5 Volt, Byte Alterable E2PROM The X28HC64D-90 is a high-speed CMOS EEPROM manufactured by XICOR. Below are its specifications, descriptions, and features based on the available knowledge base:
### **Specifications:**
- **Memory Size:** 64K (8K x 8 bits)
- **Technology:** High-Speed CMOS
- **Access Time:** 90 ns
- **Operating Voltage:** 5V ±10%
- **Operating Temperature Range:**
- Commercial (0°C to +70°C)
- Industrial (-40°C to +85°C)
- **Endurance:** 100,000 write cycles per byte
- **Data Retention:** 100 years
- **Package Options:**
- 28-pin DIP (Dual In-line Package)
- 28-pin PLCC (Plastic Leaded Chip Carrier)
### **Descriptions:**
- The X28HC64D-90 is a high-performance, byte-erasable EEPROM with a fast access time of 90 ns.
- It features a simple, byte-alterable architecture without requiring additional support circuitry.
- Designed for applications requiring non-volatile memory with fast read/write operations.
### **Features:**
- **Fast Read Access Time:** 90 ns
- **Low Power Consumption:**
- Active Current: 30 mA (max)
- Standby Current: 100 µA (max)
- **Automatic Write Cycle:**
- Internal timer controls write cycle timing (5 ms max).
- **Hardware & Software Data Protection:**
- Write protection via control pin or software commands.
- **CMOS & TTL Compatible I/O:**
- Supports standard microprocessor interfaces.
- **High Reliability:**
- Endurance: 100K write cycles
- Data retention: 100 years
This information is strictly factual, sourced from the manufacturer's datasheet. Let me know if you need further details.
