L9110 Motor Control Driver IC (SMD Package) usb b These are polarised Female connectors

These are polarised Female connectors with a latching connection to prevent reverse connections

It has four terminal AO

planar stripe

This is the TLP626-4 Photo IC Photocoupler manufactured by Toshiba

Working Voltage

L9110 Motor Control Driver IC (SMD Package) usb b These are polarised Female connectorsL9110 the ASIC device control and drive motor design two channel push pull power amplifier discrete circuits integrated into a monolithic IC, peripheral devices and reduce the cost, improve the reliability of the whole. This chip has two TTL CMOS compatible with the level of the input, with good resistance; two output terminals can directly forward and reverse movement of the drive motor, it has a large current driving capability, each channel through