54LS113FMQB, J-K flip-flop, LS family, Bulk shipping form, active lifecycle.
| Parameter | Value |
|---|---|
| Series | * |
| Package | Bulk |
The 54LS113FMQB is a J-K flip-flop from the 54LS low-power Schottky logic family. It performs the standard J-K flip-flop function with preset and clear inputs.
For high-volume pick-and-place, a tube-to-reel transfer step is needed. For prototyping, repair, or low-volume builds, Bulk is often more convenient and avoids minimum reel quantities.
The evidence does not list an official direct replacement or second-source cross-reference for the 54LS113FMQB. For a functional equivalent, the SNJ54AS74J is a J-K flip-flop in the AS family, but it is not pin- or function-identical — verify your logic-level and timing requirements before substituting.
The 54LS113FMQB is the military-temperature-grade version (-55 to 125 °C) of the standard 74LS113 commercial part (0 to 70 °C). The 54LS prefix also implies tighter process control and screening for high-reliability applications. Functionally they are identical J-K flip-flops, but the 54LS variant is the one to use when the operating environment demands the extended temperature range.