Datasheet > CAT1162PI-25TE13

CAT1162PI-25TE13

更新时间： 2024-09-15 22:12:27

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
12页	72K
描述
Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog Timer

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CAT1162PI-25TE13 数据手册

CAT1161/2 (16K)

Supervisory Circuits with I²C Serial CMOS EEPROM, Precision Reset Controller and Watchdog Timer

FEATURES

■ Active high or low reset

■ Watchdog monitors SDA signal (CAT1161)

■ 400kHz I²C bus compatible

■ 2.7V to 6.0V operation

— Precision power supply voltage monitor

— 5V, 3.3V and 3V systems

— Five threshold voltage options

■ 1,000,000 Program/Erase cycles

■ Manual Reset

■ Low power CMOS technology

■ 16-Byte page write buffer

■ Built-in inadvertent write protection

— V_CClock out

■ 100 Year data retention

■ 8-pin DIP or 8-pin SOIC

— Write protect pin, WP

■ Commercial and industrial temperature ranges

DESCRIPTION

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, a

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

manual reset capability.

The CAT1161/2 is a complete memory and supervisory

solution for microcontroller-based systems. A serial

EEPROM memory (16K) with hardware memory write

protection, a system power supervisor with brown out

protectionandawatchdogtimerareintegratedtogether

inlowpowerCMOStechnology. Memoryinterfaceisvia

an I²C bus.

The 1.6-second watchdog circuit returns a system to a

known good state if a software or hardware glitch halts

or“hangs”thesystem.TheCAT1161watchdogmonitors

the SDA line, making an additional PC board trace

unnecessary. The lower cost CAT1162 does not have a

watchdog timer.

TheCAT1161/2memoryfeaturesa16-bytepage.Inaddition,

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.

Available packages include an 8-pin DIP and a surface

mount, 8-pin SO package.

The power supply monitor and reset circuit protects

memory and system controllers during power up/down

and against brownout conditions. Five reset threshold

BLOCK DIAGRAM

PIN CONFIGURATION

EXTERNAL LOAD

SENSE AMPS

SHIFT REGISTERS

OUT

ACK

WORD ADDRESS

BUFFERS

COLUMN

DECODERS

RESET

GND

RESET

CAT1161/2

SCL

GND

START/STOP

LOGIC

SDA

16K

EEPROM

XDEC

CONTROL

LOGIC

DC = Do not connect

Part Dash Minimum Maximum

Number Threshold Threshold

DATA IN STORAGE

-45

-42

4.50

4.25

4.75

4.50

HIGH VOLTAGE/

TIMING CONTROL

RESET Controller

STATE COUNTERS

SCL

-30

-28

-25

3.00

2.85

2.55

3.15

3.00

2.70

Precision

SLAVE

ADDRESS

COMPARATORS

WATCHDOG

Only for

CAT1161

Vcc Monitor

RESET RESET

Doc No. 3002, Rev. D

Characteristics subject to change without notice

12 3 4 5 6 7...12

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与CAT1162PI-25TE13相关器件

型号	品牌	获取价格	描述	数据表
CAT1162PI-28	ONSEMI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, PLASTIC, DIP-8
CAT1162PI-28	CATALYST	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDIP8, PLASTIC, DIP-8
CAT1162PI-28TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog
CAT1162PI-30	CATALYST	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDIP8, PLASTIC, DIP-8
CAT1162PI-30TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog
CAT1162PI-42	ONSEMI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, PLASTIC, DIP-8, Power Management Circuit
CAT1162PI-42TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog
CAT1162PI-45	ONSEMI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, PLASTIC, DIP-8
CAT1162PI-45TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog
CAT1162W-28	CATALYST	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, SOIC-8

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