Datasheet > CAT1025PE-45

CAT1025PE-45

更新时间： 2025-08-12 09:22:15

品牌	Logo	应用领域
CATALYST		光电二极管
页数	文件大小	规格书
20页	140K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, PLASTIC, DIP-8

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CAT1025PE-45 数据手册

Preliminary Information

CAT1024, CAT1025

Supervisory Circuits with I²C Serial 2k-bit CMOS EEPROM and Manual Reset

FEATURES

■ 16-Byte page write buffer

■ Precision power supply voltage monitor

■ Built-in inadvertent write protection

— 5V, 3.3V and 3V systems

— WP pin (CAT1025)

— Five threshold voltage options

■ 1,000,000 Program/Erase cycles

■ Active high or low reset

■ Manual reset input

— Valid reset guaranteed at V_CC= 1V

■ 100 year data retention

■ 400kHz I²C bus

■ 8-pin DIP, SOIC, TSSOP, MSOP &

■ 3.0V to 5.5V operation

TDFN (3x3mm foot print) packages

■ Low power CMOS technology

■ Industrial and extended 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, the

RESET pin or a separate input, MR, can be used as an input

for push-button manual reset capability.

The CAT1024 and CAT1025 are complete memory and

supervisorysolutionsformicrocontroller-basedsystems.

A 2k-bit serial EEPROM memory and a system power

supervisor with brown-out protection are integrated

together in low power CMOS technology. Memory

interface is via a 400kHz I²C bus.

The CAT1025 provides a precision V_CCsense circuit

and two open drain outputs: one (RESET) drives high

and the other (RESET) drives low whenever V_CCfalls

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 CAT1024/25 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_CCreaches the reset

threshold during power up.

The CAT1024 also provides a precision V_CCsense

circuit, but has only a RESET output and does not have

a Write Protect input.

Available packages include an 8-pin DIP, 8-pin SOIC, 8-pin

TSSOP, 8-pin TDFN and 8-pin MSOP. The TDFN package

thickness is 0.8mm maximum. TDFN footprint is 3x3mm.

The power supply monitor and reset circuit protect

memory and system controllers during power up/down

and against brownout conditions. Five reset threshold

PIN CONFIGURATION

DIP Package (P, L)

(Bottom View)

TDFN Package: 3mm x 3mm

0.8mm maximum height - (RD4, ZD4)

SOIC Package (J, W)

TSSOP Package (U, Y)

MSOP Package (R, Z)

RESET

RESET 2

CAT1024

SCL

SDA

SCL

SDA

RESET 2

SCL

SDA

RESET

CAT1025

SCL

SDA

RESET

Doc No. 3008, Rev. M

Characteristics subject to change without notice

12 3 4 5 6 7...20

中文翻译

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与CAT1025PE-45相关器件

型号	品牌	获取价格	描述	数据表
CAT1025PE-45TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
CAT1025PI-25	CATALYST	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, PLASTIC, DIP-8
CAT1025PI-25TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
CAT1025PI-28TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
CAT1025PI-30	CATALYST	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDIP8, PLASTIC, DIP-8
CAT1025PI-30TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
CAT1025PI-42TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
CAT1025PI-45TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
CAT1025RA-25	CATALYST	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO8, MSOP-8
CAT1025RA-25TE13	ONSEMI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MSOP-8

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