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 include:
• 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
• Simplicity
• Faster – quick and easy to control
• Used as cache memory
• Large size
• Price – expensive as it uses more chips than DRAM for the same amount of storage space
• High power Consumption
• Reliability
Disadvantages include:
• Capacity
• Varying power consumption
Can be found in the following:
• Computers
• Workstations
• Routers
• LCD screens and printers
• Electronics
• Microprocessor

...
Read more Read less

Filters

Viewing 441 - 460 of 517 products
Results per page
Description Price 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 Stock No. 181-7451
Mfr. Part No.CY7C1061GE30-10ZSXI
kr 230,594
Each (In a Tray of 108)
Units
16Mbit 1M x 16 bit 1M 16bit 10ns - - - Asynchronous Surface Mount TSOP 54 22.51 x 10.26 x 1.05mm 1.05mm
RS Stock No. 538-192
Mfr. Part No.AS7C34098A-12JIN
kr 45,36
Each
Units
4Mbit 256K words x 16 bit 256K 16bit 12ns 18bit - Yes Asynchronous Surface Mount SOJ 44 28.7 x 10.29 x 2.92mm 2.92mm
RS Stock No. 797-9417
Mfr. Part No.DS1250Y-70IND+
kr 800,29
Each
Units
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 Stock No. 170-0894
Mfr. Part No.AS7C31024B-12TCN
kr 20,503
Each (In a Tray of 156)
Units
1Mbit 128K x 8 bit 128K 8bit 12ns 17bit - Yes Asynchronous Surface Mount TSOP 32 18.5 x 8.1 x 1.05mm 1.05mm
RS Stock No. 182-3290
Mfr. Part No.CY7C1041G-10VXI
kr 53,011
Each (In a Tube of 17)
Units
4Mbit 256K x 16 bit 256K 16bit 10ns - 100MHz - Asynchronous Surface Mount SOJ 44 1.13 x 0.405 x 0.11in 2.79mm
New
RS Stock No. 193-8463
Mfr. Part No.CY7C1021D-10VXIT
kr 27,616
Each (In a Pack of 5)
Units
1Mbit 64 k x 16 bit 64 k 16bit 10ns 16bit 1MHz - Asynchronous Through Hole SOJ 85 1.12 x 0.395 x 0.095in 2.41mm
RS Stock No. 170-0737
Mfr. Part No.AS6C8008-55ZIN
kr 50,407
Each (In a Tray of 135)
Units
8Mbit 1024K words x 8 bit 1M 8bit 55ns 20bit - Yes Asynchronous Surface Mount TSOP 44 18.42 x 10.16 x 1mm 1mm
RS Stock No. 146-3211
Mfr. Part No.47L04-I/P
BrandMicrochip
kr 5,581
Each (In a Tube of 60)
Units
4kbit 512K x 8 - 8bit - - 1000kHz Yes Synchronous Through Hole DIP 8 10.2 x 7.1 x 4.83mm 4.83mm
RS Stock No. 178-4051
Mfr. Part No.23LCV1024-I/ST
BrandMicrochip
kr 20,494
Each (In a Tube of 100)
Units
1Mbit 128K x 8 bit - 8bit 5ns 24bit 20MHz Yes - Surface Mount TSSOP 8 3.1 x 4.5 x 1.05mm 1.05mm
RS Stock No. 124-2943
Mfr. Part No.CY62157EV30LL-45BVXI
kr 86,24
Each
Units
8Mbit 1M x 8 bit, 512K x 16 bit 512K 8 bit, 16 bit 45ns 8 bit, 16 bit 1MHz Yes - Surface Mount VFBGA 48 6 x 8 x 0.79mm 0.79mm
New
RS Stock No. 193-8471
Mfr. Part No.CY7C199D-10VXIT
kr 13,59
Each (On a Reel of 1000)
Units
256kbit 32 k x 8 bit 32 k 8bit 10ns 8bit 1MHz - Asynchronous Through Hole SOJ 85 11.9 x 8.1 x 1mm 1mm
New
RS Stock No. 200-9831
Mfr. Part No.48LM01-I/SM
BrandMicrochip
kr 40,743
Each (In a Pack of 3)
Units
1Mbit 128k x 8 1, 31, 072 8bit 10ns - - - - - - - - -
RS Stock No. 189-7471
Mfr. Part No.DS1245Y-70IND+
kr 266,344
Each (In a Tube of 11)
Units
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 Stock No. 188-5322
Mfr. Part No.CY62146EV30LL-45ZSXI
kr 41,868
Each (In a Tray of 135)
Units
4Mbit 512k x 8 bit 512k 8bit 45ns 16bit 1MHz Yes - Surface Mount TSOP 44 18.51 x 10.26 x 1.04mm 1.04mm
RS Stock No. 811-5172
Mfr. Part No.IS61C6416AL-12TLI
BrandISSI
kr 16,733
Each (In a Pack of 3)
Units
1Mbit 64k x 16 64k 16bit 12ns 16bit - - - Surface Mount TSOP 44 18.52 x 10.29 x 1.05mm 1.05mm
RS Stock No. 178-4054
Mfr. Part No.23LCV512-I/SN
BrandMicrochip
kr 14,197
Each (In a Tube of 100)
Units
512kbit 64K x 8 bit - - 5ns 16bit 20MHz Yes - Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 1.25mm
New
RS Stock No. 193-8461
Mfr. Part No.CY7C1018DV33-10VXIT
kr 22,392
Each (In a Pack of 5)
Units
1Mbit 128 k x 8 bit 128 k 8bit 10ns 8bit 1MHz - Asynchronous Through Hole SOJ 32 0.810 x 0.292 x 0.103in 2.62mm
RS Stock No. 126-7312
Mfr. Part No.RMLV1616AGSD-5S2#AC0
kr 233,40
Each
Units
16Mbit 1M words x 16 bit, 2M words x 8 bit 1M, 2M 8 bit, 16 bit 55ns 19 bit, 20 bit - Yes - Surface Mount TSOP 52 10.89 x 8.99 x 1mm 1mm
New
RS Stock No. 198-8001
Mfr. Part No.CY62157EV30LL-45ZSXIT
kr 83,98
Each
Units
8192kbit 512K x 16 512K 16bit 45ns - - - - - - - - -
RS Stock No. 146-3207
Mfr. Part No.47C04-I/ST
BrandMicrochip
kr 4,58
Each (In a Tube of 100)
Units
4kbit 512K x 8 - 8bit - - 1000kHz Yes Synchronous Surface Mount TSSOP 8 3.1 x 4.5 x 1.05mm 1.05mm
Related Products
The MoBL low-power SRAM memory devices have high ...
Description:
The MoBL low-power SRAM memory devices have high efficiency and offer industry leading standby power dissipation (maximum) specifications. Very high speed: 45 ns. Voltage range: 4.5 V to 5.5 VPin compatible with CY62148BUltra low standby power. Typical standby current: 1 ...
The MoBL low-power SRAM memory devices have high ...
Description:
The MoBL low-power SRAM memory devices have high efficiency and offer industry leading standby power dissipation (maximum) specifications. Thin small outline package (TSOP) I package configurable as 512K ´ 16 or 1M ´ 8 static RAM (SRAM)High speed: 45 ns. ...
Pin- and function-compatible with CY7C109B/CY7C1009BHigh speedTAA = 10 ...
Description:
Pin- and function-compatible with CY7C109B/CY7C1009BHigh speedTAA = 10 ns. Low active powerICC = 80 mA at 10 ns. Low CMOS standby powerISB2 = 3 mA2.0 V Data Retention. Automatic power-down when deselectedTTL-compatible inputs and outputs. Easy memory expansion with CE1, ...
Pin- and function-compatible with CY7C107B/CY7C1007BHigh speedTAA = 10 ...
Description:
Pin- and function-compatible with CY7C107B/CY7C1007BHigh speedTAA = 10 ns. Low active powerICC = 80 mA @ 10 ns. Low complementary metal oxide semiconductor (CMOS) standby powerISB2 = 3 mA2.0 V data retention. Automatic power-down when deselectedCMOS for optimum speed/power. Transistor ...