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. 192-1217
FabrikantnummerDS1225AD-200+
FabrikantMaxim Integrated
15,096 €
Each (In a Tube of 12)
Aantal stuks
64kbit 8k x 8 bit 8k 8bit 200ns 13bit - Yes Asynchronous Through Hole EDIP 28 39.37 x 18.8 x 9.35mm 9.35mm
RS-stocknr. 923-7598
FabrikantnummerDS1225AD-200+
FabrikantMaxim Integrated
13,853 €
Each (In a Tube of 12)
Aantal stuks
64kbit 8k x 8 bit 8k 8bit 200ns 13bit - Yes Asynchronous Through Hole EDIP 28 39.37 x 18.8 x 9.35mm 9.35mm
RS-stocknr. 192-1214
FabrikantnummerDS1225AB-200+
FabrikantMaxim Integrated
14,685 €
Each (In a Tube of 12)
Aantal stuks
64kbit 8k x 8 bit 8k 8bit 70ns 8bit - Yes - Through Hole EDIP 28 39.37 x 18.29 x 10.67mm 10.67mm
RS-stocknr. 192-1655
FabrikantnummerDS1225AD-200+
FabrikantMaxim Integrated
17,93 €
Each
Aantal stuks
64kbit 8k x 8 bit 8k 8bit 200ns 13bit - Yes Asynchronous Through Hole EDIP 28 39.37 x 18.8 x 9.35mm 9.35mm
RS-stocknr. 923-7756
FabrikantnummerDS1245AB-100+
FabrikantMaxim Integrated
23,955 €
Each (In a Tube of 11)
Aantal stuks
1024kbit 128k x 8 bit 128k 8bit 70ns 8bit - Yes - Through Hole EDIP 32 44.2 x 18.8 x 10.92mm 10.92mm
RS-stocknr. 192-1581
FabrikantnummerDS1225AB-200+
FabrikantMaxim Integrated
17,44 €
Each
Aantal stuks
64kbit 8k x 8 bit 8k 8bit 70ns 8bit - Yes - Through Hole EDIP 28 39.37 x 18.29 x 10.67mm 10.67mm
RS-stocknr. 785-8691
FabrikantnummerDS1225AD-200+
FabrikantMaxim Integrated
14,96 €
Each
Aantal stuks
64kbit 8k x 8 bit 8k 8bit 200ns 13bit - Yes Asynchronous Through Hole EDIP 28 39.37 x 18.8 x 9.35mm 9.35mm
RS-stocknr. 189-7457
FabrikantnummerDS1220AD-150+
FabrikantMaxim Integrated
11,444 €
Each (In a Tube of 14)
Aantal stuks
16kbit 2k x 8 bit 2k 8bit 100ns 8bit - Yes - Through Hole EDIP 24 38.1 x 18.29 x 10.67mm 10.67mm
RS-stocknr. 189-7465
FabrikantnummerDS1230Y-70IND+
FabrikantMaxim Integrated
20,258 €
Each (In a Tube of 12)
Aantal stuks
256kbit 32k x 8 bit 32k 8bit 70ns 15bit - Yes - Through Hole EDIP 28 39.37 x 18.8 x 10.67mm 10.67mm
RS-stocknr. 192-1228
FabrikantnummerDS1250Y-70+
FabrikantMaxim Integrated
71,206 €
Each (In a Tube of 11)
Aantal stuks
4096kbit 512k x 8 bit 512k 8bit 70ns 8bit - Yes - Through Hole EDIP 32 44.2 x 18.8 x 10.92mm 10.92mm
RS-stocknr. 192-1225
FabrikantnummerDS1245AB-120+
FabrikantMaxim Integrated
25,43 €
Each (In a Tube of 11)
Aantal stuks
1024kbit 128k x 8 bit 128k 8bit 70ns 8bit - Yes - Through Hole EDIP 32 44.2 x 18.8 x 10.92mm 10.92mm
RS-stocknr. 192-1555
FabrikantnummerDS1220AD-200IND+
FabrikantMaxim Integrated
14,41 €
Each
Aantal stuks
16kbit 2k x 8 bit 2k 8bit 100ns 8bit - Yes - Through Hole EDIP 24 38.1 x 18.29 x 10.67mm 10.67mm
RS-stocknr. 192-1603
FabrikantnummerDS1225AB-85+
FabrikantMaxim Integrated
17,32 €
Each
Aantal stuks
64kbit 8k x 8 bit 8k 8bit 85ns 8bit - Yes - Through Hole EDIP 28 39.37 x 18.29 x 10.67mm 10.67mm
RS-stocknr. 189-9175
FabrikantnummerDS1245Y-100+
FabrikantMaxim Integrated
31,12 €
Each
Aantal stuks
1Mbit 128k x 8 bit 128k 8bit 100ns 17bit - Yes Asynchronous Through Hole EDIP 32 44.2 x 18.8 x 9.9mm 9.9mm
RS-stocknr. 192-1574
FabrikantnummerDS1245AB-120+
FabrikantMaxim Integrated
29,76 €
Each
Aantal stuks
1024kbit 128k x 8 bit 128k 8bit 70ns 8bit - Yes - Through Hole EDIP 32 44.2 x 18.8 x 10.92mm 10.92mm
RS-stocknr. 797-9417
FabrikantnummerDS1250Y-70IND+
FabrikantMaxim Integrated
79,74 €
Each
Aantal stuks
4096kbit 512k x 8 bit 512k 8bit 70ns 8bit - Yes - Through Hole EDIP 32 44.2 x 18.8 x 10.92mm 10.92mm
RS-stocknr. 189-7471
FabrikantnummerDS1245Y-70IND+
FabrikantMaxim Integrated
26,774 €
Each (In a Tube of 11)
Aantal stuks
1Mbit 128k x 8 bit 128k 8bit 70ns 17bit - Yes Asynchronous Through Hole EDIP 32 44.2 x 18.8 x 9.9mm 9.9mm
RS-stocknr. 189-7456
FabrikantnummerDS1220AD-100IND+
FabrikantMaxim Integrated
11,189 €
Each (In a Tube of 14)
Aantal stuks
16kbit 2k x 8 bit 2k 8bit 100ns 8bit - Yes - Through Hole EDIP 24 38.1 x 18.29 x 10.67mm 10.67mm
RS-stocknr. 189-9323
FabrikantnummerDS1230Y-70IND+
FabrikantMaxim Integrated
23,92 €
Each
Aantal stuks
256kbit 32k x 8 bit 32k 8bit 70ns 15bit - Yes - Through Hole EDIP 28 39.37 x 18.8 x 10.67mm 10.67mm
RS-stocknr. 189-9133
FabrikantnummerDS1220AD-100IND+
FabrikantMaxim Integrated
13,30 €
Each
Aantal stuks
16kbit 2k x 8 bit 2k 8bit 100ns 8bit - Yes - Through Hole EDIP 24 38.1 x 18.29 x 10.67mm 10.67mm