Pin Description - Marantz ER2500 Service Manual

IC38: MX29LV400T/B
A15 1
A14 2
3
A13
A12 4
A11 5
A10 6
A9 7
A8 8
NC 9
NC 10
WE 11
RSEET 12
NC 13
14
NC
RY/BY 15
NC 16
A17 17
A7 18
A6 19
A5 20
A4 21
A3 22
A2 23
A1 24
BLOCK DIAGRAM
CE
OE
WE
RESET
A0-A17
MX29LV400T/B
CONTROL
INPUT
LOGIC
ADDRESS
LATCH
AND
BUFFER
Q0-Q15/A-1

PIN DESCRIPTION

48 A16 SYMBOL
47 BYTE
46 GND
A0~A17
45 Q15/A-1
44 Q7
Q0~Q14
43 Q14
42 Q6
Q15/A-1
41 Q13
40 Q5
CE
39 Q12
38 Q4
WE
37 VCC
36 Q11
BYTE
35 Q3
34 Q10
RESET
33 Q2
32 Q9
OE
31 Q1
30 Q8
RY/BY
29 Q0
28 OE
VCC
27 GND
26 CE
GND
25 A0
PROGRAM/ERASE
HIGH VOLTAGE
MX29LV400T/B
FLASH
ARRAY
ARRAY
SOURCE
HV
Y-PASS GATE
PGM
SENSE
DATA
AMPLIFIER
HV
PROGRAM
DATA LATCH
I/O BUFFER
30
PIN NAME
Address Input
Data Input/Output
Q15(Word mode)/LSB addr(Byte mode)
Chip Enable Input
Write Enable Input
Word/Byte Selection input
Hardware Reset Pin/Sector Protect Unlock
Output Enable Input
Ready/Busy Output
Power Supply Pin (2.7V~3.6V)
Ground Pin
WRITE
STATE
MACHINE
(WSM)
STATE
REGISTER
COMMAND
DATA
DECODER
COMMAND
DATA LATCH