some of the chips used in the TASCAM US-144

(pictures here)
ATMEGA162

16-Kbyte self-programming Flash Program Memory, 1-Kbyte SRAM, 512 Byte EEPROM, JTAG interface for on-chip-debug

ISP1583BS

Hi-Speed Universal Serial Bus Peripheral Controller

74HCT4353D

Triple 2-channel analog multiplexer/demultiplexer with latch

LV166A

8-Bit Parallel-load Shift Registers

AK4114VO

192kHz 24-Bit DIR with 8:1 Selector & DIT