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X25045PI

更新时间: 2024-11-13 22:41:23
品牌 Logo 应用领域
XICOR 内存集成电路光电二极管监控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
15页 95K
描述
Programmable Watchdog Supervisory E2PROM

X25045PI 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:5.69其他特性:PROGRAMMABLE WATCHDOG TIMER; ACTIVE LOW RESET
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: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:85 °C最低工作温度:-40 °C
组织:512X8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
峰值回流温度(摄氏度):NOT SPECIFIED电源: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:0.00005 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):4.5 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/SOFTWARE
Base Number Matches:1

X25045PI 数据手册

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APPLICATION NOTES  
A V A I L A B L E  
AN11 • AN21  
4K  
X25043/45  
512 x 8 Bit  
Programmable Watchdog Supervisory E2PROM  
FEATURES  
DESCRIPTION  
The X25043/45 combines three popular functions,  
Watchdog Timer, Voltage Supervision, and E2PROM in  
a single package. This combination lowers the system  
cost and reduces the board space requirements.  
Programmable Watchdog Timer  
Low VCC Detection  
Reset Signal Valid to VCC = 1V  
1MHz Clock Rate  
512 X 8 Bits Serial E2PROM  
—4 Byte Page Mode  
Low Power CMOS  
—50µA Standby Current  
—3mA Active Current  
The Watchdog Timer provides an independent protec-  
tionsystemformicrocontrollers.Duringasystemfailure,  
the X25043/45 watchdog will respond with a RESET/  
RESET signal after a selectable time-out interval. The  
user selects the interval from three preset values. Once  
selected, the interval does not change, even after cy-  
cling the power.  
2.7V To 5.5V Power Supply  
Block LockTM  
—Protect 1/4, 1/2 or all of E2PROM Array  
Built-in Inadvertent Write Protection  
—Power-Up/Power-Down protection circuitry  
—Write Latch  
The system is protected from low voltage conditions by  
the X25043/45 low VCC detection circuits. When VCC  
drops below the minimum VCC trip point, the system is  
reset. Reset is asserted until VCC returns and stabilizes.  
—Write Protect Pin  
High Reliability  
ThememoryportionoftheX25043/45 isaCMOS4096-  
bit serial E2PROM, internally organized as 512 X 8. The  
X25043/45 features a Serial Peripheral Interface (SPI)  
and software protocol allowing operation on a simple  
three-wire bus.  
—Endurance: 100,000 cycles per byte  
—Data Retention: 100 Years  
—ESD protection: 2000V on all pins  
Available Packages  
—8-Lead PDlP  
—8-Lead SOIC  
—14-Lead TSSOP  
X25043 = Active LOW RESET  
X25045 = Active HIGH RESET  
TheX25043/45utilizesXicor’sproprietaryDirectWrite™  
cell, providing a minimum endurance of 100,000 cycles  
per byte and a minimum data retention of 100 years.  
DIE PHOTOGRAPH  
PROGRAMMABLE  
VOLTAGE  
SENSOR  
RESET  
CONTROL  
LOGIC  
W
A
T
T
I
M
E
R
C
H
D
O
G
SERIAL  
INTERFACE  
LOGIC  
2
2
4K BITS E PROM  
HIGH VOLTAGE GENERATOR  
HIGH VOLTAGE GENERATOR  
AND  
AND  
CONTROL  
CONTROL  
3844 ILL F01  
Characteristics subject to change without notice  
Direct Write™ is a trademark of Xicor, Inc.  
©Xicor, Inc. 1994, 1995, 1996 Patents Pending  
3844-6.5 5/9/96 T4/C2/D2 NS  
1

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