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X25021PI-2.7 PDF预览

X25021PI-2.7

更新时间: 2024-01-04 10:16:40
品牌 Logo 应用领域
XICOR 可编程只读存储器
页数 文件大小 规格书
14页 63K
描述
SPI Serial E2PROM with Block LockTM Protection

X25021PI-2.7 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:DIP包装说明:DIP, DIP8,.3
针数:8Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.32.00.51
风险等级:5.91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 Cycles
JESD-30 代码:R-PDIP-T8JESD-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
湿度敏感等级:3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:85 °C最低工作温度:-40 °C
组织:256X8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峰值回流温度(摄氏度):240
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:0.00001 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):5 V
表面贴装:NO技术:CMOS
温度等级:INDUSTRIAL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处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:7.62 mm最长写入周期时间 (tWC):10 ms
写保护:HARDWARE/SOFTWAREBase Number Matches:1

X25021PI-2.7 数据手册

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2K  
X25021  
256 x 8 Bit  
SPI Serial E2PROM with Block LockTM Protection  
FEATURES  
DESCRIPTION  
The X25021 is a CMOS 2048-bit serial E2PROM, inter-  
nallyorganizedas256x8. TheX25021featuresaSerial  
Peripheral Interface (SPI) and software protocol allow-  
ing operation on a simple three-wire bus. The bus  
signalsareaclockinput(SCK)plusseparatedatain(SI)  
and data out (SO) lines. Access to the device is con-  
trolled through a chip select (CS) input, allowing any  
number of devices to share the same bus.  
1MHz Clock Rate  
SPI Modes (0,1 & 1,0)  
256 X 8 Bits  
—4 Byte Page Mode  
Low Power CMOS  
—10µA Standby Current  
—3mA Active 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 X25021 also features two additional inputs that  
provide the end user with added flexibility. By asserting  
the HOLD input, the X25021 will ignore transitions on its  
inputs, thus allowing the host to service higher priority  
interrupts.TheWPinputcanbeusedasahardwireinput  
totheX25021disablingallwriteattempts,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  
The X25021 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.  
—Endurance: 100,000 cycles per byte  
—Data Retention: 100 Years  
—ESD protection: 2000V on all pins  
8-Lead PDlP Package  
8-Lead SOIC Package  
FUNCTIONAL DIAGRAM  
WRITE  
PROTECT  
LOGIC  
STATUS  
REGISTER  
X DECODE  
LOGIC  
256 BYTE  
ARRAY  
16  
16  
32  
16 X 32  
16 X 32  
32 X 32  
SO  
SI  
COMMAND  
DECODE  
AND  
CONTROL  
LOGIC  
SCK  
CS  
HOLD  
WRITE  
CONTROL  
AND  
TIMING  
LOGIC  
WP  
4
8
Y DECODE  
DATA REGISTER  
6615 FHD F01  
Characteristics subject to change without notice  
Direct Write™ and Block Lock™ Protection is a trademark of Xicor, Inc.  
©Xicor, Inc. 1995, 1996 Patents Pending  
6615-1.5 6/10/96 T3/C1/D0 NS  
1

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