Alliance Memory AS4C SDRAM
Alliance Memory AS4C SDRAM is high-speed CMOS synchronous DRAM containing 64Mbits, 128Mbits, or 256Mbits. They are internally configured as 4 banks of 1M, 2M, or 4M word x 16 DRAM with a synchronous interface (all signals are registered on the positive edge of the clock signal, CLK). Read and write accesses to the SDRAM are burst oriented, accesses start at a selected location and continue for a programmed number of locations in a programmed sequence. Accesses begin with the registration of a BankActivate command, which is then followed by a Read or Write command.
Alliance Memory AS4C Series SDRAM provides for programmable Read or Write burst length of 1, 2, 4, 8, or full page, with a burst termination option. An auto precharge function is enabled to provide a self-timed row precharge initiated at the end of the burst sequence. The refresh functions, either Auto-Refresh or Self-Refresh, are easy to use. By having a programmable mode register, the system can choose the most suitable modes to maximize its performance.
These devices are ideal for applications requiring high memory bandwidth as well as high-performance PC applications.
Features
- Low power consumption of +1.2V (±0.06V)
- Offered in 96-ball and 78-ball FBGA packages
- Internally configured
- 8 banks x 256Mb x 16 bit
- 16 banks x 512Mb x 8 bit
- Fast clock speeds of 1200MHz and 1333MHz
- Support sequential and interleave burst types with read or write burst lengths of BL8/BC4/BC4 or 8 on the fly
- 2400Mbps/pin and 2666Mbps/pin extremely high transfer rates
- Extended commercial (0°C to +95°C) and industrial (-40°C to +95°C) temperature ranges
- Auto pre-charge function provides a self-timed row pre-charge initiated at the end of the burst sequence
- Easy-to-use refresh functions include auto- or self-refresh
- JEDEC- and RoHS-compliant
- Lead (Pb)- and halogen-free
Applications
- Portable electronics
- Desktop computers
- Servers for industrial
- Medical
- IoT
- Automotive
- Gaming
- Consumer
發佈日期: 2011-11-10
| 更新日期: 2022-03-11