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Memory ROM, PROM, EEPROM Mano and Kime Section 6-6
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Read-Only Memory
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An example of implementing a function using a ROM
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EPROMs, EEPROMs and Flash Memory EPROM –Erasable Programmable Read-Only Memory –Erase with ultraviolet light EEPROM –Electrically-Erasable Programmable Read-Only Memory Flash Memory –Electrically-Erasable in bulk
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Floating-gate avalanche MOS ProgrammingErasing
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EPROMs
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27xx EPROM Pinouts 1 2 3 4 5 6 7 9 10 11 12 8 19 20 17 18 15 16 13 14 21 22 23 24 GND Vcc A0 D0 D1 D2 D7 D6 D5 D4 D3 A10 A1 A2 A3 A4 A5 A6 A7 A9 A8 Vpp A11 27162732 __ OE Vpp __ OE / CE __ EPROM
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27xx EPROM Pinouts
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Xicor X28C010 128K x 8 E 2 PROM
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10 ms
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