2 Megabit (256 K X 8-bit) Cmos 12.0 Volt, Bulk Erase Flash Memory - Advanced Micro Devices

The AM28F020 is a 2 Megabit Flash memory orga- nized as 256 Kbytes of 8 bits each. AMDs Flash mem- ories offer the most cost-effective and reliable read/ write non-volatile random access memory. The AM28F020 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 AM28F020 is erased when shipped from the factory. The standard AM28F020 offers access times of as fast as 70 ns, allowing high speed Microprocessors to operate without wait states. To eliminate bus conten- tion, the device has separate chip enable (CE#) and output enable (OE#) controls. AMDs Flash Memories augment EPROM functionality with in-circuit electrical erasure and programming. The AM28F020 uses a command Register to manage this functionality, while maintaining a JEDEC-standard 32- pin pinout. The command Register allows for 100% TTL level control inputs and fixed power supply levels during erase and programming, while maintaining maximum EPROM compatibility. AMDs Flash technology reliably stores memory con- tents even after 10,000 erase and program cycles. The AMD cell is designed to optimize the erase and pro- gramming mechanisms. In addition, the combination of advanced tunnel oxide processing and low internal electric fields for erase and programming operations produces reliable cycling. The AM28F020 uses a 12.05% VPP supply input to perform the Flasherase and Flashrite functions. The highest degree of latch-up protection is achieved with AMDs proprietary non-epi process. Latch-up pro- tection is provided for stresses up to 100 mA on address and data pins from 1 V to VCC +1 V. The AM28F020 is byte programmable using 10 s programming pulses in accordance with AMDs Flashrite programming algorithm. The typical room temperature programming time of the AM28F020 is four seconds. The entire chip is bulk erased using 10 ms erase pulses according to AMDs Flasherase algorithm. Typical erasure at room temperature is accomplished in less than one second. The windowed package and the 1520 minutes required for EPROM erasure using ultraviolet light are eliminated. By Advanced Micro Devices
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AM28F020 Pinout, Pinouts
AM28F020 pinout,Pin out
This is one package pinout of AM28F020,If you need more pinouts please download AM28F020's pdf datasheet.

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