CAT1021WI-30-GT3 The ON Semiconductor CAT1021WI-30-GT3 is a supervisory circuit featuring a 2k-bit I2C EEPROM, manual reset, and watchdog timer. It operates from 2.7V to 5.5V and is available in an 8-SOIC package.
Mfr Part #:

CAT1021WI-30-GT3

Available from 4 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor CAT1021WI-30-GT3 is a supervisory circuit featuring a 2k-bit I2C EEPROM, manual reset, and watchdog timer. It operates from 2.7V to 5.5V and is available in an 8-SOIC package.
✓ Total Stock: 60,822 pcs
$ Price Range: $0.75

CAT1021WI-30-GT3 Available from 4 distributors

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CAT1021WI-30-GT3 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
EEPROM Size
Halogen Free
Industrial Grade
Lead Spacing
Lead Style
Medical Grade
Military Grade
Mounting Type
Number of Voltages Monitored
Operating Temperature
Output
Reset
Reset Timeout
Supplier Device Package
Tape & Reel
Type
Voltage

CAT1021WI-30-GT3 Description

Short technical summary and product information.

The CAT1021WI-30-GT3 from ON Semiconductor is a complete memory and supervisory solution for microcontroller-based systems. It integrates a 2k-bit I2C EEPROM with a system power supervisor offering brown-out protection. The memory interface utilizes a 400 kHz I2C bus.

 

This device provides a precision VCC sense circuit and active high or low reset outputs. It includes a 1.6-second watchdog timer to reset the system if it halts or hangs. The power supply monitor and reset circuit protect memory and system controllers during power up/down and against brownout conditions. Five reset threshold voltages support 5V, 3.3V, and 3V systems.

 

The CAT1021WI-30-GT3 is supplied in an 8-pin SOIC package, suitable for surface mount applications. It operates over an industrial temperature range of -40°C to 85°C. The device also features a manual reset input and built-in inadvertent write protection.

 

Key electrical specifications include an operating voltage range of 2.7V to 5.5V, a watchdog timer of 1.6 seconds, and a reset timeout of 130ms minimum. The EEPROM has a 16-byte page write buffer and offers 100 years of data retention.

CAT1021WI-30-GT3 Quick Information

Product Type: Supervisory Circuit
Series: CAT1021
Canonical Name: CAT1021WI-30-GT3 Supervisory Circuit with EEPROM Serial 2k-bit I2C, Manual Reset and Watchdog Timer
Subcategory: PMIC - Power Management ICs

CAT1021WI-30-GT3 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-Free

CAT1021WI-30-GT3 Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

CAT1021WI-30-GT3 Features

  • Integrated 2k-bit I2C EEPROM memory.
  • Includes watchdog timer and manual reset.
  • Supports 2.7V to 5.5V operating voltage.
  • Active high/low open drain reset outputs.
  • Available in 8-SOIC surface mount package.

CAT1021WI-30-GT3 Applications

  • Microcontroller system supervision.
  • Power-on reset and brown-out detection.
  • System monitoring and fault recovery.
  • Embedded system power management.

CAT1021WI-30-GT3 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the CAT1021WI-30-GT3?

The CAT1021WI-30-GT3 operates from 2.7V to 5.5V.

What package type is the CAT1021WI-30-GT3 supplied in?

The CAT1021WI-30-GT3 is supplied in an 8-SOIC (0.154", 3.90mm Width) package.

What is the operating temperature range for the CAT1021WI-30-GT3?

The operating temperature range for the CAT1021WI-30-GT3 is -40°C to 85°C (TA).

Does the CAT1021WI-30-GT3 have a watchdog timer?

Yes, the CAT1021WI-30-GT3 has a watchdog timer with a nominal value of 1.6 seconds.

What is the reset timeout for the CAT1021WI-30-GT3?

The reset timeout for the CAT1021WI-30-GT3 is a minimum of 130ms.

What are the reset output types for the CAT1021WI-30-GT3?

The CAT1021WI-30-GT3 features Active High/Active Low reset outputs.

What is the EEPROM size integrated into the CAT1021WI-30-GT3?

The CAT1021WI-30-GT3 integrates a 2k-bit EEPROM.

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