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X25020P-2.7 PDF预览

X25020P-2.7

更新时间: 2024-09-25 22:12:55
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
14页 64K
描述
SPI Serial E2PROM with Block LockTM Protection

X25020P-2.7 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:PLASTIC, DIP-8Reach Compliance Code:unknown
风险等级:5.88其他特性:100K ENDURANCE CYCLES; DATA RETENTION = 100 YEARS
最大时钟频率 (fCLK):1 MHz数据保留时间-最小值:100
耐久性:100000 Write/Erase CyclesJESD-30 代码:R-PDIP-T8
JESD-609代码:e0长度:10.03 mm
内存密度:2048 bit内存集成电路类型:EEPROM
内存宽度:8功能数量:1
端子数量:8字数:256 words
字数代码:256工作模式:SYNCHRONOUS
最高工作温度:70 °C最低工作温度:
组织:256X8输出特性:3-STATE
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装等效代码:DIP8,.3封装形状:RECTANGULAR
封装形式:IN-LINE并行/串行:SERIAL
电源:3/5 V认证状态:Not Qualified
座面最大高度:4.32 mm串行总线类型:SPI
最大待机电流:0.00015 A子类别:EEPROMs
最大压摆率:0.003 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):2.7 V标称供电电压 (Vsup):2.7 V
表面贴装:NO技术:CMOS
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL宽度:7.62 mm
最长写入周期时间 (tWC):10 ms写保护:HARDWARE/SOFTWARE
Base Number Matches:1

X25020P-2.7 数据手册

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APPLICATION NOTES  
A V A I L A B L E  
AN9 • AN18 • AN31 • AN37 • AN40  
2K  
X25020  
SPI Serial E2PROM with Block LockTM Protection  
DESCRIPTION  
256 x 8 Bit  
FEATURES  
1MHz Clock Rate  
The X25020 is a CMOS 2048-bit serial E2PROM, inter-  
nally organized as 256 x 8. The X25020 features a serial  
interface and software protocol allowing operation on a  
simple three-wire bus. The bus signals are a clock input  
(SCK) plus separate data in (SI) and data out (SO) lines.  
Access to the device is controlled through a chip select  
(CS) input, allowing any number of devices to share the  
same bus.  
SPI Modes (0,0 & 1,1)  
256 X 8 Bits  
—4 Byte Page Mode  
Low Power CMOS  
—10µA Standby Current  
—3mA Active Write Current  
2.7V To 5.5V Power Supply  
Block Lock Protection  
—Protect 1/4, 1/2 or all of E2PROM Array  
Built-in Inadvertent Write Protection  
—Power-Up/Power-Down protection circuitry  
—Write Latch  
The X25020 also features two additional inputs that  
provide the end user with added flexibility. By asserting  
the HOLD input, the X25020 will ignore transitions on its  
inputs, thus allowing the host to service higher priority  
interrupts.TheWPinputcanbeusedasahardwireinput  
totheX25020disablingallwriteattempts,thusproviding  
a mechanism for limiting end user capability of altering  
the memory.  
—Write Protect Pin  
Self-Timed Write Cycle  
—5ms Write Cycle Time (Typical)  
High Reliability  
—Endurance: 100,000 cycles per byte  
—Data Retention: 100 Years  
—ESD protection: 2000V on all pins  
8-Lead PDlP Package  
The X25020 utilizes Xicor’s proprietary Direct Write™  
cell, providing a minimum endurance of 100,000 cycles  
per byte and a minimum data retention of 100 years.  
8-Lead SOIC Package  
FUNCTIONAL DIAGRAM  
WRITE  
STATUS  
PROTECT  
REGISTER  
LOGIC  
X DECODE  
LOGIC  
256 BYTE  
ARRAY  
16  
16  
32  
16 X 32  
16 X 32  
32 X 32  
SO  
COMMAND  
DECODE  
AND  
CONTROL  
LOGIC  
SI  
SCK  
CS  
HOLD  
WRITE  
CONTROL  
AND  
TIMING  
LOGIC  
WP  
4
8
Y DECODE  
DATA REGISTER  
3834 FHD F01  
Direct Write and Block Lock Protection is a trademark of Xicor, Inc.  
©Xicor, Inc. 1994, 1995, 1996 Patents Pending  
3834-1.8 6/10/96 T3/C1/D0 NS  
Characteristics subject to change without notice  
1

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