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SN54LS109A

Motorola Inc
Part Number SN54LS109A
Manufacturer Motorola Inc
Description DUAL JK POSITIVE EDGE-TRIGGERED FLIP-FLOP
Published Apr 16, 2005
Detailed Description SN54/74LS109A DUAL JK POSITIVE EDGE-TRIGGERED FLIP-FLOP The SN54/ 74LS109A consists of two high speed completely indepen...
Datasheet PDF File SN54LS109A PDF File

SN54LS109A
SN54LS109A

Overview
SN54/74LS109A DUAL JK POSITIVE EDGE-TRIGGERED FLIP-FLOP The SN54/ 74LS109A consists of two high speed completely independent transition clocked JK flip-flops.
The clocking operation is independent of rise and fall times of the clock waveform.
The JK design allows operation as a D flip-flop by simply connecting the J and K pins together.
LOGIC DIAGRAM DUAL JK POSITIVE EDGE-TRIGGERED FLIP-FLOP LOW POWER SCHOTTKY SET (SD) 5(11) Q CLEAR (CD) 1(15) CLOCK 4(12) Q 7(9) J 2(14) 6(10) J SUFFIX CERAMIC CASE 620-09 16 1 K 3(13) 16 1 N SUFFIX PLASTIC CASE 648-08 16 MODE SELECT — TRUTH TABLE INPUTS OPERATING MODE SD Set Reset (Clear) *Undetermined Load “1” (Set) Hold Toggle Load “0” (Reset) 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 H q q L Q L H H L q q H OUTPUTS 1 D SUFFIX SOIC CASE 751B-03 ORDERING INFORMATION SN54LSXXXJ SN74LSXXXN SN74LSXXXD Ceramic Plastic SOIC LOGIC SYMBOL 5 11 * 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 LOW to HIGH clock transition.
2 J SD Q 6 14 J SD Q 10 4 CP 7 CD Q 12 CP 3 K 13 K CD Q 9 1 15 VCC = PIN 16 GND = PIN 8 FAST AND LS TTL DATA 5-181 SN54/74LS109A 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 otherwise specified) Limits Symbol VIH VIL VIK VOH Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage 54 74 54, 74 VOL Output LOW Voltage 74 Input HIGH Current J, K, Clock Set, Clear J, K, Clock S...


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