5 Volt, Byte Alterable E2PROM The X28C512P-25 is a 512K (64K x 8) CMOS EEPROM manufactured by XICOR. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Organization:** 64K x 8 (512K bits)
- **Access Time:** 250 ns (P-25 speed grade)
- **Operating Voltage:** 5V ±10%
- **Operating Current:** 30 mA (typical)
- **Standby Current:** 100 µA (typical)
- **Write Cycle Time:** 10 ms (maximum)
- **Endurance:** 100,000 write cycles per byte (minimum)
- **Data Retention:** 100 years (minimum)
- **Package:** 28-pin PDIP (Plastic Dual In-line Package)
### **Descriptions:**
- The X28C512P-25 is a high-performance, byte-alterable EEPROM with a fast read access time.
- It features a simple, microprocessor-compatible interface with no external components required for operation.
- The device supports both parallel and software data protection mechanisms to prevent accidental writes.
### **Features:**
- **Fast Read Access Time:** 250 ns
- **Low Power Consumption:**
- Active current: 30 mA (typical)
- Standby current: 100 µA (typical)
- **High Reliability:**
- 100,000 write cycles per byte
- 100-year data retention
- **Software Data Protection (SDP):** Prevents inadvertent writes
- **Hardware Write Protection:** Enabled via a dedicated pin
- **CMOS Technology:** Low power and high noise immunity
- **JEDEC Standard Pinout:** Compatible with other 512K EEPROMs
- **Industrial Temperature Range:** -40°C to +85°C
This information is based on the manufacturer's datasheet for the X28C512P-25.
