Texas Instruments SN54ALS109AJ, SN54AS109AJ, SN74AS109AD, SN74AS109ADR, SN74AS109AN Datasheet
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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
• Package Options Include Plastic
Small-Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
TYPICAL MAXIMUM
TYPE
′ALS109A 50 6
′AS109A 129 29
CLOCK
FREQUENCY
(MHz)
description
These devices contain two independent J-K
positive-edge-triggered flip-flops. A low level at
the preset (PRE
resets the outputs regardless of the levels of the
other inputs. When PRE
(high), data at the J and K
setup-time requirements are transferred to the
outputs on the positive-going edge of the clock
(CLK) pulse. Clock triggering occurs at a voltage
level and is not directly related to the rise time of
the clock pulse. Following the hold-time interval,
data at the J and K
affecting the levels at the outputs. These versatile
flip-flops can perform as toggle flip-flops by
grounding K
perform as D-type flip-flops if J and K
together.
) or clear (CLR) inputs sets or
inputs can be changed without
and tying J high. They also can
TYPICAL POWER
DISSIPATION
PER FLIP-FLOP
and CLR are inactive
inputs meeting the
(mW)
are tied
SN54ALS109A, SN54AS109A ...J PACKAGE
SN74ALS109A, SN74AS109A ...D OR N PACKAGE
SN54ALS109A, SN54AS109A . . . FK PACKAGE
1K
1CLK
NC
1PRE
1Q
NC – No internal connection
(TOP VIEW)
1CLR
1J
1K
1CLK
1PRE
1Q
1Q
GND
(TOP VIEW)
1J
3212019
4
5
6
7
8
910111213
1Q
1
2
3
4
5
6
7
8
1CLR
GND
NC
NC
16
15
14
13
12
11
10
9
V
CC
2Q
V
CC
2CLR
2J
2K
2CLK
2PRE
2Q
2Q
2CLR
18
17
16
15
14
2Q
2J
2K
NC
2CLK
2PRE
The SN54ALS109A and SN54AS109A are characterized for operation over the full military temperature range
of –55°C to 125°C. The SN74ALS109A and SN74AS109A are characterized for operation from 0°C to 70°C.
FUNCTION TABLE
PRE CLR CLK J K Q Q
L H X X X H L
H LXXXLH
LLXXXH
HH↑LLLH
HH↑H L Toggle
H H ↑ LHQ0Q0
HH↑HHHL
HHLXXQ0 Q0
†
The output levels in this configuration are not specified to
meet the minimum levels for VOH if the lows at PRE
CLR
configuration is nonstable; that is, it does not persist when
either PRE
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
INPUTS
are near VIL maximum. Furthermore, this
or CLR returns to its inactive (high) level.
OUTPUTS
†
H
†
and
Copyright 1995, Texas Instruments Incorporated
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
SN54ALS109A, SN54AS109A, SN74ALS109A, SN74AS109A
UNIT
t
S
CLK↑
ns
DUAL J-K
POSITIVE-EDGE-TRIGGERED FLIP-FLOPS
WITH CLEAR AND PRESET
SDAS198B – APRIL 1982 – REVISED AUGUST 1995
logic symbol
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
†
1PRE
1J
1CLK
1K
1CLR
2PRE
2J
2CLK
2K
2CLR
5
2
4
3
1
11
14
12
13
15
S
1J
1K
R
C1
10
6
1Q
7
1Q
2Q
9
2Q
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
Input voltage, V
Operating free-air temperature range, T
Storage temperature range –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
‡
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CC
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
: SN54ALS109A –55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . .
A
SN74ALS109A 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
‡
recommended operating conditions
V
CC
V
IH
V
IL
I
OH
I
OL
f
clock
t
w
su
t
h
T
A
Supply voltage 4.5 5 5.5 4.5 5 5.5 V
High-level input voltage 2 2 V
Low-level input voltage 0.7 0.8 V
High-level output current –0.4 –0.4 mA
Low-level output current 4 8 mA
Clock frequency 0 30 0 34 MHz
Pulse duration
etup time before
Hold time after CLK↑ Data 0 0 ns
Operating free-air temperature –55 125 0 70 °C
SN54ALS109A SN74ALS109A
MIN NOM MAX MIN NOM MAX
PRE or CLR low 15 15
CLK high 16.5 14.5
CLK low 16.5 14.5
Data 15 15
PRE or CLR inactive 10 10
ns
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ALS109A, SN54AS109A, SN74ALS109A, SN74AS109A
PARAMETER
TEST CONDITIONS
UNIT
VOLV
4.5 V
V
I
V
V
V
mA
I
V
5.5 V
V
2.7 V
A
I
V
V
V
mA
(INPUT)
(OUTPUT)
PRE
CLR
Q
Q
ns
CLK
Q
Q
ns
DUAL J-K
POSITIVE-EDGE-TRIGGERED FLIP-FLOPS
WITH CLEAR AND PRESET
SDAS198B – APRIL 1982 – REVISED AUGUST 1995
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54ALS109A SN74ALS109A
MIN TYP†MAX MIN TYP†MAX
V
IK
V
OH
I
IH
IL
I
O
I
CC
†
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, J, or K
PRE or CLR
CLK, J, or K
PRE or CLR
CLK, J, or K
PRE or CLR
‡
VCC = 4.5 V, II = –18 mA –1.5 –1.5 V
VCC = 4.5 V to 5.5 V, IOH = –0.4 mA VCC–2 VCC–2 V
=
CC
= 5.5 V,
CC
,
=
CC
= 5.5 V,
CC
VCC = 5.5 V, VO = 2.25 V –20 –112 –30 –112 mA
VCC = 5.5 V, See Note 1 2.4 4 2.4 4 mA
, CLK, and PRE grounded, then with J, K, CLK, and CLR grounded.
IOL = 4 mA 0.25 0.4 0.25 0.4
IOL = 8 mA 0.35 0.5
= 7
I
=
I
= 0.4
I
0.1 0.1
0.2 0.2
20 20
40 40
–0.2 –0.2
–0.4 –0.4
µ
switching characteristics (see Figure 1)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
PARAMETER
f
max
t
PLH
t
PHL
t
PLH
t
§
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
PHL
FROM
INP
or
T
TO
TP
or
or
T
RL = 500 Ω,
TA = MIN to MAX
SN54ALS109A SN74ALS109A
MIN MAX MIN MAX
30 34 MHz
3 17 3 13
5 17 5 15
5 21 5 16
5 20 5 18
§
UNIT
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3
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