IS43LR32160B, IS46LR32160B
Advanced Information
4M x 32Bits x 4Banks Mobile DDR SDRAM
Description
The IS43/46LR32160B is 536,870,912 bits CMOS Mobile Double Data Rate Synchronous DRAM organized as 4 banks of 4,194,304 words x
32 bits. This product uses a double-data-rate architecture to achieve high-speed operation. The Data Input/ Output signals are transmitted
on a 32-bit bus. The double data rate architecture is essentially a 2N prefetch architecture with an interface designed to transfer two data
words per clock cycle at the I/O pins. This product offers fully synchronous operations referenced to both rising and falling edges of the clock.
The data paths are internally pipelined and 2n-bits prefetched to achieve very high bandwidth. All input and output voltage levels are
compatible with LVCMOS.
Features
• JEDEC standard 1.8V power supply.
• VDD = 1.8V, VDDQ = 1.8V
• 64ms refresh period (8K cycle)
• Auto & self refresh
• Four internal banks for concurrent operation
• MRS cycle with address key programs
- CAS latency 2, 3 (clock)
• Concurrent Auto Precharge
• Maximum clock frequency up to 166MHZ
• Maximum data rate up to 333Mbps/pin
• Special Power Saving supports.
- PASR (Partial Array Self Refresh)
- Auto TCSR (Temperature Compensated Self Refresh)
- Deep Power Down Mode
- Burst length (2, 4, 8, 16)
- Burst type (sequential & interleave)
• Fully differential clock inputs (CK, /CK)
• All inputs except data & DM are sampled at the rising
edge of the system clock
- Programmable Driver Strength Control by Full Strength
or 1/2, 1/4, 1/8 of Full Strength
• Data I/O transaction on both edges of data strobe
• Bidirectional data strobe per byte of data (DQS)
• DM for write masking only
• LVCMOS compatible inputs/outputs
• 90-Ball FBGA package
• Edge aligned data & data strobe output
• Center aligned data & data strobe input
Copyright © 2010 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its
products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services
described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information
and before placing orders for products.
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or
malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or
effectiveness. Products are not authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to
its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
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www.issi.com - dram@issi.com
Rev.00B | Dec. 2010
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