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X25040 PDF预览

X25040

更新时间: 2024-02-04 17:20:08
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

X25040 技术参数

生命周期:Obsolete包装说明:TSSOP-8
Reach Compliance Code:unknown风险等级:5.83
其他特性:3 WIRE SERIAL INTERFACE; SPI BUS INTERFACE最大时钟频率 (fCLK):1 MHz
JESD-30 代码:R-PDSO-G8长度:4.4 mm
内存密度:4096 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:512 words
字数代码:512工作模式:SYNCHRONOUS
最高工作温度:125 °C最低工作温度:-55 °C
组织:512X8输出特性:3-STATE
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
并行/串行:SERIAL认证状态:Not Qualified
座面最大高度:1.2 mm串行总线类型:SPI
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
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL宽度:3 mm
最长写入周期时间 (tWC):10 msBase Number Matches:1

X25040 数据手册

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APPLICATION NOTES  
A V A I L A B L E  
AN9 • AN18 • AN31 • AN37 • AN40  
4K  
X25040  
512 x 8 Bit  
SPI Serial E2PROM with Block LockTM Protection  
FEATURES  
DESCRIPTION  
The X25040 is a CMOS 4096-bit serial E2PROM, inter-  
nallyorganizedas512x8. TheX25040featuresaSerial  
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 (0,0 & 1,1)  
512 X 8 Bits  
—4 Byte Page Mode  
Low Power CMOS  
—150µA 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 X25040 also features two additional inputs that  
provide the end user with added flexibility. By asserting  
the HOLD input, the X25040 will ignore transitions on its  
inputs, thus allowing the host to service higher priority  
interrupts.TheWPinputcanbeusedasahardwireinput  
totheX25040disablingallwriteattempts,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 X25040 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  
STATUS  
PROTECT  
REGISTER  
LOGIC  
X DECODE  
LOGIC  
512 BYTE  
ARRAY  
32  
32  
64  
32 X 32  
32 X 32  
64 X 32  
SO  
COMMAND  
DECODE  
AND  
CONTROL  
LOGIC  
SI  
SCK  
CS  
HOLD  
WRITE  
CONTROL  
AND  
TIMING  
LOGIC  
WP  
4
8
Y DECODE  
DATA REGISTER  
6451 FHD F01  
Direct Write™ and Block Lock™ Protection is a trademark of Xicor, Inc.  
©Xicor, Inc. 1994, 1995, 1996 Patents Pending  
6451-3.6 6/10/96 T5/C1/D0 NS  
Characteristics subject to change without notice  
1

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