5 Volt, Byte Alterable E2PROM The X28C512PI-20 is a 512K (64K x 8) CMOS EEPROM manufactured by XICOR. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Memory Size:** 512 Kbit (64K x 8)
- **Operating Voltage:** 5V ±10%
- **Access Time:** 200 ns (PI-20 speed grade)
- **Data Retention:** 100 years minimum
- **Endurance:** 100,000 write cycles per byte
- **Operating Temperature Range:** Commercial (0°C to +70°C)
- **Package:** 28-pin PDIP (Plastic Dual In-line Package)
### **Descriptions:**
- **Type:** Electrically Erasable Programmable Read-Only Memory (EEPROM)
- **Interface:** Parallel (byte-wide)
- **Organization:** 65,536 words x 8 bits
- **Write Protection:** Software-controlled block protection
- **Standby Current:** Low power consumption in standby mode
### **Features:**
- **Fast Read Access Time:** 200 ns
- **Low Power Consumption:**
- Active current: 30 mA (typical)
- Standby current: 100 µA (typical)
- **Byte and Page Write Modes:**
- Byte write (single-byte programming)
- Page write (up to 64 bytes per page)
- **Hardware and Software Data Protection:**
- VCC power-up/down protection
- Write lockout during power transitions
- **CMOS Technology:** High reliability and low power operation
- **JEDEC Standard Pinout:** Compatible with other 512K EEPROMs
This information is based solely on the manufacturer's datasheet and technical documentation.
