74ALS109A 데이터 시트보기 (PDF) - Philips Electronics
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74ALS109A Datasheet PDF : 9 Pages
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Philips Semiconductors
Dual J-K positive edge triggered flip-flop
with set and reset
Product specification
74ALS109A
LOGIC DIAGRAM
SD 5, 11
RD 1, 15
4, 12
CP
2, 14
J
3, 13
K
VCC = Pin 16
GND = Pin 8
6, 10 Q
7, 9 Q
SC00042
FUNCTION TABLE
INPUTS
SD RD CP J
OUTPUTS
KQQ
OPERATING
MODE
L H X X X H L Asynchronous set
H L X X X L H Asynchronous reset
L L X X X H* H* Undetermined*
H H ↑ h l q q Toggle
HH↑
l
l
L H Load “0”
H H ↑ h h H L Load “1”
H H ↑ l h q q Hold “no change”
H H L l h q q Hold “no change”
H = High voltage level
h = High state must be present one setup time prior to
Low-to-High clock transition
L = Low voltage level
l = Low state must be present one setup time prior to
Low-to-High clock transition
q = Lower case indicate the state of the referenced output prior to
the Low-to-High clock transition
X = Don’t care
↑ = Low-to-High clock transition
* = The output levels in this configuration are not guaranteed to
meet the minimum levels for VOH if the set and reset are near
VIN maximum. Furthermore, this configuration is nonstable;
that is, it will not remain when either set or reset returns to its
inactive (High) level.
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
SYMBOL
PARAMETER
VCC
Supply voltage
VIN
Input voltage
IIN
Input current
VOUT
IOUT
Tamb
Tstg
Voltage applied to output in high output state
Current applied to output in Low output state
Operating free-air temperature range
Storage temperature range
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
–0.5 to VCC
16
0 to +70
–65 to +150
UNIT
V
V
mA
V
mA
°C
°C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
VCC
VIH
VIL
IIk
IOH
IOL
Tamb
Supply voltage
High-level input voltage
Low-level input voltage
Input clamp current
High-level output current
Low-level output current
Operating free-air temperature range
LIMITS
MIN
NOM
MAX
4.5
5.0
5.5
2.0
0.8
–18
–0.4
8
0
+70
UNIT
V
V
V
mA
mA
mA
°C
1991 Feb 08
3
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