| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
9,000 pcs
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9000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| EEPROM Size | |
| Halogen Free | |
| Mounting Type | |
| Number of Voltages Monitored | |
| Operating Temperature | |
| Output | |
| Reset | |
| Reset Timeout | |
| Supplier Device Package | |
| Supplier Package | |
| Tape & Reel | |
| Type | |
| Voltage | |
| Watchdog Timer |
The CAT1021WI-45-GT3 from On Semiconductor is a supervisory circuit designed for microcontroller-based systems. It features a precision voltage monitor with a 4.5V threshold, ensuring system stability during power fluctuations. The device includes a watchdog timer with a 1.6-second interval to reset the system if it halts or hangs, and a 130ms minimum reset timeout.
Integrated within this component is a 2k-bit I2C serial EEPROM memory with a 16-byte page write buffer. Hardware data protection prevents writes to memory when VCC falls below the reset threshold. The CAT1021WI-45-GT3 supports active high or active low reset outputs and includes a manual reset input.
This supervisory circuit operates from 2.7V to 5.5V and is manufactured using low-power CMOS technology. It is available in an 8-pin SOIC package, suitable for surface mount applications. The operating temperature range is -40°C to 85°C.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The CAT1021WI-45-GT3 operates from 2.7V to 5.5V.
The reset threshold voltage for the CAT1021WI-45-GT3 is 4.5V.
The reset timeout is a minimum of 130ms.
Yes, it includes a watchdog timer with a 1.6-second interval.
It features a 2k-bit I2C serial EEPROM memory.
The operating temperature range is -40°C to 85°C.
It is supplied in an 8-SOIC package.