5 Volt, Byte Alterable E2PROM The X28C512D-15 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:** 150 ns
- **Operating Voltage:** 5V ±10%
- **Operating Temperature Range:**
- Commercial: 0°C to +70°C
- Industrial: -40°C to +85°C
- **Endurance:** 100,000 write cycles per byte
- **Data Retention:** 100 years
- **Package Options:**
- 32-lead PDIP (Plastic Dual In-Line Package)
- 32-lead PLCC (Plastic Leaded Chip Carrier)
- 32-lead TSOP (Thin Small Outline Package)
### **Descriptions:**
- The X28C512D-15 is a high-performance, byte-alterable EEPROM with a fast access time.
- It supports **page write mode**, allowing up to 64 bytes to be written in a single operation.
- Features **software data protection (SDP)** to prevent accidental writes.
- Compatible with JEDEC standards for easy integration into existing designs.
### **Features:**
- **Fast Read Access Time:** 150 ns
- **Low Power Consumption:**
- Active Current: 30 mA (max)
- Standby Current: 100 µA (max)
- **Page Write Mode:** Up to 64 bytes can be written in one operation.
- **Hardware & Software Write Protection:** Prevents unintended writes.
- **Automatic Erase Before Write:** Ensures reliable data storage.
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with standard logic levels.
- **Self-Timed Write Cycle:** No external timing components required.
This EEPROM is commonly used in applications requiring non-volatile memory storage, such as embedded systems, industrial controls, and telecommunications equipment.
(Note: Xicor was acquired by Intersil in 2004, which was later acquired by Renesas Electronics.)
