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. 188-2577
Mfr. Part No.W949D2DBJX5I
BrandWinbond
£2.293
Each (In a Tray of 240)
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. 188-2765
Mfr. Part No.W631GU6MB12I
BrandWinbond
£2.792
Each (In a Pack of 5)
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. 171-2246
Mfr. Part No.W9725G6KB-25/TRAY
BrandWinbond
£1.775
Each (In a Pack of 2)
Units
256Mbit 16 M x 16 bit DDR2 800MHz 16bit 16bit 16M - 16M WBGA 84 8.1 x 12.6 x 0.8mm 0.8mm 8.1mm
RS Stock No. 188-2580
Mfr. Part No.W9712G6KB25I
BrandWinbond
£1.313
Each (In a Tray of 209)
Units
128Mbit 16M x 8 bit - - - - 8bit - 16M TFBGA 84 12.6 x 8.1 x 0.8mm 0.8mm 12.6mm
RS Stock No. 188-2858
Mfr. Part No.W972GG8KB25I
BrandWinbond
£10.76
Each
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. 188-2832
Mfr. Part No.W9425G6KH-5I
BrandWinbond
£2.108
Each (In a Pack of 5)
Units
256Mbit 32M x 8 bit - 200MHz - - 8bit - 32M TSOP 66 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS Stock No. 188-2573
Mfr. Part No.W631GU8MB12I
BrandWinbond
£2.195
Each (In a Tray of 242)
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. 188-2730
Mfr. Part No.W9712G6KB25I
BrandWinbond
£1.674
Each (In a Pack of 5)
Units
128Mbit 16M x 8 bit - - - - 8bit - 16M TFBGA 84 12.6 x 8.1 x 0.8mm 0.8mm 12.6mm
RS Stock No. 188-2600
Mfr. Part No.W9864G6KH-6I
BrandWinbond
£0.933
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. 188-2660
Mfr. Part No.W9864G6KH-6I
BrandWinbond
£1.188
Each (In a Pack of 5)
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. 188-2587
Mfr. Part No.W9751G8KB25I
BrandWinbond
£1.627
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. 188-2590
Mfr. Part No.W979H6KBVX2I
BrandWinbond
£2.999
Each (In a Tray of 171)
Units
512Mbit 64M x 8 bit - 400MHz 16bit - 8bit - 64M VFBGA 134 11.6 x 10.1 x 0.63mm 0.63mm 11.6mm
RS Stock No. 188-2578
Mfr. Part No.W949D6DBHX5I
BrandWinbond
£2.264
Each (In a Tray of 312)
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. 188-2756
Mfr. Part No.W971GG6SB25I
BrandWinbond
£2.654
Each (In a Pack of 5)
Units
1Gbit 128M x 8 bit - - - - 8bit - 128M WBGA 84 12.6 x 8.1 x 0.8mm 0.8mm 12.6mm
RS Stock No. 188-2626
Mfr. Part No.W9464G6KH-5I
BrandWinbond
£1.049
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. 171-2198
Mfr. Part No.W9725G6KB-25/TRAY
BrandWinbond
£1.611
Each (In a Tray of 209)
Units
256Mbit 16 M x 16 bit DDR2 800MHz 16bit 16bit 16M - 16M WBGA 84 8.1 x 12.6 x 0.8mm 0.8mm 8.1mm
RS Stock No. 188-2581
Mfr. Part No.W971GG6SB25I
BrandWinbond
£2.087
Each (In a Tray of 209)
Units
1Gbit 128M x 8 bit - - - - 8bit - 128M WBGA 84 12.6 x 8.1 x 0.8mm 0.8mm 12.6mm
RS Stock No. 188-2814
Mfr. Part No.W9412G6KH-5I
BrandWinbond
£1.692
Each (In a Pack of 5)
Units
128Mbit 16M x 8 bit - 200MHz - - 8bit - 16M TSOP 66 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS Stock No. 188-2583
Mfr. Part No.W9725G6KB25I
BrandWinbond
£1.48
Each (In a Tray of 209)
Units
256Mbit 32M x 8 bit - - - - 8bit - 32M WBGA 84 12.6 x 8.1 x 0.6mm 0.6mm 12.6mm
RS Stock No. 188-2596
Mfr. Part No.W9812G2KB-6I
BrandWinbond
£4.508
Each (In a Tray of 240)
Units
128Mbit 16M x 8 bit - 166MHz - - 8bit - 16M TFBGA 90 13.05 x 8.05 x 0.6mm 0.6mm 13.05mm
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