FT232HL-TRAY FTDI, FT232HL-TRAY Datasheet - Page 25

• Manufacturer Part Number: FT232HL-TRAY
• Description: usb-to-uart 1-ch 1.8v/3.3v 48-pin lqfp tray...
• Manufacturer: FTDI

Document No.: FT_000288
FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC
Datasheet Version 1.6
Clearance No.: FTDI #199
4.3.2 RS422 Configuration
Figure 4.2 illustrates how the FT232H can be configured as a RS422 interface.
Figure 4.2 Dual RS422 Configuration
In this case the FT232H is configured as UART operating at TTL levels and a level converter device (full
duplex RS485 transceiver) is used to convert the TTL level signals from the FT232H to RS422 levels. The
PWREN# signal is used to power down the level shifters such that they operate in a low quiescent current
when the USB interface is in suspend mode.
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