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Description: The Rambus RIMM module is a general purpose high- performance memory module suitable for use in a broad range of applications including computer memory, personal computers, workstations, and other applications where high bandwidth and low latency are required. The Rambus RIMM module consists of 128/144Mb Direct Rambus DRAM devices. These are extremely high-speed CMOS DRAMs organized as 16M words by 16 or 18 bits. The use of Rambus Signaling Level (RSL) technology permits 600 MHz or 800 MHz transfer rates while using conventional system and board design technologies. RDRAM devices are capable of sustained data transfers at 1.25 ns per two bytes (10ns per 16 bytes). The RDRAM architecture enables the highest sustained bandwidth for multiple, simultaneous, randomly addressed, memory transactions. The separate control and data buses with independent row and column control yield over 95% bus efficiency. The RDRAMs 32-bank architecture supports up to four simultaneous transactions per device.
Features
High speed 800MHz RDRAM storage
184 edge connector pads with 1mm pad spacing
Module PCB size : 133.35mm x 31.75mm x 1.27mm
(5.25" x 1.25" x 0.05") - 256Mb base RIMM
Module PCB size : 133.35mm x 34.93mm x 1.27mm
(5.25" x 1.375" x 0.05") - 288Mb base RIMM
Each RDRAM has 32 banks, for a total of 512, 256, 128,
64 banks on each 512/576MB, 256/288MB, 128/144MB, 64/72MB module respectively
Gold plated edge connector pad contacts
Serial Presence Detect(SPD) support
Operates from a 2.5 volt supply (?%)
Powerdown self refresh modes
Separate Row and Column buses for higher efficiency
WBGA package (92 balls)
Part Number Density(MB) Organization Comp.
Composition Voltage(V) Refresh Speed(MHz)/
tRAC(ns) #of
Pin Production
Status Comments
MR16R1624DF0 ( - ) 128 64Mx16 256M 5thx4pcs 2.5 16K/32ms 800-40(45), 1066-32P(*Note1) 184 Mass Production SS
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| Memory Type | Rambus |
| Capacity | 128MB |
| Pins | 184 Pin |
| Bus Type | PC-800 |
| Error Correction | Non-ECC |
| Memory Speed | 40 |
| Data Transfer Rate | 800Mhz |
| Voltage | 3.3 |
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