SDLS037 - DECEMBER 1983 - REVISED MARCH 1988
PRODUCTION DATA documents contain information current as of publicationdate. Products conform to specifications per the terms of Texas Instrumentsstandard warranty. Production processing does not necessarily include testingof all parameters.
These devices contain two independent J-K\ positive-edge-triggeredflip-flops. A low level at the preset or clear inputs sets or resets the outputsregardless of the levels of the other inputs. When preset and clear are inactive(high), data at the J and K\ inputs meeting the setup time requirementsare transferred to the outputs on the positive-going edge of the clock pulse.Clock triggering occurs at a voltage level and is not directly related tothe rise time of the clock pulse. Following the hold time interval, data atthe J and K\ inputs may be changed without affecting the levelsat the outputs. These versatile flip-flops can perform as toggle flip-flopsby grounding K\ and tying J high. They also can perform as D-typeflip-flops if J and K\ are tied together.
The SN54109 and SN54LS109A are characterized for operation over the fullmilitary temperature range of -55°C to 125°C. The SN74109 and SN74LS109Aare characterized for operation from 0°C to 70°C.
View more information about generic part numbers:SN54LS109A, SN74109, SN74LS109A
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