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

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กำลังดูสินค้า 81 - 100 รายการจาก 463 รายการ / Viewing 81 - 100 of 463 products
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รายละเอียดสินค้า / Description ราคา / 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. 912-2859
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23LC1024-I/ST
Brand :Microchip
THB62.087
Each (In a Tube of 100)
Units
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 Stock No. 391-729
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.IS62C1024AL-35TLI
Brand :ISSI
THB94.085
Each: (In a Pack of 2)
Units
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 Stock No. 181-7610
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CY7C1021DV33-10ZSXIT
THB92.11
Each: (In a Pack of 3)
Units
1Mbit 64K x 16 bit 64K 16bit 10ns - - - Asynchronous Surface Mount TSOP 44 18.51 x 10.26 x 1.04mm 1.04mm
RS Stock No. 181-7449
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CY7C1049G-10VXI
THB170.615
Each (In a Tube of 19)
Units
4Mbit 512K x 8 bit 512K 8bit 10ns - - - Asynchronous Surface Mount SOJ 36 0.93 x 0.405 x 0.12in 3.05mm
RS Stock No. 171-0972
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CY62138EV30LL-45BVXI
THB109.423
Each (In a Tray of 480)
Units
2Mbit 256K x 8 bit 256K 8bit 45ns 8bit - Yes - Surface Mount VFBGA 36 6 x 8 x 0.81mm 0.81mm
RS Stock No. 171-0982
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CY62167EV30LL-45ZXA
THB419.44
Each (In a Tray of 96)
Units
16Mbit 1M x 16 bit 1M 16bit 45ns 16bit - Yes - Surface Mount TSOP 48 18.4 x 12 x 1.05mm 1.05mm
RS Stock No. 811-5214
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.IS62WV51216BLL-55BLI
Brand :ISSI
THB224.51
Each
Units
8Mbit 512k x 16 512k 16bit 55ns 19bit - Yes - Surface Mount BGA 48 8.8 x 7.3 x 0.9mm 0.9mm
RS Stock No. 170-0739
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS6C4008-55TIN
THB105.71
Each (In a Tray of 156)
Units
4Mbit 512K words x 8 bit 512K 8bit 55ns 19bit - Yes Asynchronous Surface Mount TSOP 32 8 x 18.4 x 1mm 1mm
RS Stock No. 124-2937
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CY62128EV30LL-45ZAXI
THB50.316
Each: (In a Pack of 5)
Units
1Mbit 128K x 8 bit 128K 8bit 45ns 8bit 1MHz Yes - Surface Mount STSOP 32 11.9 x 8.1 x 1.05mm 1.05mm
RS Stock No. 188-5322
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CY62146EV30LL-45ZSXI
THB140.944
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
ใหม่ / New
RS Stock No. 200-9833
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.48L512-I/SN
Brand :Microchip
THB91.307
Each: (In a Pack of 3)
Units
512kbit 65 k x 8 65, 536 8bit 10ns - - - - - - - - -
RS Stock No. 920-1050
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CY14B101LA-ZS25XI
THB768.174
Each (In a Tray of 135)
Units
1Mbit 128K x 8 128K 8bit 25ns 17bit 1MHz - - Surface Mount TSOP 44 18.517 x 10.262 x 1.044mm 1.044mm
RS Stock No. 170-0894
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS7C31024B-12TCN
THB70.17
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. 170-2075
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.IDT7132LA35PDG
Brand :IDT
THB421.536
Each (In a Tube of 7)
Units
16kbit 2K x 8 bit 2K 8bit 35ns 8bit - Yes Asynchronous Through Hole PDIP 48 61.7 x 15.24 x 3.8mm 3.8mm
RS Stock No. 125-7535
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CY7C1051DV33-10ZSXI
THB452.20
Each
Units
8Mbit 512K x 16 bit 512K 16bit 10ns 16bit - Yes - Surface Mount TSOP 44 18.517 x 10.262 x 1.044mm 1.044mm
RS Stock No. 182-3289
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CY7C1021DV33-10BVXI
THB83.854
Each (In a Tray of 480)
Units
1Mbit 64K x 16 bit 64K 16bit 10ns - 100MHz Yes Asynchronous Surface Mount BGA 48 8 x 6 x 0.79mm 0.79mm
RS Stock No. 146-3207
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.47C04-I/ST
Brand :Microchip
THB19.97
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
RS Stock No. 391-696
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.IS61LV5128AL-10TLI
Brand :ISSI
THB197.71
Each
Units
4Mbit 512K words x 8 bit 512K 8bit 10ns 19bit - Yes Asynchronous Surface Mount TSOP 44 18.52 x 10.29 x 1.05mm 1.05mm
RS Stock No. 125-6983
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CY62157EV30LL-45ZSXI
THB227.38
Each
Units
8Mbit 512K x 16 bit 512K 16bit 45ns 16bit - Yes - Surface Mount TSOP 44 18.517 x 10.262 x 1.044mm 1.044mm
RS Stock No. 810-3576
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.M48Z58-70PC1
THB490.55
Each
Units
64kbit 8K x 8 bit 8K 8bit 70ns 13bit 1MHz Yes - Through Hole PCDIP 28 39.88 x 18.34 x 8.89mm 8.89mm
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