The 74LCX138 is a high-speed 1-of-8 decoder/demultiplexer fabricated with advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation. This device is ideally suited for high-speed memory chip select address decoding and supports 2.3V to 3.6V VCC specifications.
The document describes the 74LCX138, a high-speed 1-of-8 decoder/demultiplexer fabricated with advanced CMOS technology. It is designed for high-speed memory chip select address decoding and features patented noise/EMI reduction circuitry.
The device accepts three binary weighted inputs to provide eight mutually exclusive active-LOW outputs when enabled. It supports supply voltages from 2.3V to 3.6V and includes 5V tolerant inputs. The datasheet provides absolute maximum ratings, recommended operating conditions, DC and AC electrical characteristics, timing waveforms, and physical dimensions for various packages including SOIC, SOP, TSSOP, and DQFN.
| Supply Voltage (Operating) | 2.3V to 3.6V |
|---|---|
| Propagation Delay (Max) | 6.0ns |
| Output Drive Current (Max) | +24 mA |
| ESD Performance (Human Body Model) | > 2000V |
| Latch-up Performance | Exceeds 500 mA |
It is a high-speed 1-of-8 decoder/demultiplexer ideally suited for memory chip select address decoding.
Yes, the device features 5V tolerant inputs.