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IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -32
U8031: S29GL128N (128 Mbit Flash Memory)
BLOCK DIAGRAM
RY / BY#
V
CC
V
SS
V
IO
RESET#
WE#
STATE
CONTROL
WP#/ACC
COMMAND
BYTE#
REGISTER
CE#
OE#
Vcc DETECT CIRCUIT
A0-A22
PIN CONFIGURATION
RESET#
WP#/ACC
RY/BY#
SELECTER SWITCH
ERASE VOLTAGE
PROGRAM VOLTAGE
GENERATOR
TIMER
NC
1
A22
2
A15
3
A14
4
A13
5
A12
6
A11
7
A10
8
A9
9
A8
10
A19
11
A20
12
WE#
13
14
A21
15
16
17
A18
18
A17
19
A7
20
A6
21
A5
22
A4
23
A3
24
A2
25
A1
26
27
NC
28
NC
GENERATOR
CHIP ENABLE
OUTPUT ENABLE
LOGIC
Y-DECODER
STB
X-DECODER
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
30
29
TX-SR875
DQ15-DQ0(A1)
INPUT/OUTPUT
BUFFER
DATA
STB
LATCH
Y-GATE
CELL MATRIX
NC
NC
A16
BYTE#
V
SS
DQ15/A-1
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4
V
CC
DQ11
DQ3
DQ10
DQ2
DQ9
DQ1
DQ8
DQ0
OE#
V
SS
CE#
A0
NC
V
IO
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