Synchronous DRAM. EM48AM3244VBA Datasheet

EM48AM3244VBA DRAM. Datasheet pdf. Equivalent

Part EM48AM3244VBA
Description Synchronous DRAM
Feature www.DataSheet4U.com eorex Features EM488M3244VBA 256Mb (2M×4Bank×32) Synchronous DRAM Description .
Manufacture Eorex
Total Page 17 Pages
Datasheet
Download EM48AM3244VBA Datasheet



EM48AM3244VBA
eorexwww.DataSheet4U.com
EM488M3244VBA
256Mb (2M×4Bank×32) Synchronous DRAM
Features
Fully Synchronous to Positive Clock Edge
Single 3.3V ±0.3V Power Supply
LVTTL Compatible with Multiplexed Address
Programmable Burst Length (B/L) - 1, 2, 4, 8
or Full Page
Programmable CAS Latency (C/L) - 2 or 3
Data Mask (DQM) for Read / Write Masking
Programmable Wrap Sequence
Sequential (B/L = 1/2/4/8/full Page)
Interleave (B/L = 1/2/4/8)
Burst Read with Single-bit Write Operation
All Inputs are Sampled at the Rising Edge of
the System Clock
Auto Refresh and Self Refresh
4,096 Refresh Cycles / 64ms (15.625us)
Description
The EM488M3244VBA is Synchronous Dynamic
Random Access Memory (SDRAM) organized as
2Meg words x 4 banks by 32 bits. All inputs and
outputs are synchronized with the positive edge of
the clock.
The 256Mb SDRAM uses synchronized pipelined
architecture to achieve high speed data transfer
rates and is designed to operate at 3.3V low power
memory system. It also provides auto refresh with
power saving / down mode. All inputs and outputs
voltage levels are compatible with LVTTL.
Available packages: TFBGA-90B(13mmx8mm).
Ordering Information
Part No
Organization Max. Freq
EM488M3244VBA-75F
8M X 32
133MHz @CL3
Package
Grade Pb
TFBGA -90B Commercial Free
* EOREX reserves the right to change products or specification without notice.
Jul. 2006
www.eorex.com
1/17



EM48AM3244VBA
eorex
Pin Assignment
EM488M3244VBA
1
DQ26
DQ28
VSSQ
VSSQ
VDDQ
VSS
A4
A7
CLK
DQM1
VDDQ
VSSQ
VSSQ
DQ11
DQ13
2
DQ24
VDDQ
DQ27
DQ29
DQ31
DQM3
A5
A8
CKE
NC
DQ8
DQ10
DQ12
VDDQ
DQ15
3
VSS
VSSQ
DQ25
DQ30
NC
A3
A6
NC
A9
NC
VSS
DQ9
DQ14
VSSQ
VSS
7
A VDD
B VDDQ
C DQ22
D DQ17
E NC
F A2
G A10
H NC
J BA0
K /CAS
L VDD
M DQ6
N DQ1
P VDDQ
R VDD
90ball TFBGA / (13mm x 8mm)
8
DQ23
VSSQ
DQ20
DQ18
DQ16
DQM2
A0
BA1
/CS
/WE
DQ7
DQ5
DQ3
VSSQ
DQ0
9
DQ21
DQ19
VDDQ
VDDQ
VSSQ
VDD
A1
A11
/RAS
DQM0
VSSQ
VDDQ
VDDQ
DQ4
DQ2
Jul. 2006
www.eorex.com
2/17





@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)