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X84641V20I-2.5 PDF预览

X84641V20I-2.5

更新时间: 2024-02-19 05:38:52
品牌 Logo 应用领域
XICOR 内存集成电路光电二极管可编程只读存储器电动程控只读存储器电可擦编程只读存储器时钟
页数 文件大小 规格书
18页 87K
描述
uPort Saver EEPROM

X84641V20I-2.5 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:PLASTIC, TSSOP-20Reach Compliance Code:unknown
风险等级:5.87Is Samacsys:N
最大时钟频率 (fCLK):5 MHz数据保留时间-最小值:100
耐久性:100000 Write/Erase CyclesJESD-30 代码:R-PDSO-G20
JESD-609代码:e0长度:6.5 mm
内存密度:65536 bit内存集成电路类型:EEPROM
内存宽度:8功能数量:1
端子数量:20字数:8192 words
字数代码:8000工作模式:SYNCHRONOUS
最高工作温度:85 °C最低工作温度:-40 °C
组织:8KX8输出特性:3-STATE
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP20,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH并行/串行:SERIAL
电源:3/5 V认证状态:Not Qualified
座面最大高度:1.2 mm串行总线类型:I2C
最大待机电流:0.000001 A子类别:EEPROMs
最大压摆率:0.002 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):2.5 V标称供电电压 (Vsup):3.3 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL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:DUAL宽度:4.4 mm
最长写入周期时间 (tWC):0.2 ms写保护:HARDWARE/SOFTWARE
Base Number Matches:1

X84641V20I-2.5 数据手册

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APPLICATION NOTE  
A V A I L A B L E  
AN95 • AN103 • AN107  
16K/64K/128K  
MPS EEPROM  
X84161/641/129  
µPort Saver EEPROM  
DESCRIPTION  
FEATURES  
• Up to 10MHz data transfer rate  
• 25ns Read Access Time  
• Direct Interface to Microprocessors and  
Microcontrollers  
—Eliminates I/O port requirements  
—No interface glue logic required  
Eliminates need for parallel to serial converters  
• Low Power CMOS  
—1.8V–3.6V, 2.5V–5.5V and 5V ±10% Versions  
—Standby Current Less than 1µA  
—Active Current Less than 1mA  
• Byte or Page Write Capable  
—32-Byte Page Write Mode  
• Typical Nonvolatile Write Cycle Time: 2ms  
• High Reliability  
—100,000 Endurance Cycles  
—Guaranteed Data Retention: 100Years  
The µPort Saver memories need no serial ports or spe-  
cial hardware and connect to the processor memory bus.  
Replacing bytewide data memory, the µPort Saver uses  
bytewide memory control functions, takes a fraction of  
the board space and consumes much less power.  
Replacing serial memories, the µPort Saver provides all  
the serial benefits, such as low cost, low power, low volt-  
age, and small package size while releasing I/Os for  
more important uses.  
The µPort Saver memory outputs data within 25ns of an  
active read signal. This is less than the read access time  
of most hosts and provides “no-wait-state” operation.  
This prevents bottlenecks on the bus. With rates to 10  
MHz, the µPort Saver supplies data faster than required  
by most host read cycle specifications. This eliminates  
the need for software NOPs.  
The µPort Saver memories communicate over one line of  
the data bus using a sequence of standard bus read and  
write operations. This “bit serial” interface allows the  
µPort Saver to work well in 8-bit, 16 bit, 32-bit, and 64-bit  
systems.  
A Write Protect (WP) pin prevents inadvertent writes to  
the memory.  
Xicor EEPROMs are designed and tested for applica-  
tions requiring extended endurance. Inherent data reten-  
tion is greater than 100 years.  
BLOCK DIAGRAM  
System Connection  
Internal Block Diagram  
MPS  
WP  
H.V. GENERATION  
TIMING & CONTROL  
A15  
µP  
µC  
A0  
D7  
DSP  
ASIC  
RISC  
CE  
I/O  
OE  
EEPROM  
ARRAY  
COMMAND  
DECODE  
AND  
CONTROL  
LOGIC  
X
DEC  
D0  
OE  
WE  
16K x 8  
8K x 8  
2K x 8  
P0/CS  
P1/CLK  
P2/DI  
Ports  
Saved  
WE  
P3/DO  
Y DECODE  
DATA REGISTER  
7008 FRM F02.1  
Xicor, Inc. 1994, 1997Patents Pending  
7008-1.2 8/26/97 T2/C0/D0 SH  
Characteristics subject to change without notice  
1

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