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TECHNICAL DATA
KK74123
Dual Monostable Multivibrator with Clear
The KK74123 multivibrator feature d-c triggering from gated lowlevel-active (A) and high-level-active (B) inputs, and also provide overriding direct clear inputs. Complementary outputs are provided. The retrigger capability simplifies the output pulse is terminated, the output pulse may be extended. The overriding clear capability permits any output pulse to be terminated at a predetermined time independently of the timing components R and C. Figure 1 illustrates triggering the one-shot with the high-level-active (B) inputs.
ORDERING INFORMATION KK74123N Plastic
LOGIC DIAGRAM
TA = -10 to 70 C for package
PIN ASSIGNMENT
Pin 16 = VCC Pin 8 = GND
FUNCTION TABLE
Inputs Clear L X X H H L X = don't care A X H X L H H B X X L Outputs Q L L L Q H H H
Timing Component Connections when CEXT 1000 pF
Timing Component Connections when CEXT > 1000 pF and Clear is used
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KK74123
MAXIMUM RATINGS*
Symbol VCC VIN Tstg
*
Parameter Supply Voltage Input Voltage Storage Temperature Range
Value 6.0 -0.5 to 6.0 -65 to +150
Unit V V C
Maximum Ratings are those values beyond which damage to the device may accur.
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VIH VIL IOL IOH REXT CEXT REXT/CEXT TA tW Supply Voltage High Level Input Voltage Low Level Input Voltage Low Level Output Current High Level Output Current External Timing Resistance External Capacitance Wiring Capacitance at REXT/CEXT Terminale Operating Temperature Pulse Width A or B inputs high A or B inputs low Clear low -10 40 40 40 5.0 Parameter Min 4.75 2.0 0.8 16 -0.8 50 50 +70 50 50 50 No Restriction pF C ns Max 5.25 Unit V V V mA mA k
DC ELECTRICAL CHARACTERISTICS (TA=+25C)
Symbol VIK VOH VOL IIH II IIL IOS Parameter Input Clamp Voltage High-Level Output Voltage Low-Level Output Voltage High Level Input Current Input Current at Maximum Input Voltage Low Level Input Current Short Circuit Current One Output Shorted at a Time Supply Current Test Conditions VCC=min, IIN=-12 mA VCC=min, IOH=-0.8 mA VIL=0.8 V, VIH=2.0 V VCC=min, IOL=16 mA VIL=0.8 V, VIH=2.0 V VCC=max, VIN=2.4V A, B inputs Clear input 2.4 3.5 0.3 0.4 40 80 1.0 -1.6 -3.2 -10 -40 mA mA mA Guaranteed Limit Min Typ Max -1.5 V V V A Unit
VCC=max, VIN=5.5 V VCC=max, VIN=0.4V A, B inputs Clear input
VCC=max, VO=0 V
ICC
VCC=max
47
66
mA
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KK74123
AC ELECTRICAL CHARACTERISTICS (VCC=5.0 V, TA=+25C, Input tr=tf=6.0 ns)
Symbol tPLH tPHL tPLH tPHL tPLH tPHL tWQmin tWQ Parameter Propagation Delay, A to Q Propagation Delay, A to Q Propagation Delay, B to Q Propagation Delay, B to Q Propagation Delay, Clear to Q Propagation Delay, Clear to Q Pulse Width, A or B to Q Pulse Width, A or B to Q CEXT=1000 pF, REXT=10 k, RL=390 ,CL=15 pF 2.76 CEXT=0, REXT=5.1 k, CL=15 pF,RL=390 Test Conditions Guaranteed Limit Min Typ 32 30 19 27 30 18 45 3.2 Max 33 40 28 36 40 27 65 3.37 ns ns ns ns ns ns ns s Unit
NOTE: Retrigger pulse must not start before 0.22 CEXT (in picofarads) nonoseconds after previous trigger pulse. Figure 1. Typical Input/Output Pulses
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KK74123
Figure 2. Switching Waveforms
Figure 3. Switching Waveforms
NOTES A. CL includes probe and jig capacitance. B. All diodes are 1N916 or 1N3064/ Figure 4. Test Circuit
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KK74123
N SUFFIX PLASTIC (MS - 001BB)
A 16 9 B 1 8
F
L
C -T- SEATING
PLANE
N G D 0.25 (0.010) M T K M H J
Dimensions, mm Symbol A B C 1. . D F G H J K L M N 0 2.92 7.62 0.20 0.38 0.36 1.14 2.54 7.62 10 3.81 8.26 0.36 NOTES: Dimensions "A", "B" do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side MIN 18.67 6.10 MAX 19.69 7.11 5.33 0.56 1.78
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