User`s guide

MaxLoader User’s Guide
29
Equivalents: INTEL 27010, HITACHI 27101, TOSHIBA 571000, NEC
271001, MITSUBISHI 27101, 27301 (non-standard pin-out -- program as
HITACHI 27301's):
Equivalents: HITACHI 27301, NEC 271000, MITSUBISHI 27100, TOSHIBA
571001, INTEL 27C100
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 [phone]. 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
.