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3 7 63 1515 0
4. Pin Description of IC's
4-1 64 Bit SDRAM : HY57V641620HGT (DVD & VIDEO IC63)
Pin No.
Pin Name
38
37
19
20,21
BA0,BA1
22~26
29~35
16,17,18
WE,CAS,RAS
15,39
LDQM,UDQM
2,4,5,7,8,10
11,13,42,44
DQ0~DQ15
45,47,48,50
51,53
1,3,9,14,27
VCC/VCC Q
43,49
6,12,28,41,
VSS/VSS Q
46,52,54
36,40
4-2 HEX Inverter (Single Stage) : M74HCU04 (DVD & VIDEO IC67)
TE
L 13942296513
Pin No.
Pin Name
1,3,5,9,
A0 to A5
11,13
2,4,6,8,
Q0 to Q5
10,12
7
GND
14
VCC
4-3 Video Driver : MM1540AF (DVD & VIDEO, IC68)
Pin No.
Pin Name
1,2
VCC1,2
2,6,9
VIN,VIN (1,2)
3
YC MIX
4
CIN
5
CLP
7,8
MUTE (1,2)
10
GND
11,13
CbIN, CrIN
12
Dual/Single
14,15,19,
VEE1, VEE2
21,22,24
CrOUT, CbOUT,
16,18,20,
YOUT2,YOUT1,
23,25,27
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COUT,VOUT
YOUT1,
23,25,27
COUT,VOUT
17,26
PS2,PS1
.
CIRCUIT DESCRIPTION
I/O
The system clock input. all other inputs are registered to the SDRAM on
CLK
I
the rising edge of CLK.
Controls internal clock signal and when deactivated, the SDRAM will be one
CKE
-
of the states among power down, suspend or self refresh.
CS
-
Enables or disables all inputs except CLK, CKE, and DQM.
Selects bank to be activated during RAS activity.
-
Selects bank to be read/written during CAS activity.
Row address : RA0~RA11, Column address : CA0~CA7
A0~A11
-
Auto-precharge flag : A10
-
WE, CAS and RAS define the operation.
I/O
Controls output buffers in read mode and masks input data in write mode.
I/O
Multiplexed data input/output pin.
-
Power supply for internal circuits and input buffers.
-
Ground terminal.
NC
-
Unused.
I/O
Pin Description
I
Data Inputs
O
Data Outputs
-
Ground
-
Positive Supply Voltage
I/O
-
VCC
I
Video input (Composite or Y)
-
YC MIX select (Unused)
I
Croma input (Open)
-
Clamp select (Connected to GND)
O
Mute select (Unused)
-
GND
I
Component input
-
Power select (+5V)
-
VEE (-5V)
O
Video output
x
ao
O
Video output (Open)
y
-
Power save (Connected to GND)
i
8
Pin description
Q Q
3
6 7
1 3
Truth Table
Pin Description
u163
.
DVR-8100
2 9
9 4
2 8
1 5
0 5
8
2 9
9 4
A
Q
L
H
H
L
m
co
9 9
2 8
9 9
9
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