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Synchronous dynamic random-access memory (SDRAM) is any dynamic random-access memory (DRAM) where the operation of its external pin interface is coordinated by an externally supplied clock signal. DRAM integrated circuits (ICs), between the mid-1970s and -1990s typically had an asynchronous interface, where responses to changes in control signal inputs occur as soon as they are received. SDRAM has a synchronous interface, meaning that a clock signal must be received before it responds to the control inputs. The interfaces of SDRAM ICs is therefore synchronous to the clock signal used. In the family of devices standardized by JEDEC, which are called synchronous DRAMs (SDRAMs), the clock signal is used to drive an internal finite state machine that pipelines incoming commands. The memory is

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  • Synchronous dynamic random-access memory
  • إس دي رام
  • Synchronous Dynamic Random Access Memory
  • SDRAM
  • SDRAM
  • SDRAM
  • SDRAM
  • SDRAM
  • SDRAM
  • SDRAM
  • SDRAM
  • SDRAM
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  • SDRAM DDR SDRAM ومشهورة باسم DDR فقط RDRAM
  • SDRAM (siglas en inglés de synchronous dynamic random-access memory) es una familia de memorias dinámicas de acceso aleatorio (DRAM) que tienen una interfaz síncrona, usadas ya desde principios de 1970.
  • La SDRAM, acronimo di Synchronous Dynamic Random Access Memory, ovvero DRAM sincrona, è un tipo di RAM utilizzata nelle DIMM per la memoria principale dei personal computer di tipo Pentium e successivi. Un segnale di clock temporizza e sincronizza le operazioni di scambio di dati con il processore, raggiungendo una velocità almeno tre volte maggiore delle SIMM con EDO RAM. Si differenziano dalle DRAM normali per il fatto che l'accesso è sincrono, ovvero governato dal clock.
  • SDRAM staat voor synchroon dynamisch directe-toegangsgeheugen (synchronous dynamic random access memory), een type computergeheugen dat behoort tot de familie DRAM (dynamic random-access memory).
  • SDRAM (ang. Synchronous Dynamic Random Access Memory) – rodzaj pamięci DRAM pracującej synchronicznie z magistralą systemową, co odróżnia ją od klasycznej pamięci DRAM typu FPM i EDO, które pracują asynchronicznie.
  • 同步動態隨機存取記憶體(synchronous dynamic random-access memory,简称SDRAM)是有一個同步接口的動態隨機存取記憶體(DRAM)。通常DRAM是有一个异步接口的,这样它可以随时响应控制输入的变化。而SDRAM有一个同步接口,在响应控制输入前会等待一个时钟信号,这样就能和计算机的系统总线同步。时钟被用来驱动一个有限状态机,对进入的指令进行流水线(Pipeline)操作。这使得SDRAM与没有同步接口的异步DRAM(asynchronous DRAM)相比,可以有一个更复杂的操作模式。 流水线意味着芯片可以在处理完之前的指令前,接受一个新的指令。在一个写入的流水线中,写入命令在另一个指令执行完之后可以立刻执行,而不需要等待数据写入存储队列的时间。在一个读取的流水线中,需要的数据在读取指令发出之后固定数量的时钟频率后到达,而这个等待的过程可以发出其它附加指令。这种延迟被称为等待时间(Latency),在为计算机购买記憶體时是一个很重要的参数。 SDRAM在计算机中被广泛使用,从起初的SDRAM到之后一代的DDR(或称DDR1),然后是DDR2和DDR3进入大众市场,2015年開始DDR4進入消費市场。
  • Synchronous dynamic random-access memory (SDRAM) is any dynamic random-access memory (DRAM) where the operation of its external pin interface is coordinated by an externally supplied clock signal. DRAM integrated circuits (ICs), between the mid-1970s and -1990s typically had an asynchronous interface, where responses to changes in control signal inputs occur as soon as they are received. SDRAM has a synchronous interface, meaning that a clock signal must be received before it responds to the control inputs. The interfaces of SDRAM ICs is therefore synchronous to the clock signal used. In the family of devices standardized by JEDEC, which are called synchronous DRAMs (SDRAMs), the clock signal is used to drive an internal finite state machine that pipelines incoming commands. The memory is
  • Synchronous Dynamic Random Access Memory (engl, kurz SDRAM, dt. „synchrones DRAM“) ist eine Halbleiterspeicher-Variante, die beispielsweise als Arbeitsspeicher in Computern eingesetzt wird. Die Kurzform SDRAM kann auch eine mit SDRAM-Chips bestückte DIMM- bzw. SO-DIMM-Leiterplatte bezeichnen.
  • SDRAM ou Synchronous Dynamic Random Access Memory (en français, mémoire dynamique synchrone à accès aléatoire) est un type particulier de mémoire vive ayant une interface de communication synchrone. Jusqu'à son apparition, les mémoires DRAM étaient asynchrones, cela signifie qu'elles n'attendaient pas un signal de l'horloge du bus pour réagir aux signaux d'entrée, donc qu'elles n'étaient pas synchronisées avec le bus. Selon le contexte, le sigle SDRAM peut signifier :
  • SDRAM (Synchronous Dynamic Random Access Memory) は、システムバスに同期して動作するDRAM (Dynamic Random Access Memory)。シンクロナスDRAMとも。初期のDRAMのインタフェースは非同期式であり、制御入力の変化に反応して可能な限り素早く応答するようになっていた。SDRAMのインタフェースは同期式であり、制御入力に応答する前にクロック信号を待つため、コンピュータのシステムバスに同期して動作する。クロックは入ってくる命令をパイプライン化する内部の有限状態機械を駆動するのに使われる。そのためSDRAMのチップは非同期DRAMよりも複雑な操作パターンを持つことができ、より高速に動作できる。 SDRAMはコンピュータで広く使われている。元々のSDRAMだけでなく、そこから発展した世代であるDDR (DDR1)、DDR2、DDR3、DDR4 が量産されている。
  • SDRAM (англ. Synchronous Dynamic Random Access Memory — синхронная динамическая память с произвольным доступом) — тип запоминающего устройства, использующегося в компьютере и других цифровых устройствах в качестве ОЗУ. Циклы обновления выполняются сразу для целой строки, в отличие от предыдущих типов DRAM, обновлявших данные по внутреннему счётчику, используя способ обновления по команде CAS перед RAS.
  • Synchronous dynamic random access memory (SDRAM) é uma memória de acesso dinâmico randômico (DRAM) que é sincronizada com o barramento do sistema, ou mais precisamente, com a transição de subida do clock da placa-mãe. Permite uma operação mais justa com a CPU pois o CPU saberá exatamente quando os dados estarão disponíveis. SDRAM é largamente usada em computadores; a partir da original SDRAM, mais gerações de DDR (ou DDR1) e então DDR2 e DDR3 entraram no mercado de massas, com a DDR4 atualmente sendo desenvolvida e prevendo-se estar disponível em 2013.
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