Sony HCD-C990 Service Manual - Page 82

NC NC A0 A1 A2 A3 VCC A9 A8 A7 A6 A5 A4 VSS HCD-C770/C990 VSS DQ16 DQ15 DQ14 DQ13 VSS DQ12 DQ11 DQ10 DQ9 LCAS UCAS OE A9 A8 A7 A6 A5 A4 VSS IC706 MSM51V18165F-60TSKR1 50 49 48 47 46 45 44 43 42 41 NC 40 - 36 35 34 33 32 31 30 29 28 27 26 OUTPUT BUFFER INPUT BUFFER I/O CONTROLLER I/O CONTROLLER TIMING GENERATOR REFRESH CONTROL CLOCK INTERNAL ADDRESS COUNTER COLUMN ADDRESS BUFFERS ROW ADDRESS BUFFERS I/O SELECTOR OUTPUT BUFFER INPUT BUFFER SENSE AMPLIFIER COLUMN DECODERS MEMORY CELLS WORD DRIVERS ROW DECODERS VCC VCC 1 2 3 4 5 6 7 8 9 10 11 - 16 NC 17 18 ON CHIP VBB GENERATOR ON CHIP IVCC GENERATOR VCC VCC VCC 19 20 21 22 23 24 25 RAS WE DQ8 VSSQ DQ7 DQ6 VCCQ DQ5 VCC DQ4 DQ3 DQ2 DQ1 VCC IC808 MSM56V16160F-8TK7R1 UDQM CLK CKE VCCQ DQ10 DQ9 DQ11 DQ12 DQ13 DQ14 VSSQ DQ15 DQ16 VSS NC NC 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 OUTPUT BUFFERS READ DATA REGISTER INPUT DATA REGISTER INPUT BUFFERS TIMING REGISTER PROGRAMING REGISTER LATENCY & BURST CONTROLLER I/O CONTROLLER BANK CONTROLLER INTERNAL COLUMN ADDRESS COUNTOR COLUMN ADDRESS BUFFERS ROW ADDRESS BUFFERS INTERNAL ROW ADDRESS COUNTOR SENSE AMPLIFIER COLUMN DECODERS MEMORY CELLS WORD DRIVERS ROW DECODERS 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 VCC DQ1 DQ2 VSSQ DQ3 DQ4 VCCQ DQ5 DQ6 VSSQ DQ7 DQ8 VCCQ LDQM WE CAS RAS CS A11 A10 A0 A1 A2 A3 VCC 82