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9

SN74HCS05

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SCLS797 – JUNE 2020

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9 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

9.1 Application Information

In this application, the device is used to drive an indicator LED directly. Unused channels should have the inputs

9.2 Typical Application

Figure 8. Typical application block diagram

9.2.1 Design Requirements

9.2.1.1 Power Considerations

Ensure the desired supply voltage is within the range specified in the Recommended Operating Conditions. The

supply voltage sets the device's electrical characteristics as described in the Electrical Characteristics.

The ground must be capable of sinking current equal to the total current to be sunk by all outputs of the

sink as much current as is provided by the external pull-up resistor or other supply source. Be sure not to exceed

the maximum total current through GND listed in the Absolute Maximum Ratings.

Total power consumption can be calculated using the information provided in CMOS Power Consumption and

Cpd Calculation.

Thermal increase can be calculated using the information provided in Thermal Characteristics of Standard Linear

and Logic (SLL) Packages and Devices.

CAUTION

is an additional limitation to prevent damage to the device. Do not violate any values

listed in the Absolute Maximum Ratings. These limits are provided to prevent damage

to the device.

9.2.1.2 Input Considerations

not exceed the maximum input voltage range found in the Absolute Maximum Ratings.