Http://Www.xiaoyu163.Com - Onkyo DV-CP701 Service Manual

QQ
3 7 63 1515 0
IC BLOCK DIAGRAM/ TERMINAL DESCRIPTION
Q1251: IC41LV16100-50T 16-MBIT DYNAMIC RAM
PIN CONFIGURATION
VCC
1
I/O0
2
1/O1
3
1/O2
4
1/O3
5
VCC
6
1/O4
7
1/O5
8
1/O6
9
1/O7
10
NC
11
NC 15
16
NC
17
WE
18
RAS
NC 19
NC 20
A0 21
22
A1
23
A2
A3 24
VCC 25
PIN DESCRIPTION
Address input
A0-A9
I/O0-15 Data inputs/outputs
Write enable
WE
Output enable
OE
TE
L 13942296513
Row address strobe
RAS
UCAS Upper column address strobe
Lower column address strobe
LCAS
Power
VCC
Ground
GND
No connection
NC
TRUTH TABLE
Function
Standby
Read: Word
Read: Lower Byte
Read: Upper Byte
Write: Word (Early Write)
Write: Lower Byte (Early Write)
Write: Upper Byte (Early Write)
Read Write
EDO Page-Mode Read
EDO Page-Mode Read
EDO Page-Mode
Read-Write
www
Hidden Refresh
RAS-Only Refresh
CBR Refresh
.

http://www.xiaoyu163.com

FUNCTIONAL BLOCK DIAGRAM
OE
GND
50
WE
1/O15
49
1/O14
48
LCAS
1/O13
47
1/O12
46
UCAS
GENERATOR
GND
45
1/O11
44
1/O10
43
1/O9
42
1/O8
41
RAS
NC
40
GENERATOR
36 NC
35
LCAS
34
UCAS
33
CE
32 A9
31 A8
30 A7
29
A6
28
A5
27 A4
26 GND
RAS
H
L
L
L
L
L
L
L
1st Cycle L
2nd Cycle L
Any Cycle L
1st Cycle L
2nd Cycle L
1st Cycle L
2nd Cycle L
1st Cycle L H L
2nd Cycle L H L
x ao u163
y
L
H L
i
http://www.xiaoyu163.com
2 9
8
CAS
WE
CLOCK
CONTROL
CAS
LOGICS
RAS
CLOCK
REFRESH
COUNTER
ADDRESS
BUFFERS
Q Q
3 6 7 1 3
LCAS UCAS WE
H H X
L L H
L H H
H L H
L L L
L H L
H L L
L L H L
H L H L H
H L H L H
L H L H H
H L H L L
H L H L L
H L H L H L
H L H L H L
L L H
L L L
co
H H X
L L X
.
9 4 2 8
OE
CONTROL
WE
LOGICS
DATA I/O BUS
COLUMN DECODES
SENSE AMPLIFIERS
MEMORY ARRAY
1.048.576 x 16
1 5 0 5 8 2 9 9 4
OE Address t /t
R C
X X High-Z
L ROW/COL Dout
L ROW/COL Lower Byte. Dout
Upper Byte, High-Z
L ROW/COL Lower Byte, High-Z
Upper Byte. Dout
X ROW/COL Din
X ROW/COL Lower Byte. Din
Upper Byte, High-Z
X ROW/COL Lower Byte, High-Z
Upper Byte. Din
H L ROW/COL Dout, Din
L ROW/COL Dout
L NA/COL Dout
L NA/NA Dout
X ROW/COL Din
X NA/COL Din
L ROW/COL Dout, Din
L H NA/COL Dout, Din
m
L ROW/COL Dout
X ROW/COL Dout
X ROW/NA High-Z
X X High-Z
DV-CP701
9 9
I/O0-I/O15
2 8 9 9
I/O