FCRAM-ONE-XM-N1

FCRAM-ONE-XM-N1 Datasheet

FCRAM I Controller

Part	Datasheet
FCRAM-ONE-XM-N1	FCRAM-ONE-XM-N1 (pdf)

Related Parts	Information
FCRAM-ONE-E2-N1	FCRAM-ONE-E2-N1

PDF Datasheet Preview
FCRAM I Controller Home > Products > Intellectual Property > Lattice IP Cores > FCRAM I Controller FCRAM I Controller Overview Fast Cycle RAM FCRAM is a DRAM technology with a specialized memory core technology that achieves faster random access times and offers lower power consumption than traditional DRAMs. FCRAM is a trademark of Fujitsu Ltd., Japan. As faster applications emerge in the networking and communications markets, there is a need for higher performance memories to meet the architectural requirements of these emerging applications. FCRAM memory technology addresses the needs of some of these emerging applications. For applications that require DRAM densities with random cycle performance approaching SRAM speeds, FCRAM provides a cost effective solution. Lattice's FCRAM I controller core provides a simple and flexible solution to interfacing different FCRAM I memories to user application logic. On the memory side, the FCRAM I controller core interfaces to FCRAM I data bus widths with configurable 8 or 16 bit DDR memory interfaces. On the user side the core provides a simple command interface that accepts read, write, and refresh commands. The core interfaces to 256 Mbit FCRAM I devices speed grades -60/CAS latency 3 and 4 and -55/CAS latency 10/11/2011 FCRAM I Controller Supports 8- and 16-Bit FCRAM I DDR Data Interfaces Supports Parameterizeable Burst Lengths of 2 and 4 Supports Parameterizeable CAS Latencies of 3 or 4 Supports Controller Initiated Auto-refresh or User-initiated Auto/Self-refresh Built-in Initialization Sequence Automatically Programs the FCRAM I with User Settings Supports Bi-directional DDR Interface Between the Controller and FCRAM I DQ and DQS Supports a Target FCRAM I DDR Interface Frequency of 156 to 167MHz in a LatticeEC&trade or LatticeECP&trade Device Evaluation Configurations Performance and Utilization for LatticeECP/EC1 Parameter File SLICEs LUTs Registers I/Os sysMEM EBRs fMAX MHz fcram_one_e2_1_001.lpc 469 588 494 129 1 Performance and utilization characteristics are generated using LFEC20E-5F672C in Lattice's ispLEVERv4.2 software. Performance and Utilization for LatticeXP1 Parameter File SLICEs LUTs Registers I/Os sysMEM EBRs fMAX MHz fcram_one_xm_1_001.lpc 407 512 512 129 1 Performance and utilization characteristics are generated using LFXP10 C -5F388C in Lattice's ispLEVER v5.0 software. When using this IP core in a different density, speed, or grade within the LatticeXP family, performance may vary. Ordering Information Part Numbers For LatticeECP/EC:FCRAM-ONE-E2-N1 For LatticeXP FCRAM-ONE-XM-N1 To find out how to purchase the FCRAM I Controller IP Core, please contact your local Lattice Sales Office. 10/11/2011

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FCRAM I Controller

Home > Products > Intellectual Property > Lattice IP Cores > FCRAM I Controller

FCRAM I Controller

Overview

Fast Cycle RAM FCRAM is a DRAM technology with a specialized memory core technology that achieves faster random access times and offers lower power consumption than traditional DRAMs. FCRAM is a trademark of Fujitsu Ltd., Japan. As faster applications emerge in the networking and communications markets, there is a need for higher performance memories to meet the architectural requirements of these emerging applications. FCRAM memory technology addresses the needs of some of these emerging applications. For applications that require DRAM densities with random cycle performance approaching SRAM speeds, FCRAM provides a cost effective solution.

Lattice's FCRAM I controller core provides a simple and flexible solution to interfacing different FCRAM I memories to user application logic. On the memory side, the FCRAM I controller core interfaces to FCRAM I data bus widths with configurable 8 or 16 bit DDR memory interfaces. On the user side the core provides a simple command interface that accepts read, write, and refresh commands. The core interfaces to 256 Mbit FCRAM I devices speed grades -60/CAS latency 3 and 4 and -55/CAS latency
10/11/2011

FCRAM I Controller

Supports 8- and 16-Bit FCRAM I DDR Data Interfaces Supports Parameterizeable Burst Lengths of 2 and 4 Supports Parameterizeable CAS Latencies of 3 or 4 Supports Controller Initiated Auto-refresh or User-initiated Auto/Self-refresh Built-in Initialization Sequence Automatically Programs the FCRAM I with User Settings Supports Bi-directional DDR Interface Between the Controller and FCRAM I DQ and DQS Supports a Target FCRAM I DDR Interface Frequency of 156 to 167MHz in a LatticeEC&trade or LatticeECP&trade Device

Evaluation Configurations

Performance and Utilization for LatticeECP/EC1

Parameter File

SLICEs LUTs Registers I/Os sysMEM EBRs fMAX MHz
fcram_one_e2_1_001.lpc
469 588
494 129
1 Performance and utilization characteristics are generated using LFEC20E-5F672C in Lattice's ispLEVERv4.2 software.

Performance and Utilization for LatticeXP1

Parameter File

SLICEs LUTs Registers I/Os sysMEM EBRs fMAX MHz
fcram_one_xm_1_001.lpc
407 512
512 129
1 Performance and utilization characteristics are generated using LFXP10 C -5F388C in Lattice's ispLEVER v5.0 software. When using this IP core in a different density, speed, or grade within the LatticeXP family, performance may vary.
Ordering Information

Part Numbers For LatticeECP/EC:FCRAM-ONE-E2-N1 For LatticeXP FCRAM-ONE-XM-N1

To find out how to purchase the FCRAM I Controller IP Core, please contact your local Lattice Sales Office.
10/11/2011

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived FCRAM-ONE-XM-N1 Datasheet file may be downloaded here without warranties.

Datasheet ID: FCRAM-ONE-XM-N1 645465