DESCRIPTION:
The Turbo IC 28C256A is a 32K X 8 EEPROM fabricated with Turbo’s proprietary, high reliability, high performance CMOS technology. The 256K bits of memory are organized as 32K by 8 bits. The device offers access time of 120 ns with power dissipation below 250 mW.

FEATURES:
• 120 ns Access Time
• Automatic Page Write Operation
   Internal Control Timer
   Internal Data and Address Latches for 64 Bytes
• Fast Write Cycle Times
   Byte or Page Write Cycles: 10 ms
   Time to Rewrite Complete Memory: 5 sec
   Typical Byte Write Cycle Time: 160 µsec
• Software Data Protection
• Low Power Dissipation
   50 mA Active Current
   200 µA CMOS Standby Current
• Direct Microprocessor End of Write Detection
   Data Polling
• High Reliability CMOS Technology with Self Redundant
   EEPROM Cell
      Endurance: 100,000 Cycles
      Data Retention: 10 Years
• TTL and CMOS Compatible Inputs and Outputs
• Single 5 V ± 10% Power Supply for Read and
   Programming Operations
• JEDEC Approved Byte-Write Pinout