FM3540/60 4/5 Bit Multiplexed, 1 Bit Latched Port .
FM3540SM14 - 4/5 Bit Multiplexed/ 1 Bit Latched Port with Standard 2-Wire Bus Interface and Non-Volatile Latches
FM3540SMT14 - 4/5 Bit Multiplexed/ 1 Bit Latched Port with Standard 2-Wire Bus Interface and Non-Volatile Latches
FM3540CMT14 - 4/5 Bit Multiplexed/ 1 Bit Latched Port with Standard 2-Wire Bus Interface and Non-Volatile Latches
FM3540 - 4/5 Bit Multiplexed/ 1 Bit Latched Port with Standard 2-Wire Bus Interface and Non-Volatile Latches
FM3540CM14 - 4/5 Bit Multiplexed/ 1 Bit Latched Port with Standard 2-Wire Bus Interface and Non-Volatile Latches