参数资料
型号: IPR-SDRAM/DDR
厂商: Altera
文件页数: 8/106页
文件大小: 0K
描述: IP DDR SDRAM CONTROLLER RENEW
标准包装: 1
系列: *
类型: MegaCore
功能: DDR SDRAM 控制器
许可证: 续用许可证
1–4
Burst lengths:
Chapter 1: About This Compiler
Performance and Resource Utilization
2, 4, or 8, for DDR SDRAM
4, for DDR2 SDRAM
Banks:
4 for DDR SDRAM
4 or 8 for DDR2 SDRAM
Support for ODT in DDR2 SDRAM
Performance and Resource Utilization
Table 1–3 shows typical performance results for the DDR SDRAM controller using the
Quartus II software version 9.0.
Table 1–3. Typical Performance
System fMAX (MHz)
Device
Cyclone (EP1C20F400C6)
Cyclone II (EP2C35F672C6)
Stratix (EP1S25F780C5)
Stratix II (EP2S60F1020C3)
Stratix II GX (EP2SGX30CF780C3)
DDR SDRAM
133
167
200
200
200 (2)
DDR2 SDRAM
167
267 (1)
267 (1) (2)
Note to Table 1–3 :
(1) For information on a solution that achieves speeds greater than 267 MHz (533 Mbps) up to 333 MHz (667 Mbps),
contact your local Altera sales representative. To achieve speeds greater than 267 MHz, a new dynamic
autocalibration circuit is required.
(2) Pending device characterization.
f
For more information on device performance, refer to the relevant device handbook.
Table 1–4 shows typical sizes in logic elements (LEs) or adaptive look-up tables
(ALUTs) for the DDR SDRAM controller.
Table 1–4. Typical Size (Part 1 of 2) (Note 1)
Combinational
Device
Cyclone
Cyclone II
Memory Width (Bits)
16
32
16
32
64
72
LEs
860
1,050
940
1,120
1,500
1,600
ALUTs
Logic Registers
M4K RAM Blocks (2)
1
2
1
2
4
5
March 2009 Altera Corporation
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