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Contents
Section
GENERAL INFORMATION
Introduction ce ee ee eeeeseoscocenoscsescsoscoscscscssosseeslm
Identification eo 0 0 ® 6 0 9 00 0 0 00 0 0090 00 00 © 0 @ 0 00 00 00 0 00 0 0 0 1
THEORY OF OPERATION
Functional Description...cececese
RAM... eevee cococees ceo
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Address latch counter
Control logic
Timing logic
RAM select logic
I/0 Decode LOBiC.ieeeeeeeseeososssecscsocssoscscssscsosssss
Enable clock logic
Bank enable logic
Write enable logic
Power Supply...
Buffer Circuit..... cee ores sees ecees eset eee ee ceo ee
Unidirectional buffer
Bidirectional buffer
EMI circuitry
DISASSEMBLY AND REASSEMBLY
DIAGNOSTIC SOFTWARE
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