www.ct-micro.com CT451 Series DC Input 4-Pin Mini.
CD54HCT4516 - High-Speed CMOS Logic
74HCT4514D - 4-to-16 line decoder/demultiplexer
74HCT4516 - Binary up/down counter
CT451 - High BVceo Phototransistor Optocoupler
74HCT4515 - 4-to-16 line decoder/demultiplexer
74HCT4518 - Dual synchronous BCD counter
74HCT4514 - 4-to-16 line decoder/demultiplexer
ACT4513 - Step-Down DC/DC Converter
ACT4515 - Step-Down DC/DC Converter
74HCT4511D - BCD to 7-segment latch/decoder/driver
74HCT4511 - BCD to 7-segment latch/decoder/driver
ACT4513 - Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
ACT4514SH-T - Step-Down DC/DC Converter
ACT4515SH-T - Step-Down DC/DC Converter
PC74HCT4518 - (It is accurate) Dual Synchronous BCD Counter
ACT4514 - Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
ACT4515 - Wide-Input Sensorless CC/CV Step-Down DC/DC Converter