IS43LR16320B, IS46LR16320B
1 1
Rev. A | Apr. 2012 www.issi.com - dram@issi.com
8M x 16Bits x 4Banks Mobile DDR SDRAM
Description
The IS43/46LR16320B is a 536,870,912 bits CMOS Mobile Double Data Rate Synchronous DRAM organized as 4 banks of 8,388,608 words x
16 bits. This product uses a double-data-rate architecture to achieve high-speed opera tion. The Data Input/ Output signals are transmitted
on a 16bit bus. The double data rate architecture is essentially a 2
N
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 2 n-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
• Four internal banks for concurre nt operation
• MRS cycle with address key programs
- CAS latency 2, 3 (clock)
- B ur st leng t h (2, 4, 8, 16)
- Burst type (sequential & interleave)
• Fully differential c lock inputs (CK, /CK)
• All inputs except data & DM are sampled at the rising
edge of the system clock
• Data I/O transaction on both edges of data strobe
• Bidirectional data strobe per byte of data (DQS)
• DM for write masking only
• Edge aligned data & data strobe output
• Center aligned data & data strobe input
• 64ms refresh period (8K cycle)
• Auto & self refresh
• Concurrent Auto Precharge
• Maximum clock frequency up to 166MHZ
• Maximum data rate up to 333Mbps/pin
• Power Saving support
- PASR (Partial Array Self Refresh)
- Auto TCSR (Temperature Compensated Self Refresh)
- Deep Power Down Mode
- Programmable Driver Strength Control by Full Strength
o r 1/2, 1/4, 1/8 o f Full Stren gth
• LVCMOS compatible inputs/outputs
• 60-Ball FBGA package
Copyright © 2010 Integrated Sili con Solution, Inc . All rights reserved. IS S I reserves the right t o make changes to this specification and its
products at any time without noti ce. ISSI ass umes no liability arisi ng out of the appl i cation or use of any inf ormation, products or services
described herein. Custom ers are advised to obtain the latest version of this device specif ic ation before relying on any publi shed inf orm ati on
and before pl acing orders for produc ts.