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X4043M8I-2.7 from XICOR

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X4043M8I-2.7

Manufacturer: XICOR, INTERSIL

CPU Supervisor with 4kbit EEPROM

Partnumber Manufacturer Quantity Availability
X4043M8I-2.7,X4043M8I27 XICOR, INTERSIL 2000 In Stock

Description and Introduction

CPU Supervisor with 4kbit EEPROM The part **X4043M8I-2.7** is manufactured by **Intersil** (now part of Renesas Electronics). Below are its specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Manufacturer:** Intersil (Renesas Electronics)  
- **Part Number:** X4043M8I-2.7  
- **Package:** 8-Lead SOIC (M8)  
- **Supply Voltage:** **2.7V** (operating range: 2.7V to 5.5V)  
- **Interface:** I²C (Two-Wire Serial Interface)  
- **Memory Type:** EEPROM (Electrically Erasable Programmable Read-Only Memory)  
- **Memory Size:** **4Kbit (512 x 8)**  
- **Operating Temperature Range:** **-40°C to +85°C** (Industrial Grade)  
- **Write Cycle Endurance:** **1,000,000 cycles**  
- **Data Retention:** **100 years**  
- **Clock Frequency:** **400kHz (max)**  

### **Descriptions:**  
The **X4043M8I-2.7** is a **4Kbit Serial EEPROM** with an integrated **I²C interface**. It is designed for low-voltage applications and provides reliable non-volatile memory storage. The device supports byte and page write operations and features hardware write protection.  

### **Features:**  
- **Low-Voltage Operation (2.7V to 5.5V)**  
- **I²C-Compatible Interface (Supports 400kHz Clock)**  
- **Built-in Write Protection (WP Pin for Hardware Protection)**  
- **Self-Timed Write Cycle (5ms max)**  
- **Page Write Mode (Up to 16 Bytes per Write)**  
- **Industrial Temperature Range (-40°C to +85°C)**  
- **High Reliability (1M Write Cycles, 100-Year Data Retention)**  
- **Small 8-Lead SOIC Package**  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

CPU Supervisor with 4kbit EEPROM

Alternative Part Number

  • MAX6374KA+T --: Voltage supervisor with programmable reset threshold and manual reset, functionally similar to the X4043 supervisor function in a small package.
  • ADM809LARTZ-REEL --: Low-cost microprocessor reset supervisor with active-low reset output, suitable replacement for basic supply monitoring and reset generation.
  • MCP130-270HI/TO --: Voltage supervisor with 2.7V trip point and active-low reset, matching the 2.7V threshold variant of the original device.
  • MAX6743XKSD3+ --: Supervisory circuit with voltage monitoring and reset output, functionally similar to the X4043 in supply monitoring applications.
  • MCP1316MT-29BE/OT --: Voltage supervisor with reset output in a small package, offering comparable monitoring behavior for 2.7V-class systems.

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