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MMFR-29C516E-31SC PDF预览

MMFR-29C516E-31SC

更新时间: 2024-09-17 21:16:47
品牌 Logo 应用领域
爱特美尔 - ATMEL 逻辑集成电路
页数 文件大小 规格书
16页 91K
描述
Error Detection And Correction Circuit, CMOS Series, 16-Bit, True Output, CMOS, PQFP100, L LEAD, MQFP-100

MMFR-29C516E-31SC 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Transferred零件包装代码:QFP
包装说明:QFP, QFP100,.7X.9针数:100
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.56系列:CMOS
JESD-30 代码:R-PQFP-G100JESD-609代码:e0
长度:20 mm逻辑集成电路类型:ERROR DETECTION AND CORRECTION CIRCUIT
湿度敏感等级:3位数:16
功能数量:1端子数量:100
最高工作温度:125 °C最低工作温度:-55 °C
输出极性:TRUE封装主体材料:PLASTIC/EPOXY
封装代码:QFP封装等效代码:QFP100,.7X.9
封装形状:RECTANGULAR封装形式:FLATPACK
峰值回流温度(摄氏度):225电源:5 V
传播延迟(tpd):31 ns认证状态:Not Qualified
筛选级别:ESA/SCC-9000C座面最大高度:3.81 mm
子类别:Arithmetic Circuits最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):4.5 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:CMOS
温度等级:MILITARY端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:0.65 mm
端子位置:QUAD处于峰值回流温度下的最长时间:30
宽度:14 mmBase Number Matches:1

MMFR-29C516E-31SC 数据手册

 浏览型号MMFR-29C516E-31SC的Datasheet PDF文件第2页浏览型号MMFR-29C516E-31SC的Datasheet PDF文件第3页浏览型号MMFR-29C516E-31SC的Datasheet PDF文件第4页浏览型号MMFR-29C516E-31SC的Datasheet PDF文件第5页浏览型号MMFR-29C516E-31SC的Datasheet PDF文件第6页浏览型号MMFR-29C516E-31SC的Datasheet PDF文件第7页 
29C516E  
16–Bit Flow–Through EDAC  
Error Detection And Correction unit  
1. Introduction  
The 29C516E Atmel EDAC is a very low power  
the corrupted data is placed on the output port and the  
flow–through 16–bit Error Detection And Correction unit Uncorrectable Error Flag is set. Note that when there is  
(EDAC) with two user data buses. The EDAC is used in more than two errors, then some bit patterns may appear  
a high integrity system for monitoring and correction of as possible correctable errors. Therefore, if the  
data values coming from the memory space. During a environment produces this type of error, the EDAC must  
processor write cycle, at each memory location (16–bit be used in detect and provide no automatic correction.  
width), EDAC calculated checkword (6 or 8–bit width) is Data and syndrome analysis must be done.  
added. When performing a read operation from memory,  
the 29C516E verifies the entire checkword and data  
The 29C516E acts as a data buffer for µP–memory  
interfacing. A flow–through EDAC is placed in the data  
combination. It detects and can correct 100% of all the  
bus path, between the processor and the memory to be  
single–bit errors and it detects all double–bit errors.  
protected. This component is able to serve two different  
When the 29C516E uses 6–checkbit, it can detect any  
users of one memory space. So, it forms the interface  
error on any single 4–bit memory chip. The 8–check–bit  
between the 22/24–bit (16+6/16+8) memory data bus and  
option gives the additional capability to detect all errors  
the two 16–bit processor data busses with a high drive  
on any single 8–bit memory chip. All the errors are  
capability (–12.8 mA). The two data ports can be used to  
signaled to the master system (via 2 error Flags) in order  
create a dual port bus in front of memory space. The  
User–1(2) can transfer data from/to the memory or  
to allow the processor to make the required action.  
The 29C516E operates in two possible modes: corrected  
or detected mode. In the corrected mode, the single–bit in  
error is complemented (corrected). Then, the available  
entire data is placed on the output port and the Correctable  
Error Flag is set. In case of double–bit errors (or more),  
from/to the User–2(1), by–passing the memory. During  
read or write memory cycles processed by the User–1(2),  
the User–2(1) have the possibility to listen the  
transferred data.  
2. Features  
D Very Low Power CMOS  
D Correctable and Uncorrectable Error Flags  
D Two User Data Buses  
D 16–Bit operation with 6 or 8 Check Bits  
D Fast Error Detection : 31 ns (max.)  
D Fast Error Correction : 32 ns (max.)  
D Corrects all Single–Bit Errors  
D User to User Transfer and Listening operation  
D High Drive Capability on Buses : –12.8 mA  
D TTL Compatible  
D Detects all Double–Bit Errors  
D Single 5V ±10% Power Supply  
D 100 Pin Multilayer Quad Flat Pack  
(Flat leaded or L leaded).  
D Detects some Multi–Bit Errors  
D Detects Chip Errors (x1, x4 & x8 RAM Format)  
Atmel Corporation  
Rev. D (09 Dec. 97)  
1

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