FT1220 pages

Document No.: FT_000647
FT122 ENHANCED USB DEVICE CONTROLLER WITH PARALLEL
BUS IC Datasheet Version 1.0
Clearance No.: FTDI# 313

Future Technology Devices
International Ltd.
FT122
(Enhanced USB Device
Controller with Parallel Bus
IC)
The FT122 is a USB generic interface
controller with the following advanced

clock frequency (4 – 24 MHz)

features:

USB 2.0 Full Speed compatible

High performance USB device controller with

30 kHz output clock provided during suspend

Integrated

and voltage regulators

Fully integrated clock generation
external crystal required

with

pull-up

resistor

for

USB

USB connection indicator that toggles with USB
transmit and receive activities

no

Supports 8-bit parallel interface to external
microcontroller

DP

connection

integrated SIE, endpoint buffer, transceiver

Dedicated clock output pin with programmable

Supports

bus

powered

or

self

powered

application

VCC power supply operation at 3.3V or 5V

Internal 1.8V and 3.3V LDO regulators

VCC IO level range from 1.8V to 3.3V

Supports DMA operation

Supports up to 8 bi-directional endpoints with
total 2K bytes endpoint buffer

Max packet size is 504 bytes for isochronous
endpoint and 64 bytes for control/bulk/
interrupt endpoint

Integrated power-on-reset circuit

UHCI/OHCI/EHCI host controller compatible

Double

-40° to 85° extended operating temperature
C
C

buffer

scheme

for

any

endpoint

increases data transfer throughput

range

Multiple interrupt modes to facilitate both bulk
and isochronous transfers

USB

Battery

Charger

Available in Pb-free TSSOP-28 and QFN-28
packages (RoHS compliant)

detection

allowing

optimized charging profile
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 produ ct. 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 preliminar y
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

Copyright © 2012 Future Technology Devices International Limited

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