CD54HC157, CD54HCT157, CD54HC158, CD54HCT158 are quad 2-input multiplexers which select four bits of data from two sources under the control of a common Select input (S).
The CD54/74HC157, CD54/74HCT157, CD54/74HC158, and CD54/74HCT158 are quad 2‑input multiplexers. The 157 variants are non‑inverting, while the 158 variants are inverting. They provide common select inputs, separate enable inputs, and are compatible with LSTTL logic levels.
Key specifications include a wide operating temperature range of -55 °C to 125 °C, supply voltage ranges of 2 V‑6 V for HC types and 4.5 V‑5.5 V for HCT types, and typical propagation delays of 125‑155 ns (HC) or 135‑170 ns (HCT) at a 50 pF load. Ordering information, package options (PDIP, SOIC, CERDIP), and handling cautions are also provided.
| Operating Temperature Range | -55 °C to 125 °C |
|---|---|
| Supply Voltage (HC Types) | 2 V to 6 V |
| Supply Voltage (HCT Types) | 4.5 V to 5.5 V |
| Typical Propagation Delay (HC) | 125 ns – 155 ns |
The devices operate from -55 °C to 125 °C.
The HC type supports a supply voltage of 2 V to 6 V.
Typical propagation delay for the HC type is between 125 ns and 155 ns.