|
|
PDF FT8U245AM Data sheet ( Hoja de datos )
| Número de pieza | FT8U245AM | |
| Descripción | USB FIFO - Fast Parallel Data Transfer IC | |
| Fabricantes | ETC | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de FT8U245AM (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
|
No Preview Available !
FT8U245AM
USB FIFO - Fast Parallel Data Transfer IC
FEATURES
• Single Chip Fast Data Transfer Solution
• Send / Receive Data over USB at up to 1 M
Bytes / sec
• 384 byte FIFO Transmit buffer / 128 byte FIFO
receive buffer for high data throughput
• Simple interface to CPU or MCU bus
• No in-depth knowledge of USB required as all
USB Protocol is handled automatically within
the I.C.
• FTDI’s Virtual COM port drivers eliminate the
need for USB driver development in most
cases.
• Compact 32 pin ( 7mm x 7mm ) MQFP package
• Integrated 6MHz - 48MHz Clock Multiplier aids
FCC and CE compliance
• Integrated 3.3v Regulator – No External
Regulator Required
• 4.4v .. 5.25v Single Supply Operation
• UHCI / OHCI Compliant
• USB 1.1 Specification Compliant
• USB VID, PID, Serial Number and Product
Description Strings in external E2PROM.
Virtual COM Port Drivers for –
Windows 98 and Windows 98 SE
Windows 2000
Windows Millennium **
Apple iMAC **
Linux **
• Application Areas
USB ISDN and ADSL Modems
ÙHigh Speed USB PDA Communications
USB I/F for Digital Cameras
USB I/F for MP3 players
High Speed USB Instrumentation
ÙUSB USB data transfer cables
ÙUSB USB null-modem cables
GENERAL DESCRIPTION
The FT8U245AM provides an easy cost-effective method of transferring data to / from a peripheral and a
host P.C. at up to 8 Million bits ( 1 Megabyte ) per second. It’s simple FIFO-like design makes it easy to interface
to any CPU ( MCU ) either by mapping the device into the Memory / IO map of the CPU, using DMA or controlling
the device via IO ports.
To send data from the peripheral to the host P.C. simply write the byte wide data into the device when the
transmitter empty status bit is not active. If the ( 384 byte ) transmit buffer fills up, the device de-asserts
transmit empty in order to stop further data being written to the device until some of the FIFO data has been
transferred over USB.
When the host P.C. sends data to the peripheral over USB, the device will assert the receiver full status
bit to let the peripheral know that data is available. The peripheral then reads the data until the receiver full
status bit goes inactive, indicating no more data is available to read.
By using FTDI’s virtual COM Port drivers, the peripheral looks like a standard COM Port to the application
software. Commands to set the baud rate are ignored – the device always transfers data at it’s fastest rate
regardless of the application’s baud rate setting.
Future Technology Devices Intl. FT8U245AM Preliminary Information Rev 0.9 – Subject to Change
1 page  
Table 1 - FT8U245AM - PINOUT DESCRIPTION
Pin #
7
8
6
27
28
31
4
32
1
2
5
25
24
23
22
21
20
19
18
16
Signal
USBDP
USBDM
3V3OUT
XTIN
XTOUT
RCCLK
RESET#
EECS
EESK
EEDATA
TEST
D0
D1
D2
D3
D4
D5
D6
D7
RD#
15 WR
14 TXE#
12 RXF#
11
10
3,13,26
9.17
30
29
EEREQ#
EEGNT#
VCC
GND
AVCC
AGND
Type
I/O
I/O
OUT
IN
OUT
I/O
IN
I/O
I/O
I/O
IN
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
IN
IN
OUT
OUT
IN
OUT
PWR
PWR
PWR
PWR
Description
USB Data Signal Plus – Requires 1.5k pull-up to 3V3OUT
USB Data Signal Minus
3.3 volt Output from integrated regulator
Input to 6MHz Crystal Oscillator Cell
Output from 6MHz Crystal Oscillator Cell
RC timer – used to guarantee clock stability on exiting sleep
mode. Clamped low during reset or sleep condition.
Resets entire device using external RC network
Optional EEPROM – Chip Select
Optional EEPROM – Clock
Optional EEPROM – Data I/O
Puts device in i.c. test mode – must be tied to GND
Bi-directional Data Bus Bit # 0
Bi-directional Data Bus Bit # 1
Bi-directional Data Bus Bit # 2
Bi-directional Data Bus Bit # 3
Bi-directional Data Bus Bit # 4
Bi-directional Data Bus Bit # 5
Bi-directional Data Bus Bit # 6
Bi-directional Data Bus Bit # 7
Enables Current FIFO Data Byte on D0..D7.when low.
Fetches the next FIFO Data Byte ( if available ) from the
Receive FIFO Buffer when RD# goes from low to high.
Writes the Data Byte on the D0..D7 into the Transmit FIFO
Buffer when WR goes from high to low.
When high, do not write data into the FIFO. When low, data can
be written into the FIFO by strobing WR high then low.
When high, do not read data from the FIFO. When low, there is
data available in the FIFO which can be read by strobing RD#
low then high again.
Requests the EEPROM contents to be accessed via the Data
Bus.
When low, allows the EEPROM contents to be accessed via the
Data Bus.
Device - +4.4 volt to +5.25 volt Power Supply Pins
Device – Ground Supply Pins
Device - Analog Power Supply for the internal x8 clock multiplier
Device - Analog Ground Supply for the internal x8 clock
multiplier
Future Technology Devices Intl. FT8U245AM Preliminary Information Rev 0.9 – Subject to Change
5 Page 
Appendix A
USB Device Descriptors
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet FT8U245AM.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| FT8U245AM | USB FIFO - Fast Parallel Data Transfer IC | ETC |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |