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X46402V8E-3.1A

更新时间： 2024-02-21 13:24:00
品牌 Logo 应用领域
XICOR 电源电路电源管理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
页数 文件大小 规格书
23页 106K
描述
Dual Voltage CPU Supervisor with 64K Password Protected EEPROM

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X46402V8E-3.1A 技术参数

是否Rohs认证：不符合生命周期：Obsolete
包装说明：PLASTIC, TSSOP-8Reach Compliance Code：unknown
风险等级：5.8Is Samacsys：N
可调阈值：YES模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码：R-PDSO-G8JESD-609代码：e0
长度：4.4 mm信道数量：2
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-20 °C
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
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：1.2 mm最大供电电压 (Vsup)：3.7 V
最小供电电压 (Vsup)：2.5 V标称供电电压 (Vsup)：3 V
表面贴装：YES温度等级：OTHER
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
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

X46402V8E-3.1A 数据手册

 浏览型号X46402V8E-3.1A的Datasheet PDF文件第2页浏览型号X46402V8E-3.1A的Datasheet PDF文件第3页浏览型号X46402V8E-3.1A的Datasheet PDF文件第4页浏览型号X46402V8E-3.1A的Datasheet PDF文件第5页浏览型号X46402V8E-3.1A的Datasheet PDF文件第6页浏览型号X46402V8E-3.1A的Datasheet PDF文件第7页 
Preliminary Information  
64K  
X46402  
Dual Voltage CPU Supervisor with 64K Password Protected EEPROM  
FEATURES  
DESCRIPTION  
• Dual Voltage Detection and Reset Assertion  
—Low Vcc Monitor  
—Low V2MON Monitor  
—Low Vcc Block of EEPROM Writes  
—RESET Signal Valid down to Vcc=1V  
• Selectable Watchdog Timer  
—150ms, 450ms, 1s, 5s, 10s, 20s, 1min, OFF  
• Volatile Flag shows Watchdog/Low Voltage Reset  
• 64kbit 2-wire Serial EEPROM  
The X46402 combines several functions into one device.  
The first is a dual voltage CPU supervisor plus 64Kbit  
serial EEPROM memory with password protected write  
and read operations. The size of the password protected  
area is selectable by 3 control bits. A Write Protect (WP)  
pin in conjunction with a WPEN bit provides hardware  
OTP control of the configuration of the array. Password  
protected areas require 64 bit read or write passwords  
prior to access. The eighth illegal password entry  
(regardless of the number of correct entries) sets an OTP  
tamper bit.This bit is one of the 32 bits in the Device ID.  
—1MHz Serial Interface speed  
—64-Byte Page Write Mode  
• Two 64-Byte OTP memory blocks  
—Requires 64-bit OTP password to write  
• Adjustable size Password Protected Array  
—64 Bit Read and Write Array Passwords  
—Non-password protected array area  
• 8 count tamper counter for invalid passwords  
• Operates at 2.5-3.7V  
A secondary voltage monitor circuit activates a V2FAIL  
pin when the secondary supply voltage drops below a  
V2trip voltage. This circuit is primarily intended to detect  
the immediate loss of the battery supply.  
A low Vcc voltage detect circuit activates a RESET pin  
when Vcc drops below a V  
voltage. This signal also  
TRIP  
• 8L TSSOP package  
blocks read or write operations.  
A watchdog timer with the time period controlled by three  
bits provides several possible time out periods from  
150ms to 1 minute.  
Functional Diagram  
WATCHDOG  
Write Control  
WP  
TIMER RESET  
Password Logic  
HV Generation  
Timing and Control  
RESET &  
WATCHDOG  
RESET  
TIMEBASE  
Write Password Area  
(Bytes)  
Command  
Decode  
and  
Control  
Logic  
(64, 128, 256, 512,  
POWER ON AND  
LOW VOLTAGE  
RESET  
2K, 4K, All, None)  
SCL  
SDA  
No Password Area  
GENERATION  
Control  
OTP array 1  
OTP array 2  
Passwords  
V2FAIL  
+
V2MON  
-
Y Decoder  
V2TRIP  
Data Register  
+
Vcc  
(Vcc) Control Signal  
-
VTRIP  
Xicor, Inc. 1994, 1995, 1996, 1998 Patents Pending  
9900-3003 5 1/11/00 CM  
Characteristics subject to change without notice  
1
1234567...23

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