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
POWER
Input
POWER
Input
POWER
Input
POWER
Input
POWER
Input
POWER
Output
POWER
Input
POWER
Input
Description
12,37,64
VCORE
+1.8V input. Core supply voltage input
20,31,42,56
VCCIO
+3.3V input. I/O interface power supply input. Failure to connect all
VCCIO pins will result in failure of the device.
9
VPLL
+3.3V input. Internal PHY PLL power supply input. It is recommended
that this supply is filtered using an LC filter.
+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.
+3.3V Input. Integrated 1.8V voltage regulator input.
4
VPHY
50
VREGIN
49
VREGOUT
+1.8V Output. Integrated voltage regulator output. Connect to VCORE
with 3.3uF filter capacitor.
10
AGND
0V Analog ground.
1,5,11,15,
25,35,47,51
GND
0V Ground input.
Table 3.2 Power and Ground
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10
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