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GS82582DT21 Arkusz danych(PDF) 1 Page - GSI Technology |
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GS82582DT21 Arkusz danych(HTML) 1 Page - GSI Technology |
1 / 27 page GS82582DT21/39GE-675S/633S/550S 288Mb SigmaQuad-II+ Burst of 4 SRAM Up to 675 MHz 1.8 V VDD 1.5 V I/O 165-Bump BGA Commercial Temp Industrial Temp Rev: 1.01 4/2016 1/27 © 2015, GSI Technology Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Features • For use with GSI FPGA-based Controller IP • 3.0 Clock Latency • 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 • Dual-Range On-Die Termination (ODT) on Data (D), Byte Write (BW), and Clock (K, K) inputs • 1.8 V +100/–100 mV core power supply • 1.5 V HSTL Interface • Pipelined read operation • Fully coherent read and write pipelines • ZQ pin for programmable output drive strength • Data Valid Pin (QVLD) Support • IEEE 1149.1 JTAG-compliant Boundary Scan • 165-bump, 15 mm x 17 mm, 1 mm bump pitch BGA package • 6/6 RoHS-compliant 165-bump BGA package SigmaQuad™ Family Overview The GS82582DT21/39GE are built in compliance with the SigmaQuad-II+ SRAM pinout standard for Separate I/O synchronous SRAMs. They are 301,989,888-bit (288Mb) SRAMs. The GS82582DT21/39GE SigmaQuad SRAMs are just one element in a family of low power, low voltage HSTL I/O SRAMs designed to operate at the speeds needed to implement economical high performance networking systems. Clocking and Addressing Schemes The GS82582DT21/39GE SigmaQuad-II+ SRAMs are synchronous devices. They employ 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. Each internal read and write operation in a SigmaQuad-II+ B4 RAM is four times wider than the device I/O bus. An input data bus de-multiplexer is used to accumulate incoming data before it is simultaneously written to the memory array. An output data multiplexer is used to capture the data produced from a single memory array read and then route it to the appropriate output drivers as needed. Therefore the address field of a SigmaQuad-II+ B4 RAM is always two address pins less than the advertised index depth (e.g., the 16M x 18 has a 4M addressable index). Parameter Synopsis -675S -633S -550S tKHKH 1.48 ns 1.58 ns 1.81 ns |
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