FT221XS-R FTDI, FT221XS-R Datasheet

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FT221XS-R

Manufacturer Part Number
FT221XS-R
Description
USB Interface IC USB to 8 bit SPI / FT1248 IC SSOP-20
Manufacturer
FTDI
Datasheet

Specifications of FT221XS-R

Rohs
yes
Product
USB 2.0
Data Rate
12 Mbps, 480 Mbps
Interface Type
USB
Operating Supply Voltage
2.97 V to 5.5 V
Operating Supply Current
8.1 mA to 13.1 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SSOP-20
Tradename
X-Chip

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FT221XS-R
Manufacturer:
FTDI
Quantity:
780
Future Technology Devices
(
USB 8-Bit SPI/FT1248 IC)
The
proprietary FT1248 interface with the
following advanced features:
Neither the whole nor any part of the information contained in, or the product described in this manual, may be adapted or reproduced
in any material or electronic form without the prior written consent of the copyright holder. This product and its documentation are
supplied on an as-is basis and no warranty as to their suitability for any particular purpose is either made or implied. Future Technology
Devices International Ltd will not accept any claim for damages howsoever arising as a result of use or failure of this product. Your
statutory rights are not affected. This product or any variant of it is not intended for use in any medical appliance, device or system in
which the failure of the product might reasonably be expected to result in personal injury. This document provides preliminary
information that may be subject to change without notice. No freedom to use patents or other intellectual property rights is implied by
the publication of this document. Future Technology Devices International Ltd, Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow
G41 1HH United Kingdom. Scotland Registered Company Number: SC136640
Single chip USB to 1, 2, 4, or 8 bit wide
synchronous interface.
Similar to an SPI Slave with variable bus width.
Entire USB protocol handled on the chip. No
USB specific firmware programming required.
Fully
programmable (MTP) memory, storing device
descriptors and CBUS I/O configuration.
Fully
external crystal required plus optional clock
output selection enabling a glue-less interface
to external MCU or FPGA.
Data transfer rates to 1MByte/s.
512 byte receive buffer and 512 byte transmit
buffer utilising buffer smoothing technology to
allow for high data throughput.
FTDI’s royalty-free Virtual Com Port (VCP) and
Direct
requirement for USB driver development in
most cases.
Configurable CBUS I/O pin.
International Ltd
FT221X
integrated
integrated
(D2XX)
FT221X
Copyright © 2013 Future Technology Devices International Limited
is
clock
drivers
2048
a USB
generation
byte
eliminate
to
multi-time-
with
FTDI’s
.
the
no
Document No.: FT_000630 Clearance No.: FTDI# 263
USB Battery Charger Detection. Allows for USB
peripheral devices to detect the presence of a
higher
charging.
Device supplied pre-programmed with unique
USB serial number.
USB
powered, self-powered and bus-powered with
power switching.
Integrated +3.3V level converter for USB I/O.
True 3.3V CMOS drive output and TTL input;
operates down to 1V8 with external pull-ups.
Tolerant of 5V inputs.
Configurable I/O pin output drive strength; 4
mA(min) and 16 mA(max)
Integrated power-on-reset circuit.
Fully integrated AVCC supply filtering - no
external filtering required.
+ 5V Single Supply Operation.
Internal 3V3/1V8 LDO regulators
Low operating and USB suspend current; 8mA
(active-typ) and 125uA (suspend-typ).
Low USB bandwidth consumption.
UHCI/OHCI/EHCI host controller compatible.
USB 2.0 Full Speed capable.
Extended operating temperature range; -40 to
85⁰C.
Available in compact Pb-free 20 Pin SSOP and
QFN packages (both RoHS compliant).
Power
power
Configurations;
source
to
enable
Version 1.2
supports
improved
bus-
1

Related parts for FT221XS-R

FT221XS-R Summary of contents

Page 1

... Data transfer rates to 1MByte/s.  512 byte receive buffer and 512 byte transmit buffer utilising buffer smoothing technology to allow for high data throughput.  FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers requirement for USB driver development in most cases. ...

Page 2

... For driver installation, please refer to 1.2 Part Numbers Part Number FT221XQ-x FT221XS-x Note: Packing codes for x is Taped and Reel, (SSOP is 3,000pcs per reel, QFN is 5,000pcs per reel Tube packing, 58pcs per tube (SSOP only Tray packing, 490pcs per tray (QFN only) For example: FT221XQ-R is 5,000pcs taped and reel packing Copyright © ...

Page 3

... USB Compliant The FT221X is fully compliant with the USB 2.0 specification and has been given the USB-IF Test-ID (TID) 40001462 (Rev D). Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Version 1.2 3 ...

Page 4

... X4 Clock 12MHz Multiplier Oscillator GND Figure 2.1 FT221X Block Diagram For a description of each function please refer to Section 4. Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 1V8 Internal Core Supply FIFO RX Buffer (512 bytes) USB Engine Protocol Engine ...

Page 5

... USB Bus Powered Configuration ...................................................... 26 7.2 Self Powered Configuration .............................................................. 27 7.3 USB Bus Powered with Power Switching Configuration .................... 28 7.4 USB Battery Charging Detection ....................................................... 29 8 Application Examples ................................................................. 30 8.1 USB to FT1248 Converter .................................................................. 30 9 Internal MTP Memory Configuration ........................................... 33 Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Version 1.2 5 ...

Page 6

... SSOP-20 Package Markings ............................................................ 39 10.3 QFN-20 Package Mechanical Dimensions ....................................... 40 10.4 QFN-20 Package Markings ............................................................. 41 10.5 Solder Reflow Profile ..................................................................... 42 11 Contact Information ................................................................... 43 Appendix A – References ........................................................................... 44 Appendix B - List of Figures and Tables ..................................................... 45 Appendix C - Revision History .................................................................... 47 Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Version 1.2 6 ...

Page 7

... GND Table 3.1 Power and Ground *Pin 21 is the centre pad under the IC. Connect to GND VCC is 3V3 then 3V3OUT must also be driven with 3V3 input Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 ...

Page 8

... When used in Input Mode, the input pins are pulled to VCCIO via internal 75kΩ (approx) resistors. These pins can be programmed to gently pull low during USB suspend (PWREN# = “1”) by setting an option in the MTP memory. Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Type INPUT USB Data Signal Minus. ...

Page 9

... Table 3.4 Power and Ground ** If VCC is 3V3 then 3V3OUT must also be driven with 3V3 input Pin No. Name 12 USBDM 11 USBDP 14 RESET# Table 3.5 Common Function pins Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 CLK 17 ...

Page 10

... When used in Input Mode, the input pins are pulled to VCCIO via internal 75kΩ (approx) resistors. These pins can be programmed to gently pull low during USB suspend (PWREN# = “1”) by setting an option in the MTP memory. Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Description Bi-Directional data bit 0 Bi-Directional data bit 1 ...

Page 11

... The following options can be configured on the CBUS I/O pin. CBUS signal options are common to both package versions of the FT221X. These options can be configured in the internal MTP memory using the software utility FT_PPROG, which can be downloaded from the FTDI Utilities (www.ftdichip.com). The default configuration is described in Section 9. ...

Page 12

... The descriptors can be programmed using the FTDI utility software called FT_PROG, which can be downloaded from FTDI Utilities on the FTDI website (www.ftdichip.com). In addition to programming over USB the MTP memory may be accessed via the FT1248 interface. +1.8V LDO Regulator. The +1.8V LDO regulator generates the +1.8V reference voltage for driving the internal core of the IC ...

Page 13

... RESET Generator - The integrated Reset Generator Cell provides a reliable power-on reset to the device internal circuitry at power up. The RESET# input pin allows an external device to reset the FT221X. RESET# can be tied to VCC or left unconnected if not being used. Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Version 1.2 13 ...

Page 14

... The remaining bits used during the command phase are used to contain the command itself which means that it is possible to define unique commands. Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 with FT_PROG at the same time as selecting memory Version 1 ...

Page 15

... Command Identifier write 0x00 read 0x01 read modem status 0x02 write modem status 0x03 write buffer flush 0x04 Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 CMD[2] BWID 8-bit CMD[ CMD[2] ...

Page 16

... Supporting CPHA = 0 would result in bus contention and therefore, shall not be supported. Table 5.2: CPOL & CPHA Mode Numbers Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 buffer Address EEPROM command sets the address users wish to write or read from ...

Page 17

... The CPOL value may be selected in the MTP memory. This may be done with FT_PROG. Note: Further information on this interface can be found in AN_167_FT1248 Parallel Serial Interface Basics from the FTDI website www.ftdichip.com. Copyright © 2013 Future Technology Devices International Limited FT221X USB 8-BIT SPI/FT1248 IC Datasheet Document No.: FT_000630 Clearance No.: FTDI# 263 Transfer start 2 3 ...

Page 18

... Typical (ns) T1 83.33ns T2 41.67ns T3 41.67ns T4 1 Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Max (ns) Description SCLK Period SCLK HIGH SCLK LOW 30 SCLK rising or falling driving edge to MIOSIO/MSIO MIOSIO setup time to rising or falling sample SCLK edge ...

Page 19

... T8 5 Table 5.5: 3V3 VCCIO timings Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 MIOSIO setup time to rising or falling sample SCLK edge MIOSIO hold time from rising or falling sample SCLK edge SS_n setup time to rising or falling SCLK edge ...

Page 20

... Parameter Storage Temperature Floor Life (Out of Bag) At Factory Ambient (30°C / 60% Relative Humidity) Ambient Operating Temperature (Power Applied) MTTF FT221XS MTTF FT221XQ VCC Supply Voltage VCCIO IO Voltage DC Input Voltage – USBDP and USBDM DC Input Voltage – High Impedance Bi-directionals (powered from VCCIO) DC Output Current – ...

Page 21

... VCC Voltage VCCIO Operating VCC2 Supply Voltage Operating Supply Icc1 Current Operating Supply Icc2 Current 3V3 3.3v regulator output Table 6.3 Operating Voltage and Current Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Minimum Typical Maximum 2.97 5 5.5 1.62 --- 3.63 8.1 11 13.1 125 2.97 3 ...

Page 22

... Tri-state output leakage Ioz current Table 6.4 I/O Pin Characteristics VCCIO = +3.3V (except USB PHY pins) * The I/O drive strength and slow slew-rate are configurable in the MTP memory. Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Minimum Typical Maximum 2.97 VCCIO VCCIO 2 ...

Page 23

... Tri-state output leakage Ioz current Table 6.5 I/O Pin Characteristics VCCIO = +2.5V (except USB PHY pins) * The I/O drive strength and slow slew-rate are configurable in the MTP memory. Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Minimum Typical Maximum 2.25 VCCIO VCCIO 2 ...

Page 24

... Tri-state output leakage Ioz current Table 6.6 I/O Pin Characteristics VCCIO = +1.8V (except USB PHY pins) * The I/O drive strength and slow slew-rate are configurable in the MTP memory. Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Minimum Typical Maximum 1.62 VCCIO VCCIO 1 ...

Page 25

... The internal Clock Oscillator has the following characteristics: Parameter Minimum Frequency of Operation (see Note 1) Clock Period Duty Cycle Table 6.9 Internal Clock Characteristics Note 1: Equivalent to +/-1667ppm Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Minimum Typical Maximum VCC-0 2.0 Unit Years ...

Page 26

... USB Power Configurations The following sections illustrate possible USB power configurations for the FT221X. The illustrations have omitted pin numbers for ease of understanding since the pins differ between the FT221XS and FT221XQ package options. All USB power configurations illustrated apply to both package options for the FT221X device. Please refer to Section 3 for the package option pin-out and signal descriptions ...

Page 27

... When the FT221X is in reset, the UART interface I/O pins are tri-stated. Input pins have internal 200kΩ pull-up resistors to VCCIO, so they will gently pull high unless driven by some external logic. Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 VCC(3.3-5.25V) 27R 27R ...

Page 28

... PWREN# gets its VCC from VCCIO. For designs using 3V3 logic, ensure VCCIO is not powered down using the external logic. In this case use the +3V3OUT. Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 P Channel Power MOSFET ...

Page 29

... To calculate the equivalent resistance on the LTC4053 PROG pin select a charge current, then Res = 1500V/I chg For more configuration options of the LTC4053 refer to: AN_175_Battery Charging Over USB Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 http://www.usb.org/developers/devclass_docs/BCv1.2_011912.zip VBUS 3V3OUT VBUS ...

Page 30

... Application Examples The following sections illustrate possible applications of the FT221X. The illustrations have omitted pin numbers for ease of understanding since the pins differ between the FT221XS and FT221XQ package options. 8.1 USB to FT1248 Converter Figure 8.1 Application Example showing USB to FT1248 host NOTE: ALL IO LINES SHOULD HAVE A 10k PULL UP TO VCCIO The FT1248 can be used with 1-bit, 2-bit, 4-bit or 8-bit wide data ...

Page 31

... BUS TURNAROUND MIOSIO[0] MIOSIO[1] MIOSIO[2] MIOSIO[3] MIOSIO[4] MIOSIO[5] MIOSIO[6] MIOSIO[7] MISO RXF# Figure 8.2 FT1248 8- bit write timing diagram Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 COMMAND PHASE BUS TURNAROUND CMD3 TXE CMD2 0 CMD1 CMD0 X TXE# ACK Version 1 ...

Page 32

... TXE# MIOSIO[1] MIOSIO[2] MIOSIO[3] MIOSIO[4] MIOSIO[5] MIOSIO[6] MIOSIO[7] MISO RXF# Figure 8.3 FT1248 8- bit read timing diagram Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 COMMAND PHASE READ DATA 1 BUS TURNAROUND READ DATA 2 CMD3 ...

Page 33

... Further details of this are provided from section 9.2 onwards. Users who do not have their own USB Vendor ID but who would like to use a unique Product ID in their design can apply to FTDI for a free block of unique PIDs. See TN_100 – USB Vendor ID/Product ID Guidelines for more details. ...

Page 34

... FT_Prog utility is used to set the required options and program the device. The FT_Prog utility is provided free-of-charge from the FTDI website, and can be found at the link below. The user guide is also available at this link. http://www.ftdichip.com/Support/Utilities.htm#FT_Prog Additionally, D2XX commands can be used to program the MTP memory from within user applications ...

Page 35

... The information in the rest of this chapter can be used to implement the storing and reading of application data in the user area as in example 1 above. Example 2 requires details of the configuration data stored in the MTP memory which is FTDI proprietary information. A separate application note is available under NDA from FTDI support for customers who require to do this (support1@ftdichip.com). ...

Page 36

... As with the writing process, the first part of the communication for a read sets the address. The read will then be initiated when the FT1248 slave receives an MTP memory read command. The status during the Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Version 1.2 36 ...

Page 37

... ACK along with the data receives NAK during the data phase it can abort the read transfer and try again. When the read has been serviced the st data shall be returned on the 1 Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 data byte phase. Version 1.2 37 ...

Page 38

... SSOP-20 Package Mechanical Dimensions Figure 10.1 SSOP-20 Package Dimensions The FT221XS is supplied in a RoHS compliant 20 pin SSOP package. The package is lead (Pb) free and uses a ‘green’ compound. The package is fully compliant with European Union directive 2002/95/EC. This package is nominally 8.66mm x 3.91mm body (8.66mm x 5.99mm including pins). The pins are on a ...

Page 39

... SSOP-20 Package Markings 20 -B FT221XS 1 Figure 10.2 QFN-20 Package Markings The date code format is YYXX where digit week number digit year number. This is followed by the revision number. The code XXXXXXXXXXXX is the manufacturing LOT code. Copyright © 2013 Future Technology Devices International Limited Document No ...

Page 40

... QFN-32 package. All dimensions are in millimetres. The centre pad on the base of the FT221XQ is internally connected to GND, and the PCB should not have signal tracks on the top layer under this device. Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Version 1.2 40 ...

Page 41

... The date code format is YYXX where digit week number digit year number. This is followed by the revision number. The code XXXXXXX is the manufacturing LOT code. Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 15 10 Version 1.2 ...

Page 42

... Time within 5°C of actual Peak Temperature ( Ramp Down Rate Time for T= 25°C to Peak Temperature, T Table 10.1 Reflow Profile Parameter Values Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 t p Ramp Free Solder Process 3° ...

Page 43

... FTDI disclaims all liability for system designs and for any applications assistance provided by FTDI. Use of FTDI devices in life support and/or safety applications is entirely at the user’s risk, and the user agrees to defend, indemnify and hold harmless FTDI from any and all damages, claims, suits or expense resulting from such use ...

Page 44

... Appendix A – References Useful Application Notes http://www.ftdichip.com/Documents/AppNotes/AN232R-01_FT232RBitBangModes.pdf http://www.ftdichip.com/Documents/AppNotes/AN_107_AdvancedDriverOptions_AN_000073.pdf http://www.ftdichip.com/Documents/AppNotes/AN_121_FTDI_Device_EEPROM_User_Area_Usage.pdf http://www.ftdichip.com/Documents/AppNotes/AN_167_FT1248_Parallel_Serial_Interface_Basics.pdf http://www.ftdichip.com/Documents/InstallGuides.htm http://www.ftdichip.com/Support/Documents/TechnicalNotes/TN_100_USB_VID-PID_Guidelines.pdf http://www.ftdichip.com/Support/Documents/AppNotes/AN_175_Battery%20Charging%20Over%20USB %20with%20FTEX%20Devices.pdf http://www.usb.org/developers/devclass_docs/BCv1.2_011912.zip Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Version 1.2 44 ...

Page 45

... Table 6.3 Operating Voltage and Current ....................................................................................... 21 Table 6.4 I/O Pin Characteristics VCCIO = +3.3V (except USB PHY pins) ........................................... 22 Table 6.5 I/O Pin Characteristics VCCIO = +2.5V (except USB PHY pins) ........................................... 23 Table 6.6 I/O Pin Characteristics VCCIO = +1.8V (except USB PHY pins) ........................................... 24 Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Version 1.2 45 ...

Page 46

... Table 6.7 USB I/O Pin (USBDP, USBDM) Characteristics .................................................................. 25 Table 6.8 MTP Memory Characteristics ........................................................................................... 25 Table 6.9 Internal Clock Characteristics ......................................................................................... 25 Table 10.1 Reflow Profile Parameter Values .................................................................................... 42 Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 Version 1.2 46 ...

Page 47

... Removed section 8.2 showing connection of the Tx/Rx LEDs. Updated TID Updated US address Added clarification on front page – 5V tolerant Copyright © 2013 Future Technology Devices International Limited Document No.: FT_000630 Clearance No.: FTDI# 263 USB 8-Bit SPI/FT1248 IC FT221X FT_000630 FTDI# 263 http://www.ftdichip.com/FT-X.htm Send Feedback Load VCP Version 1 ...

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