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 281 - 300 des 625 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 125-6973
Référence fabricantCY62128EV30LL-45SXA
3,815 €
Each (In a Pack of 2)
Unité
1Mbit 128k x 8 bit 128k 8bit 45ns 8bit - Yes - Surface Mount SOIC 32 20.751 x 11.43 x 2.895mm 2.895mm
N° de stock RS 146-3208
Référence fabricant47C16-I/P
MarqueMicrochip
0,719 €
Each (In a Tube of 60)
Unité
16kbit 2048k x 8 bit 2048k 8bit - - 1000kHz Yes Synchronous Through Hole DIP 8 10.2 x 7.1 x 4.83mm 4.83mm
N° de stock RS 124-2937
Référence fabricantCY62128EV30LL-45ZAXI
1,676 €
Each (In a Pack of 5)
Unité
1Mbit 128k x 8 bit 128k 8bit 45ns 8bit 1MHz Yes - Surface Mount STSOP 32 11.9 x 8.1 x 1.05mm 1.05mm
Nouveau
N° de stock RS 194-8969
Référence fabricantCY7C1460KV33-250AXI
53,019 €
Each (In a Tray of 72)
Unité
- - - - - - - - - - - - - -
Nouveau
N° de stock RS 217-3660
Référence fabricant70V27L15PFG
59,39 €
Each
Unité
512kbit 32K x 16 32K 16bit 15ns - - - - - - - - -
N° de stock RS 170-2184
Référence fabricantIS61WV25616BLL-10BLI
MarqueISSI
3,333 €
Each (In a Tray of 480)
Unité
4Mbit 256k x 16 bit 256k 16bit 10ns 18bit - - Asynchronous Surface Mount TFBGA 48 8.1 x 6.1 x 0.9mm 0.9mm
Nouveau
N° de stock RS 217-3687
Référence fabricant71V416S10PHGI
6,03 €
Each (In a Pack of 2)
Unité
4Mbit 256K x 16 256K 16bit 10ns - - - - - - - - -
N° de stock RS 194-8912
Référence fabricantCY7C1021D-10VXI
2,91 €
Each (In a Pack of 5)
Unité
1Mbit 64k x 16 bit 64k 16bit 10ns 16bit 1MHz - Asynchronous Surface Mount SOJ 44 1.13 x 0.405 x 0.12in 3.05mm
Nouveau
N° de stock RS 194-8951
Référence fabricantCY7C1372KV33-167AXI
25,486 €
Each (In a Tray of 72)
Unité
- - - - - - - - - - - - - -
N° de stock RS 823-4532
Référence fabricant23LC512-I/ST
MarqueMicrochip
1,298 €
Each (In a Pack of 5)
Unité
512kbit 64k x 8 bit 64k 8bit 25ns 16bit 20MHz - Synchronous Through Hole TSSOP 8 0.4 x 0.28 x 0.195in 4.95mm
N° de stock RS 193-8470
Référence fabricantCY7C10612G30-10ZSXI
15,34 €
Each
Unité
16Mbit 1M x 16 bit 1 M 16bit 10ns 16bit 100MHz - Asynchronous Surface Mount TSOP II 54 22.313 x 10.058 x 0.95mm 0.95mm
Nouveau
N° de stock RS 194-8965
Référence fabricantCY7C1440KV33-250AXC
68,928 €
Each (In a Tray of 72)
Unité
- - - - - - - - - - - - - -
N° de stock RS 126-6969
Référence fabricantR1LV1616HSA-4SI#B1
48,10 €
Each
Unité
16Mbit 1M words x 16 bit, 2M words x 8 bit 1M, 2M 8 bit, 16 bit 45ns 19 bit, 20 bit - Yes - Surface Mount TSOP 48 18.5 x 12.1 x 1.05mm 1.05mm
Nouveau
N° de stock RS 217-3688
Référence fabricant71V416S10PHG
3,322 €
Each (In a Tube of 26)
Unité
4Mbit 256K x 16 256K 16bit 10ns - - - - - - - - -
Nouveau
N° de stock RS 217-3656
Référence fabricant70V25L25PFGI
35,70 €
Each
Unité
128kbit 8K x 16 8K 16bit 25ns - - - - - - - - -
Nouveau
N° de stock RS 194-8895
Référence fabricantCY7C1010DV33-10ZSXI
3,307 €
Each (In a Tray of 135)
Unité
- - - - - - - - - - - - - -
Nouveau
N° de stock RS 194-8896
Référence fabricantCY7C1010DV33-10ZSXI
3,485 €
Each (In a Pack of 2)
Unité
- - - - - - - - - - - - - -
Nouveau
N° de stock RS 194-8897
Référence fabricantCY7C1011DV33-10BVXI
4,056 €
Each (In a Tray of 480)
Unité
- - - - - - - - - - - - - -
N° de stock RS 193-8452
Référence fabricantCY62126EV30LL-45ZSXIT
1,385 €
Each (On a Reel of 1000)
Unité
1Mbit 64k x 16 bit 64k 16bit 45ns 16bit 1MHz Yes Asynchronous Surface Mount TSOP II 44 18.517 x 10.262 x 1.044mm 1.04mm
Nouveau
N° de stock RS 194-8916
Référence fabricantCY7C1041G30-10BVXI
5,335 €
Each (In a Pack of 2)
Unité
- - - - - - - - - - - - - -