FT234XD-R datasheet(7/37 Pages) FTDI

部件名	FT234XD-R

功能描述	USB to BASIC UART IC

PDF	37 Pages

Scroll/Zoom	100%

制造商	FTDI [Future Technology Devices International Ltd.]

网页	http://www.ftdichip.com

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7 / 37 page

FT234XD USB TO BASIC UART IC

Version 1.2

Document No.: FT_000753 Clearance No.: FTDI#324

3 Device Pin Out and Signal Description

3.1 12-Pin DFN Package

RTS#

CTS#

USBDP

USBDM

3V3OUT

RESET#

CBUS0

TXD

RXD

Figure 3.1 DFN Schematic Symbol

3.1.1 DFN Package PinOut Description

Note: # denotes an active low signal.

Pin No.

Name

Type

Description

VCC

POWER

Input

5 V (or 3.3V) supply to IC

VCCIO

POWER

Input

1.8V – 3.3V supply for the IO cells

3.3VOUT

POWER

Output

3.3V output at 50mA. May be used to power VCCIO.

When VCC is 3.3V; pin 3 is an input pin and should be

connected to pin 4.

5, 13

GND

POWER

Input

0V Ground input.

Table 3.1 Power and Ground

*Pin 13 is the centre pad under the IC. Connect to GND.

** If VCC is 3.3V then 3.3VOUT must also be driven with 3.3V input

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