Wireline Buffers Renesas Electronics Wireline Buffers feature a broad portfolio of high-performance buffers. These devices are well-suited for various applications and ideal for wireline communications. The 8P79xx series is designed to support 1PPS signals for synchronization and distribution applications. The 8L30xx offers up to 10 outputs in a 5x5 package with a typical additive jitter of 24fs.