Document No.: FT_000060
FT4232H QUAD HIGH SPEED USB TO MULTIPURPOSE UART/MPSSE IC
Datasheet Version 2.09
Clearance No.: FTDI#78
3.3 Common Pins
The operation of the following FT4232H pins are the same regardless of the configured mode:-
Pin No.
Name
Type
Description
POWER
Input
12,37,64
VCORE
+1.8V input. Core supply voltage input
+3.3V input. I/O interface power supply input. Failure to connect all
VCCIO pins will result in failure of the device.
POWER
Input
20,31,42,56
VCCIO
VPLL
POWER
Input
+3.3V input. Internal PHY PLL power supply input. It is recommended
that this supply is filtered using an LC filter.
9
4
+3.3V Input. Internal USB PHY power supply input. Note that this
cannot be connected directly to the USB supply. A +3.3V regulator
must be used. It is recommended that this supply is filtered using an LC
filter.
POWER
Input
VPHY
POWER
Input
50
49
10
VREGIN
VREGOUT
AGND
+3.3V Input. Integrated 1.8V voltage regulator input.
POWER
Output
+1.8V Output. Integrated voltage regulator output. Connect to VCORE
with 3.3uF filter capacitor.
POWER
Input
0V Analog ground.
0V Ground input.
1,5,11,15,
POWER
Input
GND
25,35,47,51
Table 3.2 Power and Ground
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10
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