LogiSwitch LS119-S

LS119-S applies the LS100 family's adaptive contact-bounce rejection to six normally open switches. Each normally low output/handshake pin reports a debounced event and can accept a host acknowledgement pulse. Handshake lets firmware complete a serviced switch cycle without continuously polling for release.

The exact LS119-S ordering code denotes a 14-pin narrow SOIC, 150 mil wide. The LCDChip package registry calls this outline 14-SOIC. It is surface-mount and is not footprint-compatible with the 300 mil PDIP LS119-P.

Layout checks

• Use the manufacturer's controlled mechanical dimensions for the land pattern.
• Verify pin 1 and the package orientation before routing supply and switches.
• Keep the SOIC footprint distinct from the PDIP variant.

The registered local 14-SOIC JPG is not yet available. The expected image path is reserved pending artwork; do not release a PCB from this illustration.

The LS119 pin-description table in the LogiSwitch LS100 Series IC User's Guide lists the following functions. The guide repeats “SW0” as the pin name for pins 5–7 while describing their functions as switch inputs 3–5; obtain manufacturer clarification before assigning final net names.

Do not infer a released schematic netlist solely from the repeated names in the guide.

The manufacturer's guide shows another temperature context in its electrical table. Confirm the applicable limits and the pin-name discrepancy with LogiSwitch before qualification.

LS119-P is the manufacturer-listed six-channel LS119 PDIP member, but its 300 mil through-hole footprint differs from the 14-SOIC LS119-S. Compare mechanical and assembly requirements before considering it. LS19-S has a 14-SOIC outline but belongs to the LS10 family without the LS100 handshake behavior; check electrical interface, firmware and timing. Neither is a confirmed drop-in replacement.

LogiSwitch lists LS119-S as the six-channel SOIC member of its LS100 NoBounce family with handshake. The LS100 Series IC User's Guide provides the package, pin functions and electrical data summarized here. Ask the manufacturer to clarify pins 5–7 before design release.

Verify the exact LS119-S order code, package marking, supplier traceability and pin-1 indication on receipt. Confirm the 14-SOIC body and document revision before assembly; obtain lot records from the actual supplier where required.

This summary does not replace the current manufacturer guide. Resolve the pins 5–7 naming discrepancy with LogiSwitch, confirm operating limits and timing, and validate the exact mechanical drawing before design release or substitution.