EtronTech
Etron Confidential
Features
•
Fast clock rate: 200/250 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
- Burst length: 2, 4, 8
- Burst Type: Sequential & Interleave
•
All inputs except DQ’s & DM are at the positive
edge of the system clock
•
4 individual DM control for write masking only
•
Auto Refresh and Self Refresh
•
4096 refresh cycles / 32ms
•
Power supplies: V
DD &
V
DDQ
= 2.5V
±
5%
•
Interface: SSTL_2 I/O compatible
•
Package: 144-ball LFBGA
-Pb Free and Halogen Free
EM6A9320BIA
Preliminary (Rev 1.7 Nov. /2009)
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.
4M x 32 bit DDR Synchronous DRAM (SDRAM)
Table1. Ordering Information
Part Number
Clock Frequency
Data Rate
EM6A9320BIA-4H
250MHz
500Mbps/pin
EM6A9320BIA-5H
200MHz
400Mbps/pin
BI: indicates LFBGA package
A: indicates generation code
H: indicates Pb Free and Halogen Free for LFBGA Packag
Power Supply
V
DD
2.5V, V
DDQ
2.5V
V
DD
2.5V, V
DDQ
2.5V
Package
LFBGA
LFBGA
Etron Technology, Inc.
No. 6, Technology Rd. V, Hsinchu Science Park, Hsinchu, Taiwan 30078, R.O.C.
TEL: (886)-3-5782345
FAX: (886)-3-5778671
Etron Technology, Inc. reserves the right to change products or specification without notice.
ETRON [ ETRON TECHNOLOGY, INC. ]
