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X25020S from XICOR

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X25020S

Manufacturer: XICOR, ATMEL

SPI Serial E2PROM with Block LockTM Protection

Partnumber Manufacturer Quantity Availability
X25020S XICOR, ATMEL 4711 In Stock

Description and Introduction

SPI Serial E2PROM with Block LockTM Protection Part X25020S is manufactured by ATMEL (now part of Microchip Technology). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Type:** Serial EEPROM with SPI Interface  
- **Memory Size:** 2 Kbit (256 x 8 bits)  
- **Interface:** SPI (Serial Peripheral Interface)  
- **Operating Voltage:** 2.7V to 5.5V  
- **Write Cycle Time:** 5 ms (typical)  
- **Endurance:** 1,000,000 write cycles  
- **Data Retention:** 100 years  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** 8-lead SOIC, 8-lead PDIP  

### **Descriptions:**  
- The X25020S is a CMOS serial EEPROM with a built-in watchdog timer and voltage supervisor.  
- It integrates a 2 Kbit non-volatile memory array with SPI-compatible communication.  
- The device includes hardware and software write protection features.  

### **Features:**  
- **SPI Interface:** Supports modes 0 and 3.  
- **Watchdog Timer:** Programmable timeout period (200 ms, 600 ms, or 1.4 s).  
- **Voltage Supervisor:** Monitors VCC and resets the system during power failures.  
- **Block Lock Protection:** Protects 1/4, 1/2, or the entire memory array.  
- **Low Power Consumption:** Active current of 3 mA (max), standby current of 10 µA (max).  
- **Built-in Noise Filter:** Enhances reliability in noisy environments.  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics and timing diagrams, refer to the official documentation.

Application Scenarios & Design Considerations

SPI Serial E2PROM with Block LockTM Protection

Alternative Part Number

  • M95020-WMN6TP --: SPI EEPROM with the same 2Kbit density and similar pinout; widely available and a common drop-in replacement for the X25020.
  • 25LC020A-I/SN --: 2Kbit SPI serial EEPROM in an 8-pin package with compatible SPI interface and timing, well supported and easy to source.
  • CAT25020VI-GT3 --: 2Kbit SPI EEPROM offering equivalent functionality and pin compatibility, suitable as an alternative with good availability.
  • AT25256A-10SU-2.7 --: Same Atmel SPI serial EEPROM family with 256Kbit density, SOIC-8 package and 2.7V operation; drop-in compatible in most designs.
  • M95256-WMN6TP --: Industry-standard SPI EEPROM with equivalent 256Kbit capacity and SOIC-8 footprint; widely available second source.
  • 25LC256-I/SN --: Popular SPI serial EEPROM with matching 256Kbit density and SOIC-8 pinout; well-supported alternative from a major vendor.

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