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

...
Read more Read less

Filter

Visar 1 - 20 av 488 produkter
Resultat per sida
Beskrivning Pris 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
RS-artikelnummer 767-5963
Tillv. art.nrR1WV6416RBG-7SI#B0
318,68 kr
Each
Enheter
64Mbit 4M x 16 bit 4M 16bit 70ns - - Yes Asynchronous Surface Mount FBGA 48 8.5 x 11 x 0.8mm 0.8mm
RS-artikelnummer 744-4561
Tillv. art.nrAS6C4008-55PCN
VarumärkeAlliance Memory
55,56 kr
Each
Enheter
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
RS-artikelnummer 170-0895
Tillv. art.nrAS6C4008-55PCN
VarumärkeAlliance Memory
50,49 kr
Each (In a Tube of 13)
Enheter
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
RS-artikelnummer 177-5513
Tillv. art.nrAS6C6264-55PCN
VarumärkeAlliance Memory
31,594 kr
Each (In a Tube of 15)
Enheter
64kbit 8k x 8 bit 8k 8bit 55ns 13bit - Yes Asynchronous Through Hole PDIP 28 36.32 x 13.21 x 3.81mm 3.81mm
RS-artikelnummer 538-158
Tillv. art.nrAS6C6264-55PCN
VarumärkeAlliance Memory
34,55 kr
Each (In a Pack of 2)
Enheter
64kbit 8k x 8 bit 8k 8bit 55ns 13bit - Yes Asynchronous Through Hole PDIP 28 36.32 x 13.21 x 3.81mm 3.81mm
RS-artikelnummer 769-7349
Tillv. art.nr23LC1024-I/ST
VarumärkeMicrochip
27,515 kr
Each (In a Pack of 2)
Enheter
1Mbit 128k x 8 bit 128k 8bit - 24bit 20MHz Yes Synchronous Surface Mount TSSOP 8 3.1 x 4.5 x 1.05mm 1.05mm
RS-artikelnummer 912-2859
Tillv. art.nr23LC1024-I/ST
VarumärkeMicrochip
27,172 kr
Each (In a Tube of 100)
Enheter
1Mbit 128k x 8 bit 128k 8bit - 24bit 20MHz Yes Synchronous Surface Mount TSSOP 8 3.1 x 4.5 x 1.05mm 1.05mm
RS-artikelnummer 803-2272
Tillv. art.nr23LCV1024-I/P
VarumärkeMicrochip
31,416 kr
Each (In a Pack of 5)
Enheter
1Mbit 128k x 8 bit 128k 8bit 5ns 24bit 20MHz Yes - Through Hole PDIP 8 10.16 x 7.11 x 4.95mm 4.95mm
RS-artikelnummer 912-6710
Tillv. art.nr23LCV1024-I/P
VarumärkeMicrochip
31,153 kr
Each (In a Tube of 60)
Enheter
1Mbit 128k x 8 bit 128k 8bit 5ns 24bit 20MHz Yes - Through Hole PDIP 8 10.16 x 7.11 x 4.95mm 4.95mm
RS-artikelnummer 193-8454
Tillv. art.nrCY62146ELL-45ZSXI
79,629 kr
Each (In a Tray of 135)
Enheter
4Mbit 256k x 16 bit 256k 16bit 45ns 16bit 1MHz Yes Asynchronous Surface Mount TSOP II 44 18.517 x 10.262 x 1.044mm 1.04mm
RS-artikelnummer 198-8005
Tillv. art.nrCY7C1041GN30-10ZSXIT
44,78 kr
Each (On a Reel of 1000)
Enheter
4096kbit 256k x 16 bit 256k 16bit 10ns - - - - - - - - -
RS-artikelnummer 194-8968
Tillv. art.nrCY7C1441KV33-133AXI
366,71 kr
Each
Enheter
36Mbit 1M x 36 - 36bit 6.5ns - - - - - - - - -
RS-artikelnummer 171-0975
Tillv. art.nrCY62148EV30LL-45BVXI
34,763 kr
Each (In a Tray of 480)
Enheter
4Mbit 512k x 8 bit 512k 8bit 45ns 8bit - Yes - Surface Mount VFBGA 36 6 x 8 x 0.84mm 0.84mm
RS-artikelnummer 538-215
Tillv. art.nrAS7C34096A-12TIN
VarumärkeAlliance Memory
31,63 kr
Each
Enheter
4Mbit 512k x 8 bit 512k 8bit 12ns 19bit - Yes Asynchronous Surface Mount TSOP 44 18.54 x 10.29 x 1.05mm 1.05mm
RS-artikelnummer 124-2945
Tillv. art.nrCY62158ELL-45ZSXI
122,85 kr
Each
Enheter
8Mbit 1M x 8 bit 1M 8bit 45ns 8bit 1MHz Yes - Surface Mount TSOP 44 18.51 x 10.26 x 1.04mm 1.04mm
RS-artikelnummer 182-3293
Tillv. art.nrCY7C1041G30-10ZSXE
76,977 kr
Each (In a Tray of 135)
Enheter
4Mbit 256k x 16 bit 256k 16bit 10ns - 1MHz - Asynchronous Surface Mount TSOP 44 18.51 x 10.26 x 1.05mm 1.05mm
RS-artikelnummer 811-5188
Tillv. art.nrIS61WV25616BLL-10BLI
VarumärkeISSI
34,01 kr
Each (In a Pack of 2)
Enheter
4Mbit 256k x 16 bit 256k 16bit 10ns 18bit - - Asynchronous Surface Mount TFBGA 48 8.1 x 6.1 x 0.9mm 0.9mm
RS-artikelnummer 194-8960
Tillv. art.nrCY7C1399BN-12VXI
15,818 kr
Each (In a Pack of 5)
Enheter
256kbit 32k x 8 32k 8bit 12ns - - - - - - - - -
RS-artikelnummer 538-221
Tillv. art.nrAS7C4096A-12TIN
VarumärkeAlliance Memory
64,09 kr
Each
Enheter
4Mbit 512k x 8 bit 512k 8bit 12ns 19bit - Yes Asynchronous Surface Mount TSOP 44 18.54 x 10.29 x 1.05mm 1.05mm
RS-artikelnummer 193-8461
Tillv. art.nrCY7C1018DV33-10VXIT
30,03 kr
Each (In a Pack of 5)
Enheter
1Mbit 128k x 8 bit 128k 8bit 10ns 8bit 1MHz - Asynchronous Through Hole SOJ 32 0.810 x 0.292 x 0.103in 2.62mm