logic gate
74AHC1G125
https://www.diodes.com/assets/Datasheets/74AHC1G125.pdf
| OE | A | Y |
|---|---|---|
| L | H | H |
| L | L | L |
| H | X | Z |
The output enters a high impedance state when a HIGH-level is applied to the output enable (OE) pin.
NAND
NC7SZ00
The NC7SZ00 is a single two−input NAND gate from onsemi’s Ultra−High Speed (UHS) series of TinyLogic.
NAND gate use logic-gate-dat
LM temperature Limit ALRAM (NAND_A)
- GPIO12 (NAND_B either gate )
- Manual switch (NAND_B either gate )
| A =temp. alarm | B = IO12 or switch | out |
|---|---|---|
| L | L | H |
| L | H | H |
| H | L | H |
| H | H | L |