Casio TE-3000S Service Manual page 28

5-10. FROM (IC24: MBM29F160BE90TN)
5-10-1. Pin Assignment
A15 1
A14 2
A13 3
A12 4
A11 5
A10 6
A9 7
A8 8
A19 9
N.C. 10
WE 11
RESET 12
N.C. 13
WP 14
RY/BY 15
A18 16
A17 17
A7 18
A6 19
A5 20
A4 21
A3 22
A2 23
A1 24
5-10-3. Pin Function
V
CC
V
SS
WE
BYTE
RESET
CE
OE
A to A
0 18
A
-1
5-10-2. Block Diagram
48 A16
47 BYTE
VSS
46
45 DQ15/A-1 Pin
44 DQ7
A , A to A
-1 0
43 DQ14
DQ to DQ
0
42 DQ6
CE
41 DQ13
OE
40 DQ5
DQ12
39
WE
38 DQ4
RY/BY
VCC
37
RESET
36 DQ11
BYTE
35 DQ3
34 DQ10
N.C.
33 DQ2
V
SS
32 DQ9
V
CC
31 DQ1
DQ8
30
29 DQ0
OE
28
27 VSS
26 CE
25 A0
RY/BY
RY/BY
Buffer
State
Control
Command
Register
Program Voltage
Generator
Timer for
Low V Detector
CC
Program/Erase
— 26 —
Address Inputs
19
Data Inputs/Outputs
15
Chip Enable
Output Enable
Write Enable
Ready/Busy Output
Hardware Reset Pin/Temporary Sector Unprotection
Selects 8-bit or 16-bit mode
No Internal Connection
Device Ground
Device Power Supply
Erase Voltage
Generator
Chip Enable
Output Enable
Logic
Y-Decoder
STB
Address
X-Decoder
Latch
Function
DQ to DQ
0 15
Input/Output
Buffers
STB
Data Latch
Y-Gating
Cell Matrix