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X5043S8I-4.5A from I

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X5043S8I-4.5A

Manufacturer: I, INTERSIL

CPU Supervisor with 4K SPI EEPROM

Partnumber Manufacturer Quantity Availability
X5043S8I-4.5A,X5043S8I45A I, INTERSIL 220 In Stock

Description and Introduction

CPU Supervisor with 4K SPI EEPROM Part X5043S8I-4.5A is a microcontroller-compatible supervisor circuit with the following specifications, descriptions, and features:  

### **Manufacturer:**  
- Intersil (now part of Renesas Electronics)  

### **Description:**  
- The X5043S8I-4.5A is a system supervisor IC that integrates a voltage monitor, watchdog timer, and serial EEPROM in a single package.  
- It is designed to enhance system reliability by monitoring power supply conditions and providing reset control.  

### **Key Features:**  
- **Voltage Monitoring:** Monitors VCC and asserts reset when voltage drops below 4.5V (adjustable versions also available).  
- **Watchdog Timer:** Programmable watchdog timer (200ms, 600ms, or 1.4s) to detect system lock-ups.  
- **Serial EEPROM:** 4Kbit (512 x 8) SPI-compatible serial EEPROM for non-volatile data storage.  
- **Reset Output:** Active-low RESET signal to ensure proper system initialization.  
- **SPI Interface:** Supports Serial Peripheral Interface (SPI) for communication with microcontrollers.  
- **Operating Voltage:** 2.7V to 5.5V.  
- **Package:** 8-lead SOIC (Small Outline Integrated Circuit).  
- **Operating Temperature Range:** -40°C to +85°C (Industrial Grade).  

### **Applications:**  
- Embedded systems  
- Industrial controls  
- Automotive electronics  
- Power management  

This part is designed for systems requiring reliable power monitoring and non-volatile memory storage.

Application Scenarios & Design Considerations

CPU Supervisor with 4K SPI EEPROM

Alternative Part Number

  • CAT1161WI-45 --: CPU supervisor with EEPROM and 4.5V reset threshold, functionally similar to the X5043 in an 8-pin SOIC package.
  • MAX6746KA45 --: Voltage supervisor with 4.5V threshold and watchdog, comparable supervisory function to the X5043.
  • DS1232LP --: Microprocessor supervisor with reset and watchdog functions, a common alternative for X5043 supervisory applications.

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