DS_FT231X Ver la hoja de datos (PDF) - Unspecified

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DS_FT231X

FT231X USB TO FULL HANDSHAKE UART IC

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FT231X USB TO FULL HANDSHAKE UART IC

Datasheet

Version 1.2

Document No.: FT_000565 Clearance No.: FTDI# 261

3 Device Pin Out and Signal Description

3.1 20-LD QFN Package

10 3V3OUT

9

8

USBDM

USBDP

11 RESET#

TXD

RXD

RTS#

CTS#

DTR#

DSR#

DCD#

RI#

17

1

19

6

18

4

5

2

CBUS0

CBUS1

CBUS2

CBUS3

15

14

7

16

Figure 3.1 QFN Schematic Symbol

3.1.1 QFN Package PinOut Description

Note: # denotes an active low signal.

Pin No.

12

20

Name

**

VCC

VCCIO

**

10

3V3OUT

3, 13

GND

Table 3.1 Power and Ground

Type

Description

POWER

Input

5 V or 3V3 supply to IC

POWER

Input

POWER

Output

1V8 – 3V3 supply for the IO cells

3V3 output at 50mA. May be used to power VCCIO.

When VCC is 3V3; pin 10 is an input pin and should be

connected to pin 12.

POWER

Input

0V Ground input.

*Pin 21 on the symbol is the pad under the centre of the chip package and should be connected to GND

** If VCC is 3V3 then 3V3OUT must also be driven with 3V3 input

Copyright © 2013 Future Technology Devices International Limited

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