Brand new and high quality.
L293D is a monolithic integrated, high voltage, high current, 4-channel driver.
Basically this means using this chip you can use DC motors and power supplies of up to 10 Volts, thats some pretty big motors and the chip can supply amaximum current of 600mA per channel, the L293D chip is also what’s known as a type of H-Bridge.
The H-Bridge is typically an electrical circuit that enables a voltage to be applied across a load in either direction to an output, e.g. motor.
2 interface for 5V Servo connected to the Arduino’s high-resolution dedicated timer – no jitter.
Can drive 4 DC motors or 2 stepper motors or 2 Servo.
Up to 4 bi-directional DC motors with individual 8-bit speed selection.
Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil or interleaved stepping.
4 H-Bridges: per bridge provides 0.6A (1.2A peak current) with thermal protection, can run motors on 4.5V to 10V DC.
Pull down resistors keep motors disabled during power-up.
2 external terminal power interface, for seperate logic/motor supplies.
Tested compatible for Arduino Mega, Diecimila & Duemilanove.
Size:6.8cm x 5.5cm x 2cm – 2.68inch x 2.17inch x 0.79inch.
It reinforces the control commands of the input pins and give it to the eight output pins.
This happens via 4 H-bridges.
The output pins have clamping connections and they are labeled with M1, M2, M3, M4.
Ensure sufficient voltage and current to the VCC and GND terminal.
It can control 4 DC motors or 2 stepper motors. It also has 2 power connectors. It fits directly without tinkering on an Arduino UNO, Duemilanove or MEGA.