GENERAL DESCRIPTION

The Am28F512A is a 512 Kbit Flash memory organized as 64 Kbytes of 8 bits each. AMD’s Flash memories offer the most cost-effective and reliable read/write non- volatile random access memory. The Am28F512A is packaged in 32-pin PDIP, PLCC, and TSOP versions. It is designed to be reprogrammed and erased in-system or in standard EPROM programmers. The Am28F512A is erased when shipped from the factory.

DISTINCTIVE CHARACTERISTICS

■ High performance

— 70 ns maximum access time

■ CMOS low power consumption

— 30 mA maximum active current

— 100 µA maximum standby current

— No data retention power consumption

■ Compatible with JEDEC-standard byte-wide 32-Pin EPROM pinouts

— 32-pin PDIP

— 32-pin PLCC

— 32-pin TSOP

■ 100,000 write/erase cycles minimum

■ Write and erase voltage 12.0 V −5

■ Latch-up protected to 100 mA from -1 V to VCC +1 V

■ Embedded Erase Electrical Bulk Chip-Erase

— Two seconds typical chip-erase including pre-programming

■ Embedded Program

— 4 µs typical byte-program including time-out

— One second typical chip program

■ Command register architecture for

microprocessor/microcontroller compatible write interface

■ On-chip address and data latches

■ Advanced CMOS flash memory technology

— Low cost single transistor memory cell

■ Embedded algorithms for completely self-timed write/erase operations