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IS42S16800B-7TL-TR PDF预览

IS42S16800B-7TL-TR

更新时间: 2024-11-24 13:08:55
品牌 Logo 应用领域
美国芯成 - ISSI 存储内存集成电路光电二极管动态存储器时钟
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60页 564K
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IS42S16800B-7TL-TR 数据手册

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®
IS42S81600B  
IS42S16800B  
ISSI  
16Meg x 8, 8Meg x16  
128-MBIT SYNCHRONOUS DRAM  
MAY 2006  
OVERVIEW  
FEATURES  
ISSI's 128Mb Synchronous DRAM achieves high-speed  
data transfer using pipeline architecture. All inputs and  
outputs signals refer to the rising edge of the clock  
input.The 128Mb SDRAM is organized as follows.  
• Clock frequency: 167, 143, 133 MHz  
• Fully synchronous; all signals referenced to a  
positive clock edge  
• Internal bank for hiding row access/precharge  
• Power supply  
VDD  
3.3V 3.3V  
VDDQ  
IS42S81600B  
4M x8x4 Banks  
54-pin TSOPII  
IS42S16800B  
2M x16x4 Banks  
54-pin TSOPII  
IS42S81600B  
IS42S16800B  
3.3V 3.3V  
• LVTTL interface  
• Programmable burst length  
– (1, 2, 4, 8, full page)  
• Programmable burst sequence:  
Sequential/Interleave  
• Auto Refresh (CBR)  
KEY TIMING PARAMETERS  
• Self Refresh with programmable refresh periods  
• 4096 refresh cycles every 64 ms  
Parameter  
-6  
-7  
-75E  
Unit  
• Random column address every clock cycle  
• Programmable CAS latency (2, 3 clocks)  
Clk Cycle Time  
CAS Latency = 3  
6
7
10  
7.5  
ns  
ns  
CAS Latency = 2  
• Burst read/write and burst read/single write  
operations capability  
Clk Frequency  
CAS Latency = 3  
CAS Latency = 2  
167  
143  
100  
133  
Mhz  
Mhz  
• Burst termination by burst stop and precharge  
command  
Access Time from Clock  
CAS Latency = 3  
CAS Latency = 2  
• Industrial Temperature Availability  
• Lead-freeAvailability  
5.4  
5.4  
6
6
ns  
ns  
Copyright © 2006 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. — www.issi.com — 1-800-379-4774  
1
Rev. E  
05/01/06  

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