CD40106BNSR

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1. Description

The CD40106BNSR device consists of six Schmitt-Trigger inputs. Each circuit functions as an inverter with Schmitt-Trigger input. The trigger switches at different points for positive- and negative-going signals. The difference between the positive-going voltage (VP) and the negative-going voltages (VN) is defined as hysteresis voltage (VH). The CD40106B device is supplied in ceramic packaging (J) as well as standard packaging (D, N, NS, PW). All CD40106B devices are rated for –55°C to +125°C ambient temperature operation.

2. Features

    1. Schmitt-Trigger Inputs

    2. Hysteresis Voltage (Typical):

        – 0.9 V at VDD = 5 V

        – 2.3 V at VDD = 10 V

        – 3.5 V at VDD = 15 V

    3. Noise Immunity Greater Than 50%

    4. No Limit On Input Rise and Fall Times

    5. Standardized, Symmetrical Output Characteristics

    6. For Quiescent Current at 20 V

    7. Maximum Input Current Of 1 µA at 18 V Over Full Package Temperature Range:

        – 100 nA at 18 V and 25°C

    8. Low VDD and VSS Current During Slow Input Ramp

    9. 5-V, 10-V, and 15-V Parametric Ratings

3. Applications

    1. Wave and Pulse Shapers

    2. High-Noise-Environment Systems

    3. Monostable Multivibrators

    4. Astable Multivibrators

4. Pin Configuration

5. Pin Functions

6. Feature Description

    The CD40106BNSR has standardized symmetrical output characteristics and a wide operating voltage from 3 V to 18 V with quiescent current of 20 µA tested at 20 V. These devices have transition times of tTLH = tTHL = 50 ns (typical) at 10 V. The operating temperature is from –55°C to +125°C. Schmitt trigger inputs on this device support slow or noisy input signals.

7. Power Supply Recommendations

     The power supply can be any voltage between the minimum and maximum supply voltage rating located in the Recommended Operating Conditions. The VCC terminal must have a good bypass capacitor to prevent power disturbance. A 0.1-µF capacitor is recommended to be used on the VCC terminal, and it must be placed as close as possible to the pin for best results.

8. Layout Guidelines

     When using multiple bit logic devices, inputs must never float. In many cases, functions or parts of functions of digital logic devices are unused, for example, when only two inputs of a triple-input AND gate are used or only three of the four buffer gates are used. Such inputs must not be left unconnected because the undefined voltages at the outside connections result in undefined operational states. All unused inputs of digital logic devices must be connected to a high or low bias to prevent them from floating. The logic level that must be applied to any particular unused input depends on the function of the device. Generally they are tied to GND or VCC, whichever makes more sense or is more convenient. Floating outputs are generally acceptable, unless the part is a transceiver.

9. Application Information

     The CD40106B device is a Schmitt-Trigger input device that can be used for a multitude of inverting buffer type functions.