The MC74LCX540 is a low‑voltage CMOS inverting octal buffer with 5 V‑tolerant inputs and ±24 mA output drive.
The MC74LCX540 octal buffer operates from a 2.3 V to 3.6 V supply and features 5 V‑tolerant inputs, balanced 24 mA source/sink capability, and low static supply current. It is suited for memory address driving and TTL‑level bus applications.
The data sheet provides detailed electrical characteristics, pin‑out diagrams, package dimensions for SOIC‑20 and TSSOP‑20, and ordering information. It also includes maximum ratings, propagation delays, and capacitive parameters for designers.
| Supply Voltage Range | 2.3 V – 3.6 V |
|---|---|
| Input Voltage Tolerance | 5 V tolerant |
| Output Current (source/sink) | ±24 mA |
| High‑Level Output Current (VCC = 3.0 V‑3.6 V) | -24 mA |
| Low‑Level Output Current (VCC = 3.0 V‑3.6 V) | 24 mA |
| Package Types | SOIC‑20, TSSOP‑20 |
It operates from 2.3 V to 3.6 V.
The device can source or sink up to ±24 mA balanced output current.
Yes, the inputs are 5 V tolerant.