View source for Chip - SST39SF020 256KB ROM

This is the 256KB version of this ROM chip.  This chip has the advantage of being writable at 5V and can thus be used for cartridges that allow save games to be stored.

{| class="wikitable"
| style="text-align:right" width="180" | NC
! style="text-align:left" width="30" | 1
! style="text-align:right" width="30" | 32
| style="text-align:left" width="180" | VCC
|-
| style="text-align:right" | A16
! style="text-align:left" | 2
! style="text-align:right" | 31
| style="text-align:left" | ~WE
|-
| style="text-align:right" | A15
! style="text-align:left" | 3
! style="text-align:right" | 30
| style="text-align:left" | A17
|-
| style="text-align:right" | A12
! style="text-align:left" | 4
! style="text-align:right" | 29
| style="text-align:left" | A14
|-
| style="text-align:right" | A7
! style="text-align:left" | 5
! style="text-align:right" | 28
| style="text-align:left" | A13
|-
| style="text-align:right" | A6
! style="text-align:left" | 6
! style="text-align:right" | 27
| style="text-align:left" | A8
|-
| style="text-align:right" | A5
! style="text-align:left" | 7
! style="text-align:right" | 26
| style="text-align:left" | A9
|-
| style="text-align:right" | A4
! style="text-align:left" | 8
! style="text-align:right" | 25
| style="text-align:left" | A11
|-
| style="text-align:right" | A3
! style="text-align:left" | 9
! style="text-align:right" | 24
| style="text-align:left" | ~OE
|-
| style="text-align:right" | A2
! style="text-align:left" | 10
! style="text-align:right" | 23
| style="text-align:left" | A10
|-
| style="text-align:right" | A1
! style="text-align:left" | 11
! style="text-align:right" | 22
| style="text-align:left" | ~CE
|-
| style="text-align:right" | A0
! style="text-align:left" | 12
! style="text-align:right" | 21
| style="text-align:left" | D7
|-
| style="text-align:right" | D0
! style="text-align:left" | 13
! style="text-align:right" | 20
| style="text-align:left" | D6
|-
| style="text-align:right" | D1
! style="text-align:left" | 14
! style="text-align:right" | 19
| style="text-align:left" | D5
|-
| style="text-align:right" | D2
! style="text-align:left" | 15
! style="text-align:right" | 18
| style="text-align:left" | D4
|-
| style="text-align:right" | GND
! style="text-align:left" | 16
! style="text-align:right" | 17
| style="text-align:left" | D3
|}

This is one of the [[Integrated Circuit Chips]] in NerdConsole.