MT9126AS1

The device features an output enable (OE) and send/receive (DIR) for direction control. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

CH376?is used as file manage control chip, used to MCU system read/write file in USB Flash Drive ?or SD card.

CH376 supports?USB-Device Mode?and?USB-HOST Mode. Set the basic firmware of?USB communication protocol in the inner. It is also set firmware of special communication protocol to ?deal with Mass-Storage devices, communication interface firmware of SD card, FAT16, FAT32 and?FAT12 file system manage firmware in the inner.

ISO3082 is an isolated half duplex differential line transceivers for TIA/EIA 485/422 applications. These devices are ideal for long transmission lines because the ground loop is broken to allow for a much larger common-mode voltage range. The symmetrical isolation barrier of the device is tested to provide 2500 VRMS of isolation for 60 s per UL 1577 between the bus-line transceiver and the logic-level interface.

Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the transceiver and/or nearby sensitive circuitry if they are of sufficient magnitude and duration. These isolated devices can significantly increase protection and reduce the risk of damage to expensive control circuits.