5 Volt, Byte Alterable E2PROM The X28HC64PM-90 is a high-speed 64K (8K x 8) CMOS EEPROM manufactured by Xicor. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Density:** 64K (8K x 8)
- **Technology:** CMOS EEPROM
- **Access Time:** 90 ns
- **Operating Voltage:** 5V ±10%
- **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 Options:** 28-pin DIP, PLCC, or SOIC
### **Descriptions:**
- The X28HC64PM-90 is a high-performance, byte-erasable EEPROM with fast read and write operations.
- It features a low-power standby mode and automatic write cycle timing.
- The device is designed for applications requiring non-volatile memory with high reliability and endurance.
### **Features:**
- **High-Speed Access:** 90 ns read access time.
- **Byte-Write Capability:** Individual bytes can be written without erasing the entire chip.
- **Automatic Write Cycle:** Internal control of programming and erase operations.
- **Low Power Consumption:** Active current of 30 mA (typical), standby current of 100 µA (typical).
- **Hardware & Software Protection:** Write protection via control pins or software commands.
- **CMOS Technology:** Ensures low power and high noise immunity.
- **Industry-Standard Pinout:** Compatible with other 28-pin EEPROMs.
This information is based on the manufacturer's datasheet for the X28HC64PM-90.
