KMMR16R8GC Datasheet PDF - Samsung Semiconductor
| Part Number | KMMR16R8GC | |
| Description | (KMMR16R8xC / KMMR18R8xC) SDRAM | |
| Manufacturers | Samsung Semiconductor | |
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KMMR16R84(6/8/C/G)C
KMMR18R84(6/8/C/G)C
Preliminary
4/6/8/12/16d RIMMTM Module with 128Mb RDRAMs
4/6/8/12/16d RIMMTM Module with 144Mb RDRAMs
Overview
The Rambus® RIMM™ module is a general purpose high-
performance memory subsystem 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 128Mb/144Mb
Direct Rambus DRAM devices. These are extremely high-
speed CMOS DRAMs organized as 8M words by 16 or 18
bits. The use of Rambus Signaling Level (RSL) technology
permits 600MHz or 800MHz 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 RDRAM's 32-banks architecture
supports up to four simultaneous transactions per device.
Features
♦ High speed 800 and 600MHz RDRAM storage
♦ 184 edge connector pads with 1mm pad spacing
♦ Maximum module PCB size : 133.5mm x 34.93mm x
1.37mm (5.21” x 1.375” x 0.05”)
♦ Each RDRAM has 32 banks, for a total of 512, 384, 256,
192, or 128 banks on each 256/288MB, 192/216MB,
128/144MB, 96/108MB, or 64/72MB module respectively
♦ Gold plated edge connector pad contacts
♦ Serial Presence Detect(SPD) support
♦ Operates from a 2.5 volt supply (±5%)
♦ Low power and powerdown self refresh modes
♦ Separate Row and Column buses for higher efficiency
♦ RDRAMs use µ−BGA package type
Key Timing Parameters/Part Numbers
The following table lists the frequency and latency bins
available from RIMM modules. An optional ‘S’designator
instead of ‘R’followed by ‘hyphen(-)’indicates low power
modules.
TABLE 1. Part Number by Freq. & Latency
Speed
Organization
I/O trac (Row
Binning Freq. Access
MHz Time) ns
Part Numbera
32M x 16/18
48M x 16/18
64M x 16/18
96M x 16/18
128M x 16/18
-RG6
-RK8
-RM8
-RG6
-RK8
-RM8
-RG6
-RK8
-RM8
-RG6
-RK8
-RM8
-RG6
-RK8
-RM8
600
800
800
600
800
800
600
800
800
600
800
800
600
800
800
53 KMMR16/18R84C-RG6
45 KMMR16/18R84C-RK8
40 KMMR16/18R84C-RM8
53 KMMR16/18R86C-RG6
45 KMMR16/18R86C-RK8
40 KMMR16/18R86C-RM8
53 KMMR16/18R88C-RG6
45 KMMR16/18R88C-RK8
40 KMMR16/18R88C-RM8
53 KMMR16/18R8CC-RG6
45 KMMR16/18R8CC-RK8
40 KMMR16/18R8CC-RM8
53 KMMR16/18R8GC-RG6
45 KMMR16/18R8GC-RK8
40 KMMR16/18R8GC-RM8
a. -S designator is used for modules with lower self-refresh current.
Form Factor
The Rambus RIMM modules are offered in a 184-pad 1mm
edge connector pad pitch form factor suitable for 184 contact
RIMM connectors. The RIMM module is suitable for
desktop and other system applications.
Note: On two sided modules, RDRAMs are also installed on bottem side of PCB.
Figure 1: Rambus RIMM Module without heat spreader
Page 1
Rev.0.9 Apr. 1999
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KMMR16R84(6/8/C/G)C
KMMR18R84(6/8/C/G)C
Preliminary
4/6/8/12/16d RIMMTM Module with 128Mb RDRAMs
4/6/8/12/16d RIMMTM Module with 144Mb RDRAMs
SIO0
SIO1
SCK
CMD
Vref
SIO0
SIO1
SCK
CMD
Vref
SIO0
SIO1
SCK
CMD
Vref
•
•
•
SIO0
SIO1
SCK
CMD
Vref
U1
Direct RDRAM (128/144Mb)
U2
Direct RDRAM (128/144Mb)
U3
Direct RDRAM (128/144Mb)
UN
Direct RDRAM (128/144Mb)
Vdd
2 per
RDRAM
0.1µF
Gnd
VREF
1 per
2 RDRAMs
Plus one
Near Connector
0.1µF
Gnd
VCMOS
1 per
2 RDRAMs
0.1 µF
Gnd
•
•
•
Module
Capacity
N
256MB
192MB
128MB
96MB
64MB
16
12
8
6
4
Note 1. Rambus Channel signals form a loop through
the RIMM module, with the exception of the SIO chain.
Note 2. See Serial Presence Detection Specification for
information on the SPD device and its contents.
SVDD
SCL
SWP
47KΩ
SA0
SA1
SA2
Serial Presence Detect
Vcc SVDD
SCL SDA
SDA
WP
U0A0 A1 A2
Gnd
0.1 µF
Figure 2: RIMM Module Functional Diagram
Page 5
Rev.0.9 Apr. 1999
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for KMMR16R8GC electronic component. |
| Information | Total 10 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ KMMR16R8GC.PDF Datasheet ] | |
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