Mitsubishi S290U, Service Manual, Page: 73 / 190

6
IC417 DS1708SESA
+
-
+
-
T.C.
REFERENCE
DIGITAL
SAMPLER
DIGITAL
SAMPLER
LEVEL SENSE
AND
DEBOUNCE
DIGITAL
DELAY
4
IN
2
V
CC
1
PBRST
8
RST
7
RST
5
NMI
IC418 SI-3025LS
1
Vout
T
S
D
GND
Vc
IN(MIC)
IN(PTr)
3
4
7,8
5,6
IC415 74VHCT138AMTC
O
7
O
5
O
6
O
4
O
3
O
2
O
1
O
0
7 9 10 11 12 13 14 15
E
1
E
2
E
3
A
1
A
0
A
2
1 2 3 4 5 6
H = HIGH Viltage Level
L = LOW Viltage Level
X = Immaterial
Inputs Outputs
TRUE TABLE
H
X
X
L
L
L
L
L
L
L
L
X
H
X
L
L
L
L
L
L
L
L
X
X
L
H
H
H
H
H
H
H
H
X
X
X
L
H
L
H
L
H
L
H
X
X
X
L
L
H
H
L
L
H
H
X
X
X
L
L
L
L
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
E 1 E 2 E 3 A 0 A 1 A 2 O 0 O 1 O 2 O 3 O 4 O 5 O 6 O 7
IC413 MT28F800B3WG-10T
8KB PARAMETER BLOCK
8KB PARAMETER BLOCK
16KB BOOT BLOCK
96KB MAIN BLOCK
128KB MAIN BLOCK
Y-SELECT GATES
128KB MAIN BLOCK
128KB MAIN BLOCK
128KB MAIN BLOCK
128KB MAIN BLOCK
128KB MAIN BLOCK
128KB MAIN BLOCK
SENSE AMPLIFIRES
WRITE/ERASE-Bit
COMPARE AND VERLLY
INPUT DATA
LATCH/MUX
16
INPUT
BUFFER
OUTPUT
BUFFER
OUTPUT
BUFFER
Q15
OUTPUT
BUFFER
MUX
7
8
INPUT
BUFFER
7
INPUT
BUFFER
7
8
A-1
8
X-DECODER/BLOCK ERASE CONTROL
Y-
DECODER
IDENTIFICATION
REGISTER
STATUS
REGISTER
ADDR.
COUNTER
STATE
MACHINE
V
PP
SWITCH/
PUMP
8
ADDR.
BUFFER/
LATCH
19 10
9
POWER
(CURRENT)
CONTROL
COMMAND
EXECUTION
LOGIC
8
I/O
CONTROL
LOGIC
1~8
16~25
48
A9
47
BYTE#
A0~A18/
(A19)
14
26
28
11
WP#
CE#
OE#
WE#
12
37
RP#
V
CC
13
V
PP
30,32
34,36
39,41
43
45
DQ15/
(A-1)
DQ8~DQ14
29,31
33,35
38,40
42,44
DQ0~DQ7
IC414 24LC64T-I/SN
I/O
CONTROL
LOGIC
5
SDA
6
SCL
MEMORY
CONTROL
LOGIC
XDEC
EEPROM ARRAY
PAGE LATCHES
HV GENERATOR
4
VSS
8
VCC
SENSE AMP
R/W CONTROL
YDEC
A0 A1 A2 WP
I / O
1 2 3 7
IC BLOCK DIAGRAMS