GND

Logic

Input

Output

VCC

Device

-IIK

-IOK

12

SN74LVC1G79

SCES220U – APRIL 1999 – REVISED APRIL 2017

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Feature Description (continued)

8.3.3 Clamp Diodes

The inputs and outputs to this device have negative clamping diodes.

CAUTION

Voltages beyond the values specified in the Absolute Maximum Ratings table can

cause damage to the device. The input negative-voltage and output voltage ratings

may be exceeded if the input and output clamp-current ratings are observed.

Figure 6. Electrical Placement of Clamping Diodes for Each Input and Output

8.3.4 Partial Power Down (Ioff)

The inputs and outputs for this device enter a high impedance state when the supply voltage is 0 V. The

maximum leakage into or out of any input or output pin on the device is specified by Ioff in the Electrical

Characteristics.

8.3.5 Over-Voltage Tolerant Inputs

Input signals to this device can be driven above the supply voltage so long as they remain below the maximum

input voltage value specified in the Absolute Maximum Ratings.

8.4 Device Functional Modes

Table 1 lists the functional modes of SN74LVC1G79.

Table 1. Function Table

INPUTS

OUTPUT

Y

CLK

D

↑

H

H

↑

L

L

L

X

Q0