MC33781

The MC33781 is a master device for four differential DSI 2.02 buses. MC33781 contains the logic to interface the buses to a standard serial peripheral interface (SPI) port and the analog circuitry to drive data and power over the bus, as well as receive data from the remote slave devices.

The features of MC33781 can be summarized as:(1)Four independent differential DSI (DBUS) channels; (2)Dual SPI interface; (3)Enhanced bus fault performance; (4)Automatic message cyclical redundancy checking (CRC) generation and checking for each channel; (5)Enhanced register set with addressable buffer allows queuing of 4 independent slave commands at one time for each channel; (6)8- to 16-Bit messages with 0- to 8-Bit CRC; (7)Independent frequency spreading for each channel; (8)Pseudo bus switch feature on channel 0; (9)Pb-free packaging designated by suffix code EK.

The absolute maximum ratings of MC33781 are:(1)Maximum Voltage on Logic Input /Output Pins:-0.3V to VCC+0.3V; (2)Maximum Voltage on DBUS Pins:-0.3V to VSUPn + 0.3V; (3)Maximum DBUS Pin Current:400mA; (4)Maximum Logic Pin Current:20mA; (5)Human Body Model (HBM):±2000V; (6)Machine Model (MM):±200V; (7)Storage Temperature:-55°C to 150 °C; (8)Operating Ambient Temperature:-40°C to 90 °C; (9)Operating Junction Temperature:-40°C to 150 °C; (10)Thermal Shutdown (Bus Drivers and Pseudo Bus Switch):155°C to 190 °C; (11)Resistance, Junction-to-Ambient:71 °C/W; (12)Resistance, Junction-to-Board:6 °C/W; (13)Soldering Reflow Temperature:260 °C.

If you want to know more information such as the electrical characteristics about the MC33781, please download the datasheet in www.seekic.com or www.chinaicmart.com .