5 Volt, Byte Alterable E2PROM The X28C512KM-12 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:** 120 ns
- **Operating Voltage:** 5V ±10%
- **Operating Current:** 30 mA (max)
- **Standby Current:** 100 µA (max)
- **Endurance:** 100,000 write cycles (min) per byte
- **Data Retention:** 100 years (min)
- **Package:** 32-pin PLCC, 32-pin TSOP, or 28-pin DIP
### **Descriptions:**
- **Technology:** CMOS floating gate
- **Interface:** Parallel
- **Write Protection:** Software and hardware write protection options
- **Operating Temperature Range:** Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)
### **Features:**
- **Fast Read Access Time:** 120 ns
- **Low Power Consumption:**
- Active current: 30 mA (max)
- Standby current: 100 µA (max)
- **Byte and Page Write Modes:**
- Byte write (single-byte programming)
- Page write (up to 64 bytes in a single write cycle)
- **Self-Timed Write Cycle:**
- Internal control of programming and erase timing
- **Reliable Data Retention:**
- 100-year minimum data retention
- **Hardware and Software Protection:**
- VCC detection prevents writes during power transitions
- Software-controlled write protection via command sequence
- **Compatibility:**
- JEDEC-standard pinout for easy replacement of similar EEPROMs
This EEPROM is designed for applications requiring non-volatile memory with high endurance, fast access, and low power consumption.
(Note: Xicor was later acquired by Intersil, and some product lines may have been discontinued or rebranded.)
