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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 ?A 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