GS81302QT19/37AGD-450/400/375/333,144Mb SigmaQuad-II+™ Burst of 2 SRAM product specification
●The GS81302QT19/37AGD are built in compliance with the SigmaQuad-II+ SRAM pinout standard for Separate I/O synchronous SRAMs. They are 150,994,944-bit (144Mb) SRAMs. The GS81302QT19/37AGD 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.
■Features
●2.0 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
●Dual-Range On-Die Termination (ODT) on Data (D), Byte Write (BW), and Clock (K, K) inputs
●Burst of 2 Read and Write
●1.8 V +100/–100 mV core power supply
●1.5 V or 1.8 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
●RoHS-compliant 165-bump BGA package
■Clocking and Addressing Schemes
●The GS81302QT19/37AGD 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+ B2 RAM is two 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+ B2 RAM is always one address pin less than the advertised index depth (e.g., the 8M x 18 has a 4M addressable index).
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GS81302QT19AGD-450 、 GS81302QT19AGD-400 、 GS81302QT19AGD-375 、 GS81302QT19AGD-333 、 GS81302QT37AGD-450 、 GS81302QT37AGD-400 、 GS81302QT37AGD-375 、 GS81302QT37AGD-333 |
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Datasheet |
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Please see the document for details |
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BGA |
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English Chinese Chinese and English Japanese |
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2/2018 |
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Rev: 1.01 |
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678 KB |
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