Texas Instruments JM38510-34102BEA, JM38510-34102B2A, JM38510-34102BFA, SN74F109D, SN74F109DR Datasheet
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DUAL J-K
SN54F109, SN74F109
POSITIVE-EDGE-TRIGGERED FLIP-FLOPS
WITH CLEAR AND PRESET
SDFS047A – MARCH 1987 – REVISED OCT OBER 1993
• Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
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
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.
The SN54F109 is characterized for operation over
the full military temperature range of –55°C to
125°C. The SN74F109 is characterized for
operation from 0°C to 70°C.
) or clear (CLR) inputs sets or
and CLR are inactive
input meeting the
inputs may be changed without
and trying J high. They also can
are tied
SN54F109 ...J PACKAGE
SN74F109 ...D OR N PACKAGE
1CLR
1CLK
1PRE
1K
1CLK
NC
1PRE
1Q
NC – No internal connection
(TOP VIEW)
NC
NC
16
15
14
13
12
11
10
9
CC
V
2Q
VCC
2CLR
2J
2K
2CLK
2PRE
2Q
2Q
2CLR
18
17
16
15
14
2Q
1
1J
2
1K
3
4
5
1Q
6
7
1Q
GND
SN54F109 . . . FK PACKAGE
8
(TOP VIEW)
1J
1CLR
3212019
4
5
6
7
8
910111213
1Q
GND
2J
2K
NC
2CLK
2PRE
FUNCTION TABLE
INPUTS
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 ↑ LHQ
HH↑HHHL
HHLXXQ
†
The output levels are not guaranteed to meet the minimum
levels for VOH. Furthermore, this configuration is nonstable;
that is, it will not persist when PRE
inactive (high) level.
OUTPUTS
†
H
Q
0
Q
0
or CLR returns to its
†
0
0
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.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 1993, Texas Instruments Incorporated
2–1
SN54F109, SN74F109
UNIT
DUAL J-K
POSITIVE-EDGE-TRIGGERED FLIP-FLOPS
WITH CLEAR AND PRESET
SDFS047A – MARCH 1987 – REVISED OCT OBER 1993
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 range, V
Input voltage range, V
Input current range –30 mA to 5 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high state –0.5 V to V
Current into any output in the low state 40 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range: SN54F109 –55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
NOTE 1: The input voltage ratings may be exceeded provided the input current ratings are observed.
–0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CC
(see Note 1) –1.2 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74F109 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
‡
CC
recommended operating conditions
V
V
V
I
IK
I
OH
I
OL
T
2–2
CC
IH
IL
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 0.8 0.8 V
Input clamp current –18 –18 mA
High-level output current –1 –1 mA
Low-level output current 20 20 mA
Operating free-air temperature –55 125 0 70 °C
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54F109 SN74F109
MIN NOM MAX MIN NOM MAX
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