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X5043S8IZ-2.7 from INTERSIL

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X5043S8IZ-2.7

Manufacturer: INTERSIL, XICOR

CPU Supervisor with 4K SPI EEPROM

Partnumber Manufacturer Quantity Availability
X5043S8IZ-2.7,X5043S8IZ27 INTERSIL, XICOR 1051 In Stock

Description and Introduction

CPU Supervisor with 4K SPI EEPROM The part **X5043S8IZ-2.7** is manufactured by **Intersil** (now part of Renesas Electronics). Below are its specifications, descriptions, and features based on available data:

### **Specifications:**
- **Manufacturer:** Intersil  
- **Category:** Integrated Circuits (ICs)  
- **Package:** 8-SOIC (0.154", 3.90mm Width)  
- **Operating Voltage:** **2.7V** (specifically designed for low-voltage applications)  
- **Type:** **Serial EEPROM with Watchdog Timer and Reset Control**  
- **Memory Size:** **4Kbit (512 x 8)**  
- **Interface:** **SPI (Serial Peripheral Interface)**  
- **Operating Temperature Range:** **-40°C to +85°C**  
- **Write Cycle Endurance:** **1,000,000 cycles**  
- **Data Retention:** **100 years**  

### **Descriptions:**
- The **X5043S8IZ-2.7** is a **serial EEPROM** with an integrated **watchdog timer**, **voltage supervisor**, and **reset control**.  
- It is designed for **low-voltage (2.7V) operation**, making it suitable for battery-powered and power-sensitive applications.  
- The device combines **non-volatile memory**, **system monitoring**, and **reset functionality** in a single chip.  

### **Features:**
- **4Kbit (512 x 8) SPI Serial EEPROM**  
- **Built-in Watchdog Timer** (programmable timeout)  
- **Voltage Monitoring** (reset threshold at 2.7V)  
- **Low-Power CMOS Technology**  
- **SPI Interface (Mode 0 & 3 Support)**  
- **Hardware and Software Write Protection**  
- **High Reliability** (1M write cycles, 100-year data retention)  
- **Industrial Temperature Range (-40°C to +85°C)**  

This part is commonly used in **embedded systems, automotive electronics, industrial controls, and consumer electronics** where reliable non-volatile memory and system monitoring are required.  

*(Note: Always verify datasheet details for exact specifications in your application.)*

Application Scenarios & Design Considerations

CPU Supervisor with 4K SPI EEPROM

Alternative Part Number

  • CAT1161WI-27 --: CPU supervisor with EEPROM and 2.7V threshold, functionally similar to the X5043 in an 8-pin SOIC package.
  • MAX6747KA27 --: Voltage supervisor with 2.7V reset threshold and watchdog, comparable supervisory function in a small package.
  • TPS3705-27 --: Supply voltage supervisor with 2.7V threshold and watchdog timer, suitable replacement for supervisory functions.
  • M41T81SM6F --: Supervisor with integrated EEPROM and watchdog in SOIC-8, covers the reset and memory functions of the X5043 at 2.7V operation.
  • ISL88731CHRTZ --: Same vendor family after Intersil was acquired by Renesas; similar CPU supervisor/voltage monitor function with 2.7V operation, good drop-in candidate after pinout verification.
  • MAX6746KA29+T --: Voltage supervisor with watchdog and manual reset in a small package, functionally comparable to the X5043 supervisor features and available at 2.7V supply.
  • CAT823STDI-GT3 --: Low-cost voltage supervisor with reset and watchdog in SOT-23, suitable functional replacement for the X5043 monitoring role when package change is acceptable.

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