MC-4R256CEE6B Datasheet, PDF (7/16 Pages) NEC – Direct Rambus DRAM RIMM Module 256M-BYTE 128M-WORD x 16-BIT

MC-4R256CEE6B, 4R256CEE6C
Block Diagram
SIO 0
SIO 1
U1
SCK
CMD
VREF
SIO 0
SIO 1
U2
SCK
CMD
VREF
SIO 0
SIO 1
U3
SCK
CMD
VREF
SIO 0
SIO 1
U16
SCK
CMD
VREF
SVDD
SERIAL PD
SVDD
VDD
2 per
RDRAM
0.1 µF
0.1 µF
SCL
SWP
47 kΩ
SCL
WP
VCC
U0 SDA
SDA
VCMOS
VREF
A0 A1 A2
1 per
2 RDRAMs
0.1 µF
1 per
2 RDRAMs
Plus one
Near Connector
0.1 µF
SA0 SA1 SA2
Remarks 1. Rambus Channel signals form a loop through the RIMM module, with the exception of the SIO chain.
2. See Serial Presence Detection Specification for information on the SPD device and its contents.
Preliminary Data Sheet M14541EJ1V1DS00
7