Datasheet > CAT1162WI-28T2

CAT1162WI-28T2

更新时间： 2024-11-23 03:54:03

品牌	Logo	应用领域
CATALYST		监控控制器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
14页	164K
描述
Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog Timer

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CAT1162WI-28T2 数据手册

CAT1161, CAT1162

Supervisory Circuits with I²C Serial CMOS EEPROM,

Precision Reset Controller and Watchdog Timer (16K)

write protection, a system power supervisor with

FEATURES

brown out protection and a watchdog timer are

integrated together in low power CMOS technology.

Memory interface is via an I²C bus.

Watchdog monitors SDA signal (CAT1161)

400kHz I²C bus compatible

2.7V to 6.0V operation

The 1.6-second watchdog circuit returns a system to a

known good state if a software or hardware glitch

halts or “hangs” the system. The CAT1161 watchdog

monitors the SDA line, making an additional PC board

trace unnecessary. The lower cost CAT1162 does not

have a watchdog timer.

Low power CMOS technology

16-Byte page write buffer

Built-in inadvertent write protection

—

_CClock out

Write protect pin, WP

The power supply monitor and reset circuit protects

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 200ms 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, a

reset pin can be used as a debounced input for push-

button manual reset capability.

Active high or low reset

—

Precision power supply voltage monitor

5V, 3.3V and 3V systems

Five threshold voltage options

1,000,000 Program/Erase cycles

Manual Reset

100 Year data retention

8-pin DIP or 8-pin SOIC

Commercial and industrial temperature ranges

The CAT1161/2 memory features a 16-byte page. In

addition, hardware data protection is provided by a

write protect pin WP and by a V_CCsense circuit that

prevents writes to memory whenever V_CCfalls below

the reset threshold or until V_CCreaches the reset

threshold during power up.

For Ordering Information details, see page 13.

DESCRIPTION

The CAT1161/2 is a complete memory and supervi-

sory solution for microcontroller-based systems. A se-

rial EEPROM memory (16K) with hardware memory

Available packages include an 8-pin DIP and a

surface mount, 8-pin SO package.

PIN CONFIGURATION

PIN FUNCTIONS

PDIP 8 Lead

SOIC 8 Lead

Pin Name Function

Do not Connect

Active Low Reset I/O

Write Protect

V_CC

¯¯¯¯¯¯

RESET

¯¯¯¯¯¯

RESET

SCL

CAT1161

CAT1162

GND

SDA

Ground

GND

SDA

Serial Data/Address

Clock Input

SCL

RESET

V_CC

Active High Reset I/O

Power Supply

Characteristics subject to change without notice

Doc. No. 3002 Rev. F

12 3 4 5 6 7...14

中文翻译

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与CAT1162WI-28T2相关器件

型号	品牌	获取价格	描述	数据表
CAT1162WI-28T3	CATALYST	获取价格	Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog
CAT1162WI-28-T3	CATALYST	获取价格	Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog
CAT1162WI-28TE13	CATALYST	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, SOIC-8
CAT1162WI-30	CATALYST	获取价格	Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog
CAT1162WI-30	ONSEMI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, SOIC-8
CAT1162WI-30-G	CATALYST	获取价格	EEPROM, 2KX8, Serial, CMOS, PDSO8,
CAT1162WI-30-GT2	CATALYST	获取价格	Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog
CAT1162WI30GT3	ONSEMI	获取价格	Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller
CAT1162WI-30-GT3	CATALYST	获取价格	Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog
CAT1162WI-30-GT3	ONSEMI	获取价格	Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog

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