SDRAM

What is RAM?
RAM or, Random Access Memory, is in almost all computing-capable devices. Found in handheld devices like smartphones, tablets and games consoles as well as laptops, desktop computers, televisions and so much more. RAM enables these devices to process tasks, manage information and solve problems.

What are RAM Memory Chips?
Computer memory modules are typically in either DIMM or SO-DIMM formats made up of a PCB board with a range of small memory chips on board. An SDRAM memory chip is what enables the RAM module to process tasks required by the device it is installed in. The memory size of each chip on the module each contributes to the overall RAM size that is accessible by the device. Larger memory sizes typically allow for more tasks, greater problem-solving power or the ability to run more or larger pieces of software at any one time.

What is SDRAM?
SDRAM, unlike regular DRAM, operates while syncing with the CPU clock. This syncing means the RAM waits for the clock signal before it will respond to data input. Unlike regular DRAM that will respond immediately to input data, SDRAM has a pipelining function allowing the CPU to process multiple tasks in parallel.

Aside from memory size, access time and data rates are key to having the most efficient and high performing device possible. These two factors are what allow CPUs to access the system RAM and engage processes and solve problems. Shorter access times provide faster access, building more efficient working environments.

Data rates, measured in Megahertz (MHz), varies across types and sizes of RAM and combined with bus widths and access time, data rates play a large part of processing. The data rate is quite simply the speed at which data can be fed into and out of systems. This means time taken to feed a process into the RAM and then transfer the results of the process undertaken back to the computer or device using it. Higher MHz values on RAM provide faster transfer times allowing systems to both feed and receive information faster.

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Description Price Memory Size Organisation SDRAM Class Data Rate Data Bus Width Address Bus Width Number of Bits per Word Maximum Random Access Time Number of Words Package Type Pin Count Dimensions Height Length
RS Stock No. 811-5125
Mfr. Part No.IS42S16400J-7TLI
BrandISSI
£1.735
Each (In a Pack of 2)
Units
64Mbit 4M x 16 bit - 143MHz 16bit 14bit 16bit 5.4ns 4M TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 170-2171
Mfr. Part No.IS42S16400J-7TLI
BrandISSI
£1.517
Each (In a Tray of 108)
Units
64Mbit 4M x 16 bit - 143MHz 16bit 14bit 16bit 5.4ns 4M TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 782-4563
Mfr. Part No.MT46V32M16P-5B :J
BrandMicron
£4.11
Each
Units
512MB 32M x 16 bit DDR 200MHz 16bit 15bit 16bit 5ns 32M TSOP 66 22.22 x 10.16 x 1.2mm 1.2mm 22.22mm
RS Stock No. 782-4547
Mfr. Part No.MT48LC8M16A2P-6A :L
BrandMicron
£4.43
Each
Units
128MB 8M x 16 bit - - 16bit 14bit 16bit 6ns 8M TSOP 54 22.22 x 10.16 x 1.2mm 1.2mm 22.22mm
RS Stock No. 782-4553
Mfr. Part No.MT48LC16M16A2P-6A:G
BrandMicron
£5.08
Each
Units
256MB 16M x 16 bit - - 16bit 15bit 16bit 6ns 16M TSOP 54 22.22 x 10.16 x 1.2mm 1.2mm 22.22mm
RS Stock No. 782-4535
Mfr. Part No.MT48LC4M32B2P-6A :L
BrandMicron
£6.60
Each
Units
128MB 4M x 32 bit - - 32bit 14bit 32bit 6ns 4M TSOP 86 22.22 x 10.16 x 1.2mm 1.2mm 22.22mm
RS Stock No. 782-4566
Mfr. Part No.MT46V16M16P-5B :M
BrandMicron
£3.65
Each
Units
256MB 16M x 16 bit DDR 200MHz 16bit 15bit 16bit 5ns 16M TSOP 66 22.22 x 10.16 x 1.2mm 1.2mm 22.22mm
RS Stock No. 811-5131
Mfr. Part No.IS42S16800F-7TL
BrandISSI
£2.315
Each (In a Pack of 2)
Units
128Mbit 8M x 16 - 143MHz 16bit 14bit 16bit 5.4ns 8M TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 170-2172
Mfr. Part No.IS42S16800F-7TL
BrandISSI
£1.65
Each (In a Tray of 108)
Units
128Mbit 8M x 16 - 143MHz 16bit 14bit 16bit 5.4ns 8M TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 797-5790
Mfr. Part No.AS4C1M16S-7TCN
£1.43
Each (In a Pack of 3)
Units
16Mbit 1M x 16 bit - 143MHz 16bit - 16bit 5.4ns 512K TSOP 50 21.08 x 10.29 x 1.1mm 1.1mm 21.08mm
RS Stock No. 170-0918
Mfr. Part No.AS4C1M16S-7TCN
£1.117
Each (In a Tray of 117)
Units
16Mbit 1M x 16 bit - 143MHz 16bit - 16bit 5.4ns 512K TSOP 50 21.08 x 10.29 x 1.1mm 1.1mm 21.08mm
RS Stock No. 811-5113
Mfr. Part No.IS42S16160G-7TLI
BrandISSI
£3.65
Each
Units
256Mbit 16M x 16 bit - 143MHz 16bit 15bit 16bit 5.4ns 16M TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 170-2169
Mfr. Part No.IS42S16160G-7TLI
BrandISSI
£3.191
Each (In a Tray of 108)
Units
256Mbit 16M x 16 bit - 143MHz 16bit 15bit 16bit 5.4ns 16M TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 170-2174
Mfr. Part No.IS42S32400F-7TL
BrandISSI
£2.29
Each (In a Tray of 108)
Units
128Mbit 4M x 32 - 143MHz 32bit 14bit 32bit 6.5ns 4M TSOP 86 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 811-5141
Mfr. Part No.IS42S32400F-7TL
BrandISSI
£2.56
Each
Units
128Mbit 4M x 32 - 143MHz 32bit 14bit 32bit 6.5ns 4M TSOP 86 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 797-5819
Mfr. Part No.AS4C32M16SA-7TCN
£11.53
Each
Units
512Mbit 32M x 16 bit - 133MHz 16bit - 16bit 6ns 8M TSOP 54 22.2 x 10.16 x 1mm 1mm 22.2mm
RS Stock No. 177-5530
Mfr. Part No.AS4C32M16SA-7TCN
£10.485
Each (In a Tray of 108)
Units
512Mbit 32M x 16 bit - 133MHz 16bit - 16bit 6ns 8M TSOP 54 22.2 x 10.16 x 1mm 1mm 22.2mm
RS Stock No. 811-5119
Mfr. Part No.IS42S16160G-7TL
BrandISSI
£2.63
Each
Units
256Mbit 16M x 16 - 143MHz 16bit 15bit 16bit 5.4ns 16M TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 170-2170
Mfr. Part No.IS42S16160G-7TL
BrandISSI
£2.648
Each (In a Tray of 108)
Units
256Mbit 16M x 16 - 143MHz 16bit 15bit 16bit 5.4ns 16M TSOP 54 22.42 x 10.29 x 1.05mm 1.05mm 22.42mm
RS Stock No. 173-0302
Mfr. Part No.AS4C4M32S-7BCN
£1.849
Each (In a Tray of 190)
Units
128Mbit 4M x 32 bit - 133MHz 32bit - 32bit 5.4ns 1M TFBGA 90 8.1 x 13.1 x 0.79mm 0.79mm 8.1mm
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