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

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Omschrijving Prijs 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-stocknr. 767-5963
FabrikantnummerR1WV6416RBG-7SI#B0
30,81 €
Each
Aantal stuks
64Mbit 4M x 16 bit 4M 16bit 70ns - - Yes Asynchronous Surface Mount FBGA 48 8.5 x 11 x 0.8mm 0.8mm
RS-stocknr. 901-5777
FabrikantnummerR1RW0416DSB-0PR#D0
18,16 €
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4Mbit 256K x 16 bit 256K 16bit 10ns 16bit 1MHz Yes - Surface Mount TSOP 44 18.51 x 10.26 x 1mm 1mm
RS-stocknr. 126-6964
FabrikantnummerR1LP0408DSB-5SI#B1
20,24 €
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4Mbit 512K words x 8 bit 512K 8bit 55ns 19bit - Yes - Surface Mount TSOP 32 21.05 x 10.26 x 1.05mm 1.05mm
Nieuw
RS-stocknr. 217-3653
Fabrikantnummer70V25L15PFG
32,082 €
Each (In a Tray of 45)
Aantal stuks
128kbit 8K x 16 8K 16bit 15ns - - - - - - - - -
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RS-stocknr. 217-3691
Fabrikantnummer71V416S15PHGI
3,905 €
Each (In a Pack of 2)
Aantal stuks
4Mbit 256K x 16 256K 16bit 15ns - - - - - - - - -
Nieuw
RS-stocknr. 217-7883
Fabrikantnummer71256SA12TPG
2,806 €
Each (In a Pack of 5)
Aantal stuks
256kbit 32K x 8 32K 8bit 12ns - - - - - - - - -
RS-stocknr. 901-5828
FabrikantnummerR1LP0408DSP-5SI#B0
12,66 €
Each
Aantal stuks
4000kbit 512K x 8 bit 512K 8bit 55ns - - Yes Asynchronous Surface Mount SOP 32 20.95 x 11.5 x 2.75mm 2.75mm
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RS-stocknr. 217-3692
Fabrikantnummer71V416S15PHG
3,145 €
Each (In a Tube of 26)
Aantal stuks
4Mbit 256K x 16 256K 16bit 15ns - - - - - - - - -
RS-stocknr. 126-6974
FabrikantnummerR1WV6416RSA-5SI#B0
72,28 €
Each
Aantal stuks
64Mbit 4M words x 16 bit, 8M words x 8 bit 4M, 8M 8 bit, 16 bit 55ns 21 bit, 22 bit - Yes - Surface Mount TSOP 48 18.5 x 12.1 x 1mm 1mm
RS-stocknr. 901-5786
FabrikantnummerR1RW0416DSB-2LR#D0
16,58 €
Each
Aantal stuks
4Mbit 256K x 16 bit 256K 16bit 12ns 16bit 1MHz Yes - Surface Mount TSOP 44 18.51 x 10.26 x 1mm 1mm
RS-stocknr. 901-5773
FabrikantnummerR1RW0416DSB-0PI#D0
17,36 €
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Aantal stuks
4Mbit 256K x 16 bit 256K 16bit 10ns 16bit 1MHz - - Surface Mount TSOP 44 18.51 x 10.26 x 1mm 1mm
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RS-stocknr. 217-3672
Fabrikantnummer7130LA20JG
11,417 €
Each (In a Tube of 24)
Aantal stuks
8kbit 1K x 8 1K 8bit 20ns - - - - - - - - -
RS-stocknr. 126-6981
FabrikantnummerRMLV0816BGBG-4S2#AC0
15,07 €
Each
Aantal stuks
8Mbit 512k x 16 bit 512k 16bit 45ns 19bit - Yes - Surface Mount FBGA 48 7.58 x 8.58 x 0.8mm 0.8mm
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RS-stocknr. 217-3686
Fabrikantnummer71V416S10PHGI
5,36 €
Each (In a Tube of 26)
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4Mbit 256K x 16 256K 16bit 10ns - - - - - - - - -
RS-stocknr. 901-5745
FabrikantnummerR1RP0416DGE-2LR#B0
13,54 €
Each
Aantal stuks
4Mbit 256K x 16 bit 256K 16bit 12ns 16bit 1MHz - - Surface Mount SOJ 44 28.7 x 10.29 x 2.75mm 2.75mm
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RS-stocknr. 217-3675
Fabrikantnummer7130LA25JGI8
12,12 €
Each
Aantal stuks
8kbit 1K x 8 1K 8bit 25ns - - - - - - - - -
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RS-stocknr. 217-3682
Fabrikantnummer71V416L10PHG
3,79 €
Each (In a Pack of 2)
Aantal stuks
4Mbit 256K x 16 256K 16bit 10ns - - - - - - - - -
Nieuw
RS-stocknr. 217-3695
Fabrikantnummer71V424S10YG
3,70 €
Each (In a Pack of 2)
Aantal stuks
4Mbit 512K x 8 512K 8bit 10ns - - - - - - - - -
Nieuw
RS-stocknr. 217-3664
Fabrikantnummer70V28L15PFG
71,317 €
Each (In a Tray of 6)
Aantal stuks
1024kbit 64K x 16 64K 16bit 15ns - - - - - - - - -
RS-stocknr. 901-5758
FabrikantnummerR1RP0416DSB-2LR#D0
18,22 €
Each
Aantal stuks
4Mbit 256K x 16 bit 256K 16bit 12ns 16bit 1MHz - - Surface Mount TSOP 44 18.51 x 10.26 x 1mm 1mm