Product Summary

The CAT1161JI-42 is a supervisory circuits with i2c serial cmos eeprom, precision reset controller and watchdog timer. The CAT1161JI-42 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 protection and a watchdog timer are integrated together in low power CMOS technology. Memory interface is via 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” the system. The CAT1161JI-42 watchdog monitors the SDA line, making an additional PC board trace unnecessary.

Parametrics

CAT1161JI-42 absolute maximum ratings: (1)Temperature Under Bias: -55℃ to +125℃; (2)Storage Temperature: -65℃ to +150℃; (3)Voltage on any Pin with Respect to Ground: -2.0V to +VCC +2.0V; (4)VCC with Respect to Ground: -2.0V to +7.0V; (5)Package Power Dissipation Capability (TA = 25℃): 1.0W; (6)Lead Soldering Temperature (10 secs): 300℃; (7)Output Short Circuit Current: 100 mA.

Features

CAT1161JI-42 features: (1)Watchdog monitors SDA signal; (2)400kHz I2C bus compatible; (3)2.7V to 6.0V operation; (4)Low power CMOS technology; (5)16-Byte page write buffer; (6)Built-in inadvertent write protection: VCC lock out; Write protect pin, WP; (7)Active high or low reset: Precision power supply voltage monitor; 5V, 3.3V and 3V systems; Five threshold voltage options; (8)1,000,000 Program/Erase cycles; (9)Manual Reset; (10)100 Year data retention; (11)8-pin DIP or 8-pin SOIC; (12)Commercial and industrial temperature ranges.

Diagrams

CAT1161JI-42 block dragram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
CAT1161JI-42
CAT1161JI-42

Catalyst (ON Semiconductor)

Supervisory Circuits 16K I2C Memory w/WDT

Data Sheet

Negotiable 
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
CAT10-000J4LF
CAT10-000J4LF

Bourns

Resistor Networks & Arrays 000ohm 5% Concave 4resistors

Data Sheet

0-1: $0.07
1-50: $0.06
50-100: $0.05
100-500: $0.05
CAT10-100J4
CAT10-100J4

Bourns

Resistor Networks & Arrays 10ohm 5% Concave 4resistors

Data Sheet

Negotiable 
CAT10-100J4LF
CAT10-100J4LF

Bourns

Resistor Networks & Arrays 10ohm 5% Concave 4resistors

Data Sheet

0-1: $0.07
1-50: $0.06
50-100: $0.05
100-500: $0.05
CAT10-101J4
CAT10-101J4

Bourns

Resistor Networks & Arrays 100ohm 5% Concave 4resistors

Data Sheet

Negotiable 
CAT10-101J4LF
CAT10-101J4LF

Bourns

Resistor Networks & Arrays 100ohm 5% Concave 4resistors

Data Sheet

0-1: $0.07
1-1000: $0.05
1000-2500: $0.05
2500-5000: $0.03
5000-10000: $0.02
CAT10-102J4
CAT10-102J4

Bourns

Resistor Networks & Arrays 1K 5% Concave 4resistors

Data Sheet

Negotiable