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MICROCIRCUIT CHARACTERISTICS
INTRODUCTION
This section contains general specifications for the µ-PAC digital module line and
detailed technical data on the four basic integrated circuit types used throughout the product
line for digital logic functions.
GENERAL µ-PAC SPECIFICATIONS
All performance specifications listed below are guaranteed minimums based on
worst-case tolerances.
Actual performance will invariably exceed these guaranteed mini-
mums.
The following specifications apply to all µ-PAC types.
Any exceptions are listed in
the individual specifications.
Input Switching Thresholds (Refer to Figure A-1. )
a.
NAND gate and flip-flop de inputs
Active:
+l. 1 v(min), +l. 3 5v (typ)
Passive:
+3. Ov(max), +l. 55v (typ)
b.
Power Amplifier and flip-flop clock and control inputs
Active:
+l. 2v (min), +l. 6v (typ)
Passive:
+3. Ov (min), +l. 8v (typ)
Output Logic Levels (Guaranteed for all circuit types)
Passive:
+4. Ov (min) to +6. 3v (max)
Active:
Ov to O. 35v (max)
When referring to the outputs of circuits, the terms "set" and "reset" denote level
outputs and "assertion" and "negation" denote pulse outputs.
Flip-flops produce level out-
puts; one- shots and clocks produce pulse outputs.
Frequency Range (DC to 5 MC)
One common way of describing the speed of a digital circuit is to state the highest
frequency square or rectangular wave that can be applied to the input of a circuit and still
reliably produce a specified output.
Applied to a flip-flop, this method specifies the highest
toggling or complementing rate possible; and for a gate, an input discrimination capability
dependent on its circuit delay.
Of course, these circuits would be driving light loads.
Such
A-2
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