5 Volt, Byte Alterable E2PROM The X28C64J is a 64K (8K x 8) CMOS EEPROM manufactured by XICOR. Below are its specifications, descriptions, and features based on factual information:
### **Specifications:**
- **Memory Size:** 64Kbit (8K x 8)
- **Technology:** CMOS EEPROM
- **Supply Voltage:** 5V ±10%
- **Access Time:** 150ns (max)
- **Operating Temperature Range:** Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)
- **Endurance:** 100,000 write cycles per byte (minimum)
- **Data Retention:** 100 years (minimum)
- **Package:** 28-pin DIP (Dual In-line Package)
### **Descriptions:**
- The X28C64J is a byte-erasable and programmable EEPROM, allowing individual byte modification without requiring a full chip erase.
- It features a simple interface compatible with standard microprocessor systems.
- The device supports both parallel data transfer and a fast write cycle time.
### **Features:**
- **Low Power Consumption:**
- Active Read Current: 30mA (max)
- Standby Current: 100µA (max)
- **Fast Write Cycle Time:** 10ms (max) per byte
- **Hardware & Software Data Protection:**
- Built-in safeguards against accidental writes
- VCC detection circuitry prevents writes during power transitions
- **CMOS Technology:** Ensures high noise immunity and low power operation
- **JEDEC Standard Pinout:** Compatible with industry-standard 28-pin EEPROMs
This information is based on the manufacturer's datasheet for the X28C64J EEPROM from XICOR.
