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EM6A9320_06 参数 Datasheet PDF下载

EM6A9320_06图片预览
型号: EM6A9320_06
PDF下载: 下载PDF文件 查看货源
内容描述: 4M ×32 DDR SDRAM [4M x 32 DDR SDRAM]
分类和应用: 动态存储器双倍数据速率
文件页数/大小: 17 页 / 363 K
品牌: ETRON [ ETRON TECHNOLOGY, INC. ]
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EtronTech
Features
Fast clock rate: 350/333/300/285/250/200 MHz
Differential Clock CK & CK# input
4 Bi-directional DQS. Data transactions on both
edges of DQS (1DQS / Byte)
DLL aligns DQ and DQS transitions
Edge aligned data & DQS output
Center aligned data & DQS input
4 internal banks, 1M x 32-bit for each bank
Programmable mode and extended mode
registers
- CAS# Latency: 3, 4, 5
- Burst length: 2, 4, 8
- Burst Type: Sequential & Interleave
Full page burst length for sequential type only
Start address of full page burst should be even
All inputs except DQ’s & DM are at the positive
edge of the system clock
No Write-Interrupted by Read function
4 individual DM control for write masking only
Auto Refresh and Self Refresh
4096 refresh cycles / 32ms
Power supplies up to 350/333/300/285MHz:
V
DD
= 2.8V
±
5%
V
DDQ
= 2.8V
±
5%
Power supplies up to 250/200MHz:
V
DD
= 2.8V
±
5%
V
DDQ
= 2.8V
±
5%
Interface : SSTL_2 I/O compatible
Standard 144-ball FBGA package
EM6A9320
4M x 32 DDR SDRAM
Preliminary (Rev 0.6 5/2006)
Overview
The EM6A9320 DDR SDRAM is a high-speed CMOS
double data rate synchronous DRAM containing 128
Mbits. It is internally configured as a quad 1M x 32
DRAM with a synchronous interface (all signals are
registered on the positive edge of the clock signal, CK).
Data outputs occur at both rising edges of CK and CK#.
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.
The EM6A9320 provides programmable Read or Write
burst lengths of 2, 4, 8. An auto precharge function may
be enabled to provide a self-timed row precharge that is
initiated at the end of the burst sequence.
The refresh functions, either Auto or Self Refresh are
easy to use.
In addition, EM6A9320 features programmable DLL
option. By having a programmable mode register and
extended mode register, the system can choose the
most suitable modes to maximize its performance.
These devices are well suited for applications requiring
high memory bandwidth, result in a device particularly
well suited to high performance main memory and
graphics applications.
Ordering Information
Part Number
EM6A9320BI-2.8
EM6A9320BI-3.0
EM6A9320BI-3.3
EM6A9320BI-3.5
EM6A9320BI-3.6
EM6A9320BI-4
EM6A9320BI-5
Frequency
350MHz
333MHz
300MHz
285MHz
275MHz
250MHz
200MHz
Power Supply
Package
FBGA
FBGA
FBGA
FBGA
FBGA
FBGA
FBGA
V
DD
2.8V
V
DDQ
2.8V
Etron Technology, Inc.
No. 6, Technology Rd. V, Science-Based Industrial Park, Hsinchu, Taiwan 30077, R.O.C.
TEL: (886)-3-5782345
FAX: (886)-3-5778671
Etron Technology, Inc., reserves the right to make changes to its products and specifications without notice.