5 Volt, Byte Alterable E2PROM The X28C64 is a 64K (8K x 8) CMOS EEPROM manufactured by XICOR. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Memory Size:** 64Kbit (8K x 8)
- **Technology:** CMOS EEPROM
- **Supply Voltage:** 5V ±10%
- **Access Time:** 150ns (max)
- **Operating Temperature Range:** 0°C to +70°C (Commercial)
- **Endurance:** 100,000 write cycles per byte (minimum)
- **Data Retention:** 100 years (minimum)
- **Package Options:** 28-pin DIP, PLCC, SOIC
### **Descriptions:**
- The X28C64 is a non-volatile electrically erasable and programmable read-only memory (EEPROM).
- It supports both byte-write and page-write operations (up to 64 bytes per page).
- Features a fast write cycle time (10ms max for byte or page write).
- Compatible with JEDEC-standard pinouts for easy replacement of EPROMs (e.g., 2764).
### **Features:**
- **Low Power Consumption:**
- Active current: 30mA (max)
- Standby current: 100μA (max)
- **Hardware & Software Data Protection:**
- Built-in noise filtering for write protection
- Software-controlled write protection via command sequence
- **Self-Timed Write Cycle:**
- No external timing components required
- **High Reliability:**
- Endurance and data retention meet industrial standards
- **TTL-Compatible Inputs/Outputs**
- **Industrial-Grade Options Available**
This information is based on the manufacturer's datasheet for the X28C64 EEPROM.
