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SN54LS112A

Motorola Inc
Part Number SN54LS112A
Manufacturer Motorola Inc
Description DUAL JK NEGATIVE EDGE-TRIGGERED FLIP-FLOP
Published Apr 16, 2005
Detailed Description SN54/74LS112A DUAL JK NEGATIVE EDGE-TRIGGERED FLIP-FLOP The SN54 / 74LS112A dual JK flip-flop features individual J, K, ...
Datasheet PDF File SN54LS112A PDF File

SN54LS112A
SN54LS112A


Overview
SN54/74LS112A DUAL JK NEGATIVE EDGE-TRIGGERED FLIP-FLOP The SN54 / 74LS112A dual JK flip-flop features individual J, K, clock, and asynchronous set and clear inputs to each flip-flop.
When the clock goes HIGH, the inputs are enabled and data will be accepted.
The logic level of the J and K inputs may be allowed to change when the clock pulse is HIGH and the bistable will perform according to the truth table as long as minimum set-up and hold time are observed.
Input data is transferred to the outputs on the negative-going edge of the clock pulse.
DUAL JK NEGATIVE EDGE-TRIGGERED FLIP-FLOP LOW POWER SCHOTTKY LOGIC DIAGRAM (Each Flip-Flop) J SUFFIX CERAMIC CASE 620-09 16 1 Q 5(9) 6(7) Q CLEAR (CD) 15(14) J 3(11) 1(13) CLOCK (CP) 4(10) K 2(12) SET (SD) 16 1 N SUFFIX PLASTIC CASE 648-08 16 1 D SUFFIX SOIC CASE 751B-03 ORDERING INFORMATION MODE SELECT — TRUTH TABLE INPUTS OPERATING MODE SD Set Reset (Clear) *Undetermined Toggle Load “0” (Reset) Load “1” (Set) Hold L H L H H H H CD H L L H H H H J X X X h l h l K X X X h h l l Q H L H q L H q Q L H H q H L q OUTPUTS SN54LSXXXJ SN74LSXXXN SN74LSXXXD Ceramic Plastic SOIC LOGIC SYMBOL 4 10 3 J CP SD Q 5 11 J CP SD Q 9 1 13 Q 6 12 * Both outputs will be HIGH while both SD and CD are LOW, but the output states are unpredictable if SD and CD go HIGH simultaneously.
H, h = HIGH Voltage Level L, I = LOW Voltage Level X = Don’t Care l, h (q) = Lower case letters indicate the state of the referenced input (or output) l, h (q) = one set-up time prior to the HIGH to LOW clock transition.
2 K CD K CD Q 7 15 14 VCC = PIN 16 GND = PIN 8 FAST AND LS TTL DATA 5-185 SN54/74LS112A GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Output Current — High Output Current — Low Parameter 54 74 54 74 54, 74 54 74 Min 4.
5 4.
75 – 55 0 Typ 5.
0 5.
0 25 25 Max 5.
5 5.
25 125 70 – 0.
4 4.
0 8.
0 Unit V °C mA mA DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless ...


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