"Pszemol" <P...@P...com> wrote in message
news:i8bvh5.23s.0@poczta.onet.pl...
> <a...@p...pl> wrote in message
> news:dlfja6hhe9m1hlqada5nc6spgenn23fkaq@4ax.com...
>> poszukuje chipa, ktory po wbudowaniu do uC zapewni komunikacje z PC
>> (po RS-232) ze wszystkimi sygnalami dla RS a nie tylko RX/TX.
>> Potrzebuje sterowac tymi sygnalami i wykorzystac je jako klucze
>> (on/off).
>>
>> A moze sa jakies inne uklady, ktore nie sa rs-232 a zapewnia
>> sterowanie dla jednego/ kilku przelacznikow. Potrzebuje
>> wlaczyc/wylaczyc cos na 100,200,300 ms potem wylaczyc
>> (chwile odczekac i ponownie).
>
> http://www.ftdichip.com/

A konkretnie tu:
http://www.ftdichip.com/Products/ICs/FT245R.htm

Key Hardware Features

Single chip USB to parallel FIFO bidirectional data transfer interface.
Entire USB protocol handled on the chip - No USB-specific firmware
programming required.
Simple interface to MCU / PLD / FPGA logic with simple 4-wire handshake
interface.
Data transfer rate to 1 Megabyte / second - D2XX Direct Drivers.
Data transfer rate to 300 kilobyte / second - VCP Drivers.
FTDI's royalty-free VCP and D2XX drivers eliminate the requirement for USB
driver development in most cases.
New USB FTDIChip-IDT feature.
FIFO receive and transmit buffers for high data throughput.
256 Byte receive buffer and 128 Byte transmit buffer utilising buffer
smoothing technology to allow for high data throughput.
Adjustable receive buffer timeout.
Synchronous and asynchronous bit bang mode interface options with RD# and
WR# strobes allow the data bus to be used as a general purpose I/O port.
Integrated 1024 bit internal EEPROM for storing USB VID, PID, serial number
and product description strings.
Device supplied preprogrammed with unique USB serial number.
Support for USB suspend / resume through PWREN# pin and Wake Up pin
function.
In-built support for event characters.
Support for bus powered, self powered, and high-power bus powered USB
configurations.
Integrated 3.3V level converter for USB I/O .
Integrated level converter on FIFO interface and control pins for
interfacing to 5V - 1.8V Logic.
True 5V / 3.3V / 2.8V / 1.8V CMOS drive output and TTL input.
High I/O pin output drive option.
Integrated USB resistors.
Integrated power-on-reset circuit.
Fully integrated clock - no external crystal, oscillator, or resonator
required.
Fully integrated AVCC supply filtering - No separate AVCC pin and no
external R-C filter required.
USB bulk transfer mode.
3.3V to 5.25V Single Supply Operation.
Low operating and USB suspend current.
Low USB bandwidth consumption.
UHCI / OHCI / EHCI host controller compatible.
USB 2.0 Full Speed compatible.
-40°C to 85°C extended operating temperature range.
Available in compact Pb-free 28 Pin SSOP and QFN-32 packages (both RoHS
compliant).