Chapter 4
4 - 4
Memory section
The memory section can be divided into the following two blocks.
(1) FLASH ROM
(2) SDRAM
(1) FLASH ROM
The FLASH ROM, which uses TE28F128J3C-150 (128 MB), is used
for storing programs, function settings, electrocardiogram data, etc.
The WRITE MODE of the FLASH ROM can be set to JTAG MODE by
setting JP11 to open and JP12 to short.
F ROM L
MAA[0..25]
MDDD[0..15]
MAA[0..25]
MDDD[0..15]
MRD_1_L
FROMCS_L
( 11,12,18 )
MWR0_1_L
RESET_L
+3.3V
DG
+3.3V
FROMVPON
DG
+3.3V
( 7 )
( 7,11,12,18 )
( 7 )
128M
Intel Strate Frash
FROMWR_L
( 17 )
DG
6
14
1
20
10
IC1C
HD74LVC244A
(+3.3V)
( 7,8,10,11,12,18,20 )
JP11
SHORT
NORMAL
JP12
OPEN
FROM WR
SHORT
OPEN
JTAG
MODE
+5V
+3.3V
DG
MAA2
MAA3
MAA4
MAA5
MAA6
MAA7
MAA8
MAA9
MAA10
MAA11
MAA12
MAA13
MAA14
MAA15
MAA16
DG
2
1
+
C202
1.0UF/16V(T)3
C236
0.01UFFZ
C237
0.01UFFZ
C238
0.01UFFZ
JP11 0F
R20
10KF
+3.3V
6
14
1
20
10
IC8C
HD74ACT244
MDDD0
MDDD1
MDDD2
MDDD3
MDDD4
MDDD5
MDDD6
MDDD7
MDDD8
MDDD9
MDDD10
MDDD11
MDDD12
MDDD13
MDDD14
MDDD15
( 10,11,12,18 )
MAA17
MAA18
MAA19
MAA20
MAA21
MAA22
MAA23
MAA1
( 7,12,18 )
JP12
CE0
14
A12
13
A13
12
A14
11
A15
10
A22
1
CE1
2
CE2
29
A0
32
A1
28
A2
27
A3
26
A4
25
A5
24
A6
23
A7
22
A8
20
A9
19
A10
18
A11
17
A16
8
A17
7
A18
6
A19
5
A20
4
A21
3
DQ0
33
DQ1
35
DQ2
38
DQ3
40
DQ4
44
DQ5
46
DQ6
49
DQ7
51
DQ8
34
DQ9
36
DQ10
39
DQ11
41
DQ12
45
DQ13
47
DQ14
50
DQ15
52
Vcc
9
Vcc
37
Vpen
15
Vccq
43
GND
21
GND
48
GND
42
STS
53
OE#
54
WE#
55
RP#
16
BYTE#
31
NC
56
A23
30
IC14
TE28F128J3C-150
Summary of Contents for FX-7302
Page 10: ...viii ...
Page 12: ......
Page 60: ...Chapter 2 2 40 ...
Page 62: ......
Page 86: ...Chapter 4 4 18 ...
Page 87: ...4 19 MAIN BOARD circuit diagram PCB 6956B Power connection table No 1 ...
Page 114: ...4 46 ...
Page 116: ......
Page 130: ......
Page 131: ...6 1 MAIN BOARD PCB 6956B component side ...
Page 132: ...6 2 MAIN BOARD PCB 6956B soldering side ...
Page 133: ...6 3 OPERATION BOARD PCB 6957B component side ...
Page 134: ...6 4 OPERATION BOARD PCB 6957B soldering side ...
Page 135: ...6 5 ECG AMP BOARD PCB 6731D component side ...
Page 136: ...6 6 ECG AMP BOARD PCB 6731D soldering side ...
Page 137: ...6 7 MARK SENSER BOARD PCB 6942 component side ...
Page 138: ...6 8 MAGAZIN UP BOARD PCB 6943A component side ...
Page 139: ...6 9 CONNECTION BOARD PCB 7028 component side ...
Page 140: ...6 10 ...
Page 142: ......
Page 151: ...7 9 Outline view 255 315 70 76 ...
Page 152: ...7 10 ...
Page 154: ......
Page 160: ...Chapter 8 8 6 ...
Page 161: ......