Synchronous DRAM. EM488M1644VTB Datasheet

EM488M1644VTB DRAM. Datasheet pdf. Equivalent

Part EM488M1644VTB
Description 128Mb Synchronous DRAM
Feature eorex EM488M1644VTB 128Mb (2M×4Bank×16) Synchronous DRAM Features • Fully Synchronous to Positive.
Manufacture Eorex
Datasheet
Download EM488M1644VTB Datasheet

eorex EM488M1644VTB 128Mb (2M×4Bank×16) Synchronous DRAM EM488M1644VTB Datasheet
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EM488M1644VTB
eorex
EM488M1644VTB
128Mb (2M×4Bank×16) 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 (15.6us)
Description
The EM488M1644VTB is Synchronous Dynamic
Random Access Memory (SDRAM) organized as
2Meg words x 4 banks by 16 bits. All inputs and
outputs are synchronized with the positive edge of
the clock.
The 128Mb 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:TSOPII 54P 400mil.
Ordering Information
Part No
EM488M1644VTB-75F
EM488M1644VTB-7F
EM488M1644VTB-6F
Organization
8M X 16
8M X 16
8M X 16
Max. Freq
133MHz @CL3
143MHz @CL3
166MHz @CL3
Package
54pin TSOP(ll)
54pin TSOP(ll)
54pin TSOP(ll)
Grade
Commercial
Commercial
Commercial
Pb
Free
Free
Free
* EOREX reserves the right to change products or specification without notice.
Dec. 2006
1/17
www.eorex.com



EM488M1644VTB
eorex
Pin Assignment
EM488M1644VTB
54pin TSOP-II / (400mil × 875mil) / (0.8mm Pin pitch)
Dec. 2006
2/17
www.eorex.com





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