74F109 Просмотр технического описания (PDF) - Philips Electronics
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74F109 Datasheet PDF : 10 Pages
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Philips Semiconductors
Postive J-K positive edge-triggered flip-flops
Product specification
74F109
LOGIC DIAGRAM
Q 7, 9
3, 13
K
2, 14
J
4, 12
CP
5, 11
SD
1, 15
RD
VCC = Pin 16
GND = Pin 8
6, 10
Q
SF00138
FUNCTION TABLE
INPUTS
SD RD CP J
OUTPUTS
OPERATING MODE
KQQ
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 ↑ X X q q Hold
H H ↑ h l q q Toggle
H H ↑ h h H L Load ”1” (set)
HH↑
l
l
L H Load ”0” (reset)
H H ↑ l h q q Hold ’no change”
NOTES:
H = High-voltage level
h = High-voltage level one setup time prior to low-to-high
clock transition
L = Low-voltage level
l = Low-voltage level 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
↑ = Not low-to-high clock transition
* = Both outputs will be high if both SD and RD go low
simultaneously
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
RATING
UNIT
VCC
VIN
IIN
VOUT
IOUT
Tamb
Supply voltage
Input voltage
Input current
Voltage applied to output in High output state
Current applied to output in Low output state
Operating free-air temperature range
–0.5 to +7.0
V
–0.5 to +7.0
V
–30 to +5
mA
–0.5 to VCC
V
40
mA
Commercial range
0 to +70
°C
Industrial range
–40 to +85
°C
Tstg
Storage temperature range
–65 to +150
°C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
VCC
Supply voltage
VIN
High-level input voltage
VIL
Low-level input voltage
IIK
Input clamp current
IOH
High-level output current
IOL
Low-level output current
Tamb
Operating free-air temperature range
Commercial range
Industrial range
LIMITS
MIN
NOM
MAX
4.5
5.0
5.5
2.0
0.8
–18
–1
20
0
+70
–40
+85
UNIT
V
V
V
mA
mA
mA
°C
°C
October 23, 1990
3
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