Exploded View And Parts List - Marantz SA1/F1N Service Manual

IC903 RH-iX2840AFZZ: 16Mbit SDRAM (IX2840AF)
Pin No. Terminal Name Function
1 VCC Power supply (3.3V)
2-5 DQ1-DQ4 Data input/output
6 WE Write enable
7 RAS Row address strobe
8* NC Not used
9 A10R Address input
10-13 A0-A3 Address input
14 VCC Power supply (3.3V)
15 VSS Ground (0V)
16-21 A4-A9 Address input
22 OE Output enable
23 CAS Column address strobe
24-27 DQ5-Q8 Data input/output
28 VSS Ground (0V)
In this unit, the terminal with asterisk mark (*) is (open)
terminal which is not connected to the outside.
TIMING
RAS
GENERATOR
CAS
COLUMN /
10
ADDRESS 10
BUFFER
INTERNAL
REFRESH
A0~A9 ADDRESS
MASTER CLOCK
COUNTER
10
ROW
11
ADDRESS
BUFFER
A10R
1
V V
CC CC
ON CHIP
VCC GENERATOR
V V
SS SS
28 pin plastic TSOP
28 pin plastic SOJ
V 1 28 V V 1
CC SS CC
DQ1 2 27 DQ8 DQ1 2
DQ2 DQ7 DQ2
3 26 3
DQ3 4 25 DQ6 DQ3 4
DQ4 5 24 DQ5 DQ4 5
WE CAS WE
6 23 6
RAS OE RAS
7 22 7
NC A9 NC
8 21 8
A10R A8 A10R
9 20 9
A0 A7 A0
10 19 10
A1 A6 A1
11 18 11
A2 A5 A2
12 17 12
A3 A4 A3
13 16 13
V V V
CC 14 15 SS CC 14
WE OE
INPUT/OUTPUT
OUTPUT
CONTROL UNIT
8
BUFFER
COLUMN ¥
INPUT
8
DECODER
BUFFER
INPUT/
8 OUTPUT
SENSE AMPLIFIER 8
SELECTOR
MEMORY
CELL
2-35

2.6 EXPLODED VIEW AND PARTS LIST

(Type K)
28 V
SS
27 DQ8
DQ7
26
25 DQ6
24 DQ5
CAS
23
OE
22
A9
21
A8
20
A7
19
A6
18
718x2
A5
17
A4
16
V
15 SS
8
DQ1~DQ8
8
326
717
717
321
342
322
711
344
711
344
315
340
701x2
711x4
717x2
309x2
316
341
320
718x2
324
711
M703 710
329
317
711x2
719x2
328
327
715
716
343
711x4
2-36
709
323
346
345
717x3
319
705x2
714
308
313
701x2
312x2
301
PWB-D3
712
713x2
325
325
303
711x2
318
SW52
SW51
PWB-D1
PWB-D2
711x2