CALIFORNIA WARNING: This product can expose you to chemicals, including lead and DEHP, which are known to the State of California to cause cancer and birth defects, or other reproductive harm. For more information, go to https://www.p65warnings.ca.gov.
8 pin DIP dual 16-bit DAC economy version Japan multiplex input format
TDA1543A is Japanese time multiplexed input format. Regular TDA1543 (no 'A' suffix) is an I2S input format. The TDA1543A is NOT a suitable substitute for TDA1543.
Reference:
TDA1543A