APT 8512 - Page 59

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Selection of up to 7 test le locations is achieved by using a Normally Open (N.O) Momentary Button. The
truth table below provides the pin locations needed in order to select the memories.
Memory Input Control
File Location PIN 1 PIN 9 PIN 8
M1 OFF OFF ON
M2 OFF ON OFF
M3 OFF ON ON
M4 ON OFF OFF
M5 ON OFF ON
M6 ON ON OFF
M7 ON ON ON