SDRAM

What is RAM?
RAM or, Random Access Memory, is in almost all computing-capable devices. Found in handheld devices like smartphones, tablets and games consoles as well as laptops, desktop computers, televisions and so much more. RAM enables these devices to process tasks, manage information and solve problems.

What are RAM Memory Chips?
Computer memory modules are typically in either DIMM or SO-DIMM formats made up of a PCB board with a range of small memory chips on board. An SDRAM memory chip is what enables the RAM module to process tasks required by the device it is installed in. The memory size of each chip on the module each contributes to the overall RAM size that is accessible by the device. Larger memory sizes typically allow for more tasks, greater problem-solving power or the ability to run more or larger pieces of software at any one time.

What is SDRAM?
SDRAM, unlike regular DRAM, operates while syncing with the CPU clock. This syncing means the RAM waits for the clock signal before it will respond to data input. Unlike regular DRAM that will respond immediately to input data, SDRAM has a pipelining function allowing the CPU to process multiple tasks in parallel.

Aside from memory size, access time and data rates are key to having the most efficient and high performing device possible. These two factors are what allow CPUs to access the system RAM and engage processes and solve problems. Shorter access times provide faster access, building more efficient working environments.

Data rates, measured in Megahertz (MHz), varies across types and sizes of RAM and combined with bus widths and access time, data rates play a large part of processing. The data rate is quite simply the speed at which data can be fed into and out of systems. This means time taken to feed a process into the RAM and then transfer the results of the process undertaken back to the computer or device using it. Higher MHz values on RAM provide faster transfer times allowing systems to both feed and receive information faster.

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Description Price Memory Size Organisation SDRAM Class Data Rate Data Bus Width Address Bus Width Number of Bits per Word Maximum Random Access Time Number of Words Package Type Pin Count Dimensions Height Length
RS Stock No. 188-2788
Mfr. Part No.W631GU8MB12I
BrandWinbond
TWD103.40
Each (In a Pack of 5)
units
1Gbit 128M x 8 bit - 800MHz - - 8bit - 128M VFBGA 78 10.6 x 8.1 x 0.6mm 0.6mm 10.6mm
RS Stock No. 188-2632
Mfr. Part No.W9825G6KH-6I
BrandWinbond
TWD94.40
Each (In a Pack of 5)
units
256Mbit 32M x 8 bit - 166MHz - - 8bit - 32M TSOP 54 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS Stock No. 188-2676
Mfr. Part No.W949D6DBHX5I
BrandWinbond
TWD120.00
Each (In a Pack of 5)
units
512Mbit 64M x 8 bit - 200MHz 16bit - 8bit - 64M VFBGA 60 9.1 x 8.1 x 0.65mm 0.65mm 9.1mm
RS Stock No. 188-2571
Mfr. Part No.W631GU6MB12I
BrandWinbond
TWD79.20
Each (In a Tray of 198)
units
1Gbit 128M x 8 bit - 800MHz - - 8bit - 128M VFBGA 96 13.1 x 7.6 x 0.6mm 0.6mm 13.1mm
RS Stock No. 811-5131
Mfr. Part No.IS42S16800F-7TL
BrandISSI
TWD90.50
Each (In a Pack of 2)
units
128Mbit 8M x 16 - 143MHz 16bit 14bit 16bit 5.4ns 8M TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 188-2782
Mfr. Part No.W971GG8SB25I
BrandWinbond
TWD166.40
Each (In a Pack of 5)
units
1Gbit 128M x 8 bit - - - - 8bit - 128M WBGA 60 12.6 x 8.1 x 0.6mm 0.6mm 12.6mm
RS Stock No. 188-2587
Mfr. Part No.W9751G8KB25I
BrandWinbond
TWD71.60
Each (In a Tray of 209)
units
512Mbit 64M x 8 bit - - - - 8bit - 64M WBGA 60 12.6 x 8.1 x 0.6mm 0.6mm 12.6mm
RS Stock No. 170-2172
Mfr. Part No.IS42S16800F-7TL
BrandISSI
TWD72.20
Each (In a Tray of 108)
units
128Mbit 8M x 16 - 143MHz 16bit 14bit 16bit 5.4ns 8M TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 188-2626
Mfr. Part No.W9464G6KH-5I
BrandWinbond
TWD45.90
Each (In a Pack of 10)
units
64Mbit 8M x 8 bit - 200MHz - - 8bit - 8M TSOP 66 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS Stock No. 811-5113
Mfr. Part No.IS42S16160G-7TLI
BrandISSI
TWD134.00
Each
units
256Mbit 16M x 16 bit - 143MHz 16bit 15bit 16bit 5.4ns 16M TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 188-2599
Mfr. Part No.W9825G6KH-6I
BrandWinbond
TWD83.90
Each (In a Tray of 108)
units
256Mbit 32M x 8 bit - 166MHz - - 8bit - 32M TSOP 54 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS Stock No. 188-2651
Mfr. Part No.W949D2DBJX5I
BrandWinbond
TWD122.00
Each (In a Pack of 5)
units
512Mbit 64M x 8 bit - 200MHz 32bit - 8bit - 64M VFBGA 90 13.1 x 8.1 x 0.65mm 0.65mm 13.1mm
RS Stock No. 188-2600
Mfr. Part No.W9864G6KH-6I
BrandWinbond
TWD45.10
Each (In a Tray of 108)
units
64Mbit 8M x 8 bit - 166MHz - - 8bit - 8M TSOP 54 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS Stock No. 181-8267
Mfr. Part No.S27KS0641DPBHI020
TWD109.50
Each (In a Tray of 338)
units
64Mbit 8M x 8 bit - 333Mbit/s 8bit - 8bit 36ns 8M FBGA 24 8 x 6 x 0.8mm 0.8mm 8mm
RS Stock No. 188-2569
Mfr. Part No.W631GG6MB12I
BrandWinbond
TWD81.80
Each (In a Tray of 198)
units
1Gbit 128M x 8 bit - 800MHz - - 8bit - 128M VFBGA 96 13.1 x 7.6 x 0.6mm 0.6mm 13.1mm
RS Stock No. 188-2585
Mfr. Part No.W972GG8KB25I
BrandWinbond
TWD415.50
Each (In a Tray of 209)
units
2Gbit 256M x 8 bit - - - - 8bit - 256M WBGA 60 12.6 x 8.1 x 0.6mm 0.6mm 12.6mm
RS Stock No. 188-2603
Mfr. Part No.W9812G6KH-6I
BrandWinbond
TWD78.60
Each (In a Pack of 5)
units
128Mbit 16M x 8 bit - 166MHz - - 8bit - 16M TSOP 54 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS Stock No. 188-2576
Mfr. Part No.W9464G6KH-5I
BrandWinbond
TWD39.60
Each (In a Tray of 108)
units
64Mbit 8M x 8 bit - 200MHz - - 8bit - 8M TSOP 66 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS Stock No. 171-2248
Mfr. Part No.W9751G6KB-25/TRAY
BrandWinbond
TWD91.00
Each (In a Pack of 2)
units
512Mbit 32 M x 16 bit DDR2 800MHz 16bit 32bit 16M - 32M WBGA 84 8.1 x 12.6 x 0.8mm 0.8mm 8.1mm
RS Stock No. 173-0302
Mfr. Part No.AS4C4M32S-7BCN
TWD111.10
Each (In a Tray of 190)
units
128Mbit 4M x 32 bit - 133MHz 32bit - 32bit 5.4ns 1M TFBGA 90 8.1 x 13.1 x 0.79mm 0.79mm 8.1mm