How to use single chip to increase the transistor drive capacity

I Sunplus 61 single-chip driver control dc5v-12v relay to control the motor can be driven single-chip not enough capacity.To increase the ability to drive, there are ways ah? Pull-up resistor then the law is what z ah ?

transistor B and a single-chip I / O port between a 10K or so linked to the resistance, at the same time a B plus A 10K around the resistance to the ground, E termination transistor, the transistor C then relays the very end, the other relay around the termination of a 1K resistor connected to the 12V, you can.