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 Outputs Clear A B Q Q L X X L H X H X L H X X L L H H L H H L H X = don’t care Timing Component Connections when CEXT ≤ 1000 pF Timing Component Connections when CEXT > 1000 pF and Clear is used 1 KK74123 MAXIMUM RATINGS* Symbol Parameter Value Unit 6.0 V VCC Supply Voltage VIN Input Voltage -0.5 to 6.0 V Tstg Storage Temperature Range -65 to +150 °C * Maximum Ratings are those values beyond which damage to the device may accur. RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min Max Unit 5.25 V VCC Supply Voltage 4.75 VIH High Level Input Voltage 2.0 VIL Low Level Input Voltage 0.8 V IOL Low Level Output Current 16 mA IOH High Level Output Current -0.8 mA REXT External Timing Resistance 5.0 50 kΩ CEXT External Capacitance No Restriction REXT/CEXT V Wiring Capacitance at REXT/CEXT Terminale TA Operating Temperature tW Pulse Width 50 pF -10 +70 °C A or B inputs high 40 50 ns A or B inputs low 40 50 Clear low 40 50 DC ELECTRICAL CHARACTERISTICS (TA=+25°C) Symbol Parameter Test Conditions Guaranteed Limit Min Typ Unit Max VIK Input Clamp Voltage VCC=min, IIN=-12 mA -1.5 VOH High-Level Output Voltage VCC=min, IOH=-0.8 mA VIL=0.8 V, VIH=2.0 V VOL Low-Level Output Voltage VCC=min, IOL=16 mA VIL=0.8 V, VIH=2.0 V IIH High Level Input VCC=max, Current VIN=2.4V II Input Current at Maximum Input Voltage VCC=max, VIN=5.5 V 1.0 mA IIL Low Level Input VCC=max, A, B inputs -1.6 mA Current VIN=0.4V Clear input -3.2 IOS Short Circuit Current One Output Shorted at a Time VCC=max, VO=0 V ICC Supply Current VCC=max 2.4 3.5 0.3 V V 0.4 V A, B inputs 40 µA Clear input 80 -10 47 -40 mA 66 mA 2 KK74123 AC ELECTRICAL CHARACTERISTICS (VCC=5.0 V, TA=+25°C, Input tr=tf=6.0 ns) Symbol Parameter Test Conditions Guaranteed Limit Min Typ Max Unit tPLH Propagation Delay, A to Q 32 33 ns tPHL Propagation Delay, A to Q 30 40 ns tPLH Propagation Delay, B to Q CEXT=0, REXT=5.1 kΩ, 19 28 ns tPHL Propagation Delay, B to Q CL=15 pF,RL=390 Ω 27 36 ns tPLH Propagation Delay, Clear to Q 30 40 ns tPHL Propagation Delay, Clear to Q 18 27 ns tWQmin Pulse Width, A or B to Q 45 65 ns tWQ Pulse Width, A or B to Q 3.2 3.37 µs CEXT=1000 pF, REXT=10 kΩ, RL=390 Ω,CL=15 pF 2.76 NOTE: Retrigger pulse must not start before 0.22 CEXT (in picofarads) nonoseconds after previous trigger pulse. Figure 1. Typical Input/Output Pulses 3 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 4 KK74123 N SUFFIX PLASTIC (MS - 001BB) A 9 16 B 1 8 F L C -T- SEATING PLANE N G K D M H J 0.25 (0.010) M T Dimensions, mm Symbol MIN MAX A 18.67 19.69 B 6.10 7.11 C 1. . 5.33 D 0.36 0.56 F 1.14 1.78 G 2.54 H 7.62 J 0° 10° K 2.92 3.81 L 7.62 8.26 M 0.20 0.36 N 0.38 NOTES: Dimensions “A”, “B” do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side 5