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X22C12PI

Manufacturer: XICOR

Nonvolatile Static RAM

Partnumber Manufacturer Quantity Availability
X22C12PI XICOR 905 In Stock

Description and Introduction

Nonvolatile Static RAM The part X22C12PI is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Xicor (now part of Intersil). Below are the factual specifications, descriptions, and features based on available knowledge:

### **Specifications:**  
- **Memory Size:** 1Kbit (128 x 8 bits)  
- **Interface:** I²C (2-wire serial interface)  
- **Supply Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Write Cycle Endurance:** 1,000,000 cycles per byte  
- **Data Retention:** 100 years  
- **Page Write Buffer:** 16 bytes  
- **Write Protect Feature:** Hardware and software write protection  
- **Package:** 8-pin DIP, SOIC  

### **Descriptions:**  
- The X22C12PI is a low-power, byte-alterable EEPROM designed for non-volatile storage in embedded systems.  
- It supports bidirectional data transfer protocol (I²C) for easy integration with microcontrollers.  
- Features built-in error checking and write protection mechanisms.  

### **Features:**  
- **Low Power Consumption:** Active current 1mA (typical), standby current 1µA (typical).  
- **High Reliability:** Endurance and retention suitable for industrial applications.  
- **Software Write Protection:** Allows partial or full memory protection.  
- **Hardware Write Protection:** WP pin enables/disables write operations.  
- **Self-Timed Write Cycle:** No external timing components required.  
- **Schmitt Trigger Inputs:** Noise filtering on SCL and SDA lines.  

For exact details, refer to the official datasheet from Intersil (formerly Xicor).

Application Scenarios & Design Considerations

Nonvolatile Static RAM

Alternative Part Number

  • AT24C02-10PU --: 2K-bit I2C serial EEPROM in 8-pin DIP, functionally equivalent to the X22C12 with compatible pinout and interface.
  • 24LC02B-I/P --: 2K-bit I2C EEPROM in PDIP-8, widely available and directly interchangeable in most X22C12PI applications.
  • CAT24C02LI --: 2K-bit I2C serial EEPROM in DIP-8 package, suitable drop-in replacement with similar voltage and timing characteristics.
  • CAT24C01PI --: 1K-bit I2C serial EEPROM in the same 8-pin DIP package, functionally compatible with the X22C12 for most non-volatile storage uses.
  • 24LC01B/P --: Widely available 1K-bit I2C EEPROM in PDIP-8, pin-compatible and commonly used as a drop-in replacement for Xicor X22C12 devices.
  • AT24C01A-10PU-2.7 --: 1K-bit I2C EEPROM in 8-pin DIP with 2.7V operation, suitable alternative when the original X22C12PI is unavailable.

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