20/40 MHz Logic Analyser
with expansion capability and PC control
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Materials
Extra info / Update
Component list
R1-R4 = 470k
R5-R8 = 8-way 470k SIL array
R9 =1k2
R10 = 10k
R11 = 47k
Capacitors:
C1-C7,C14-C23,C28,C29 = 47nF
C8,C9 = 22pF
C10-C13 = 1µF 16V radial
C24 = 2200µF 16V radial
C25,C26 = 100nF
C27 = 1µF 16V radial
Semiconductors:
B1 = B80C1500 in rectangular case, (80V piv, 1.5A)
D1 = LED, red, low-current
IC1-IC4 = IDT7206 (-15, etc. see text) or CY7C425-15PC
IC5 = 74F74
IC6 = 74F00
IC7 = 74F02
IC8,IC9 = 74F393
IC10,IC12 = 74F251
IC11 = 74F688
IC13 = 74LS573
IC14 = 74F153
IC15 = MAX232
IC16 = AT90S8515-8PC, programmed, order code 020032-41
IC17 = 7805
IC18 = TL7705-ACP
IC19 = 40MHz or 20MHz oscillator module in DIL14 case (see text)
Miscellaneous:
K1-K4 = 2-way boxheader (angled pins possible)
K5 = 9-way sub-D socket (female), PCB mount, angled pins
X1 = 8MHz quartz crystal
PB, order code 020032-1
Disk, demo program, order code 020032-11 or Free Download
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