74AC157SJX

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74AC157SJX is a quad 2-input multiplexer housed in a 16-lead Small Outline Package (SOP). It operates within a supply voltage range of 2.0V to 6.0V and supports an operating temperature from -40°C to +85°C. Propagation delays are specified at 6.5 ns maximum at 5.0V for input-to-output transitions, with output drive capabilities of 24 mA source/sink current.

Signal Switches, Multiplexers, Decoders Feature Summary

• Quad configuration enabling selection of four bits of data from two sources using common Select and Enable inputs.
• Outputs present selected data in true noninverted form.
• Capable of functioning as a function generator for implementing gating functions.

Signal Switches, Multiplexers, Decoders Applications

• Moving data between two groups of registers to common output busses.
• Implementing gating functions via logic equations.
• General digital signal routing in high-speed circuits.

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific SOP package variant against the M16D designation. Confirm that the 'X' suffix corresponds to tape and reel packaging requirements if applicable. Ensure the design utilizes AC logic levels rather than ACT TTL-compatible inputs, as this part lacks those specific thresholds.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a quad multiplexer with standard AC logic performance is required. The SOP package suits applications needing a wider body than SOIC but compatible with standard footprints. Verify that the 24 mA output drive meets load requirements without external buffering.

Signal Switches, Multiplexers, Decoders Part Context

This device belongs to the 74AC157 series of quad multiplexers originally developed by Fairchild Semiconductor. The SJX designation indicates the Small Outline Package (SOP) form factor with specific trailing characters denoting packaging or revision details defined by the manufacturer's ordering codes.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Cross-reference with 74AC157SC for SOIC packages or 74AC157MTC for TSSOP packages if pinout compatibility is maintained. Verify electrical characteristics match AC specifications rather than ACT TTL levels.