TEXAS INSTRUMENTS CD4093BM 与非施密特触发, 2输入, 6.8 mA, 3V至15V, SOIC-14
The is a Quad 2-input NAND Schmitt Trigger, each circuit functions as a 2-input NAND gate with Schmitt-trigger action on both inputs. The gate switches at different points for positive and negative-going signals. The difference between the positive VTa and the negative voltage VTb is defined as hysteresis voltage VH. All outputs have equal source and sink currents and conform to standard B-series output drive.