Today, 10:03 AM #1
Hello,
I have to interface around 120 LED's to PIC18F4520.
I am planning to do it with Latch IC 74HCT574. But it increases number of latch IC's.
As per the datasheet the maximum current sourced and sunk by all ports of micro controller is 200mA. Is it enough to drive all the LED's?
I am collecting the data from PLC over modbus.
From modbus the data of coil for 120 addresses is collected and according to received data, the status of LED should change.
Please suggest.
thanks
paddy
Hello,
I have to interface around 120 LED's to PIC18F4520.
I am planning to do it with Latch IC 74HCT574. But it increases number of latch IC's.
As per the datasheet the maximum current sourced and sunk by all ports of micro controller is 200mA. Is it enough to drive all the LED's?
I am collecting the data from PLC over modbus.
From modbus the data of coil for 120 addresses is collected and according to received data, the status of LED should change.
Please suggest.
thanks
paddy