EM488M3244VBD
eorex
256Mb (2M
4Bank
32) Synchronous DRAM
Features
Description
• 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
The EM488M3244VBD 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.
• 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
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).
• Auto Refresh and Self Refresh
• 4,096 Refresh Cycles / 64ms (15.625us)
Ordering Information
Part No
Part No
Max. Freq
Max. Freq
Organization
Organization
Package
Package
Grade
Grade
Pb
Pb
EM488M3244VBD-75F
8M X 32
133MHz @CL3
TFBGA-90B
Commercial
Free
Free
EM488M3244VBD-75F
4M X 32
133MHz @CL3
TFBGA -90B Commercial
EM488M3244VBD-7F
8M X 32
4M X 32
143MHz @CL3
133MHz @CL3
TFBGA-90B Commercial
TFBGA -90B Extend temp.
Free
Free
EM488M3244VBD-75FE
EM488M3244VBD-75FE
EM488M3244VBD-7FE
EM488M3244VBD-75FI
EM488M3244VBD-7FI
8M X 32
8M X 32
8M X 32
8M X 32
133MHz @CL3
143MHz @CL3
133MHz @CL3
143MHz @CL3
TFBGA-90B
TFBGA-90B
Extend temp.
Extend temp.
Free
Free
TFBGA-90B Industrial temp. Free
TFBGA-90B Industrial temp. Free
* EOREX reserves the right to change products or specification without notice.
Dec. 2013
www.eorex.com
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EOREX [ EOREX CORPORATION ]
