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Messages - r6mf49t2

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Discussion - Hardware / Re: FT230X VCCIO current
« on: April 16, 2018, 06:33:40 AM »
This contradicts the following document: http://www.ftdichip.com/Support/Documents/DataSheets/Modules/DS_UMFT230XA.pdf

The FT230X can process signals at CMOS/TTL logic levels in the range of 1.8V to 3.3V.
Figure 5.4 shows a configuration where the FT230X is interfaced to a device with IOs operating in the range of 1.8V – 3.3V. The IO ports of this module need to be powered with a voltage level that is equal to the level of the signals it is processing. Since the FT230X’s embedded voltage regulator only outputs 3V3 the IO ports will need to be powered from another power source when operating at voltage levels other than 3.3V.

If power is applied to VCCIO and no power is applied to VCC all Ios will be at an unknown state, this however will not damage the chip.

Discussion - Hardware / FT230X VCCIO current
« on: April 06, 2018, 06:47:05 AM »
I'm developing a battery-powered device. I plan to connect the VCCIO to the battery (2-3V), and connect VCC to the USB (5V). (As described in Chapter 5.6 Variable IO Voltage Supply http://www.ftdichip.com/Support/Documents/DataSheets/Modules/DS_UMFT230XA.pdf).
What VCCIO current will be in case when usb is connected and when is not?

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