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Last update: 12 April 2015

IC numbers:DS1000, EP87xx
IC function:5-Tap delay line

Component documentation
IC numberManufacturerDocumentation
DS1000Dallas SemiconductorDatasheet (PDF, local)
EP87xxPCA ElectronicsDatasheet (PDF)

Component versions
IC numberPackageDelayCBM part numberCBM part descriptionReplacement parts
DS1000K-25, EP870014-pin DIP (N/C leads sheared)25 ns390555-01IC, delayline, 5-tap, 25 ns (DIP14)For 14-pin sockets, the DS1000-25 can be used

Positions
DevicePositionComponentsPackage
A4000U102EP8700DIP
A4000TU102DS1000K-25, EP8700DIP
68040 CPU cardU103EP8700DIP

Pinout DS1000
PinTypeName
1InputIN
2..3N/CNC
4OutputTAP2
5N/CNC
6OutputTAP4
7PowerGND
8OutputTAP5
9N/CNC
10OutputTAP3
11N/CNC
12OutputTAP1
13N/CNC
14PowerVCC

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