The system can test many types of ICs, check them on board, run in different ways, and also work as a cable tester and typewriter.

The MME-UIT 40 is a microcontroller-based universal IC tester developed by Minmax Electronics. It is designed to test a wide range of integrated circuits—both analog and digital. This includes analog and linear ICs like ADCs, DACs, DPM ICs, Op-Amps, transistor arrays, and waveform generators, as well as digital ICs such as microprocessors, microcontrollers, EPROMs, RAMs, and peripheral devices. It also supports common logic families like the 74 series of TTL and the 40/45 series of CMOS ICs.
The system supports in-circuit testing of gates, buffers, and decoder ICs using an optional IC test clip. This allows users to test ICs without removing them from the board. Up to six logic inputs can be driven and three logic outputs can be monitored during this mode (F9).
MME-UIT 40 has several built-in testing modes to suit different use cases. These include ONE mode to test the IC once, CON mode for continuous testing, and STEP mode for step-by-step testing. A buzzer alerts the user when a faulty IC is detected. The system uses a PC-style keyboard for entering IC numbers and commands, and has a potential-free 40-pin ZIF socket for easy insertion of the IC under test. There is also built-in protection against wrong insertion.
Other key features include a simple cable tester with a learn mode, a 40×2 alphanumeric backlit LCD for displaying test messages, and an RS232 serial interface that allows expansion of the IC test library. The system includes a self-test for checking hardware, firmware, display, keyboard, and buzzer.
In addition to IC testing, MME-UIT 40 also functions as a basic word processor. It can convert the system into an electronic typewriter. The help function is accessible through the F1 key, and the system uses Minmax’s own indigenously developed universal pin driver technology.