Datasheet > CAT1163LI-25T2

CAT1163LI-25T2

更新时间： 2022-04-23 23:00:11

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	151K
描述
Supervisory Circuits with I2C Serial Serial CMOS EEPROM, Precision Reset Controller and Watchdog Timer

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CAT1163LI-25T2 数据手册

CAT1163

up/down conditions. It is configured with open drain

RESET outputs. During power-up, the RESET outputs

remain active until V_CCreaches the V_THthreshold and

will continue driving the outputs for approximately

200ms (t_PURST) after reaching V_TH. After the t_PURST

timeout interval, the device will cease to drive the

reset outputs. At this point the reset outputs will be

pulled up or down by their respective pull up/down

resistors. During power-down, the RESET outputs will

PIN DESCRIPTION

WDI: WATCHDOG INPUT

If there is no transition on the WDI for more than 1.6

seconds, the watchdog timer times out.

WP: WRITE PROTECT

If the pin is tied to V_CCthe entire memory array

becomes Write Protected (READ only). When the pin

is tied to GND or left floating normal read/write

operations are allowed to the device.

¯¯¯¯¯¯

be active when V_CCfalls below V_TH. The RESET

outputs will be valid so long as V_CCis >1.0V (V_RVALID).

The RESET pins are I/Os; therefore, the CAT1163

can act as a signal conditioning circuit for an

externally applied manual reset. The inputs are edge

triggered; that is, the RESET input in the CAT1163 will

initiate a reset timeout after detecting a low to high

¯¯¯¯¯¯

RESET/RESET: RESET I/O

These are open drain pins and can be used as reset

trigger inputs. By forcing a reset condition on the pins

the device will initiate and maintain a reset condition.

The RESET pin must be connected through a pull-

¯¯¯¯¯¯

transition and the RESET input will initiate a reset

¯¯¯¯¯¯

down resistor, and the RESET pin must be connected

timeout after detecting a high to low transition.

through a pull-up resistor.

Watchdog Timer

SDA: SERIAL DATA ADDRESS

The Watchdog Timer provides an independent

protection for microcontrollers. During a system

failure, the CAT1163 will respond with a reset signal

after a time-out interval of 1.6 seconds for a lack of

activity. The CAT1163 is designed with the Watchdog

Timer feature on the SDA input. If the microcontroller

does not toggle the SDA input pin within 1.6 seconds,

the Watchdog Timer times out. This will generate a

reset condition on reset outputs. The Watchdog Timer

is cleared by any transition on WDI.

The bidirectional serial data/address pin is used to

transfer all data into and out of the device. The SDA

pin is an open drain output and can be wire-ORed

with other open drain or open collector outputs.

If there is no transition on the SDA for more than 1.6

seconds, the watchdog timer times out.

SCL: SERIAL CLOCK

Serial clock input.

As long as the reset signal is asserted, the Watchdog

Timer will not count and will stay cleared.

DEVICE OPERATION

Reset Controller Description

The CAT1163 precision RESET controller ensures

correct system operation during brownout and power

Figure 1. RESET Output Timing

t_GLITCH

V_TH

RVALID

V_CC

t_RPD

t_PURST

RESET

t_RPD

RESET

Characteristics subject to change without notice

Doc. No. 3003 Rev. E

1 2 3 456 7 8...14

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与CAT1163LI-25T2相关器件

型号	品牌	描述	获取价格	数据表
CAT1163LI-25T3	CATALYST	Supervisory Circuits with I2C Serial Serial CMOS EEPROM, Precision Reset Controller and Wa	获取价格
CAT1163LI28	ONSEMI	SPECIALTY MICROPROCESSOR CIRCUIT, PDIP8, 0.300 INCH, ROHS COMPLIANT, PLASTIC, MS-001, DIP-	获取价格
CAT1163LI-28	CATALYST	Supervisory Circuits with I2C Serial Serial CMOS EEPROM, Precision Reset Controller and Wa	获取价格
CAT1163LI-28	ONSEMI	IC SPECIALTY MICROPROCESSOR CIRCUIT, PDIP8, 0.300 INCH, ROHS COMPLIANT, PLASTIC, MS-001, D	获取价格
CAT1163LI-28-G	CATALYST	Supervisory Circuits with I2C Serial Serial CMOS EEPROM, Precision Reset Controller and Wa	获取价格
CAT1163LI-28-G	ONSEMI	Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog	获取价格

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