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SN54ALS109A Datasheet(PDF) 3 Page - Texas Instruments

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Part No. SN54ALS109A
Description  DUAL J-K POSITIVE-EDGE-TRIGGERED FLIP-FLOPS WITH CLEAR AND PRESET
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54ALS109A Datasheet(HTML) 3 Page - Texas Instruments

   
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SN54ALS109A, SN54AS109A, SN74ALS109A, SN74AS109A
DUAL J-K POSITIVE-EDGE-TRIGGERED FLIP-FLOPS
WITH CLEAR AND PRESET
SDAS198B – APRIL 1982 – REVISED AUGUST 1995
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS109A
SN74ALS109A
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
MIN
TYP†
MAX
UNIT
VIK
VCC = 4.5 V,
II = –18 mA
–1.5
–1.5
V
VOH
VCC = 4.5 V to 5.5 V,
IOH = – 0.4 mA
VCC –2
VCC –2
V
VOL
VCC =4 5V
IOL = 4 mA
0.25
0.4
0.25
0.4
V
VOL
VCC = 4.5 V
IOL = 8 mA
0.35
0.5
V
II
CLK, J, or K
VCC =5 5V
VI =7V
0.1
0.1
mA
II
PRE or CLR
VCC = 5.5 V,
VI = 7 V
0.2
0.2
mA
IIH
CLK, J, or K
VCC =5 5V
VI =2 7V
20
20
µA
IIH
PRE or CLR
VCC = 5.5 V,
VI = 2.7 V
40
40
µA
IIL
CLK, J, or K
VCC =5 5V
VI =0 4V
– 0.2
– 0.2
mA
IIL
PRE or CLR
VCC = 5.5 V,
VI = 0.4 V
– 0.4
– 0.4
mA
IO‡
VCC = 5.5 V,
VO = 2.25 V
–20
–112
–30
–112
mA
ICC
VCC = 5.5 V,
See Note 1
2.4
4
2.4
4
mA
† All typical values are at VCC = 5 V, TA = 25°C.
‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
NOTE 1: ICC is measured with J, K, CLK, and PRE grounded, then with J, K, CLK, and CLR grounded.
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 Ω,
TA = MIN to MAX§
UNIT
(INPUT)
(OUTPUT)
SN54ALS109A
SN74ALS109A
MIN
MAX
MIN
MAX
fmax
30
34
MHz
tPLH
PRE or CLR
QorQ
3
17
3
13
ns
tPHL
PRE or CLR
Q or Q
5
17
5
15
ns
tPLH
CLK
QorQ
5
21
5
16
ns
tPHL
CLK
Q or Q
5
20
5
18
ns
§ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.


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