Description:
1.The TTL-232RG generic cables use FT232RQ USB to serial IC device. This section summarises the key features of the FT232RQ which apply to the TTL-232RG USB to serial TTL converter cables.

2.Internal EEPROM. The internal EEPROM in each cable is used to store USB Vendor ID (VID), Product ID (PID), device serial number, product description string and various other USB configuration descriptors. Each cable is supplied with the internal EEPROM pre-programmed as described in Appendix A. A user area of the internal EEPROM is available to system designers to allow storing additional data. The internal EEPROM descriptors can be programmed in circuit, over USB without any additional voltage requirement. It can be programmed using the utility software called FT_PROG

3.Lower Operating and Suspend Current. The FT232RQ has a low 15mA operating supply current and a very low USB suspend current of approximately 70μA. (Note that during suspend mode, the current drawn by application should not exceed 2.5mA to remain USB compliant).

4.Low USB Bandwidth Consumption. The USB interface of the FT232RQ, and therefore the TTL-232RG cables has been designed to use as little as possible of the total USB bandwidth available from the USB host controller.

5.High Output Drive Option. The UART interface I/O pins on the TTL-232RG cables (RXD, TXD, RTS#, and CTS#) can be configured to use the FT232RQ's high output drive option. This option allows the FT232RQ I/O pins to drive up to three times the standard signal drive level. This allows multiple devices to be driven, or devices that require greater signal drive strength to be interfaced to the cables. This option is enabled in the internal EEPROM.

6.UART Pin Signal Inversion. The sense of each of the eight UART signals can be individually inverted by configuring options in the internal EEPROM. For example, CTS# (active low) can be changed to CTS (active high), or TXD can be changed to TXD#.

7.Extended Operating Temperature Range - The TTL-232RG generic cables are capable of operating over an extended temperature range of -40º to +85º C thus allowing them to be used in automotive or industrial applications.