ZHCSOD0 June 2020 CD54HCT30 , CD74HCT30
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 Section 6.1 table can cause damage to the device. The recommended input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed.