ROMS: Difference between revisions
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] V<sub>CC</sub><br> | ] V<sub>CC</sub><br> | ||
] {{overline|OE<sub>1</sub>}}/(CS)<br> | ] {{overline|OE<sub>1</sub>}}/({{overline|CS}})<br> | ||
] A<sub>13</sub><br> | ] A<sub>13</sub><br> | ||
] A<sub>8</sub><br> | ] A<sub>8</sub><br> | ||
| Line 61: | Line 61: | ||
</div> | </div> | ||
The hitachi ROM pin names in paranthesis. | |||
[[Category:Hardware]] | [[Category:Hardware]] | ||
[[Category:Integrated Circuit]] | [[Category:Integrated Circuit]] | ||
Revision as of 17:04, 7 May 2021
ROMS
Read Only Memories used in ZX Spectrum machines.
23128
16Kx8 bit MASK programmable ROM chip
1 of this IC make the ROM of the ZX Spectrum 16K/48K.
e.g. NEC UPD23128 or Hitachi HN613128P
Pinout:
|
NC [ |
1 ° 28 |
] VCC |
The hitachi ROM pin names in paranthesis.