Overview
The CAT1023WI-30-GT3 is a supervisory circuit with integrated 2k-bit EEPROM, designed by onsemi. This component is part of the CAT1021, CAT1022, and CAT1023 series, which provide comprehensive memory and supervisory solutions for microcontroller-based systems. It combines a precision power supply voltage monitor, a watchdog timer, and an EEPROM memory interface via a 400 kHz I2C bus. This device is particularly useful in ensuring system reliability during power-up, power-down, and brownout conditions.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Reset Threshold Voltage | 3.00 - 3.15 | V |
| Operating Voltage Range | 2.7 - 5.5 | V |
| EEPROM Capacity | 2k-bit | |
| I2C Bus Frequency | 400 kHz | |
| Watchdog Timer | 1.6 seconds | |
| Reset Output | Active High and Low | |
| Package Type | 8-pin SOIC | |
| Temperature Range | -40°C to +85°C (Industrial), -40°C to +125°C (Extended) | °C |
| Data Retention | 100 years | |
| Program/Erase Cycles | 1,000,000 |
Key Features
- Precision Power Supply Voltage Monitor: Supports 5 V, 3.3 V, and 3 V systems with five threshold voltage options.
- Watchdog Timer: 1.6 second watchdog timer to reset the system to a known state if software or hardware glitches occur.
- Active High and Low Reset Outputs: Ensures compatibility with various microcontrollers and ICs.
- Manual Reset Input: Allows for push-button manual reset capability.
- EEPROM Memory: 2k-bit EEPROM with a 16-byte page write buffer and built-in inadvertent write protection.
- Low Power CMOS Technology: Minimizes power consumption.
- RoHS-Compliant Packages: Available in 8-pin SOIC, TSSOP, MSOP, and TDFN packages.
Applications
The CAT1023WI-30-GT3 is suitable for a wide range of applications, including:
- Microcontroller-based systems requiring robust power monitoring and memory solutions.
- Industrial control systems that need reliable operation during power fluctuations.
- Automotive systems where precise voltage monitoring and watchdog functionality are critical.
- Consumer electronics that require low power consumption and reliable data storage.
- Medical devices that demand high reliability and precision in power supply monitoring.
Q & A
- What is the primary function of the CAT1023WI-30-GT3?
The primary function is to provide a supervisory circuit with integrated 2k-bit EEPROM, ensuring system reliability during power-up, power-down, and brownout conditions.
- What are the available package types for the CAT1023WI-30-GT3?
The device is available in 8-pin SOIC, TSSOP, MSOP, and TDFN packages.
- What is the operating voltage range of the CAT1023WI-30-GT3?
The operating voltage range is from 2.7 V to 5.5 V.
- Does the CAT1023WI-30-GT3 have a watchdog timer?
Yes, it has a 1.6 second watchdog timer to reset the system if software or hardware glitches occur.
- What is the data retention period of the EEPROM in the CAT1023WI-30-GT3?
The data retention period is 100 years.
- Can the CAT1023WI-30-GT3 be manually reset?
Yes, it has a manual reset input capability.
- What is the I2C bus frequency of the CAT1023WI-30-GT3?
The I2C bus frequency is 400 kHz.
- Is the CAT1023WI-30-GT3 RoHS-compliant?
Yes, the device is RoHS-compliant and lead-free.
- What are the reset threshold voltage options for the CAT1023WI-30-GT3?
The reset threshold voltage options include 4.50-4.75 V, 4.25-4.50 V, 3.00-3.15 V, 2.85-3.00 V, and 2.55-2.70 V.
- How many program/erase cycles does the EEPROM support?
The EEPROM supports up to 1,000,000 program/erase cycles.
