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. RS Components offers a range of SDRAM products that vary in memory size from 16Mbit to 2Gbit.

What is the difference between RAM, DRAM, and SDRAM?

RAM or, Random Access Memory, is in almost all computing-capable devices, including 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. 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 in 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.

DRAM, or Dynamic Random Access Memory, is a type of RAM used for short-term data storage and uses one transistor to store data on one capacitor, but the data is lost once the capacitor loses its charge unless it is periodically recharged. This recharging is where the 'dynamic' is taken from. DRAM sends instructions to the processor as soon as it receives them, in contrast to SDRAM, or Synchronous Dynamic Random Access Memory, which is synchronised to the computer's clock. The difference this creates is that instructions join a pipeline of instructions to be processed, allowing for more commands to be received rather than waiting for one process to finish before allowing another to be received. This allows SDRAM to operate at much higher speeds than other forms of RAM.


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Omschrijving Prijs 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-stocknr. 188-2858
FabrikantnummerW972GG8KB25I
FabrikantWinbond
€ 7,56
Each
Aantal stuks
2Gbit 256M x 8 bit - - - - 8bit - 256M WBGA 60 12.6 x 8.1 x 0.6mm 0.6mm 12.6mm
RS-stocknr. 811-5119
FabrikantnummerIS42S16160G-7TL
FabrikantISSI
€ 2,87
Each
Aantal stuks
256Mbit 16M x 16 - 143MHz 16bit 15bit 16bit 5.4ns 16M TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS-stocknr. 188-2597
FabrikantnummerW9812G6KH-5I
FabrikantWinbond
€ 1,54
Each (In a Tray of 108)
Aantal stuks
128Mbit 16M x 8 bit - 200MHz - - 8bit - 16M TSOP 54 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS-stocknr. 188-2573
FabrikantnummerW631GU8MB12I
FabrikantWinbond
€ 1,743
Each (In a Tray of 242)
Aantal stuks
1Gbit 128M x 8 bit - 800MHz - - 8bit - 128M VFBGA 78 10.6 x 8.1 x 0.6mm 0.6mm 10.6mm
RS-stocknr. 170-2172
FabrikantnummerIS42S16800F-7TL
FabrikantISSI
€ 1,914
Each (In a Tray of 108)
Aantal stuks
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-stocknr. 188-2599
FabrikantnummerW9825G6KH-6I
FabrikantWinbond
€ 1,993
Each (In a Tray of 108)
Aantal stuks
256Mbit 32M x 8 bit - 166MHz - - 8bit - 32M TSOP 54 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS-stocknr. 171-2246
FabrikantnummerW9725G6KB-25/TRAY
FabrikantWinbond
€ 1,31
Each (In a Pack of 2)
Aantal stuks
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-stocknr. 188-2575
FabrikantnummerW9425G6KH-5I
FabrikantWinbond
€ 1,993
Each (In a Tray of 108)
Aantal stuks
256Mbit 32M x 8 bit - 200MHz - - 8bit - 32M TSOP 66 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS-stocknr. 811-5131
FabrikantnummerIS42S16800F-7TL
FabrikantISSI
€ 2,505
Each (In a Pack of 2)
Aantal stuks
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-stocknr. 181-8267
FabrikantnummerS27KS0641DPBHI020
€ 2,932
Each (In a Tray of 338)
Aantal stuks
64Mbit 8M x 8 bit - 333Mbit/s 8bit - 8bit 36ns 8M FBGA 24 8 x 6 x 0.8mm 0.8mm 8mm
RS-stocknr. 188-2587
FabrikantnummerW9751G8KB25I
FabrikantWinbond
€ 1,737
Each (In a Tray of 209)
Aantal stuks
512Mbit 64M x 8 bit - - - - 8bit - 64M WBGA 60 12.6 x 8.1 x 0.6mm 0.6mm 12.6mm
RS-stocknr. 188-2651
FabrikantnummerW949D2DBJX5I
FabrikantWinbond
€ 3,17
Each (In a Pack of 5)
Aantal stuks
512Mbit 64M x 8 bit - 200MHz 32bit - 8bit - 64M VFBGA 90 13.1 x 8.1 x 0.65mm 0.65mm 13.1mm
RS-stocknr. 188-2821
FabrikantnummerW9812G2KB-6I
FabrikantWinbond
€ 3,48
Each (In a Pack of 2)
Aantal stuks
128Mbit 16M x 8 bit - 166MHz - - 8bit - 16M TFBGA 90 13.05 x 8.05 x 0.6mm 0.6mm 13.05mm
RS-stocknr. 188-2582
FabrikantnummerW971GG8SB25I
FabrikantWinbond
€ 1,75
Each (In a Tray of 209)
Aantal stuks
1Gbit 128M x 8 bit - - - - 8bit - 128M WBGA 60 12.6 x 8.1 x 0.6mm 0.6mm 12.6mm
RS-stocknr. 188-2600
FabrikantnummerW9864G6KH-6I
FabrikantWinbond
€ 0,864
Each (In a Tray of 108)
Aantal stuks
64Mbit 8M x 8 bit - 166MHz - - 8bit - 8M TSOP 54 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS-stocknr. 188-2788
FabrikantnummerW631GU8MB12I
FabrikantWinbond
€ 1,776
Each (In a Pack of 5)
Aantal stuks
1Gbit 128M x 8 bit - 800MHz - - 8bit - 128M VFBGA 78 10.6 x 8.1 x 0.6mm 0.6mm 10.6mm
RS-stocknr. 188-2576
FabrikantnummerW9464G6KH-5I
FabrikantWinbond
€ 0,794
Each (In a Tray of 108)
Aantal stuks
64Mbit 8M x 8 bit - 200MHz - - 8bit - 8M TSOP 66 22.35 x 10.29 x 1.05mm 1.05mm 22.35mm
RS-stocknr. 170-2174
FabrikantnummerIS42S32400F-7TL
FabrikantISSI
€ 2,656
Each (In a Tray of 108)
Aantal stuks
128Mbit 4M x 32 - 143MHz 32bit 14bit 32bit 6.5ns 4M TSOP 86 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS-stocknr. 181-8347
FabrikantnummerS27KS0641DPBHI020
€ 3,727
Each (In a Pack of 3)
Aantal stuks
64Mbit 8M x 8 bit - 333Mbit/s 8bit - 8bit 36ns 8M FBGA 24 8 x 6 x 0.8mm 0.8mm 8mm
RS-stocknr. 188-2584
FabrikantnummerW972GG6KB25I
FabrikantWinbond
€ 7,43
Each (In a Tray of 209)
Aantal stuks
2Gbit 256M x 8 bit - - - - 8bit - 256M WBGA 84 12.6 x 8.1 x 0.6mm 0.6mm 12.6mm