M74HC540 is an advanced high-speed CMOS OCTAL BUS BUFFER (3-STATE) fabricated with silicon C2MOS technology.
The STMicroelectronics M74HC540 is an advanced high-speed CMOS octal bus buffer with 3-state inverting outputs. The 3-state control gate operates as a two-input AND, and if either G1 or G2 is high, all eight outputs enter the high impedance state. The datasheet gives pin connections and IEC logic symbols, pin descriptions, and a truth table.
Electrical information includes absolute maximum ratings, recommended operating conditions, DC specifications, AC electrical characteristics, and capacitive characteristics, along with test circuits and waveforms. The document also provides order codes and mechanical data for Plastic DIP-20, SO-20, and TSSOP20 packages.
| Operating supply voltage range | 2 V to 6 V |
|---|---|
| Typical propagation delay | 9 ns at VCC = 6 V |
| Maximum quiescent supply current | 4 µA at TA = 25 °C |
| Minimum symmetrical output current | |IOH| = IOL = 6 mA |
| DC output current | ±35 mA |
| Storage temperature range | -65 °C to +150 °C |
| Operating temperature range | -55 °C to 125 °C |
The 74HC540 is an advanced high-speed CMOS octal bus buffer with 3-state outputs.
If either G1 or G2 is high, all eight outputs are in the high impedance state.
The operating supply voltage range is 2 V to 6 V.
The typical propagation delay is 9 ns at VCC = 6 V.