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

...
Lees meer Lees minder

Filters

61 - 80 van 501 producten worden weergegeven
Resultaten per pagina
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. 811-5181
FabrikantnummerIS61WV25616BLL-10TLI
FabrikantISSI
€ 3,815
Each (In a Pack of 2)
Aantal stuks
4Mbit 256k x 16 256k 16bit 10ns 18bit - - Asynchronous Surface Mount TSOP 44 18.54 x 10.29 x 1.05mm 1.05mm
RS-stocknr. 170-2059
FabrikantnummerIS61LV6416-10TL
FabrikantISSI
€ 1,586
Each (In a Tray of 135)
Aantal stuks
1Mbit 64K words x 16 bit 64K 16bit 10ns 16bit - Yes Asynchronous Surface Mount TSOP 44 18.52 x 10.29 x 1.05mm 1.05mm
RS-stocknr. 170-0896
FabrikantnummerAS6C4016-55ZIN
FabrikantAlliance Memory
€ 3,116
Each (In a Tray of 135)
Aantal stuks
4Mbit 256K x 16 bit 256K 16bit 55ns 18bit - Yes Asynchronous Surface Mount TSOP 44 18.6 x 10.3 x 1.05mm 1.05mm
RS-stocknr. 170-0739
FabrikantnummerAS6C4008-55TIN
FabrikantAlliance Memory
€ 2,835
Each (In a Tray of 156)
Aantal stuks
4Mbit 512K words x 8 bit 512K 8bit 55ns 19bit - Yes Asynchronous Surface Mount TSOP 32 8 x 18.4 x 1mm 1mm
RS-stocknr. 767-5941
FabrikantnummerR1LV1616HSA-4SI#B0
€ 14,40
Each
Aantal stuks
16Mbit 2M words x 8 bit 2M 8bit 45ns - - Yes Asynchronous Surface Mount TSOP 48 18.5 x 12.1 x 1mm 1mm
RS-stocknr. 170-2057
FabrikantnummerIS62C1024AL-35TLI
FabrikantISSI
€ 1,87
Each (In a Tray of 156)
Aantal stuks
1Mbit 128K words x 8 bit 128K 8bit 35ns 17bit - Yes Asynchronous Surface Mount TSOP 32 8.1 x 18.5 x 0.95mm 0.95mm
RS-stocknr. 170-2183
FabrikantnummerIS61WV25616EDBLL-10TLI
FabrikantISSI
€ 2,661
Each (In a Tray of 135)
Aantal stuks
4Mbit 256k x 16 256k 16bit 10ns 18bit - Yes Asynchronous Surface Mount TSOP 44 18.54 x 10.29 x 1.05mm 1.05mm
RS-stocknr. 125-7533
FabrikantnummerCY7C1021DV33-10ZSXI
€ 1,344
Each (In a Pack of 5)
Aantal stuks
1Mbit 64K x 16 bit 64K 16bit 10ns 16bit - Yes Asynchronous Surface Mount TSOP 44 18.517 x 10.262 x 1.044mm 1.044mm
RS-stocknr. 170-0894
FabrikantnummerAS7C31024B-12TCN
FabrikantAlliance Memory
€ 2,056
Each (In a Tray of 156)
Aantal stuks
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-stocknr. 912-2859
Fabrikantnummer23LC1024-I/ST
FabrikantMicrochip
€ 1,803
Each (In a Tube of 100)
Aantal stuks
1Mbit 128K words x 8 bit 128K 8bit - 24bit 20MHz Yes Synchronous Surface Mount TSSOP 8 3.1 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 666-8148
Fabrikantnummer23K256-I/SN
FabrikantMicrochip
€ 0,998
Each (In a Pack of 5)
Aantal stuks
256kbit 32768 words x 8 bit 32K 8bit 25ns 16bit 20MHz Yes Synchronous Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 1.25mm
RS-stocknr. 170-2176
FabrikantnummerIS61C25616AL-10TLI
FabrikantISSI
€ 3,788
Each (In a Tray of 135)
Aantal stuks
4Mbit 256k x 16 256k 16bit 10ns 18bit - - - Surface Mount TSOP 44 18.52 x 10.29 x 1.05mm 1.05mm
RS-stocknr. 124-2945
FabrikantnummerCY62158ELL-45ZSXI
€ 10,31
Each
Aantal stuks
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-stocknr. 744-4570
FabrikantnummerAS7C34096A-10TIN
FabrikantAlliance Memory
€ 4,92
Each
Aantal stuks
4Mbit 512K x 8 bit 512K 8bit 10ns 19bit - Yes Asynchronous Surface Mount TSOP 44 18.52 x 10.26 x 1.05mm 1.05mm
RS-stocknr. 744-4558
FabrikantnummerAS7C31024B-12TCN
FabrikantAlliance Memory
€ 2,61
Each
Aantal stuks
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-stocknr. 538-211
FabrikantnummerAS7C4096A-12JIN
FabrikantAlliance Memory
€ 4,52
Each
Aantal stuks
4Mbit 512K words x 8 bit 512K 8bit 12ns 19bit - Yes Asynchronous Surface Mount SOJ 36 23.62 x 10.16 x 2.95mm 2.95mm
RS-stocknr. 769-7349
Fabrikantnummer23LC1024-I/ST
FabrikantMicrochip
€ 1,955
Each (In a Pack of 2)
Aantal stuks
1Mbit 128K words x 8 bit 128Kk 8bit - 24bit 20MHz Yes Synchronous Surface Mount TSSOP 8 3.1 x 4.5 x 1.05mm 1.05mm
RS-stocknr. 170-2182
FabrikantnummerIS61WV25616BLL-10TLI
FabrikantISSI
€ 3,176
Each (In a Tray of 135)
Aantal stuks
4Mbit 256k x 16 256k 16bit 10ns 18bit - - Asynchronous Surface Mount TSOP 44 18.54 x 10.29 x 1.05mm 1.05mm
RS-stocknr. 145-3623
FabrikantnummerN25S830HAS22I
FabrikantON Semiconductor
€ 1,357
Each (In a Tube of 100)
Aantal stuks
256kbit 32k x 8 bit 32K 8bit 25ns 16bit 20MHz Yes Synchronous Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm
RS-stocknr. 188-5324
FabrikantnummerCY62148ELL-55SXI
€ 3,893
Each (In a Tube of 25)
Aantal stuks
4Mbit 512k x 8 bit 512k 8bit 55ns - 1MHz Yes - Surface Mount SOIC 32 20.75 x 11.43 x 2.88mm 2.88mm
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 nsTemperature ranges:Industrial: –40 °C to +85 °CWide voltage range: 2.2 V to 3.6 VPin compatible with CY62128DV30Ultra low ...
Pin- and function-compatible with CY7C109B/CY7C1009BHigh speedTAA = 10 ...
Description:
Pin- and function-compatible with CY7C109B/CY7C1009BHigh speedTAA = 10 nsLow active powerICC = 80 mA at 10 nsLow CMOS standby powerISB2 = 3 mA2.0 V Data RetentionAutomatic power-down when deselectedTTL-compatible inputs and outputsEasy memory expansion with CE1, CE2 and OE optionsCY7C109D ...
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 nsVoltage range: 4.5 V to 5.5 VPin compatible with CY62148BUltra low standby powerTypical standby current: 1 μAMaximum standby ...
Pin- and function-compatible with CY7C109B/CY7C1009BHigh speedTAA = 10 ...
Description:
Pin- and function-compatible with CY7C109B/CY7C1009BHigh speedTAA = 10 nsLow active powerICC = 80 mA at 10 nsLow CMOS standby powerISB2 = 3 mA2.0 V Data RetentionAutomatic power-down when deselectedTTL-compatible inputs and outputsEasy memory expansion with CE1, CE2 and OE optionsCY7C109D ...