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Details, datasheet, quote on part number:KU80486SXSA-25
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Datasheet text preview:
KU80486SXSA-25(1/ 2)
***** MICROPROCESSOR
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IL16 (VDD = +5V) PIN NO. I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O SIGNAL GND A21 A22 A23 A24 VDD A25 A26 A27 A28 GND A29 A30 A31 NC DP0 D0 D1 VDD D2 GND GND D3 VDD D4 D5 D6 VDD D7 DP1 D8 D9 GND NC D10 VDD D11 D12 D13 GND PIN NO. 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I I O SIGNAL D14 D15 DP2 D16 D17 D18 D19 D20 VDD GND D21 NC D22 VDD D23 NC DP3 GND D24 NC D25 VDD D26 NC D27 GND D28 NC D29 VDD D30 NC NC D31 STPCLK NC IGNNE NC NC TDO PIN NO. 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 I/O O I O I I I I I I I O O O O O O O O O O SIGNAL FERR NC NC VDD SMI GND NC NC NC NC NC SMIACT VDD SRESET GND GND NC VDD GND NMI INTR FLUSH RESET A20M EADS PCD VDD PWT GND D/C M/IO VDD BE3 GND BE2 BE1 BE0 BREQ VDD W/R PIN NO. 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 I/O O I I I I I I I I I I O O O O O O O I/O I/O I I/O I/O SIGNAL GND HLDA CLK NC VDD GND NC TCK AHOLD HOLD VDD KEN RDY NC BS8 BS16 BOFF BRDY PCHK NC GND LOCK PLOCK BLAST ADS A2 VDD GND NC A3 NC A4 NC A5 NC UP NC A6 A7 NC PIN NO. 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I I I/O I/O I/O SIGNAL A8 NC A9 VDD A10 NC GND GND NC VDD NC A11 NC A12 VDD A13 GND A14 VDD A15 A16 GND A17 VDD TDI NC TMS NC A18 NC A19 NC A20 GND NC VDD
147
145
140
135
130
125
120
105
115
110
99
148 150
GND NC NC NC NC NC
VDD NC GND GND VDD NC NC NC NC NC GND VDD NC NC NC NC NC
98 95
155
90
160
NC NC V DD
85
165
170
NC GND GND NC V DD NC NC V DD GND V DD GND
80
75 NC NC VDD NC GND NC VDD NC GND NC VDD NC GND 55 60 65 70
175
180
185
V DD NC NC
190
NC NC GND NC V DD
GND
GND GND
GND NC
GND
GND
VDD
VDD
15
VDD
VDD
NC
40
45
10
20
25
30
35
49
1
5
VDD
VDD
196
50
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
GND NC
NC GND VDD NC
GND
GND
GND
GND
VDD
VDD
VDD
VDD
VDD
NC
KU80486SXSA-25(2/2) 64-BIT INTERUNIT TRANSFER BUS 32-BIT DATA BUS 32-BIT DATA BUS LINEAR ADDRESS 32 32 32 PCD,PWT B A RRE L SHIFTER REGISTERS FILE 32 ALU BASE/ INDEX B US SEGMENTATION UNIT PAGING UNIT DESCRIPTOR REGISTERS LIMIT and ATTRIBUTE PLA TRANSLATION LOOKASIDE BUFFER 2 20 PHYSICAL ADDRESS CACHE UNIT 8k BYTE or 16k BYTE CACHE 32 BUS INTERFACE ADDRESS DRIVERS WRITE BUFFERS 4 x 32 DATA BUS TRANSCEIVERS BUS CONTROL 146,150,152,154,158,159, 161,163,165,172,174,176, 180,181,183,189,191,193, 2-5,7-10,12-14,117-115,113 A2-31 BE0-3 17,18,20,23,25-27, 29,31,32,35,37-39, 41,42,44-48,51, 53,55,59,61,63, 65,67,69,71,74 D0-31 CORE CLOCK CLKMUL INPUT A20M B AHOLD BOFF BRDY CS8,BS16 E LK F ADS HLUSH I OLD IGNNE K TR N NEN RMI RDY S ESET SMI SRESET T TPCLK TCK TDI UMS P OUTPUT A2,3 BDS BE0-3 BLAST DREQ F /C HERR L LDA M CK O P /IO PCHK PCD PLOCK SWT T MIACT WO D /R
CLOCK MULTIPLIER
123
CLK
32
32
128
DISPLACEMENT BUS MICROINSTRUCTION PREFETCHER 32 REQUEST SEQUENCER 32 BYTE CODE QUEUE
145,120,110,111, 106,108,133, 142,143,137, 104,118,130, 122,103,94, ADS W/R D/C M/IO 101,100,85, PCD PWT RDY 92,81,77,75 LOCK PLOCK BOFF A20M BREQ HOLD HLDA RESET SRESET INTR NMI SMI SMIACT FERR* IGNNE* STPCLK 138,144
;ADDRESS BIT 20 MASK ;ADDRESS HOLD ;BACKOFF ;BURST READY ;BUS SIZE CONTROL ;CLOCK ;VALID EXTERNAL ADDRESS ;CACHE FLUSH ;BUS HOLD REQUEST ;IGNORE NUMERIC ERROR ;MASKABLE INTERRUPT ;CACHE ENABLE ;NON-MASKABLE INTERRUPT ;NON-BURST READY ;RESET ;SYSTEM MANAGEMENT INTERRUPT ;SRESET ;STOP CLOCK REQUEST ;TEST CLOCK ;TEST DATA ;TEST MODE SELECT ;UPGRADE PRESENT
FLOATING POINT UNIT
CONTROL and PROTECTION TEST UNIT
INSTRUCTION DECODE
CODE STREAM 24
2 x 16 BYTES
BURST BUS CONTROL BUS SIZE CONTROL 136,135
BRDY BLAST
FLOATING POINT REGISTER FILE *
CONTROL ROM
DECODED INSTRUCTION PATH
BS16 BS8 132,102, 129,105 KEN FLUSH AHOLD EADS CACHE HITM INV WB/WT 139, 16,30,43,57 PCHK DP0-3
CATCH CONTROL
NOTES: * Available on Intel486 TM DX,IntelDX2 TM and IntelDX4 TM processors. ** Available on Intel486 processors except 168-pin PGA Intel486SX processors. Available only on the IntelDX4 processor. Available only on the Write-Back Enhanced IntelDX2 processor.
PARITY GENERATION and CONTROL
;ADDRESS LINES ;ADDRESS STATUS ;BYTE ENABLE ;BURST LAST ;BUS REQUEST ;DATA/CONTROL ;FLOATING POINT ERROR ;HOLD ACKNOWLEDGE ;BUS LOCK ;MEMORY/INPUT-OUTPUT ;PARITY STATUS ;PAGE CACHE DISABLE ;PSEUDO-LOCK ;PAGE WRITE-THROUGH ;SYSTEM MANAGEMENT INTERRUPT ACTIVE ;TEST DATA ;WRITE/READ
128,187, 185,80 BOUNDARY SCAN CONTROL TCK TMS TDI TDO **
INPUT/OUTPUT ;ADDRESS LINES D A4-31 ;DATA LINES D0-31 ;DATA PARITY P0-3
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