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4 Mbit Mask ROM used in Commodore and Amiga equipment

IC function
4 Mbit (512k×8 / 256k×16) Mask ROM
Related components
2 Mbit Mask ROM, 8 Mbit Mask ROM

Component documentation
IC numberManufacturerDocumentation
NECNot available
MX23C4100MacronixDatasheet (PDF)

Component versions
IC numberPackage
All40-pin DIP

Programmed components
CBM part numberCBM part descriptionChip description
363968-01IC ROM Assy Kickstart ver 2.04
390979-01ROM 256k X 16 Kickstart 2.04Kickstart V2.04 37.175
391304-01ROM Kickstart V2.0 40pin DIPKickstart V2.05 37.300
391304-02Kickstart V2.05 37.350

Positions
AmigaPositionPackageSoftware
A500 PlusU6DIPKickstart 2.04
A600U6DIPKickstart 2.05

Pinout
Socket pinROM pinTypeNameSignal name
A500 PlusA600
1(A18)A19
21InputA17A18
3..102..9InputA7..A0A8..A1
1110Input_CSGND_ROMEN
1211PowerVSSGND
1312Input_OE_ROMEN_OE
1413OutputD0D0
1514OutputD8D8
1615OutputD1D1
1716OutputD9D9
1817OutputD2D2
1918OutputD10D10
2019OutputD3D3
2120OutputD11D11
2221PowerVCCVCC
2322OutputD4D4
2423OutputD12D12
2524OutputD5D5
2625OutputD13D13
2726OutputD6D6
2827OutputD14D14
2928OutputD7D7
3029OutputD15D15
3130PowerVSSGND
3231Input_BYTEVCC
33..4132..40InputA16..A8A17..A9
42(A19)A20

Copyright © 2002-2005 Ronald van Dijk - All rights reserved
Last update: 10 September 2005