Description
   The AT49BV642D(T) is a 2.7-volt 64-megabit Flash memory organized as 4,194,304 words of 16 bits each. The memory is divided into 135 sectors for erase operations. The device can be read or reprogrammed off a single 2.7V power supply, making it ideally suited for in-system programming.

FEATUREs
• Single Voltage Operation Read/Write: 2.65V - 3.6V
• 2.7V - 3.6V Read/Write
• Access Time – 70 ns
• Sector Erase Architecture
   – One Hundred Twenty-seven 32K Word Main Sectors with Individual Write Lockout
   – Eight 4K Word Sectors with Individual Write Lockout
• Fast Word Program Time – 10 µs
• Typical Sector Erase Time: 32K Word Sectors – 500 ms; 4K Word Sectors – 100 ms
• Suspend/Resume Feature for Erase and Program
   – Supports Reading and Programming Data from Any Sector by Suspending Erase
      of a Different Sector
   – Supports Reading Any Word by Suspending Programming of Any Other Word
• Low-power Operation
   – 10 mA Active
   – 15 µA Standby
• Data Polling and Toggle Bit for End of Program Detection
• VPP Pin for Write Protection and Accelerated Program Operations
• RESET Input for Device Initialization
• Sector Lockdown Support
• TSOP Package
• Top or Bottom Boot Block Configuration Available
• 128-bit Protection Register
• Common Flash Interface (CFI)
• Green (Pb/Halide-free) Packaging