Onkyo TX-SR502 Service Manual page 24

IC BLOCK DIAGRAM AND TERMINAL DESCRIPTIONS-14
Q702: MX29LV040 (4M-Bit CMOS Single Voltage 3V Only Equal Sector Flash Memory)
BLOCK DIAGRAM
CE
OE
WE
A0-A18
PIN LAYOUT
32 TSOP (Standard Type) (8mm x 20mm)
A11 1
A9 2
A8 3
A13 4
A14 5
A17 6
WE 7
VCC 8
MX29LV040
A18 9
A16 10
A15 11
A12 12
A7 13
A6 14
A5 15
A4 16
PROGRAM/ERASE
CONTROL
INPUT HIGH VOLTAGE
LOGIC
MX29LV040
FLASH
ARRAY
ADDRESS
LATCH
AND
BUFFER
Y-PASS GATE
SENSE
AMPLIFIER
I/O BUFFER
Q0-Q7
32 OE
31 A10
30 CE
29 Q7
28
Q6
27 Q5
26 Q4
25 Q3
24 GND
23 Q2
22 Q1
21 Q0
20 A0
19 A1
18 A2
17 A3
WRITE
STATE
MACHINE
(WSM)
STATE
REGISTER
ARRAY
SOURCE
HV
COMMAND
DATA
DECODER
PGM
DATA
COMMAND
HV
DATA LATCH
PROGRAM
DATA LATCH
TERMINAL DESCRIPTION
Pin Name
Description
A0~A18 Address Input
Q0~Q7 Data Input/Output
CE Chip Enable Input
WE
Write Enable Input
OE Output Enable Input
GND Ground Pin
VCC +3.0V single power supply
TX-SR502/E/8250/HT-R520