CAT1161WI-42-GT3
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onsemi CAT1161WI-42-GT3

Manufacturer No:
CAT1161WI-42-GT3
Manufacturer:
onsemi
Package:
Tape & Reel (TR)
Description:
IC SUPERVISOR 1 CHANNEL 8SOIC
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The CAT1161WI-42-GT3 is a supervisory circuit produced by onsemi, designed to ensure correct system operation during power-up, power-down, and brownout conditions. This device integrates a precision reset controller and a watchdog timer, making it suitable for a variety of applications requiring robust system supervision.

It features a 16-byte page write buffer and built-in inadvertent write protection, including VCC lockout and a write protect pin. The device is compatible with 400 kHz I2C bus and operates within a voltage range of 2.7 V to 6.0 V, making it versatile for different system configurations.

Key Specifications

Parameter Value Units
Supply Voltage 2.7 to 6.0 V
Reset Threshold Voltage 4.25 to 4.50 V
Reset Timeout 200 ms ms
Operating Temperature -40 to 85 °C
Package Type 8-SOIC
Number of Voltages Monitored 1
Watchdog Timer Monitors SDA signal
Program/Erase Cycles 1,000,000
Data Retention 100 years
RoHS Compliance Yes

Key Features

  • 400 kHz I2C bus compatible
  • Low power CMOS technology
  • 16-byte page write buffer
  • Built-in inadvertent write protection: VCC lockout and write protect pin (WP)
  • Active high or low reset with open drain outputs
  • Precision power supply voltage monitor with five threshold voltage options
  • Manual reset capability with debounced input for pushbutton reset
  • Watchdog timer monitors SDA signal (CAT1161 only)
  • 1,000,000 program/erase cycles and 100-year data retention
  • Available in 8-pin DIP and 8-pin SOIC packages
  • Commercial and industrial temperature ranges
  • Pb-free, halogen-free, and RoHS compliant

Applications

The CAT1161WI-42-GT3 is suitable for various applications requiring robust system supervision, including:

  • Embedded systems needing precise reset and watchdog functions
  • Industrial control systems requiring reliable power monitoring
  • Automotive systems where robust supervision is critical
  • Medical devices that demand high reliability and data integrity
  • Consumer electronics requiring low power and high reliability

Q & A

  1. What is the operating voltage range of the CAT1161WI-42-GT3?

    The operating voltage range is 2.7 V to 6.0 V.

  2. What types of reset signals does the CAT1161WI-42-GT3 support?

    The device supports both active high and active low reset signals.

  3. What is the purpose of the watchdog timer in the CAT1161WI-42-GT3?

    The watchdog timer monitors the SDA signal to ensure system operation and can be used to detect and respond to system malfunctions.

  4. What is the data retention period of the CAT1161WI-42-GT3?

    The data retention period is 100 years.

  5. What are the available package types for the CAT1161WI-42-GT3?

    The device is available in 8-pin DIP and 8-pin SOIC packages.

  6. Is the CAT1161WI-42-GT3 RoHS compliant?

    Yes, the device is Pb-free, halogen-free, and RoHS compliant.

  7. What is the reset timeout period for the CAT1161WI-42-GT3?

    The reset timeout period is typically 200 ms.

  8. How many program/erase cycles can the CAT1161WI-42-GT3 handle?

    The device can handle 1,000,000 program/erase cycles.

  9. What is the operating temperature range of the CAT1161WI-42-GT3?

    The operating temperature range is -40°C to 85°C.

  10. Does the CAT1161WI-42-GT3 support manual reset?

    Yes, the device supports manual reset through the RESET or RESET pins.

Product Attributes

Type:Simple Reset/Power-On Reset
Number of Voltages Monitored:1
Voltage - Threshold:4.25V
Output:Open Drain or Open Collector
Reset:Active High/Active Low
Reset Timeout:130ms Minimum
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Surface Mount
Package / Case:8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:8-SOIC
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Similar Products

Part Number CAT1161WI-42-GT3 CAT1161WI-42-T3 CAT1162WI-42-GT3 CAT1163WI-42-GT3 CAT1161WI-45-GT3
Manufacturer onsemi onsemi onsemi onsemi onsemi
Product Status Obsolete Obsolete Obsolete Obsolete Obsolete
Type Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset
Number of Voltages Monitored 1 1 1 1 1
Voltage - Threshold 4.25V 4.25V 4.25V 4.25V 4.5V
Output Open Drain or Open Collector Open Drain or Open Collector Open Drain or Open Collector Open Drain or Open Collector Open Drain or Open Collector
Reset Active High/Active Low Active High/Active Low Active High/Active Low Active High/Active Low Active High/Active Low
Reset Timeout 130ms Minimum 130ms Minimum 130ms Minimum 130ms Minimum 130ms Minimum
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-SOIC

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