EEWORLDEEWORLDEEWORLD

Part Number

Search

CAT1025LI-25T2

Description
Supervisory Circuit with I2C Serial 2K CMOS EEPROM. Manual Reset
File Size256KB,20 Pages
ManufacturerCatalyst
Websitehttp://www.catalyst-semiconductor.com/
Download Datasheet View All

CAT1025LI-25T2 Overview

Supervisory Circuit with I2C Serial 2K CMOS EEPROM. Manual Reset

CAT1024, CAT1025
Supervisory Circuits with I C Serial 2k-bit
CMOS EEPROM and Manual Reset
FEATURES
Precision Power Supply Voltage Monitor
— 5V, 3.3V and 3V systems
— Five threshold voltage options
Active High or Low Reset
— Valid reset guaranteed at V
CC
= 1V
400kHz I
2
C Bus
2.7V to 5.5V Operation
Low power CMOS technology
16-Byte Page Write Buffer
Built-in inadvertent write protection
— WP pin (CAT1025)
1,000,000 Program/Erase cycles
Manual Reset Input
100 year data retention
Industrial and extended temperature ranges
Green packages available with NiPdAu Lead
finished
2
DESCRIPTION
The CAT1024 and CAT1025 are complete memory
and supervisory solutions for microcontroller-based
systems. A 2k-bit serial EEPROM memory and a
system power supervisor with brown-out protection
are integrated together in low power CMOS techno–
logy. Memory interface is via a 400kHz I
2
C bus.
The CAT1025 provides a precision V
CC
sense circuit
and two open drain outputs: one (RESET) drives high
¯¯¯¯¯¯
and the other (RESET) drives low whenever V
CC
falls
below the reset threshold voltage. The CAT1025 also
has a Write Protect input (WP). Write operations are
disabled if WP is connected to a logic high.
The CAT1024 also provides a precision V
CC
sense
¯¯¯¯¯¯
circuit, but has only a RESET output and does not
have a Write Protect input.
The power supply monitor and reset circuit protect
memory and system controllers during power up/down
and against brownout conditions. Five reset threshold
voltages support 5V, 3.3V and 3V systems. If power
supply voltages are out of tolerance reset signals
become active, preventing the system microcontroller,
ASIC or peripherals from operating. Reset signals
become inactive typically 200 ms after the supply
voltage exceeds the reset threshold level. With both
active high and low reset signals, interface to
microcontrollers and other ICs is simple. In addition,
¯¯¯¯¯¯
the RESET pin or a separate input, ¯¯¯, can be used
MR
as an input for push-button manual reset capability.
The CAT1024/25 memory features a 16-byte page. In
addition, hardware data protection is provided by a
V
CC
sense circuit that prevents writes to memory
whenever V
CC
falls below the reset threshold or until
V
CC
reaches the reset threshold during power up.
Available packages include an 8-pin DIP and a
surface mount 8-pin SO, 8-pin TSSOP, 8-pin TDFN
and 8-pin MSOP packages. The TDFN package thick-
ness is 0.8mm maximum. TDFN footprint is 3x3mm.
For Ordering Information details, see page 19.
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 3008 Rev. N
Ask about 430 and USB communication
I want to ask an expert:I want to use F4270 to communicate with PC via USB. Which USB chip should I choose? Should I use a serial port to USB chip or a USB chip directly, such as FT245? Which one is e...
gezich210 Microcontroller MCU
Selected Design Calculations for Switching Power Supplies and LED Lighting
This book organically combines switching power supplies with LED driver power supplies, and comprehensively and systematically introduces the knowledge of LED driver lighting, as well as the selection...
arui1999 Download Centre
Good resources of the week: popular PCB information
PCB popular information recommendation, all of which are hot-selling products~~ [url=https://download.eeworld.com.cn/detail/Common Ze1/9393][align=left][color=rgb(0,0,0)][backcolor=rgb(237, 235, 235)]...
okhxyyo PCB Design
Xilinx FPGA application advanced general IP core detailed explanation and design development
This book is basically impossible to buy, and there is very little information about it online....
heningbo FPGA/CPLD
cefilter.exe error when compiling os
I reinstalled the system and PB, and updated to the latest patch. But when compiling the OS, when compiling to NETCF_MODULES= dotnet, a dialog box pops up saying that there is an error in cefilter.exe...
sunline Embedded System
Infrared-RS232 protocol converter circuit diagram
Infrared-RS232 protocol converter circuit diagram...
lorant Test/Measurement

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2098  1417  1016  350  1046  43  29  21  8  22 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号