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GS8180D18GD-100 데이터시트(PDF) 1 Page - GSI Technology |
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GS8180D18GD-100 데이터시트(HTML) 1 Page - GSI Technology |
1 / 28 page Rev: 2.04 4/2005 1/28 © 2002, GSI Technology Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. GS8180D18D-250/200/167/133/100 18Mb Burst of 4 SigmaQuad SRAM 250 MHz–100 MHz 1.8 V VDD 1.8 V or 1.5 V I/O 165-Bump BGA Commercial Temp Industrial Temp Features • Simultaneous Read and Write SigmaQuad™ Interface • JEDEC-standard pinout and package • Dual Double Data Rate interface • Byte Write controls sampled at data-in time • Burst of 4 Read and Write • 1.8 V +150/–100 mV core power supply • 1.5 V or 1.8 V HSTL Interface • Pipelined read operation • Fully coherent read and write pipelines • ZQ mode pin for programmable output drive strength • IEEE 1149.1 JTAG-compliant Boundary Scan • 165-bump, 13 mm x 15 mm, 1 mm bump pitch BGA package • Pin-compatible with future 36Mb, 72Mb, and 144Mb devices • Pb-Free 165-bump BGA package available SigmaRAM™ Family Overview GS8180D18 are built in compliance with the SigmaQuad SRAM pinout standard for Separate I/O synchronous SRAMs. They are 18,874,368-bit (18Mb) SRAMs. These are the first in a family of wide, very low voltage HSTL I/O SRAMs designed to operate at the speeds needed to implement economical high performance networking systems. SigmaQuad SRAMs are offered in a number of configurations. Some emulate and enhance other synchronous separate I/O SRAMs. A higher performance SDR (Single Data Rate) Burst of 2 version is also offered. The logical differences between the protocols employed by these RAMs hinge mainly on various combinations of address bursting, output data registering, and write cueing. Along with the Common I/O family of SigmaRAMs, the SigmaQuad family of SRAMs allows a user to implement the interface protocol best suited to the task at hand. Clocking and Addressing Schemes A Burst of 4 SigmaQuad SRAM is a synchronous device. It employs two input register clock inputs, K and K. K and K are independent single-ended clock inputs, not differential inputs to a single differential clock input buffer. The device also allows the user to manipulate the output register clock inputs quasi independently with the C and C clock inputs. C and C are also independent single-ended clock inputs, not differential inputs. If the C clocks are tied high, the K clocks are routed internally to fire the output registers instead. Because Separate I/O Burst of 4 RAMs always transfer data in four packets, A0 and A1 are internally set to 0 for the first read Parameter Synopsis -250 -200 -167 -133 -100 tKHKH 4.0 ns 5.0 ns 6.0 ns 7.5 ns 10 ns tKHQV 2.1 ns 2.3 ns 2.5 ns 3.0 ns 3.0 ns |
유사한 부품 번호 - GS8180D18GD-100 |
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유사한 설명 - GS8180D18GD-100 |
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