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. Its 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 computers 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 ReliabilityDisadvantages include: Capacity Varying power consumptionCan be found in the following: Computers Workstations Routers LCD screens and printers Electronics Microprocessor

...
顯示內容 隱藏內容

篩選條件

正在檢視 81 - 100,共 466 項產品
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庫存編號 126-6983
製造零件編號RMLV0816BGSB-4S2#AA0
HK$253.22
單位
8Mbit 512K words x 16 bit 512K 16bit 45ns 19bit - Yes - Surface Mount TSOP 44 18.54 x 10.29 x 1.05mm 1.05mm
RS庫存編號 391-725
製造零件編號IS61C1024AL-12KLI
BrandISSI
HK$16.555
/個 (每包:2個)
單位
1Mbit 128K words x 8 bit 128K 8bit 12ns 17bit - Yes Asynchronous Surface Mount SOJ 32 21.08 x 10.29 x 3.75mm 3.75mm
RS庫存編號 797-5888
製造零件編號AS7C38098A-10BIN
HK$119.84
單位
8Mbit 512K x 16 bit 512K 16bit 10ns 16bit 1MHz Yes Asynchronous Surface Mount TFBGA 48 6.05 x 8.05 x 1.05mm 1.05mm
RS庫存編號 170-2078
製造零件編號IDT71321LA25JGI
BrandIDT
HK$121.42
毎管:24 個
單位
16kbit 2K x 8 bit 2K 8bit 25ns 8bit - Yes Asynchronous Surface Mount PLCC 52 19 x 19 x 3.63mm 3.63mm
RS庫存編號 146-8939
製造零件編號47L04-I/SN
BrandMicrochip
HK$5.21
/個 (每包:10個)
單位
4kbit 512K x 8 - 8bit - - 1000kHz Yes Synchronous Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 1.25mm
全新
RS庫存編號 193-8452
製造零件編號CY62126EV30LL-45ZSXIT
HK$15.141
個 (在毎卷:1000)
單位
1Mbit 64 k x 16 bit 64 k 16bit 45ns 16bit 1MHz Yes Asynchronous Surface Mount TSOP II 44 18.517 x 10.262 x 1.044mm 1.04mm
RS庫存編號 811-5181
製造零件編號IS61WV25616BLL-10TLI
BrandISSI
HK$44.87
/個 (每包:2個)
單位
4Mbit 256k x 16 256k 16bit 10ns 18bit - - Asynchronous Surface Mount TSOP 44 18.54 x 10.29 x 1.05mm 1.05mm
RS庫存編號 171-0974
製造零件編號CY62148ESL-55ZAXI
HK$47.41
Each (In a Tray of 234)
單位
4Mbit 512K x 8 bit 512K 8bit 55ns 8bit - Yes - Surface Mount STSOP 32 11.9 x 8.1 x 1.05mm 1.05mm
RS庫存編號 811-5214
製造零件編號IS62WV51216BLL-55BLI
BrandISSI
HK$60.41
單位
8Mbit 512k x 16 512k 16bit 55ns 19bit - Yes - Surface Mount BGA 48 8.8 x 7.3 x 0.9mm 0.9mm
RS庫存編號 125-7542
製造零件編號CY7C199D-10VXI
HK$17.97
/個 (每包:5個)
單位
256kbit 32K x 8 bit 32K 8bit 15ns 8bit - Yes - Surface Mount SOJ 28 18.03 x 7.62 x 0.254mm 0.254mm
RS庫存編號 923-7747
製造零件編號DS1225AB-85+
HK$133.28
毎管:12 個
單位
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庫存編號 124-2945
製造零件編號CY62158ELL-45ZSXI
HK$99.26
單位
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庫存編號 177-5513
製造零件編號AS6C6264-55PCN
HK$19.502
毎管:15 個
單位
64kbit 8K words x 8 bit 8K 8bit 55ns 13bit - Yes Asynchronous Through Hole PDIP 28 36.32 x 13.21 x 3.81mm 3.81mm
RS庫存編號 912-2859
製造零件編號23LC1024-I/ST
BrandMicrochip
HK$17.023
毎管:100 個
單位
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庫存編號 124-2950
製造零件編號CY7C109D-10VXI
HK$26.01
/個 (每包:2個)
單位
1Mbit 128K x 8 bit 128K 8bit 10ns 8bit 100MHz Yes Asynchronous Surface Mount SOJ 32 0.83 x 0.405 x 0.12in 3.05mm
RS庫存編號 171-0972
製造零件編號CY62138EV30LL-45BVXI
HK$30.253
Each (In a Tray of 480)
單位
2Mbit 256K x 8 bit 256K 8bit 45ns 8bit - Yes - Surface Mount VFBGA 36 6 x 8 x 0.81mm 0.81mm
RS庫存編號 126-7312
製造零件編號RMLV1616AGSD-5S2#AC0
HK$394.30
單位
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
RS庫存編號 170-0923
製造零件編號AS7C38098A-10TIN
HK$146.504
Each (In a Tray of 135)
單位
8Mbit 512K x 16 bit 512K 16bit 10ns 16bit 1MHz Yes Asynchronous Surface Mount TSOP 44 18.618 x 10.363 x 1.05mm 1.05mm
RS庫存編號 714-4801
製造零件編號IDT70V28L20PFGI
BrandIDT
HK$660.99
單位
1024kbit 64K x 16 bit 64K 16bit 20ns 16bit - Yes Asynchronous Surface Mount TQFP 100 14 x 14 x 1.4mm 1.4mm
RS庫存編號 126-7313
製造零件編號RMWV3216AGBG-5S2#AC0
HK$599.90
單位
32Mbit 2M words x 16 bit 2M 16bit 55ns 21bit - Yes - Surface Mount FBGA 48 7.58 x 8.58 x 0.8mm 0.8mm