SCLS181H December 1982 – August 2021 SN54HC00 , SN74HC00
PRODUCTION DATA
The inputs and outputs to this device have both positive and negative clamping diodes as depicted in Figure 8-1.
Voltages beyond the values specified in the Absolute Maximum Ratings table can cause damage to the device. The input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed.