5 Volt, Byte Alterable E2PROM The X28C256PI-20 is a 256Kbit (32K x 8) CMOS EEPROM manufactured by XICOR. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Organization:** 32K x 8 (256Kbit)
- **Access Time:** 200ns (max)
- **Operating Voltage:** 5V ±10%
- **Operating Temperature Range:**
- Commercial: 0°C to +70°C
- Industrial: -40°C to +85°C
- **Endurance:** 100,000 write cycles (min)
- **Data Retention:** 100 years (min)
- **Package:** 28-pin DIP (Dual In-line Package)
### **Descriptions:**
- The X28C256PI-20 is a high-performance, byte-alterable EEPROM with a fast read access time.
- It supports a simple byte-write operation and features a self-timed write cycle.
- The device is designed for reliable non-volatile storage in a wide range of applications.
### **Features:**
- **Fast Read Access Time:** 200ns maximum
- **Low Power Consumption:**
- Active Read Current: 30mA (max)
- Standby Current: 100μA (max)
- **Byte-Write Capability:** Allows individual byte modification without requiring a full-chip erase.
- **Self-Timed Write Cycle:** Eliminates the need for external timing components.
- **Hardware & Software Data Protection:** Prevents accidental writes.
- **CMOS Technology:** Ensures low power and high noise immunity.
- **JEDEC Standard Pinout:** Compatible with other 32K x 8 EEPROMs.
This information is based solely on the manufacturer's specifications for the X28C256PI-20.
