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SM5907AF Datasheet(PDF) 29 Page - Nippon Precision Circuits Inc

Part # SM5907AF
Description  compression and non compression type shock-proof memory controller
PDF  30 Pages
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Manufacturer  NPC [Nippon Precision Circuits Inc]
Direct Link  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM5907AF Datasheet(HTML) 29 Page - Nippon Precision Circuits Inc

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NIPPON PRECISION CIRCUITS-29
SM5907AF
Connection example
4M DRAM
× 1 or 2 typical connection
16M DRAM
× 1 or 2 typical connection
DRAM OE pin is tied LOW.
In response to the YFLAG input, the 85H command (option settings) should be:
D5: YFLGS =1, D4: YFCKP set to the YFLAG active level.
If YFLAG is active LOW, set YFCKP=0. If YFLAG is active HIGH, set YFCKP=1.
If 4M DRAM
× 2 are used, use A10/NCAS2 pin.
If 16M DRAM
× 2 are used, use NCAS3 pin.
Micro-
controller
CD
DSP
D/A
converter
SM5907
4M DRAM 1
4M DRAM 2
YMDATA
YMCLK
YMLD
ZSENSE
YBLKCK
YFLAG
YFCLK
YLRCK
YSCK
YSRDATA
ZLRCK
ZSCK
ZSRDATA
UC1 to UC5
NRAS
NWE
A0 to A9
D0 to D3
NCAS2
A0 to A9
D0 to D3
A0 to A9
D0 to D3
CLK
NRESET
YDMUTE
NCAS
RAS
WE
OE
CAS
RAS
WE
OE
CAS
NRAS
NWE
A0 to A9
D0 to D3
Micro-
controller
CD
DSP
D/A
converter
SM5907
16M DRAM 1
16M DRAM 2
YMDATA
YMCLK
YMLD
ZSENSE
YBLKCK
YFLAG
YFCLK
YLRCK
YSCK
YSRDATA
ZLRCK
ZSCK
ZSRDATA
UC1 to UC5
NRAS
NWE
A0 to A10
D0 to D3
NCAS3
A0 to A10
D0 to D3
A0 to A10
D0 to D3
CLK
NRESET
YDMUTE
NCAS
RAS
WE
OE
CAS
RAS
WE
OE
CAS
NRAS
NWE
A0 to A10
D0 to D3



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