"Brand New Ready-to-Ship Synthesizer Module New Year Sale Special No Waiting!
Pack a lot of logic into a little space with a Logipac!
The Logipac module consists of a pair of 3-input, triple-function Boolean Gate sections, and a pair of D-type Flip-Flop sections. All inputs feature our anything-to-logic input circuitry which allows slow-moving waveforms (like sine waves) to behave like logic signals. The only requirement is that they cross +1V somewhere in their cycle.
Logic Gates
The Boolean Gate sections feature 3-inputs rather than the usual 2, which greatly increases their versatility and allows for the patching of more complicated logical functions with fewer modules. The 3-inputs are processed by logical AND, OR, and EXCLUSIVE OR (EXOR) functions simultaneously, and each function has it's own output jack and corresponding LED.
(To use the gates as 2-input functions, just use 2 inputs of the OR and EXOR with input 3 left unused. The AND requires the unused input be patched together with one of the used inputs.)
Flip-Flops
The D-type Flip-Flops are 1-bit memory storage devices with various ways to acquire the bit and turn it on and off. Applications are best understood by understanding what signals are coming and going.
[Q] and [NOTQ] Q-bar (pronounced Not Q or Q Bar)
These are the outputs. Q is the bit, either on or off and NOTQ is its logical inverse (when Q is on, NOTQ is off and vice-versa).
[S] SET
A high level at this input will latch Q high (NOTQ low)
[R] RESET
A high level at this input will latch Q low (NOTQ high)
Bringing both SET and RESET high simultaneously is undefined and will produce unpredictable results. It's like trying to force a see-saw to be both ways at once. When SET and RESET are brought low again, the one to fall last will be remembered.
[C] CLOCK and [D] DATA
The CLOCK and DATA inputs work together. The CLOCK is edge sensitive and when brought high, the state of the DATA input is latched into Q. That is, Q will equal DATA when CLOCKed.
There, that's not so complicated, is it?
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