5 Volt, Byte Alterable E2PROM The X28HC64D-70 is a high-speed CMOS EEPROM manufactured by Xicor. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Specifications:**
- **Part Number:** X28HC64D-70
- **Manufacturer:** XICOR
- **Memory Type:** EEPROM (Electrically Erasable Programmable Read-Only Memory)
- **Density:** 64Kbit (8K x 8)
- **Access Time:** 70ns
- **Supply Voltage:** 5V ±10%
- **Operating Temperature Range:** Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)
- **Package Type:** 28-pin DIP (Dual In-line Package) or SOIC (Small Outline IC)
- **Write Cycle Time:** 5ms (typical)
- **Endurance:** 100,000 write cycles (minimum)
- **Data Retention:** 100 years (minimum)
### **Descriptions:**
- The X28HC64D-70 is a high-performance, byte-alterable EEPROM with a fast access time of 70ns.
- It features a 5V-only operation, making it compatible with standard TTL and CMOS logic levels.
- The device supports both sequential and random read operations.
- It includes an internal write control circuit for simplified interfacing with microprocessors.
### **Features:**
- **High-Speed Read Access:** 70ns maximum access time.
- **Low Power Consumption:** Active current of 30mA (typical), standby current of 100μA (typical).
- **Byte-Write Capability:** Allows individual byte modification without requiring a full-chip erase.
- **Automatic Write Timing:** Internal control circuitry manages write cycles.
- **Hardware and Software Data Protection:** Prevents accidental writes.
- **CMOS Technology:** Ensures low power dissipation and high noise immunity.
- **Industry-Standard Pinout:** Compatible with other 28-pin EEPROMs.
This information is based solely on the manufacturer's datasheet and technical documentation.
