Sharp XE-A302

XE-A302U CIRCUIT DIAGRAM AND PWB LAYOUT
– 17 –
PLACE NEAR CPU!!!
7pin:GND
7pin:GND *IC3 14pin:VDD
150pF*10(C1-C10)
100pF*8(C24-C31)
150pF*8(C11-C18 )
NOT INSTALL INSTALL
<- OR ->
SII
*IC4 14pin:VDD
RAM1
/RDY
VREF
P91 P90
BUSY
VREF
BUZZER
D6 D5
D1
D4
D0 D7
D3
D2
A16
A9 A13
/RAM1
A12
A4 A11 A6 A5 A0 A2
A18
A7
A14
A[0..19]
A10 A8
A1 A3
/RAM1
/CS1 /CS2 /CS0
D[0..7]
BLON3
LCDON3
INI2 INI1
D62,3
/PLCS3 /PLRD3 /PLWR3
PLDATA3
ENA24 ENA14
BUSY
/LDCS3
/LAT4 VPON4,5
BR02 BR12
/STB14
/RS2 6
/RDY
/RS1 6 /CD1 6 /DR1 6
RXD2 6 TXD2 6
RXD1 6 TXD1 6 /CTS1 6
/POFF 3,5
A32,3
VPTEST4
TM4
A8 2 A12 2 A13 2 A14 2 A15 2 A16 2 A17 2 A18 2 A19 2
/CS0 2 /CS1 /CS2 /CS3 3
/WR 2,3 /RD 2,3
P913,4,6
MDR3
DAT 4 PCLK 4
DRAWER1 3
/ER1 6
/STB2 4
/WP 2
VBAT5
/RES 2,3,4/RESET3
/ER26
BR22
IPLON 2
MOTOR 4
/RD 2,3 /WR 2,3
D32,3
A62
FRA20/SRA17 2
A22
A72
D72,3 D22,3
A52
A10 2
D12,3 D02,3 D52,3
A9 2
A12,3
D42,3
A42
A11 2
FRA19/SRA15 2
A02,3
RAMCS12
VDD
VCC VCC
VCC VCC
VCC
VCC
VCC
VCC
VCC
VDD
VDD
VDD
VCC
VCC
VCC
VCC VCC
VDD
VDD
VDD
VDD
VDD
C38 0.1uF
C5
R1 10K
R50 100 R44 100
R76
(2.2K)
R45 100
R7 10K
C27
R2 10K
R13 10K
R8 10K
R62 47K
R54 10k
R28 10K
C35
100pF
C17
R43
10K
R49 100
C31
C23 30pF
C46 (0.1uF)
R22 10K
C1
C6
R67 10K
R3 10K
R23 10K
C7
R63 10K
R59 47K
R58 10K
C37
(330pF)
C26
+
C39
(10uF/50V)
C25
R24 10K
IC3B 74LV10A
3 4 5
6
R14 10K
R78
47K
R64
10K
R9 10K
C18
R29 10K
R30 10K
R48 100
C8
R47 100
R66
240
X2
(CST12.0MTW)
2
3
1
R35 10K
C20
150pF
C34
100pF
C33
100pF
IC5
KIA431A
K
A
R
C2
C30
R4 10K
D1
(1SS355)
AK
C50
1000pF
C36330pF
C24
IC4C 74LV00A
9
10
8
C1A 1000pF
R51 100
R20
10K
IC2
M30620SAFP
81
80
82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
100
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
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
D7
D8
D6 D5 D4 D3 D2 D1 D0 AN7 AN6 AN5 AN4 AN3 AN2 AN1 AVSS AN0 VREF AVCC SIN4
SOUT4
CLK4
TB4IN
TB3IN
SOUT3
SIN3
CLK3
BYTE
CNVSS
XCIN
XCOUT
RESET
XOUT
VSS
XIN
VCC
NMI
INT2
INT1
INT0
TA4IN/U
TA4OUT/U
TB3IN
TBEOUT
TA2INW
TA2OUTW
TA1IN/V
TA1OUT/V
TB5IN
TB5OUT
D9
D10
D11
D12
D13
D14
D15
A0
A1
A2
A3
A4
A5
A6
A7
VSS
A8
VCC
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
CS0 CS1 CS2 CS3
WR
BHE
RD
CBCLK
HLDA
HOLD
ALE
CLKOUT
RTS0 CLK0
RXD0
TXD0
CLKS1
CLK1
RXD1
TXD1
R40 47K
C19
100pF
R31 10K
R46 100
+
C49 10uF/10V,OS
C12
C9
IC6
S-80928ANMP
2 3 15
4
VDD VSS OUT CD
NC
R60 47K
R80
3.3K
R15 10K
R38 10K
R10 10K
C32 100pF
R25 10K
R41 47K
R77 (12K)
C3
C11
R5 10K
C29
C40
1000pF
IC3A 74LV10A
1 2
13
12
R39 10K
R32 10K
B
+
BZ2
(2048BH)
R56
10K
X3
CST12.0MTW
2
3 1
R37 10K
C13
C10
IC7 FS781
1 2 3 45
6 7 8
XIN XOUT S1 LF VSS
FSOUT
S0
VDD
R16 10K
C4
B
+
BZ1 PIEZO BZ
R61 47K
R11 10K
C28
+
C42
10uF/50V
R27 10K
C45 27pF
R71
100K
C22 100pF
R79
820
R74 330
R72 (0)
IC4A 74LV00A
1 2
3
X1
32.768KHz
C44 18pF
R33 10K
R68 10K
C21
150pF
R36 10K
C14 C15
R17 10K
R42 10K
R73 470
C48 0.1uF
R6 10K
C51 330pF
R12 10K
C43
0.1uF
Q1
C2412K
B
EC
R75 33
R70
47K
R34 10K
C16
R26 10K
C41
1000pF
IC4B 74LV00A
4 5
6
R65 10K
C47
2200pF
IC1
4MSRAM HY628400ALLT2-70
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
A18 A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2 GND
VCC
A15 A17
WR
A13
A8 A9
A11
RD
A10
CS
D7 D6 D5 D4 D3
R18 10K
A B
C D
87654
3
21
12345678
D C
B A A
B
C D
87654
3
21
12345678
D C
B A A
B
C D
87654
3
21
12345678
D C
B A A
B
C D
87654
3
21
12345678
D C
B A
1/7
CPU
CHAPTER 8. CIRCUIT DIAGRAM AND PWB LAYOUT