TI-H: PIC16C84

To: ti-hardware@lists.ticalc.org
Subject: TI-H: PIC16C84
From: Ski4fun104 <Ski4fun104@aol.com>
Date: Sun, 22 Mar 1998 22:09:46 EST
Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: ti-hardware@lists.ticalc.org


EEPROM 
Electrically EPROM. In contrast to EPROMs, EEPROMs don't need exposure to UV
light to be erased, but can be erased electrically. 
Series designator: 28xx [?], where xx is the number of kbits stored.
Serial EEPROMs are labeled 24Cxx (8bit) or 93Cxx (16bit).
Low voltage eproms (PLCC): 3V (or 3.3V?) are labeled 27Vxx. 

EPROM 
Erasable PROM. EPROMs allow the contents to be erased by exposing its builtin
window to UV light. After this process, all memory cells contain $ff and the
EPROM can be written once again.
Series designator: 27xx, where xx is the number of kbits stored.

Here is the diffrence between EPROM and EEPROM the PIC 16C84 and PIC16F84 are
the same chip the 16F84 has more RAM 68x8 and a greater range of supply
current plus they can deal with greater frequencys otherwise they are about
the same

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