MaxLoader User’s Guide

16-bit 1-Megabits

Any devices with the number 27210, 271024 and the MITSUBISHI 27102. 27011: The 27011 is a 28-pin 1-megabit device that is organized into 8 pages of 16k-bytes. NOTE: The 27512 is 4 pages of 16k-bytes.

Erasing an EPROM

An EPROM has a quartz window located on the chip just above the die. Erasing an EPROM is done by exposing the EPROM to high-frequency ultra-violet (UV) light waves. Erasing an EPROM usually takes 15-20 minutes, but may be shorter or longer, depending on the device. If you wish to purchase an Eraser, call EE Tools at (408) 263-2221. When an EPROM is not being erased, the window may be covered with an opaque label. Sometimes (over a period of years) an EPROM will start to erase due to the rooms level of fluorescent light. Direct exposure to sunlight also has the same effect, but happens much more rapidly

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PLD

A programmable logic device (PLD) consists of an array of logic gates and flip- flops that can be programmed to implement an almost unlimited number of logic designs. These are programmable logic arrays that can be EEPROM based, EPROM based, fused link, anti-fuse, or Flash-based technology. They are programmable by the user to implement logic circuits in order to reduce part

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IBM MaxLoader manual Bit 1-Megabits, Erasing an Eprom