EM6A9320BIB
EtronTech
4M x 32 bit DDR Synchronous DRAM (SDRAM)
Etron Confidential
Advanced (Rev 1.0, July /2012)
Features
Overview
Fast clock rate: 200/250 MHz
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
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Differential Clock CK &
input
CK
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
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edges of CK and
. Read and write accesses to the
CK
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
Programmable mode and extended mode registers
- CAS Latency: 2, 2.5, 3
BankActivate command, which is then followed by a
Read or Write command.
- Burst length: 2, 4, 8
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.
- Burst Type: Sequential & Interleave
All inputs except DQ’s & DM are at the positive
edge of the system clock
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4 individual DM control for write masking only
Auto Refresh and Self Refresh
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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.
4096 refresh cycles / 64ms
5℃
Industrial Operating Temperature: -40~8
Power supplies: VDD & VDDQ = 2.5V ± 0.2V
Interface: SSTL_2 I/O compatible
144-ball 12 x 12 x 1.4mm LFBGA package
-Pb and Halogen Free
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Table1. Ordering Information
Part Number
EM6A9320BIB-4IH
EM6A9320BIB-5IH
Clock Frequency
Data Rate
Power Supply
Package
LFBGA
LFBGA
250MHz
200MHz
500Mbps/pin VDD 2.5V, VDDQ 2.5V
400Mbps/pin VDD 2.5V, VDDQ 2.5V
BI: indicates LFBGA package
B: indicates generation code
I: indicates Industrial grade
H: indicates Pb and Halogen Free for LFBGA Package
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.
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