74F258APC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74F258APC is a quad 2-input multiplexer with 3-STATE outputs. It selects four bits of data from two sources using a common Select input (S). When S is LOW, I0x inputs are selected; when HIGH, I1x inputs are selected. Outputs present data in inverted form. The Output Enable (OE) input switches outputs to high impedance when HIGH. Operating voltage ranges from +4.5V to +5.5V. Propagation delay is typically 5.3 ns at VCC = 5.0V and TA = +25°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Quad 2-input multiplexer architecture
• Inverting 3-STATE outputs
• Common data select input for four-bit selection

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented system interfacing
• Multiplexer expansion by tying outputs together
• Logic implementation of 4-pole, 2-position switch

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the package type carefully as datasheets list SOIC (M16A), while some distributors may reference PDIP variants. Confirm RoHS compliance status directly with the manufacturer or authorized distributor, as legacy documentation may not reflect current environmental declarations. Ensure the specific ordering suffix matches your required packaging format before finalizing procurement orders.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when designing circuits requiring four independent 2-to-1 multiplexing functions with bus-compatible outputs. The 3-STATE feature allows direct connection to shared buses without external tri-state buffers. Consider the inverting output characteristic during logic design to ensure correct signal polarity. Verify that the propagation delay specifications meet the timing requirements of your target application frequency.

Signal Switches, Multiplexers, Decoders Part Context

This device belongs to the 74F series of logic integrated circuits, known for high-speed performance within the standard TTL voltage range. It implements the functional equivalent of the Fairchild Semiconductor 74F258A. The component is designed for general-purpose digital logic applications where multiple data sources need to be routed to a common destination under control signals.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Check for pin-compatible alternatives such as the SN74F258 from Texas Instruments. Verify electrical characteristics and package dimensions match your existing PCB layout. Ensure the replacement part supports the same 3-STATE output functionality and operating voltage range.