CAT1025WI-45-G

更新时间： 2024-11-14 13:06:35

品牌	Logo	应用领域
CATALYST		电源电路电源管理电路光电二极管监控输入元件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
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20页	266K
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中文翻译

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数据手册

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CAT1025WI-45-G 数据手册

CAT1024, CAT1025

Supervisory Circuits with I²C Serial 2k-bit

CMOS EEPROM and Manual Reset

FEATURES

DESCRIPTION

ꢀ Precision Power Supply Voltage Monitor

The CAT1024 and CAT1025 are complete memory

— 5V, 3.3V and 3V systems

— Five threshold voltage options

ꢀ Active High or Low Reset

— Valid reset guaranteed at V_CC= 1V

ꢀ 400kHz I²C Bus

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 I²C bus.

The CAT1025 provides a precision V_CCsense circuit

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

ꢀ 2.7V to 5.5V Operation

ꢀ Low power CMOS technology

ꢀ 16-Byte Page Write Buffer

ꢀ Built-in inadvertent write protection

— WP pin (CAT1025)

¯¯¯¯¯¯

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 also provides a precision V_CCsense

ꢀ 1,000,000 Program/Erase cycles

ꢀ Manual Reset Input

¯¯¯¯¯¯

circuit, but has only a RESET output and does not

have a Write Protect input.

ꢀ 100 year data retention

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,

ꢀ Industrial and extended temperature ranges

ꢀ Green packages available with NiPdAu Lead

finished

¯¯¯¯¯¯

¯¯¯

the RESET pin or a separate input, MR, can be used

as an input for push-button manual reset capability.

For Ordering Information details, see page 19.

The CAT1024/25 memory features a 16-byte page. In

addition, hardware data protection is provided 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, 8-pin TSSOP, 8-pin TDFN

and 8-pin MSOP packages. The TDFN package thick-

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

Characteristics subject to change without notice

Doc. No. 3008 Rev. N

12 3 4 5 6 7...20

中文翻译

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与CAT1025WI-45-G相关器件

型号	品牌	获取价格	描述	数据表
CAT1025WI-45-GT2	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
CAT1025WI-45-GT3	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
CAT1025WI-45-GT3	ONSEMI	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
CAT1025WI-45T2	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
CAT1025WI-45T3	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
CAT1025WI-45TE13	CATALYST	获取价格	Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
CAT1025YA-25TE13	ONSEMI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, LEAD AND HALOGEN FREE, TSSOP-8, Power Manage
CAT1025YA-28	CATALYST	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO8, LEAD AND HALOGEN FREE, TSSOP-
CAT1025YA-42	CATALYST	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, LEAD AND HALOGEN FREE, TSSOP-8
CAT1025YA-45TE13	CATALYST	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, LEAD AND HALOGEN FREE, TSSOP-8

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