5 Volt, Byte Alterable E2PROM The X28C64D-25 is a 64K (8K x 8) CMOS EEPROM manufactured by Xicor. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Organization:** 8K x 8 (64K bits)
- **Access Time:** 250 ns (X28C64D-25)
- **Operating Voltage:** 5V ±10%
- **Operating Current:** 30 mA (max)
- **Standby Current:** 100 µA (max)
- **Write Cycle Time:** 5 ms (max)
- **Endurance:** 100,000 write cycles per byte (min)
- **Data Retention:** 100 years (min)
- **Package Options:** 28-pin DIP, PLCC, and SOIC
### **Descriptions:**
- The X28C64D-25 is a high-performance, byte-erasable EEPROM with a fast access time of 250 ns.
- It features a simple, microprocessor-compatible interface with no external components required for programming.
- The device supports both parallel and software data protection mechanisms to prevent accidental writes.
- It is fully compatible with JEDEC standards for pinout and functionality.
### **Features:**
- **Fast Read Access Time:** 250 ns
- **Low Power Consumption:**
- Active current: 30 mA (max)
- Standby current: 100 µA (max)
- **Byte-Write Capability:** Allows individual byte modification without full-chip erase.
- **Hardware and Software Data Protection:** Prevents inadvertent writes.
- **High Reliability:**
- 100,000 write cycles per byte
- 100-year data retention
- **CMOS Technology:** Ensures low power and high noise immunity.
- **Industrial Temperature Range:** -40°C to +85°C
This EEPROM is commonly used in applications requiring non-volatile memory storage, such as embedded systems, automotive electronics, and industrial controls.
