Overview
The CAT1161WI-30-G is a supervisory circuit designed by onsemi, tailored for microcontroller-based systems. This component integrates essential functions such as voltage monitoring, reset capabilities, and serial EEPROM memory. It is particularly useful in applications requiring robust system monitoring and protection.
The device features a compact 8-pin SOIC package, making it suitable for a variety of space-constrained designs. It operates within a voltage range of 2.7V to 6V, ensuring compatibility with multiple system configurations.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Manufacturer | Onsemi | |
| Package | SOIC N-8 | |
| Description | ROHS compliant for efficient circuit control | |
| Type | Simple Reset/Power-On Reset | |
| Number of Voltages Monitored | 1 | |
| Voltage - Threshold | 3.00 - 3.15 V | V |
| Output | Open Drain or Open Collector | |
| Reset | Active High/Active Low | |
| Reset Timeout | 130 ms Minimum | ms |
| Operating Temperature | -40°C ~ 85°C (TA) | °C |
| Mounting Type | Surface Mount | |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | |
| Supplier Device Package | 8-SOIC | |
| Base Product Number | CAT1161 | |
| Product Status | Obsolete | |
| Packaging | Tape & Reel (TR) | |
| ESD Protection | Yes |
Key Features
- Watchdog Monitor: Monitors the SDA signal to ensure system integrity.
- I2C Bus Compatibility: Supports 400 kHz I2C bus operations.
- Voltage Range: Operates from 2.7V to 6V, making it versatile for various system configurations.
- Low Power CMOS Technology: Ensures low power consumption, ideal for battery-powered devices).
- 16-Byte Page Write Buffer: Enhances memory write efficiency).
- Hardware Data Protection: Includes a write protect pin (WP) and VCC sense circuit to prevent inadvertent writes).
- Active High or Low Reset: Provides flexibility in reset signal configuration).
- Precision Power Supply Voltage Monitor: Offers precise voltage monitoring with multiple threshold options).
- Manual Reset Capability: Allows for manual reset via a debounced input for pushbutton reset).
- 100 Year Data Retention: Ensures long-term data integrity).
Applications
The CAT1161WI-30-G is suitable for a wide range of applications, including:
- Microcontroller-Based Systems: Ideal for systems requiring robust supervisory functions and memory storage).
- Industrial Automation: Used in industrial control systems where reliable voltage monitoring and reset capabilities are crucial).
- Automotive Systems: Applicable in automotive electronics for ensuring system reliability and data integrity).
- Consumer Electronics: Suitable for various consumer electronic devices that require efficient power management and data protection).
Q & A
- What is the primary function of the CAT1161WI-30-G?
The primary function is to provide supervisory circuit capabilities, including voltage monitoring and reset functions, along with integrated serial EEPROM memory.
- What is the operating voltage range of the CAT1161WI-30-G?
The device operates within a voltage range of 2.7V to 6V.
- What type of package does the CAT1161WI-30-G come in?
The device is available in an 8-pin SOIC package.
- Does the CAT1161WI-30-G support I2C bus operations?
Yes, it supports 400 kHz I2C bus operations.
- What is the reset timeout for the CAT1161WI-30-G?
The reset timeout is a minimum of 130 ms.
- Does the CAT1161WI-30-G have ESD protection?
Yes, it includes ESD protection.
- What is the operating temperature range of the CAT1161WI-30-G?
The operating temperature range is -40°C to 85°C.
- Is the CAT1161WI-30-G RoHS compliant?
Yes, the device is RoHS compliant.
- What is the data retention period for the CAT1161WI-30-G?
The data retention period is 100 years.
- Can the CAT1161WI-30-G be manually reset?
Yes, it allows for manual reset via a debounced input for pushbutton reset.
