The ADV611 and ADV612 are a low cost, single chip, dedicated function, all digital CMOS VLSI devices capable of supporting visually loss-less to 7500:1 real-time compression and decompression of CCIR- 601 digital video at very high image quality levels. The chips integrate glueless video and host interfaces with on-chip SRAM to permit low part count, system level implementations suitable for a broad range of applications. The ADV611 and ADV612 are 100% bitstream compatible with the ADV601.