SN10KHT5542, SN10KHT5543 OCTAL TTL-TO-ECL TRANSLAT.
Texas Instruments
SN10KHT5543 - Octal ECL-to-TTL Translator
SN10KHT5542, SN10KHT5543 OCTAL TTL-TO-ECL TRANSLATORS WITH OUTPUT ENABLE SDZS001A – D3136, AUGUST 1988 – REVISED DECEMBER 1988 PRODUCTION DATA inform.