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

  • 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

Applications

  • Computers
  • Workstations
  • Routers
  • LCD screens and printers
  • Electronics
  • Microprocessors

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กำลังดูสินค้า 1 - 20 รายการจาก 63 รายการ / Viewing 1 - 20 of 63 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. 798-5208
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23LC512-I/SN
Brand :Microchip
THB51.45
Each: (In a Pack of 5)
Units
512kbit 64K x 8 bit 64k 8bit 5ns 8bit 20MHz Yes Synchronous Surface Mount SOIC 8 4.9 x 3.9 x 1.5mm 1.5mm
RS Stock No. 178-4043
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23LC512-I/SN
Brand :Microchip
THB51.098
Each (In a Tube of 100)
Units
512kbit 64k x 8 bit 64k 8bit 5ns 8bit 20MHz Yes Synchronous Surface Mount SOIC 8 4.9 x 3.9 x 1.5mm 1.5mm
RS Stock No. 803-2197
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23LCV512-I/SN
Brand :Microchip
THB58.196
Each: (In a Pack of 5)
Units
512kbit 64k x 8 bit 64k 8bit 5ns 16bit 20MHz Yes - Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 178-4054
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23LCV512-I/SN
Brand :Microchip
THB57.84
Each (In a Tube of 100)
Units
512kbit 64k x 8 bit 64k 8bit 5ns 16bit 20MHz Yes - Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 769-7345
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23LC1024-I/P
Brand :Microchip
THB81.75
Each: (In a Pack of 2)
Units
1Mbit 128K words x 8 bit 128k 8bit 5ns 24bit 20MHz Yes Synchronous Through Hole PDIP 8 0.4 x 0.28 x 0.195in 4.95mm
RS Stock No. 178-4005
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23K640-I/SN
Brand :Microchip
THB20.936
Each (In a Tube of 100)
Units
64kbit 8192 x 8 bit 8k 8bit 25ns 16bit 20MHz Yes Synchronous Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 912-2714
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23LC1024-I/P
Brand :Microchip
THB73.407
Each (In a Tube of 60)
Units
1Mbit 128k x 8 bit 128k 8bit 5ns 24bit 20MHz Yes Synchronous Through Hole PDIP 8 10.16 x 7.11 x 4.95mm 4.95mm
RS Stock No. 666-8150
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23K640-I/SN
Brand :Microchip
THB21.968
Each: (In a Pack of 5)
Units
64kbit 8192 words x 8 bit 8k 8bit 25ns 16bit 20MHz Yes Synchronous Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 889-5648
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23K256-I/SN
Brand :Microchip
THB39.475
Each (In a Tube of 100)
Units
256kbit 32768 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 Stock No. 803-2181
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23LCV1024-I/SN
Brand :Microchip
THB81.966
Each: (In a Pack of 5)
Units
1Mbit 128k x 8 bit 128k 8bit 5ns 24bit 20MHz Yes - Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 146-8925
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.47C16-I/ST
Brand :Microchip
THB25.905
Each: (In a Pack of 10)
Units
16kbit 2048k x 8 bit 2048k 8bit - - 1000kHz Yes Synchronous Surface Mount TSSOP 8 3.1 x 4.5 x 1.05mm 1.05mm
RS Stock No. 200-9832
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.48L512-I/SN
Brand :Microchip
THB92.261
Each (In a Tube of 100)
Units
512kbit 64k x 8 bit - 8bit 10ns - - - - - - - - -
RS Stock No. 146-8939
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.47L04-I/SN
Brand :Microchip
THB19.349
Each: (In a Pack of 10)
Units
4kbit 512k x 8 bit 512k 8bit - - 1000kHz Yes Synchronous Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 823-4440
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23K256-E/ST
Brand :Microchip
THB40.658
Each: (In a Pack of 5)
Units
256kbit 32768 x 8 bit 32768 8bit 50ns 16bit 20MHz - Synchronous Surface Mount TSSOP 8 4.5 x 3.1 x 1.05mm 1.05mm
RS Stock No. 666-8144
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.23K256-I/P
Brand :Microchip
THB43.196
Each: (In a Pack of 5)
Units
256kbit 32768 words x 8 bit 32k 8bit 25ns 16bit 20MHz Yes Synchronous Through Hole PDIP 8 9.27 x 6.35 x 3.3mm 3.3mm
RS Stock No. 146-3210
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.47C16-I/ST
Brand :Microchip
THB25.904
Each (In a Tube of 100)
Units
16kbit 2048k x 8 bit 2048k 8bit - - 1000kHz Yes Synchronous Surface Mount TSSOP 8 3.1 x 4.5 x 1.05mm 1.05mm
RS Stock No. 146-3209
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.47C16-I/SN
Brand :Microchip
THB23.775
Each (In a Tube of 100)
Units
16kbit 2048k x 8 bit 2048k 8bit - - 1000kHz Yes Synchronous Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 200-9831
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.48LM01-I/SM
Brand :Microchip
THB126.093
Each: (In a Pack of 3)
Units
1Mbit 128k x 8 bit 128k 8bit 10ns - - - - - - - - -
RS Stock No. 146-8892
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.47L16-I/ST
Brand :Microchip
THB25.905
Each: (In a Pack of 10)
Units
16kbit 2048k x 8 bit 2048k 8bit - - 1000kHz Yes Synchronous Surface Mount TSSOP 8 3.1 x 4.5 x 1.05mm 1.05mm
RS Stock No. 146-3205
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.47C04-I/P
Brand :Microchip
THB27.135
Each (In a Tube of 60)
Units
4kbit 512k x 8 bit 512k 8bit - - 1000kHz Yes Synchronous Through Hole DIP 8 10.2 x 7.1 x 4.83mm 4.83mm