NTE9601 Integrated Circuit TTL - Retriggerable Monostable Multivibrator Description: The NTE9601 is a retriggerable one-shot in a 14-Lead DIP type package that provides the designer with four inputs; two active high and two active low. This permits a choice of either leading-edge or trailing-edge triggering, independent of input transition times. When input conditions for triggering are met, a new cycle starts and the external capacitor is rapidly discharged and then allowed to charge again. The retriggerable feature allows for output pulse widths to be expanded. In fact a continuous true output can be maintained by having an input cycle time which is shorter than the output cycle time. Retriggering may be inhibited by tying the Q output to an active low input. Features: D High Speed Operation - Input Repetition Rate > 10MHz D Flexibility of Operation - Optional Retriggering/Lock-Out Capacity D Output Pulse Width Range - 50ns to ∞ D Leading or Trailing Edge Triggering D Complementary Outputs/Inputs D Input Clamping Diodes D DTL/TTL Compatible Logic Levels Absolute Maximum Ratings: (Note 1) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65° to +150°C Note 1. The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the “Electrical Characteristics” table are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the condi‐ tions for actual device operation. Recommended Operating Conditions: Parameter Symbol Supply Voltage VCC High Level Input Voltage VIH Low Level Input Voltage VIL Test Conditions Min Typ Max Unit 4.75 5.00 5.25 V TA = 0°C 1.9 - - V TA = +25°C 1.8 - - V TA = +75°C 1.6 - - V TA = 0°C - - 0.85 V TA = +25°C - - 0.85 V TA = +75°C - - 0.85 V High Level Output Current IOH - - -0.96 mA Low Level Output Current IOL - - 12.8 mA Free Air Ambient Temperature TA 0 - +75 °C Electrical Characteristics: (TA = 0° to +70°C, Note 2, Note 4 unless otherwise specified) Parameter Symbol Input Clamp Voltage VI Test Conditions Min Typ Max Unit - - -1.5 V 2.4 - - V - - 0.45 V VCC = Min, II = -12mA High Level Output Voltage VOH Low Level Output Voltage VOL High Level Input Current IIH VCC = Max, VI = 4.5V - - 60 μA Low Level Input Current IIL VCC = Max, VIN = 0.45V - - -1.6 mA Short Circuit Output Current IOS VCC = Max, Note 3, Note 5 -10 - -40 mA Supply Current ICC VCC = Max - - 25 mA Note Note Note Note 2. 3. 4. 5. VCC = Min, IOH = Max, VIL = Max, VIH = Min, Note 5 All typical ratings are at VCC = 5V, TA = +25°C. Not more than one output should be shorted at a time. Unless otherwise noted, 10kΩ resistor placed between Pin13 and VCC, for all tests. GND Pin11 for VOL test on Pin6, VOH and IOS test on Pin8. Open Pin11 for VOL test on Pin8, VOH and IOS test on Pin6. Switching Characteristics: (VCC = 5V, TA = +25°C unless otherwise specified) Parameter Symbol From (Input) To (Output) Propagation Delay Time Low to High Level Output tPLH Negative Trigger Input to True Output Propagation Delay Time High to Low Level Output tPHL Negative Trigger Input to Complement Output Minimum True Output Pulse Width Pulse Width Maximum Allowable Wiring Capacitance External Timing Reststor tPW(MIN) tPW CSTRAY RX Test Conditions CL = 15pF, CX = 0, RX = 5kΩ RX = 10kΩ, CX = 1000pF Pin13 to GND Min Max Unit - 40 ns - 40 ns - 65 ns 3.08 3.76 μs - 50 pF - 25 kΩ Function Table: Inputs H L X ↑ ↓ Outputs A1 A2 B1 B2 Q Q H H X X L H X X L X L H X X X L L H L X H H L H L X ↑ H L X H ↑ X L H H L H X L ↑ H X L H ↑ H ↓ H H ↓ ↓ H H ↓ H H H = HIGH Logic Level = LOW Logic Level = Either LOW or HIGH Logic Level = LOW to HIGH Level Transition = HIGH to LOW Level Transition = Positive Pulse = Negative Pulse Pin Connection Diagram A1 1 14 VCC A2 2 13 RX B1 3 12 N.C. B2 4 11 CX N.C. 5 10 N.C. Q 6 9 N.C. GND 7 8 Q 14 8 1 7 .785 (19.95) Max .300 (7.62) .200 (5.08) Max .100 (2.45) .600 (15.24) .099 (2.5) Min