Union Semiconductor Integrated Circuits



Union Semiconductor

Union Semiconductors' integrated circuits serve the digital world with system powering and controlling, signal amplifying, processing and interfacing, and integrated protection solutions. The products are represented in the following product lines:

Union Semiconductor's aggressive new product development, strict process and quality control, highly qualified applications support and satisfactory customer service have contributed to their rapid and stable business growth.

Union Parts in Applications:

Video Application




Union Semi Block Diagram 1 ESD Protection - UM5204 I/O - UM3085/491 ESD Protection - UM5204 ESD Protection - UM5204 Level Shifter - UM3302/4, UM3202/4 LDO - UM17512/18/33 Video Switch - UM330 DC/DC Converter - UM3501
Products available on SemiconductorStore:
ESD Protection:
Quad Channel Low C ESD Protector @5V
Interface:
±15kV ESD-Protected,Slew-Rate-Limited, High Speed and Failsafe RS485 Transceiver
±15kV ESD-Protected, Fail-Safe, Slew-Rate-Limited RS-422
Video Switch:
Quad, Wide-Bandwidth SPDT Video Analog Switch
Level Shifter:
2-Bit Bidirectional Voltage-Level Translator with Auto Direction sensing and ±15kV ESD Protec...
4-Bit Bidirectional Voltage-Level Translator with Auto Direction sensing and ±15kV ESD Protec...
2-Bit Bidirectional Voltage-Level Translator for Open-Drain and Push-Pull Application
Quad, Wide-Bandwidth SPDT Video Analog Switch
DC/DC Converter:
2.5V to 5V input, 600mA DC-DC Buck Converter
LDO Regulators:
300mA, Micropower, VLDO Linear Regulator
300mA, Micropower, VLDO Linear Regulator
300mA, Micropower, VLDO Linear Regulator
Check out Union Semiconductor’s cross reference guide
(TI, On Semi, Maxim, Fairchild, National, and more…)

Wireless POS Terminal Application

Union Semi Block Diagram 1 UM3204 UM3204 UM3204 UM3204

Products available on SemiconductorStore:
LDO Regulators:
300mA, Micropower, VLDO Linear Regulator
300mA, Micropower, VLDO Linear Regulator
300mA, Micropower, VLDO Linear Regulator
DC/DC Converter:
Low Power, Step-Up DC/DC Boost Converter
High Efficiency Low Noise PFM Step-Up DC/DC Boost Converter
2.5V to 5V input, 600mA DC-DC Buck Converter
Level Shifter:
4-Bit Bidirectional Voltage-Level Translator
4-Bit Bidirectional Voltage-Level Translator
Check out Union Semiconductor’s cross reference guide
(TI, On Semi, Maxim, Fairchild, National, and more…)

Handset Application - ESD Protection /
EMI Filtering




Union Semi Block Diagram 1 ESD Protection - UESD6V85CT36/UM5059/UM5080 EMI Filtering - UM44X1/64X1/84X1 ESD Protection - UESD6V85CT36/UM5059/UM5080 ESD Protection - UM5055/UM5059/UM5080 ESD Protection - UM5075/UM5079
Products available on SemiconductorStore:
ESD Protection:
Single Line TVS Diode ESD, EFT & Lightning Protection
Single Line TVS Diode ESD, EFT & Lightning Protection
Single Line TVS Diode ESD, EFT & Lightning Protection
Single Line TVS Diode ESD, EFT & Lightning Protection
Single Line TVS Diode ESD, EFT & Lightning Bidirectional Protection
Five Line TVS Diode Array for ESD, EFT & Lightning Protection
EMI Filtering:
4 Line ESD/EMI Protection for Color LCD Interfaces
4 Line ESD/EMI Protection for Color LCD Interfaces
6 Line ESD/EMI Protection for Color LCD Interfaces
6 Line ESD/EMI Protection for Color LCD Interfaces
8 Line ESD/EMI Protection for Color LCD Interfaces
8 Line ESD/EMI Protection for Color LCD Interfaces
Check out Union Semiconductor’s cross reference guide
(TI, On Semi, Maxim, Fairchild, National, and more…)