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

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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 742-6715
製造零件編號IDT71V416L10PHGI
BrandIDT
HK$69.10
單位
4Mbit 256K x 16 bit 256K 16bit 10ns 18bit - Yes Asynchronous Surface Mount TSOP 44 18.41 x 10.16 x 1mm 1mm
RS庫存編號 170-2150
製造零件編號IDT71V416S10PHGI
BrandIDT
HK$53.253
毎管:26 個
單位
4Mbit 256K x 16 bit 256K 16bit 10ns 18bit - Yes Asynchronous Surface Mount TSOP 44 18.41 x 10.16 x 1mm 1mm
RS庫存編號 742-6724
製造零件編號IDT71V416S10PHGI
BrandIDT
HK$59.29
單位
4Mbit 256K x 16 bit 256K 16bit 10ns 18bit - Yes Asynchronous Surface Mount TSOP 44 18.41 x 10.16 x 1mm 1mm
RS庫存編號 714-4788
製造零件編號IDT7133LA25JGI
BrandIDT
HK$199.42
單位
32kbit 2K x 16 bit 2K 16bit 25ns 16bit - Yes Asynchronous Surface Mount PLCC 68 24 x 24 x 3.63mm 3.63mm
RS庫存編號 170-2070
製造零件編號IDT7133LA25JGI
BrandIDT
HK$185.661
毎管:18 個
單位
32kbit 2K x 16 bit 2K 16bit 25ns 16bit - Yes Asynchronous Surface Mount PLCC 68 24 x 24 x 3.63mm 3.63mm
RS庫存編號 714-4835
製造零件編號IDT70V25L20PFGI
BrandIDT
HK$296.67
單位
128kbit 8K x 16 bit 8K 16bit 20ns 26bit - Yes Asynchronous Surface Mount TQFP 100 14 x 14 x 1.4mm 1.4mm
RS庫存編號 170-2078
製造零件編號IDT71321LA25JGI
BrandIDT
HK$124.862
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 714-4839
製造零件編號IDT70V25L25PFGI
BrandIDT
HK$305.16
單位
128kbit 8K x 16 bit 8K 16bit 25ns 26bit - Yes Asynchronous Surface Mount TQFP 100 14 x 14 x 1.4mm 1.4mm
RS庫存編號 714-4778
製造零件編號IDT7130LA25JGI
BrandIDT
HK$100.89
單位
8kbit 1K x 8 bit 1K 8bit 25ns 8bit - Yes Asynchronous Surface Mount PLCC 52 19 x 19 x 3.63mm 3.63mm
RS庫存編號 714-4826
製造零件編號IDT7132LA35PDG
BrandIDT
HK$109.60
單位
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庫存編號 170-2067
製造零件編號IDT70V24L20PFGI
BrandIDT
HK$213.081
Each (In a Tray of 45)
單位
64kbit 4K x 16 bit 4K 16bit 20ns 26bit - Yes Asynchronous Surface Mount TQFP 100 14 x 14 x 1.4mm 1.4mm
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 714-4841
製造零件編號IDT71321LA25JGI
BrandIDT
HK$134.76
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 714-4738
製造零件編號IDT70V24L20PFGI
BrandIDT
HK$234.72
單位
64kbit 4K x 16 bit 4K 16bit 20ns 26bit - Yes Asynchronous Surface Mount TQFP 100 14 x 14 x 1.4mm 1.4mm
RS庫存編號 742-4692
製造零件編號IDT6116LA25SOGI
BrandIDT
HK$43.19
單位
16kbit 2K x 8 bit 2K 8bit 25ns 11bit - Yes Asynchronous Surface Mount SOIC 24 15.4 x 7.6 x 2.34mm 2.34mm
RS庫存編號 170-2075
製造零件編號IDT7132LA35PDG
BrandIDT
HK$109.603
毎管:7 個
單位
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庫存編號 170-2073
製造零件編號IDT70V28L20PFGI
BrandIDT
HK$615.773
Each (In a Tray of 6)
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 170-2077
製造零件編號IDT70V25L25PFGI
BrandIDT
HK$285.687
Each (In a Tray of 45)
單位
128kbit 8K x 16 bit 8K 16bit 25ns 26bit - Yes Asynchronous Surface Mount TQFP 100 14 x 14 x 1.4mm 1.4mm
RS庫存編號 170-2069
製造零件編號IDT7130LA25JGI
BrandIDT
HK$97.363
毎管:24 個
單位
8kbit 1K x 8 bit 1K 8bit 25ns 8bit - Yes Asynchronous Surface Mount PLCC 52 19 x 19 x 3.63mm 3.63mm
RS庫存編號 170-2076
製造零件編號IDT70V25L20PFGI
BrandIDT
HK$276.987
Each (In a Tray of 45)
單位
128kbit 8K x 16 bit 8K 16bit 20ns 26bit - Yes Asynchronous Surface Mount TQFP 100 14 x 14 x 1.4mm 1.4mm