FT232H datasheet(43/65 Pages) FTDI

tên linh kiện	FT232H

Giải thích chi tiết về linh kiện	FT232H Single Channel Hi-Speed USB to Multipurpose UART/FIFO IC

PDF	65 Pages

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nhà sản xuất	FTDI [Future Technology Devices International Ltd.]

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43 / 65 page

Document No.: FT_000288

FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC

Datasheet Version 1.81

Clearance No.: FTDI #199

4.11 RS232 UART Mode LED Interface Description

When configured in UART mode the FT232H has two IO pins dedicated to controlling LED status

indicators, one for transmitted data the other for received data. When data is being transmitted or

received the respective pins drive from tri-state to low in order to provide indication on the LED’s of data

transfer. A digital one-shot timer is used so that even a small percentage of data transfer is visible to the

end user.

Figure 4.23 Dual LED UART Configuration

Figure 4.23 shows a configuration using two individual LED’s – one for transmitted data the other for

received data.

Figure 4.24 Single LED UART Configuration

In Figure 4.24 transmit and receive LED indicators are wire-OR’ed together to give a single LED indicator

which indicates any transmit or receive data activity.

Note that the LED’s are connected to the same supply as VCCIO.

FT232H bảng dữ liệu(PDF) 43 Page - Future Technology Devices International Ltd.