The Zamel NTC-03 is an electronic timer designed to provide pulse width modulation (PWM) output control signals. It is a single-chip device that is compatible with a wide range of microcontrollers, inverters, and drives. It is widely used in applications such as brushless DC motor speed control, temperature control, and pulse-width power control. The device includes two 8-bit up/down pulse width counter (PWC) registers, a 32-bit timer count register, and an 8-bit duty cycle linear adjustment register. It also includes two 8-bit update cycle registers, which are used to define the period of the PWM pulses that will be generated. The PWC registers allow for fine control of the PWM duty cycle and pulse width.