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DM74LS109AN View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
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DM74LS109AN Datasheet PDF : 5 Pages
1 2 3 4 5
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
VI
Input Clamp Voltage
VOH
HIGH Level
Output Voltage
VOL
LOW Level
Output Voltage
II
Input Current @ Max
Input Voltage
VCC = Min, II = −18 mA
VCC = Min, IOH = Max
VIL = Max, VIH = Min
VCC = Min, IOL = Max
VIL = Max, VIH = Min
IOL = 4 mA, VCC = Min
VCC = Max
VI = 7V
J, K
Clock
Preset
Clear
Typ
Min
Max
(Note 7)
1.5
2.7
3.4
0.35
0.5
0.25
0.4
0.1
0.1
0.2
0.2
Units
V
V
V
mA
IIH
HIGH Level
Input Current
VCC = Max
VI = 2.7V
J,K
Clock
Preset
Clear
20
20
µA
40
40
IIL
LOW Level
Input Current
VCC = Max
VI = 0.4V
J, K
Clock
Preset
0.4
0.4
mA
0.8
Clear
0.8
IOS
Short Circuit Output Current
ICC
Supply Current
Note 7: All typicals are at VCC = 5V, TA = 25°C.
VCC = Max (Note 8)
VCC = Max (Note 9)
20
100
mA
4
8
mA
Note 8: Not more than one output should be shorted at a time, and the duration should not exceed one second. For devices, with feedback from the outputs,
where shorting the outputs to ground may cause the outputs to change logic state an equivalent test may be performed where VO = 2.125V with the minimum
and maximum limits reduced by one half from their stated values. This is very useful when using automatic test equipment.
Note 9: ICC is measured with all outputs OPEN, with CLOCK grounded after setting the Q and Q outputs HIGH in turn.
Switching Characteristics
at VCC = 5V and TA = 25°C
Symbol
Parameter
fMAX
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
Maximum Clock Frequency
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
From (Input)
To (Output)
Clock to
Q or Q
Clock to
Q or Q
Clear
to Q
Clear
to Q
Preset
to Q
Preset
to Q
RL = 2 k
CL = 15 pF
CL = 50 pF
Min
Max
Min
Max
25
20
25
35
30
35
25
35
30
35
25
35
30
35
Units
MHz
ns
ns
ns
ns
ns
ns
3
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