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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Beskrivning Pris 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 Mounting Type Package Type Pin Count Dimensions Height
RS-artikelnummer 782-4563
Tillv. art.nrMT46V32M16P-5B :J
VarumärkeMicron
78,81 kr
Each
Enheter
512MB 32M x 16 bit DDR 200MHz 16bit 15bit 16bit 5ns 32M Surface Mount TSOP 66 22.22 x 10.16 x 1.2mm 1.2mm
Nytt
RS-artikelnummer 242-0780
Tillv. art.nrW9751G6NB25I
VarumärkeWinbond
27,288 kr
Each (In a Tray of 209)
Enheter
512Mbit 32Mx16 DDR2 400MHz 16bit - - - - - - - - -
Nytt
RS-artikelnummer 242-0781
Tillv. art.nrW9751G6NB25I
VarumärkeWinbond
33,06 kr
Each (In a Pack of 2)
Enheter
512Mbit 32Mx16 DDR2 400MHz 16bit - - - - - - - - -
RS-artikelnummer 170-2170
Tillv. art.nrIS42S16160G-7TL
VarumärkeISSI
67,403 kr
Each (In a Tray of 108)
Enheter
256Mbit 16M x 16 - 143MHz 16bit 15bit 16bit 5.4ns 16M Surface Mount TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm
RS-artikelnummer 170-2171
Tillv. art.nrIS42S16400J-7TLI
VarumärkeISSI
27,222 kr
Each (In a Tray of 108)
Enheter
64Mbit 4M x 16 bit - 143MHz 16bit 14bit 16bit 5.4ns 4M Surface Mount TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm
RS-artikelnummer 230-8436
Tillv. art.nrAS4C64M16D2A-25BIN
VarumärkeAlliance Memory
54,384 kr
Each (In a Tray of 209)
Enheter
1Gbit 64M x 16 DDR2 400MHz 16bit 13bit - - - Surface Mount FBGA 84 - -
RS-artikelnummer 188-2788
Tillv. art.nrW631GU8MB12I
VarumärkeWinbond
46,452 kr
Each (In a Pack of 5)
Enheter
1Gbit 128M x 8 bit - 800MHz - - 8bit - 128M Surface Mount VFBGA 78 10.6 x 8.1 x 0.6mm 0.6mm
RS-artikelnummer 230-8415
Tillv. art.nrAS4C16M16SA-6TIN
VarumärkeAlliance Memory
48,161 kr
Each (In a Tray of 108)
Enheter
256Mbit 16M x 16 DDR 166MHz 16bit 13bit - - - Surface Mount TSOP 54 - -
Nytt
RS-artikelnummer 242-0775
Tillv. art.nrW631GU8NB12I
VarumärkeWinbond
54,385 kr
Each (In a Pack of 2)
Enheter
1Gbit 128M x 8 DDR3 800MHz 16bit - - - - - - - - -
RS-artikelnummer 230-8429
Tillv. art.nrAS4C4M16SA-6TIN
VarumärkeAlliance Memory
30,845 kr
Each (In a Tray of 108)
Enheter
64Mbit 4M x 16 DDR 200MHz 16bit 13bit - - - Surface Mount TSOP 54 - -
RS-artikelnummer 230-8432
Tillv. art.nrAS4C4M16SA-7BCN
VarumärkeAlliance Memory
35,724 kr
Each (In a Pack of 5)
Enheter
64Mbit 4M x 16 DDR 200MHz 16bit 12bit - - - Surface Mount FBGA 54 - -
RS-artikelnummer 230-8439
Tillv. art.nrAS4C8M16SA-6TIN
VarumärkeAlliance Memory
45,96 kr
Each (In a Pack of 2)
Enheter
128Mbit 8M x 16 DDR 166MHz 16bit 12bit - - - Surface Mount TSOP 54 - -
RS-artikelnummer 188-2575
Tillv. art.nrW9425G6KH-5I
VarumärkeWinbond
30,169 kr
Each (In a Tray of 108)
Enheter
256Mbit 32M x 8 bit - 200MHz - - 8bit - 32M Surface Mount TSOP 66 22.35 x 10.29 x 1.05mm 1.05mm
RS-artikelnummer 811-5125
Tillv. art.nrIS42S16400J-7TLI
VarumärkeISSI
31,83 kr
Each (In a Pack of 2)
Enheter
64Mbit 4M x 16 bit - 143MHz 16bit 14bit 16bit 5.4ns 4M Surface Mount TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm
RS-artikelnummer 230-8428
Tillv. art.nrAS4C32M16SB-7TIN
VarumärkeAlliance Memory
172,86 kr
Each
Enheter
- 32M x 16 DDR 200MHz 16bit 13bit - - - Surface Mount TSOP 54 - -
RS-artikelnummer 811-5131
Tillv. art.nrIS42S16800F-7TL
VarumärkeISSI
43,455 kr
Each (In a Pack of 2)
Enheter
128Mbit 8M x 16 - 143MHz 16bit 14bit 16bit 5.4ns 8M Surface Mount TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm
RS-artikelnummer 230-8440
Tillv. art.nrAS4C8M16SA-7TCN
VarumärkeAlliance Memory
31,656 kr
Each (In a Tray of 108)
Enheter
128Mbit 8M x 16 DDR 166MHz 16bit 12bit - - - Surface Mount TSOP 54 - -
RS-artikelnummer 230-8412
Tillv. art.nrAS4C16M16SA-6BIN
VarumärkeAlliance Memory
64,835 kr
Each (In a Pack of 2)
Enheter
256Mbit 16M x 16 DDR 166MHz 16bit 13bit - - - Surface Mount TFBGA 54 - -
RS-artikelnummer 230-8418
Tillv. art.nrAS4C16M16SA-6TINTR
VarumärkeAlliance Memory
55,025 kr
Each (In a Pack of 2)
Enheter
256Mbit 16M x 16 DDR 166MHz 16bit 13bit - - - Surface Mount TSOP 54 - -
RS-artikelnummer 230-8422
Tillv. art.nrAS4C16M16SA-7TCNTR
VarumärkeAlliance Memory
46,815 kr
Each (In a Pack of 2)
Enheter
256Mbit 16M x 16 DDR 166MHz 16bit 13bit - - - Surface Mount TSOP 54 - -