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IC BLOCK DIAGRAM & DESCRIPTION
IC131 M11L416256(256K x 16 DRAM)
WE
RAS
CONTROL
LOGIC
CASL
CASH
CLOCK
GENERATOR
COLUMN
9
ADDRESS
BUFFER
A0
A1
REFRESH
A2
CONTROLER
A3
A4
REFRESH
A5
COUNTER
A6
A7
9
9
A8
ROW.
9
9
ADDRESS
BUFFERS(9)
PIN DESCRIPTIONS
PIN NO.
PIN NAME
TYPE
16~19,22~26
A0~A8
Input
14
Input
RAS
28
Input
CASH
29
Input
CASL
13
Input
WE
27
Input
OE
2~5,7~10,31~34,36~39
I/O0 ~ I/O15
Input / Output
1,6,20
V
Supply
CC
21,35,40
V
Ground
SS
11,12,15,30
NC
IC160 LA6560(Motor Driverl)
I
1
FWD
N
Thermal Shutdown
P
(LOAD OUTPUT Voltage Setting)
U
2
REV
T
3
VCC2
O
U
VL0–
4
C
T
T
P
R
U
5
VL0+
L
T
L
6
V04+
S
E
H
V
I
E
F
7
V04–
L
T
L
8
V03+
S
E
H
V
I
E
F
9
V03–
L
T
POWER
SYSTEM
GND
FR FR
L
10
V02+
S
E
H
V
I
E
F
11
V02–
L
T
L
12
V01+
S
E
H
V
I
E
F
13
L
V01–
T
14
VCC1
22k
11k
15
VIN1
16
VIN1–A
AMP-A
17
VIN1+A
AMP-B
18
VIN1–B
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DATA-IN BUFFER
IO0
16
:
IO15
DATA-OUT
BUFFER
OE
COLUMN
9
DECODER
16
512
16
SENSE AMPLIFIERS
I/O GATING
8
512 x 16
512 x 512 x 16
MEMORY
512
ARRAY
V
CC
V
GENERATOR
BB
V
SS
DESCRIPTION
Address Input
Row Address : A0~A8
Column Address : A0~A8
Row Address Strobe
Column Address Strobe / Upper Byte Control
Column Address Strobe / Lower Byte Control
Write Enable
Output Enable
Data Input / Output
Power, 3.3V
Ground
-
No Connect
SIGNAL SYSTEM GND
36
S-GND
35
VCONT
BTL-AMP OUTPUT
34
MUTE
MUTE
ON/OFF
33
VIN4
22k
32
VIN4–
11k
31
VIN4+
30
VREF-IN
29
VIN1/VREF-SW
VIN1(VREF)-SW
28
VREF-OUT(CH1)
POWER
SYSTEM
GND
FR
FR
5VREG(PNP Ext.)
27
REG-OUT
26
REG-IN
22k
25
VIN3+
11k
24
VIN3–
23
VIN3
22k
22
VIN2+
11k
21
VIN2–
20
VIN2
19
VIN1+B
IC231 LA1844ML(AM/FM-IF/MPX)
24
23
22
21
20
ALC
AM
AM
AM
MIX
RF.AMP
OSC
BUFF
AGC
AM
IF
LEVEL
AM/FM
DET
IF
COMP
S-CURVE
BUFF
TUNING
FM
FM
DRIVE
IF
DET
REG
GND
1
2
3
4
5
IC241 LC72121M-D(PLL)
2
Vssx
REFERENCE
XIN
1
DIVIDER
XOUT
24
SWALLOW COUNTER
FMIN
17
1/2
1/16, 1/17 4bits
12bits PROGRAMMABLE
AMIN
16
CE
3
DI
4
CCB
DATA SHIFT REGISTER LATCH
I / F
CL
5
DO
6
POWER
V
18
ON
DD
RESET
Vssd
15
7
8
BO1 BO2 BO3 BO4
IC402 KA78R12STU(Low Dropout Voltage Regulator)
Vin
1
THERMAL SHUTDOWN
BANDGAP REFERENCE
OUTPUT
HIGH/LOW
ON/OFF
Vdis
4
1.4V
- 25 -
19
18
17
16
15
14
PILOT
DECODER
ANTI-BIRDIE
CANCEL
P-DET
AM
STEREO
DET
SW
FF
VCO
FF
FF
38k
304kHz
19k
19k
2
VCC
6
7
8
9
10
11
PHASE DETECTOR
CHARGE PUMP
UNLOCK
DETECTOR
DIVIDER
UNIVERSAL
COUNTER
9
10
11
14
IO1 IO2
Q1
OVERVOLTAGE
PROTECTION
R1
SOA PROTECTION
SHORT-CIRCUIT
PROTECTION
R2
3
GND
13
PILOT
DET
12
19
PD
20
AIN
21
AOUT
22
Vssa
13
IFIN
V
2
O
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