What this 10-bit bus switch does on the board
The Renesas 74FST6800PGG is a 10-bit bus switch from the 74FST family. It contains ten independent single-pole single-throw switches (10 x 1:1) that connect or isolate digital or analog signals with very low on-resistance. This part is used for bus isolation, hot-swap backplane interfaces, and signal gating where minimal propagation delay and low capacitance are required.
Package and mounting — 24-TSSOP footprint
The 24-TSSOP package (0.173" body width, 4.40 mm) is a common fine-pitch SOIC variant. The 74FST6800PGG is specified for surface-mount assembly only. Board layout should follow the manufacturer's recommended land pattern for 24-TSSOP; no exposed pad is present.
Lifecycle and supply posture
There is no official second-source or pin-compatible alternate listed in the 74FST series; the 74FST6800PGG is the specific 10-bit variant in the 24-TSSOP package.