JVC RS-WP1WT Service Manual page 33

M11L1644SA-50T (IC605) : D RAM
1. Terminal layout
VDD 1
DQ0 2
DQ1 3
WE 4
RAS 5
NC 6
A10 7
A0 8
A1 9
A2 10
A3 11
VDD1 12
3. Block Diagram
RAS
CAS
A0-A10
A0
A0
A0-A10
VSS,VSS1
VDD,VDD1
2. Pin Function
24 VSS1
23 DQ3
22 DQ2
21 CAS
20 DE
19 A9
18 A8
17 A7
16 A6
15 A5
14 A4
13 VSS
Clock Generator
CBR
Counter
Memory
Cells
Address
Buffer
Clumn
Decoders
On Chip
VBB
VBB
Generator
Symbol
A0-A10 Address Input
RAS Low Address strove
CAS Column Address Strove
WE Write enable Input
DE Output Enable Input
DQ0-DQ3 Data in/out
VCC, VCC1 Power Supply (+3.3V)
VSS, VSS1 Power Supply (0V)
NC Non Connect
Write
Clock
Generator
Data
Input
Buffer
Sense
Amps
Data
Output
Buffer
Function
WE
DQ0
~DQ3
DE
RS-WP1WT
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