FT221XS-R datasheet(7/45 Pages) FTDI

Part #	FT221XS-R

Description	Future Technology Devices International Ltd.

PDF	45 Pages

Scroll/Zoom	100%

Manufacturer	FTDI [Future Technology Devices International Ltd.]

Direct Link	http://www.ftdichip.com

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FT221X USB 8-BIT SPI/FT1248 IC Datasheet

Version 1.3

Document No.: FT_000630 Clearance No.: FTDI# 263

3 Device Pin Out and Signal Description

3.1 20-LD QFN Package

MIOSI7

MIOSI4

MIOSI5

MIOSI2

MIOSI3

MISO

USBDP

USBDM

3V3OUT

RESET#

CS#

CLK

MIOSI0

MIOSI6

MIOSI1

CBUS3

Figure 3.1 QFN Schematic Symbol

3.1.1 QFN Package PinOut Description

Note : # denotes an active low signal.

Pin No.

Name

Type

Description

VCC

POWER

Input

5 V (or 3V3) supply to IC

VCCIO

POWER

Input

1V8 - 3V3 supply for the IO cells

3V3OUT

POWER

Output

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

3, 13

GND

POWER

Input

0V Ground input.

Table 3.1 Power and Ground

*Pin 21 is the centre pad under the IC. Connect to GND.

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

FT221XS-R Datasheet(PDF) 7 Page - Future Technology Devices International Ltd.

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