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File:Magic-sound-schematic2.gif|Schematic 2/2 (analog part)
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== Magic Sound Chipset ==
pcs russian western name description
1 KR1810WT37 8237 D5 DMA controller
2 KR1810WI54 8254 D3,D4 Programmable interval timer
1 K1118PA1 MC10318 D21 8bit digital-analog-converter
2 K555AP6 74LS245 D1,D2 8bit 3state transceiver
1 K555ID4 74LS155 D14 2x2bit decoder/demult
1 K555IR22 74LS373 D6 8bit 3state latch
4 K555IR32 74LS170 D7,D8,D9,D10 4x4bit register file OC
1 K555KP11 74LS257 D16 8-to-4 data selector
2 K555LI1 74LS08 D18,D20 Quad AND gates
1 K555LL1 74LS32 D19 Quad OR gates
1 K555LN1 74LS04 D17 Hex inverters
2 K555RU2 xxx D12,D11 16x4bit RAM with separate data in/out
1 K555TR2 74LS279 D13 Quad Set-Reset Latches
2 K555TM2 74LS74 D15,D25 Dual flipflop
1 K561KP1 4052 D22 8-to-2 line analog multiplexer
2 K561KT3 4066 D23,D24 Quad analog switches
In the schematics, all chips are on sheet1, except, D21..D24 on sheet2.
