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Last update: 17 January 2004

IC function:1 Mbit (1M×1) DRAM
Related components: 8 kbit (8k×1) DRAM, 16 kbit (16k×1) DRAM, 64 kbit (64k×1) DRAM, 256 kbit (256k×1) DRAM

Component documentation
IC numberManufacturerDocumentation
µPD421000NECNot available
MSM511000OkiNot available

Component versions
IC numberPackageAccess timeCBM part numberCBM part description
µPD421000C-10, MSM511000-10RS18-pin DIP100 ns318076-01IC, DRAM 1MB X 1

Positions
DeviceInstalled RAMPositionsPositions (not installed)PackageAccess time
A20588 MbU15..U78DIP100 ns
4 MbU15..U30, U47..U62U31..U46, U63..U78
2 MbU15, U17, U19, U21, U23, U25, U27, U29, U47..U54U16, U18, U20, U22, U24, U26, U28, U30..U46, U55..U78

Pinout
PinTypeName
1InputDIN
2Input_WE
3Input_RAS
4N/CNC
5..8InputAddress
9PowerVCC
10..15InputAddress
16Input_CAS
17OutputDOUT
18PowerGND

Copyright © 2003-2004 Ronald van Dijk - All rights reserved