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PCB-SIGNAL(3/4)
IC401 MT28F800B3WG-10T@XD200
47
I/O
BYTE#
CONTROL
~
1
8
LOGIC
~
16
25
48
~
A0
A18/
(A19)
A9
14
WP#
26
CE#
28
COMMAND
OE#
EXECUTION
11
WE#
LOGIC
12
RP#
37
V
CC
13
V
PP
IC402 CAT24WC64J
(Open drain)
Word address buffers
5
SDA
7
WP
Control logic
8
Vcc
4
Vss
6
SCL
1
Stage counters
A0
2
A1
Slave address
3
Comparators
A2
ADDR.
BUFFER/
19
LATCH
ADDR.
POWER
COUNTER
(CURRENT)
CONTROL
STATE
MACHINE
V
PP
SWITCH/
PUMP
STATUS
REGISTER
Dout&ACK
Column decorders
Start/Stop
256
logic
XDEC
&
16KB BOOT BLOCK
8KB PARAMETER BLOCK
10
8KB PARAMETER BLOCK
96KB MAIN BLOCK
9
128KB MAIN BLOCK
128KB MAIN BLOCK
128KB MAIN BLOCK
128KB MAIN BLOCK
128KB MAIN BLOCK
128KB MAIN BLOCK
128KB MAIN BLOCK
Y-
Y-SELECT GATES
DECODER
SENSE AMPLIFIRES
WRITE/ERASE-Bit
COMPARE AND VERLLY
IDENTIFICATION
REGISTER
Sense amps
Shift registers
256
Memory array
256×256
Data in Storage
OUTPUTS
High Voltage
generator &
Timing control
B-4
INPUT
8
8
BUFFER
INPUT
7
BUFFER
INPUT
BUFFER
A-1
INPUT DATA
LATCH/MUX
16
Q15
OUTPUT
BUFFER
OUTPUT
7
BUFFER
8
OUTPUT
MUX
BUFFER
8
IC404 SP3220ECY
Vcc
15
2
C1+
4
C1-
5
C2+
6
C2-
LOGIC
11
T1 IN
INPUTS
LOGIC
9
R1 OUT
5kΩ
1
EN
14
GND
can be returned to either Vcc or GND
45
DQ15/
(A-1)
30,32
34,36
39,41
43
~
DQ8
DQ14
7
29,31
33,35
38,40
42,44
8
~
DQ0
DQ7
3
V+
7
V-
RS-232
13
T1 OUT
OUTPUTS
8
RS-232
R1 IN
INPUTS
16
SHDN
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