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 1 - 20 รายการจาก 82 รายการ / Viewing 1 - 20 of 82 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. 170-0895
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS6C4008-55PCN
THB251.538
Each (In a Tube of 13)
Units
4Mbit 512K x 8 bit 512K 8bit 55ns 19bit - Yes Asynchronous Through Hole PDIP 32 41.91 x 13.818 x 3.81mm 3.81mm
RS Stock No. 744-4561
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS6C4008-55PCN
THB208.39
Each
Units
4Mbit 512K x 8 bit 512K 8bit 55ns 19bit - Yes Asynchronous Through Hole PDIP 32 41.91 x 13.818 x 3.81mm 3.81mm
RS Stock No. 146-0606
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS7C38096A-10TIN
THB511.585
Each (In a Tray of 135)
Units
8Mbit 1M x 8 bit 1M 8bit 10ns 8bit 1MHz Yes Asynchronous Surface Mount TSOP 44 18.618 x 10.363 x 1.05mm 1.05mm
RS Stock No. 170-0749
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS7C256A-12TIN
THB79.846
Each (In a Tray of 234)
Units
256kbit 32K words x 8 bit 32K 8bit 12ns 15bit - Yes Asynchronous Surface Mount TSOP 28 8 x 11.8 x 1.05mm 1.05mm
RS Stock No. 744-4542
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS6C1008-55PCN
THB94.93
Each
Units
1Mbit 128K x 8 bit 128K 8bit 55ns 17bit - Yes Asynchronous Through Hole PDIP 32 41.91 x 13.818 x 3.81mm 3.81mm
RS Stock No. 170-0923
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS7C38098A-10TIN
THB717.83
Each (In a Tray of 135)
Units
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 Stock No. 797-5881
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS7C38098A-10TIN
THB543.87
Each
Units
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 Stock No. 170-0735
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS6C62256-55SIN
THB81.88
Each (In a Tube of 25)
Units
256kbit 32K words x 8 bit 32K 8bit 55ns 15bit - Yes Asynchronous Surface Mount SOP 28 18.49 x 8.64 x 2.49mm 2.49mm
RS Stock No. 177-5533
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS6C1008-55TIN
THB140.083
Each (In a Tray of 156)
Units
1Mbit 128K words x 8 bit 128K 8bit 55ns 17bit - Yes Asynchronous Surface Mount TSOP 32 8 x 18.4 x 1mm 1mm
RS Stock No. 170-0892
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS7C1026B-12TCN
THB125.585
Each (In a Tray of 135)
Units
1Mbit 64K x 16 bit 64K 16bit 12ns 16bit - Yes Asynchronous Surface Mount TSOP 44 18.52 x 10.26 x 1.05mm 1.05mm
RS Stock No. 538-287
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS7C256A-12JIN
THB75.60
Each: (In a Pack of 2)
Units
256kbit 32K words x 8 bit 32K 8bit 12ns 15bit - Yes Asynchronous Surface Mount SOJ 28 18.54 x 7.75 x 2.67mm 2.67mm
RS Stock No. 538-271
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS6C8016-55ZIN
THB228.21
Each
Units
8Mbit 512K words x 16 bit 512K 16bit 55ns 19bit - Yes Asynchronous Surface Mount TSOP 44 18.42 x 10.16 x 1mm 1mm
RS Stock No. 170-0750
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS7C34096A-12JIN
THB241.316
Each (In a Tube of 19)
Units
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 Stock No. 538-261
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS7C3256A-12TIN
THB50.83
Each: (In a Pack of 2)
Units
256kbit 32K words x 8 bit 32K 8bit 12ns 15bit - Yes Asynchronous Surface Mount TSOP 28 8 x 11.8 x 1.05mm 1.05mm
RS Stock No. 170-0742
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS7C34098A-12TIN
THB176.748
Each (In a Tray of 135)
Units
4Mbit 256K words x 16 bit 256K 16bit 12ns 18bit - Yes Asynchronous Surface Mount TSOP 44 18.54 x 10.29 x 1.05mm 1.05mm
RS Stock No. 170-0736
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS6C62256-55PCN
THB96.333
Each (In a Tube of 15)
Units
256kbit 32K words x 8 bit 32K 8bit 55ns 15bit - Yes Asynchronous Through Hole PDIP 28 36.32 x 13.21 x 3.81mm 3.81mm
RS Stock No. 170-0738
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS6C4008-55SIN
THB168.818
Each (In a Tube of 22)
Units
4Mbit 512K words x 8 bit 512K 8bit 55ns 19bit - Yes Asynchronous Surface Mount SOP 32 20.75 x 11.3 x 2.82mm 2.82mm
RS Stock No. 744-4567
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS6C4016-55ZIN
THB154.21
Each
Units
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 Stock No. 538-154
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS6C8008-55ZIN
THB253.28
Each
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. 170-0922
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AS7C316096A-10TIN
THB1,151.167
Each (In a Tray of 156)
Units
16Mbit 2048K x 8 bit 2048K 8bit 10ns 8bit 1MHz Yes Asynchronous Surface Mount TSOP 48 18.5 x 12.1 x 1.05mm 1.05mm