SRAM

SRAM stands for Static Random Access Memory and is a type of semiconductor memory that uses bistable latching circuitry (flip-flop) to store each bit. It holds data bits in its memory so long as power is being supplied. It cannot hold data if power is removed. SRAM is used where speed or low power are needed. It’s higher density than DRAM, and less complicated structure makes it ideal to use in semiconductor memory scenarios where high capacity memory is used as seen in the working memory within computers.

SRAM is different to DRAM (dynamic RAM, which stores bits in cells consisting of a capacitor and a transistor), due to the fact that SRAM does not have to be refreshed unlike Dynamic which will lose data unless refreshed periodically. Also SRAM is faster and more expensive than DRAM.

SRAM is used for a computer’s cache memory as well as being part of the RAM digital to analogue converter found on a video card. SRAM can be designed with a general CMOS technology process with six transistors (6T memory cell) and no capacitors. Since transistors do not require power to prevent leakage, SRAM does not have to be refreshed on a regular basis:

Features

  • Data is held statically – data is held in the semiconductor memory, no need to refresh data after every read data operation as long as the power is applied to the memory
  • Three operational states which are hold, write and read
  • Bistable (cross-coupled) INVs for storage
  • Access transistors MAL and MAR – access to stored data for read and write
  • Word line, WL, controls access – WL=0 (hold operation), WL=1 (read/write operation)
  • Long data lifetime

Applications

  • Computers
  • Workstations
  • Routers
  • LCD screens and printers
  • Electronics
  • Microprocessors

...
Voir plus Voir moins

Filtres

Afficher 1 - 20 des 606 produits
Nombre de résultats par page
Description Prix Memory Size Organisation Number of Words Number of Bits per Word Maximum Random Access Time Address Bus Width Clock Frequency Low Power Timing Type Mounting Type Package Type Pin Count Dimensions Height
N° de stock RS 538-154
Référence fabricantAS6C8008-55ZIN
6,28 €
Each
Unité
8Mbit 1024k x 8 bit 1M 8bit 55ns 20bit - Yes Asynchronous Surface Mount TSOP 44 18.42 x 10.16 x 1mm 1mm
N° de stock RS 170-0737
Référence fabricantAS6C8008-55ZIN
5,534 €
Each (In a Tray of 135)
Unité
8Mbit 1024k x 8 bit 1M 8bit 55ns 20bit - Yes Asynchronous Surface Mount TSOP 44 18.42 x 10.16 x 1mm 1mm
N° de stock RS 177-5518
Référence fabricantAS6C1008-55SIN
2,199 €
Each (In a Tube of 22)
Unité
1Mbit 128k x 8 bit 128k 8bit 55ns 17bit - Yes Asynchronous Surface Mount SOP 32 20.75 x 11.3 x 2.82mm 2.82mm
N° de stock RS 538-170
Référence fabricantAS6C1008-55SIN
2,39 €
Each (In a Pack of 2)
Unité
1Mbit 128k x 8 bit 128k 8bit 55ns 17bit - Yes Asynchronous Surface Mount SOP 32 20.75 x 11.3 x 2.82mm 2.82mm
N° de stock RS 714-4801
Référence fabricantIDT70V28L20PFGI
MarqueIDT
79,02 €
Each
Unité
1024kbit 64k x 16 bit 64k 16bit 20ns 16bit - Yes Asynchronous Surface Mount TQFP 100 14 x 14 x 1.4mm 1.4mm
N° de stock RS 170-2073
Référence fabricantIDT70V28L20PFGI
MarqueIDT
79,025 €
Each (In a Tray of 6)
Unité
1024kbit 64k x 16 bit 64k 16bit 20ns 16bit - Yes Asynchronous Surface Mount TQFP 100 14 x 14 x 1.4mm 1.4mm
N° de stock RS 811-5175
Référence fabricantIS61WV102416BLL-10TLI
MarqueISSI
20,75 €
Each
Unité
16Mbit 1M x 16 bit 1M 16bit 10ns 20bit - Yes Asynchronous Surface Mount TSOP 48 18.6 x 12.2 x 1.05mm 1.05mm
N° de stock RS 170-2180
Référence fabricantIS61WV102416BLL-10TLI
MarqueISSI
18,659 €
Each (In a Tray of 96)
Unité
16Mbit 1M x 16 bit 1M 16bit 10ns 20bit - Yes Asynchronous Surface Mount TSOP 48 18.6 x 12.2 x 1.05mm 1.05mm
N° de stock RS 170-2049
Référence fabricantIS62C1024AL-35QLI
MarqueISSI
1,759 €
Each (In a Tray of 84)
Unité
1Mbit 128k x 8 bit 128k 8bit 35ns 17bit - Yes Asynchronous Surface Mount SOP 32 20.75 x 11.43 x 3mm 3mm
N° de stock RS 178-4109
Référence fabricant23K256-E/ST
MarqueMicrochip
1,039 €
Each (In a Tube of 100)
Unité
256kbit 32768 x 8 bit 32768 8bit 50ns 16bit 20MHz - Synchronous Surface Mount TSSOP 8 4.5 x 3.1 x 1.05mm 1.05mm
N° de stock RS 391-680
Référence fabricantIS62C1024AL-35QLI
MarqueISSI
2,035 €
Each (In a Pack of 2)
Unité
1Mbit 128k x 8 bit 128k 8bit 35ns 17bit - Yes Asynchronous Surface Mount SOP 32 20.75 x 11.43 x 3mm 3mm
N° de stock RS 823-4440
Référence fabricant23K256-E/ST
MarqueMicrochip
1,166 €
Each (In a Pack of 5)
Unité
256kbit 32768 x 8 bit 32768 8bit 50ns 16bit 20MHz - Synchronous Surface Mount TSSOP 8 4.5 x 3.1 x 1.05mm 1.05mm
N° de stock RS 188-5334
Référence fabricantCY7C1021D-10ZSXI
2,225 €
Each (In a Tray of 135)
Unité
1Mbit 128k x 8 bit 128k 8bit 10ns 16bit 100MHz - Asynchronous Surface Mount TSOP 44 18.51 x 10.26 x 1.04mm 1.04mm
N° de stock RS 124-2949
Référence fabricantCY7C1021D-10ZSXI
2,83 €
Each (In a Pack of 2)
Unité
1Mbit 64k x 16 bit 64k 16bit 10ns 16bit 100MHz Yes Asynchronous Surface Mount TSOP 44 18.51 x 10.26 x 1.04mm 1.04mm
N° de stock RS 803-2181
Référence fabricant23LCV1024-I/SN
MarqueMicrochip
2,142 €
Each (In a Pack of 5)
Unité
1Mbit 128k x 8 bit 128k 8bit 5ns 24bit 20MHz Yes - Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 1.25mm
N° de stock RS 744-4561
Référence fabricantAS6C4008-55PCN
4,70 €
Each
Unité
4Mbit 512k x 8 bit 512k 8bit 55ns 19bit - Yes Asynchronous Through Hole PDIP 32 41.91 x 13.818 x 3.81mm 3.81mm
N° de stock RS 811-5181
Référence fabricantIS61WV25616BLL-10TLI
MarqueISSI
3,08 €
Each (In a Pack of 2)
Unité
4Mbit 256k x 16 bit 256k 16bit 10ns 18bit - - Asynchronous Surface Mount TSOP 44 18.54 x 10.29 x 1.05mm 1.05mm
N° de stock RS 391-646
Référence fabricantIS62C256AL-45TLI
MarqueISSI
1,225 €
Each (In a Pack of 4)
Unité
256kbit 32k x 8 bit 32k 8bit 45ns 15bit - Yes Asynchronous Surface Mount TSOP 28 8.1 x 11.9 x 1mm 1mm
N° de stock RS 912-6849
Référence fabricant23LCV1024-I/SN
MarqueMicrochip
2,095 €
Each (In a Tube of 100)
Unité
1Mbit 128k x 8 bit 128k 8bit 5ns 24bit 20MHz Yes - Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 1.25mm
N° de stock RS 714-4826
Référence fabricantIDT7132LA35PDG
MarqueIDT
13,39 €
Each
Unité
16kbit 2k x 8 bit 2k 8bit 35ns 8bit - Yes Asynchronous Through Hole PDIP 48 61.7 x 15.24 x 3.8mm 3.8mm