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1027RD4E-25TE13 PDF预览

1027RD4E-25TE13

更新时间： 2024-11-11 18:52:51
品牌 Logo 应用领域
CATALYST /
页数 文件大小 规格书
17页 108K
描述
Power Supply Management Circuit, Adjustable, 2 Channel, CMOS, 3 X 3 MM, 0.80 MM HEIGHT, MSOP FOOTPRINT, TDFN-8

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1027RD4E-25TE13 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：DFN包装说明：HVSON,
针数：8Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.77可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：S-XDSO-N8
JESD-609代码：e0长度：3 mm
信道数量：2功能数量：1
端子数量：8最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：UNSPECIFIED
封装代码：HVSON封装形状：SQUARE
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：0.8 mm
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)：3 V表面贴装：YES
技术：CMOS温度等级：AUTOMOTIVE
端子面层：TIN LEAD端子形式：NO LEAD
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

1027RD4E-25TE13 数据手册

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Preliminary Information  
CAT1026, CAT1027  
Dual Voltage Supervisory Circuits with I2C Serial 2K CMOS EEPROM  
FEATURES  
■ Precision VCC power supply voltage monitor  
— 5V, 3.3V and 3V systems  
■ 16-Byte page write buffer  
■ Built-in inadvertent write protection  
■ 1,000,000 Program/Erase cycles  
■ Manual reset capability  
— Five threshold voltage options  
■ Additional voltage monitoring  
— Externally adjustable down to 1.25V  
■ 100 year data retention  
■ Watchdog timer (CAT1027 only)  
■ Active high or low reset  
— Valid reset guaranteed to VCC=1V  
■ 400kHz I2C bus  
■ 8-pin DIP, SOIC, TSSOP, TDFN (MSOP  
(3x4.9mm) & 3x3mm foot prints) or MSOP  
packages  
— TDFN max height is 0.8mm  
■ Automotive, extended automotive and  
■ 2.7V to 5.5V operation  
industrial temperature ranges  
■ Low power CMOS technology  
DESCRIPTION  
The CAT1026 and CAT1027 are complete memory and used as an input for push-button manual reset capability.  
supervisorysolutionsformicrocontroller-basedsystems.  
The CAT1026 and CAT1027 provide an auxiliary voltage  
A 2kbit serial EEPROM memory and a system power  
sensor input, VSENSE, which is used to monitor a second  
supervisor with brown-out protection are integrated  
system supply. The auxiliary high impedance comparator  
together in low power CMOS technology. Memory  
drives the open drain output, VLOW, whenever the sense  
interface is via a 400kHz I2C bus.  
voltage is below 1.25V threshold.  
The CAT1026 and CAT1027 provide a precision VCC  
TheCAT1027isdesignedwitha1.6secondwatchdogtimer  
sense circuit with five reset threshold voltage options  
circuit that resets a system to a known state if software or a  
that support 5V, 3.3V and 3V systems. The power  
hardware glitch halts or “hangs” the system. The CAT1027  
supply monitor and reset circuit protects memory and  
features a watchdog timer interrupt input, WDI.  
systems controllers during power up/down and against  
brownout conditions. If power supply voltages are out of  
EEPROM memory features a 16-byte page. In addition,  
tolerance reset signals become active preventing the  
hardware data protection is provided by a VCC sense circuit  
system microcontroller, ASIC, or peripherals from  
that prevents writes to memory whenever VCC falls below  
the reset threshold or until VCC reaches the reset threshold  
operating.  
during power up.  
The CAT1026 features two open drain reset outputs:  
one (RESET) drives high and the other (RESET) drives  
low whenever VCC falls below the threshold. Reset  
Available packages include 8-pin DIP and surface mount,  
8-pin SO, 8-pin TSSOP, 8-pin TDFN and 8-pin MSOP  
outputs become inactive typically 200 ms after the  
packages. The TDFN package thickness is 0.8mm  
supply voltage exceeds the reset threshold value. With  
maximum. TDFN footprint options are 3x3mm or 3x4.9mm  
both active high and low reset signals, interface to  
(MSOP pad layout).  
microcontrollers and other ICs is simple. CAT1027 has  
onlyaRESET output. Inaddition, the RESET pincanbe  
© 2003 by Catalyst Semiconductor, Inc.  
Doc No. 3010, Rev. E  
Characteristics subject to change without notice  
1234567...17

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