-.a5 B, a, a, a,.. ,"""a_. 5062""""""'"'"'"CODEaa B, B, B5 B, B, B, B,,-+-f-i-49.92 ,51,3352,0354,8455,55m'"'"'"1.00658.36 \,0195906'.043\,0551.06861.67 1.08062.5850 1.1041.117"1,1541.16667.5068.2066.9169611.227W, 1.239'" 72.4273.12'"''"'"'"'"'"77.34'"78 0578.7579,45'"80.86 ,'" -~81.56 ,on f12.2782.9784.3885,08'"'" 152288,5989.301534~-P,= --'-i-connection diagramTable 1. SINEA,- ,B,- 524 _Voo23 _ N.C.22 - N.C.20 -AsQuadrantIIIIIIVINPUTOUTPUTRange Entry to ROM (0' ) Binary Value Sign::,. 0 0 < 90 0 Direct Direct Reading +> 90' < 180' 180 0 - X Direct Reading> 180' < 270' X - 180 0 Direct Reading> 270 0
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National Semiconductor CorporationM
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IntroductionHere is National's newe
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RAMsMM1101 256-Bit Fully Decoded St
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MOS Selection GuidePRODUCT TYPE NO.
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The five basic elements are interco
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absolute maximum ratingsVoltage at
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timing diagramsSequence of Command
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programming of MM5704 (can't)o coun
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......tnG)G)(I)0010:E:E......00..:E
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Dynamic Shift Registers~~ MM1402A/M
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performance characteristics! 100,.J
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«o ....oLC'):E:E.......«.... oo-.
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Dynamic Shift Registers.....enoLn:?
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performance characteristicsN~ '"> u
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logic table (Notes 3,4)MOOEREGISTER
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Dynamic Shift RegistersMM4015A/MM50
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performance characteristics~~>...zw
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.... co0LC):E:E........CO....0~:E:E
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Dynamic Shift RegistersMM4017/MM501
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perform ance ch a racteristicslOOkN
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performance characteristics!ji,:Ii'
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absolute maximum ratingsGate Voltag
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performance c ha racte risticsac te
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absolute maximum ratingsDrain Volta
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Static Shift RegistersMM4040/MM5040
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guaranteed performance characterist
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Static Shift RegistersMM4052/MM5052
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guaranteed performance characterist
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MM4203/MM5203 electrically programm
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operating characteristics (con'tl f
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ROMsMM4210/MM5210 1024-bit read onl
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performance characteristicsGuarante
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ROMsMM42111MM52111024-bit read only
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performance characteristicsPower Su
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MM4220/ MM5220 1024-bit read only m
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ROMsMM42211MM52211024-bit read only
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performance characteristicsPower Su
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illSROMsMM4230/MM5230 2048-bit read
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~12V-----_""' _____________ROMsMM42
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ROMsMM4232/MM5232 4096 -bit static
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ROMsMM4240/MM5240 2560-bit static c
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performance characteristics1200Guar
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ROMsMM42411MM5241 3072-bit static r
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performance characteristicsTypical
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RAMsMM1101/MM11011/MM1101A/MM1101A1
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performance curves (MM1101A/MM1101A
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RAMsMM1103 1024-bit fully decodeddy
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ac operating characteristics (con't
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absolute maximum ratingsAll I nput
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MH0007/MH0007C dc coupled MOS clock
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Clock DriversMH0009/MH0009C dc coup
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MH0012/MH0012C high speed MOS clock
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MH0013/MH0013C two phase MOS clock
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typical performance (cont.)FIGURE 4
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MH0025/MH0025C two phase MOS clock
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applications informationCircuit Ope
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absolute maximum ratings (Notes 1 &
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typical applicationsIfOP~T"IfOPUT"D
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application information (con't)The
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Page 151 and 152: ininin::?i::?iabsolute maximum rati
Page 153 and 154: typical input capacitancesMM450, MM
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Page 163 and 164: TtilQ)'a::Q)enoCD....o:I:«oIt)....
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Page 171 and 172: schematic diagramanalog switch data
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Page 175 and 176: (.)0')-ooJ:Z........0')-ooJ:Z(.)"d'
Page 177 and 178: absolute maximum ratingsSupply Volt
Page 179 and 180: MM482/MM582Voltage Transfer Charact
Page 182 and 183: ROM Character GeneratorsMM4220N P/M
Page 184 and 185: ROM Character GeneratorsMM4240ABU/M
Page 186 and 187: ROM Character GeneratorsMM4240ABZ/M
Page 188 and 189: ROM Code Convertersrn"owSK0003 sine
Page 190 and 191: ROM Code Converte rsMM4220AE/MM5220
Page 192 and 193: ROM Code ConvertersMM4220AP/MM5220A
Page 194 and 195: ROM Code ConvertersMM4220BL/MM5220B
Page 198 and 199: ROM Code ConvertersMM4220BN/MM5220B
Page 200 and 201: MM4220DF/MM5220DF"quick brown fox"
Page 202 and 203: ROM Code ConvertersMM4220EK/MM5220E
Page 204 and 205: MM4220LR/MM5220LR BCOIC to ASCII-7/
Page 206 and 207: ROM Code ConvertersMM4221RO/MM5221R
Page 208 and 209: ROM Code ConvertersMM4221RR/MM5221R
Page 210 and 211: 11151 ROM Code ConvertersM M 42 30
Page 212 and 213: code conversion table-selectric-to-
Page 214 and 215: ROM Code ConvertersMM4230JT /MM5230
Page 216 and 217: ROM Code ConvertersMM4230KP/MM5230K
Page 218: ~BlillSROM Code ConvertersMM42300W/
Page 221 and 222: ROM Code ConvertersMM4230QY/MM5230Q
Page 223 and 224: ROM Code ConvertersMM4230RS/MM5230R
Page 225 and 226: A.a:-MNit)~~.......A.a:ROM Code Con
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Page 229 and 230: «0000~.....~c.......«0000~Ln~Ctru
Page 231 and 232: ROM Code ConvertersDM7598AA/DM8598A
Page 234 and 235: Custom MOS/LSIo...ct/)o3s:o(J).....
Page 236: All designs are verified with a cir
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...(1)Q)....(1).-0>Q)a:........s::.
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BriefsJANUARY 1970...aTRIG FUNCTION
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MASK PROGRAMMING SPECIALIZESMOS SHI
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ORDERING INFORMATIONWhen ordering,
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Clock Repetition Rate: The range of
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National Semiconductor Corporation2
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