DESCRIPTION
The Microchip Technology Inc. 28LV64A is a CMOS 64K non-volatile electrically Erasable PROM organized as 8K words by 8 bits. The 28LV64A is accessed like a static RAM for the read or write cycles without the need of external components. During a “byte write”, the address and data are latched internally, freeing the microprocessor address and data bus for other operations.

FEATURES
• 2.7V to 3.6V Supply
• Read Access Time—300 ns
• CMOS Technology for Low Power Dissipation
   - 8 mA Active
   - 50 µA CMOS Standby Current
• Byte Write Time—3 ms
• Data Retention >200 years
• High Endurance - Minimum 100,000 Erase/Write Cycles
• Automatic Write Operation
   - Internal Control Timer
   - Auto-Clear Before Write Operation
   - On-Chip Address and Data Latches
• Data Polling
• Ready/Busy
• Chip Clear Operation
• Enhanced Data Protection
   - VCC Detector
   - Pulse Filter
   - Write Inhibit
• Electronic Signature for Device Identification
• Organized 8Kx8 JEDEC Standard Pinout
   - 28-pin Dual-In-Line Package
   - 32-pin Chip Carrier (Leadless or Plastic)
   - 28-pin Thin Small Outline Package (TSOP) 8x20mm
   - 28-pin Very Small Outline Package (VSOP) 8x13.4mm
• Available for Extended Temperature Ranges:
   - Commercial: 0˚C to +70˚C
   - Industrial: -40˚C to +85˚C