SN74LS126ADR

The SN74LS126ADR from Texas Instruments is a quadruple bus buffer IC designed for digital logic applications. This component features four independent non-inverting buffer channels, each with a 3-state output. The device operates within a supply voltage range of 4.75V to 5.25V, making it compatible with standard TTL logic levels.

Key electrical characteristics include a maximum output current of 2.6mA and a supply current of up to 22mA. The outputs are 3-state, meaning they can be actively driven high or low, or placed in a high-impedance state, which is crucial for bus-oriented systems. The buffer offers high-speed operation with propagation delays typically between 10ns and 50ns.

Packaged in a 14-SOIC form factor, the SN74LS126ADR is designed for surface mounting. Its operating temperature range is from 0°C to 70°C (TA). The 3-state outputs, when disabled, present a high-impedance state, preventing them from loading the bus. This feature allows multiple devices to share a common bus line without interference when not actively transmitting.

This buffer is suitable for various digital interface and data transmission tasks where signal buffering and bus control are required. Its design facilitates driving heavily loaded bus lines without the need for external pullup resistors.