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Last update: 20 March 2004

IC number:8237A
IC function:DMA controller

Component documentation
IC numberManufacturerDocumentation
µPD8237ANECNot available

Component versions
IC numberPackageSpeedCBM part numberCBM part description
µPD8237AC-540-pin DIP5 MHz380203-01IC, 8237A-5 DMA-controller 5MHz

Positions
DevicePositionsPackageSpeed
A1060 main boardU32DIP5 MHz
PC-10 CPU boardU70DIP5 MHz
PC-10 combined boardU14DIP

Pinout
PinTypeName
1I/OIOR_
2I/OIOW_
3OutputMEMR_
4OutputMEMW_
5InputPIN5
6InputREADY
7InputHLDA
8OutputADSTB
9OutputAEN
10OutputHRQ
11InputCS_
12InputCLK
13InputRESET
14..15OutputDACK2..DACK3
16..19InputDREQ3..DREQ0
20PowerVSS
21..23I/ODB7..DB5
24..25OutputDACK1..DACK0
26..30I/ODB4..DB0
31PowerVCC
32..35I/OA0..A3
36I/OEOP_
37..40OutputA4..A7

Copyright © 2004 Ronald van Dijk - All rights reserved