ft232hq Future Technology Devices International Ltd., ft232hq Datasheet - Page 9

• Manufacturer Part Number: ft232hq
• Description: Ft232h Single Channel Hi- Speed Usb To Multipurpose Uart/fifo Ic
• Manufacturer: Future Technology Devices International Ltd.

3.3 Signal Description
The operation of the following FT232H pins are the same regardless of the configured mode:-
10,11,22,23,35,36,47,48
Table 3.1 Power and Ground
** If pin 40 (VREGIN) is +5.0V, pin 39 becomes an output and If pin 40 (VREGIN) is 3V3 pin 39 becomes
an input.
Table 3.2 Common Function pins
Pin No.
42
34
12, 24, 46
1
2
5
6
7
Pin No.
4,9,41
40
37
38
39
8
3
RESET#
Name
OSCO
OSCI
TEST
REF
DM
DP
Copyright © 2011 Future Technology Devices International Limited
VREGIN
Name
VCORE
VCCIO
AGND
VCCA
VCCD
VPHY
VPLL
GND
**
**
FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC
OUTPUT
Type
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
output or
POWER
POWER
POWER
POWER
POWER
POWER
POWER
POWER
POWER
output
output
Type
Input
Input
Input
Input
input
input
input
Oscillator input.
Oscillator output.
Current reference – connect via a 12KΩ resistor @ 1% to GND.
USB Data Signal Minus.
USB Data Signal Plus.
IC test pin – for normal operation must be connected to GND.
Reset input (active low).
+5.0V or 3V3 power supply input.
+1.8V output. Should not be used
+1.8V output. Should not be used.
+3.3V output or input.
+3.3V input. I/O interface power supply input
+3.3V input. Internal PLL power supply input. It is
recommended that this supply is filtered using an LC filter.
(See figure 6.1)
+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.(See figure 6.1)
0V Ground input.
0V Ground input.
Description
Description
Document No.: FT_000288
Clearance No.: FTDI #199
Datasheet Version 1.0
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