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IC BLOCK DIAGRAM & DESCRIPTION
PIN DESCRIPTION
SYMBOL
PIN NAME
A0~A18 Address
Input
Q0~Q7 Data
Input/Output
CE
Chip Enable Input
WE
Write Enable Input
OE
Output Enable Input
VCC
Single Power Supply Pin (+5V)
GND Ground
Pin
CE
OE
WE
CONTROL
INPUT
LOGIC
PRPGRA/ERASE
HIGH VOLTAGE
WRITE
STATE
MACHINE
(WSM)
A0~A18
ADDRESS
LATCH
AND
BUFFER
MX29F004T/B
FLASH
ARRAY
Y-PASS GATE
X-DECODER
Y
-DECODER
ARRAY
SOURCE
HV
STATE
REGISTER
COMMAND
DATA
DECODER
SENSE
AMPLIFIER
PGM
DATA
HV
PROGRAM
DATA LATCH
COMMAND
DATA LATCH
Q0~Q7
I/O BUFFER
IC180 MX29F004TPC-70 4M-Bit Flash Memory)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VCC
WE
A17
A14
A13
A8
A9
A11
OE
A10
CE
Q7
Q6
Q5
Q4
Q3
A18
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
Q0
Q1
Q2
GND
MX29F004T/B
RF
GND
FM
RF OUT
FM
RF IN
RF
Vcc
AM
LOW
CUT
MIX
OUT
FM
OSC
AM
RF IN
AM
OSC
ST
LED
OSC
OUT
Vcc
AM
IF IN
FM
IF IN
GND
IF
REQ
DET
OUT
LPF1
LPF2
AGC
QUAD R-OUT
L-OUT
24
21
20
19
18
17
16
15
14
13
22
23
1
4
5
6
7
8
9
10
11
12
3
2
AM
OSC
FM
OSC
AM
MIX
LEVEL
DET
AM
DET
FM
DET
FM
MIX
AGC
BUFF
FMRF
BUFF
ST
1/8
1/1 or
1/16
SW
IF
BUFF
AF
BUFF
FMIF
AMIF
AF
IF
REQ
ST/MO
FM/AM
MJTE
VCO
DIVIDE
DECODE
MPX
IN
IC211 TA21494BFN (AM/FM 1Chip Tuner IC)