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MC-4R256CEE6C-745 View Datasheet(PDF) - NEC => Renesas Technology

Part Name
Description
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MC-4R256CEE6C-745 Datasheet PDF : 16 Pages
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MC-4R256CEE6B, 4R256CEE6C
Signal
RSCK
SA0
SA1
SA2
SCL
SDA
SIN
SOUT
SVDD
SWP
VCMOS
VDD
VREF
I/O
Type
Description
(2/2)
I
VCMOS Serial clock input. Clock source used to read from and write to the RDRAM
control registers.
I
SVDD
Serial Presence Detect Address 0.
I
SVDD
Serial Presence Detect Address 1.
I
SVDD
Serial Presence Detect Address 2.
I
SVDD
Serial Presence Detect Clock.
I/O
SVDD Serial Presence Detect Data (Open Collector I/O).
I/O
VCMOS Serial I/O for reading from and writing to the control registers. Attaches to SIO0
of the first RDRAM on the module.
I/O
VCMOS Serial I/O for reading from and writing to the control registers. Attaches to SIO1
of the last RDRAM on the module.
SPD Voltage. Used for signals SCL, SDA, SWP, SA0, SA1 and SA2.
I
SVDD Serial Presence Detect Write Protect (active high). When low, the SPD can be
written as well as read.
CMOS I/O Voltage. Used for signals CMD, SCK, SIN, SOUT.
Supply voltage for the RDRAM core and interface logic.
Logic threshold reference voltage for RSL signals.
6
Preliminary Data Sheet M14541EJ1V1DS00
 

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