5 Volt, Byte Alterable E2PROM The X28C64P 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 floating gate
- **Supply Voltage:** 5V ±10%
- **Access Time:** 120ns, 150ns, 200ns (depending on speed grade)
- **Operating Temperature Range:** Commercial (0°C to +70°C) and Industrial (-40°C to +85°C)
- **Endurance:** 100,000 write cycles per byte (minimum)
- **Data Retention:** 100 years (minimum)
- **Package Options:** 28-pin PDIP, PLCC, and SOIC
### **Descriptions:**
- The X28C64P is a byte-erasable and byte-programmable EEPROM.
- It features a fast write cycle time (10ms max per byte) with automatic erase before write.
- Compatible with JEDEC-standard pinouts for easy replacement of EPROMs and other EEPROMs.
- Supports both parallel and page-mode write operations.
### **Features:**
- **Low Power Consumption:**
- Active Read Current: 30mA (max)
- Standby Current: 100μA (max)
- **Hardware & Software Data Protection:**
- VCC sense for write protection
- Software-controlled write protection via command sequence
- **Fast Read Access Time:** 120ns, 150ns, or 200ns options
- **Self-Timed Write Cycle:** No external timing components required
- **CMOS and TTL Compatible I/O Levels**
- **Reliable Data Retention:** 100 years minimum
This information is based on the manufacturer's datasheet for the X28C64P EEPROM by XICOR.
