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IS61NLF409618B PDF预览

IS61NLF409618B

更新时间: 2024-09-17 01:01:31
品牌 Logo 应用领域
美国芯成 - ISSI /
页数 文件大小 规格书
38页 1511K
描述
100 percent bus utilization

IS61NLF409618B 数据手册

 浏览型号IS61NLF409618B的Datasheet PDF文件第2页浏览型号IS61NLF409618B的Datasheet PDF文件第3页浏览型号IS61NLF409618B的Datasheet PDF文件第4页浏览型号IS61NLF409618B的Datasheet PDF文件第5页浏览型号IS61NLF409618B的Datasheet PDF文件第6页浏览型号IS61NLF409618B的Datasheet PDF文件第7页 
IS61NLF204836B/IS61NVF/NVVF204836B  
IS61NLF409618B/IS61NVF/NVVF409618B  
2M x 36 and 4M x 18  
72Mb, FLOW THROUGH 'NO WAIT' STATE BUS SRAM  
ADVANCED INFORMATION  
FEBRUARY 2013  
FEATURES  
DESCRIPTION  
The72Megproductfamilyfeatureshigh-speed,low-power  
synchronousstaticRAMsdesignedtoprovideaburstable,  
high-performance, 'no wait' state, device for networking  
and communications applications. They are organized as  
2,096,952 words by 36 bits and 4,193,904 words by 18  
bits, fabricated with ISSI's advanced CMOS technology.  
• 100 percent bus utilization  
• No wait cycles between Read and Write  
• Internal self-timed write cycle  
• Individual Byte Write Control  
• Single Read/Write control pin  
Incorporating a 'no wait' state feature, wait cycles are  
eliminated when the bus switches from read to write, or  
write to read. This device integrates a 2-bit burst counter,  
high-speed SRAM core, and high-drive capability outputs  
into a single monolithic circuit.  
• Clock controlled, registered address,  
data and control  
• Interleaved or linear burst sequence control us-  
ing MODE input  
Allsynchronousinputspassthroughregistersarecontrolled  
byapositive-edge-triggeredsingleclockinput.Operations  
may be suspended and all synchronous inputs ignored  
when Clock Enable, CKE is HIGH. In this state the internal  
device will hold their previous values.  
• Three chip enables for simple depth expansion  
and address pipelining  
• Power Down mode  
• Common data inputs and data outputs  
CKE pin to enable clock and suspend operation  
AllRead,WriteandDeselectcyclesareinitiatedbytheADV  
input. When the ADV is HIGH the internal burst counter  
is incremented. New external addresses can be loaded  
when ADV is LOW.  
• JEDEC 100-pin TQFP, 119-ball PBGA, and 165-  
ball PBGA packages  
Write cycles are internally self-timed and are initiated  
by the rising edge of the clock inputs and when WE is  
LOW. Separate byte enables allow individual bytes to be  
written.  
• Power supply:  
NLF: Vdd 3.3V (± 5%), Vddq 3.3V/2.5V (± 5%)  
NVF: Vdd 2.5V (± 5%), Vddq 2.5V (± 5%)  
NVVF: Vdd 1.8V (± 5%), Vddq 1.8V (± 5%)  
A burst mode pin (MODE) defines the order of the burst  
sequence.WhentiedHIGH,theinterleavedburstsequence  
is selected. When tied LOW, the linear burst sequence is  
selected.  
• JTAG Boundary Scan for PBGA packages  
• Industrial temperature available  
• Lead-free available  
FAST ACCESS TIME  
Symbol  
Parameter  
6.5  
6.5  
7.5  
133  
7.5  
7.5  
8.5  
117  
Units  
ns  
tkq  
Clock Access Time  
Cycle Time  
tkc  
ns  
Frequency  
MHz  
Copyright © 2013 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  
Integrated Silicon Solution, Inc. — www.issi.com  
1
Rev. 00C  
02/20/2013  

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