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PDF FT8U232AM Data sheet ( Hoja de datos )
| Número de pieza | FT8U232AM | |
| Descripción | U-UART - USB UltraBaud Data Transfer IC with RS232 / RS422 and CPU I/F Options | |
| Fabricantes | ETC | |
| Logotipo |  |
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FT8U232AM
U-UART - USB UltraBaud Data Transfer IC with RS232 / RS422 and CPU I/F Options
FEATURES
• Single Chip Multi-Function Data Transfer
Solution
• RS232 link from 300 baud to 920K baud
• RS422/RS485 Link to 2000K baud
• 384 byte receive buffer / 128 byte transmit
buffer for high data throughput
• Full hardware assisted or X-On/X-Off
handshaking
• Support for Event Characters and Line Break
condition
• Auto Transmit Buffer control for RS485
• 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
USB 56k / V90 Modems
ÙUSB PDA Interface Cables
ÙUSB RS232 Converters / Cables
ÙUSB RS422 / RS485 High Speed Industrial
Links
USB Digital Cameras
USB I/F for MP3 players
Ultra-high performance Serial Port for legacy -
free PC system boards / Easy PC’s
USB Instrumentation
ÙUSB USB data transfer cables
ÙUSB USB null-modem cables
ÙUSB Serial Bar Code Readers
Note ** = Currently in development
GENERAL DESCRIPTION
The FT8U232AM is a cost-effective single chip USB UART ( U-UART ) solution for transferring serial data
over USB. With data transfer rates of up to 920k baud ( RS232 ) and 2,000 k baud ( RS422 / RS485 ) , the
FT8U232AM significantly raises the performance level above that above that of traditional ISA and PCI based
UART solutions whilst offering true plug and play and easy interfacing through it’s USB interface.
Its flexible architecture allows this IC to be used in many different application areas - USB modems,
ÙLegacy RS232 USB Converter cables, USB interface cables for PDA’s , Bar Code Scanners , RS422 data links
and instrumentation – in fact almost any equipment that previously used a slow RS232 link for communication.
Virtual COM port drivers are available for the FT8U232AM for Windows ’98, Windows 98 SE and Windows
2000. Drivers for other operating systems are currently under development.
Future Technology Devices Intl. FT8U232AM Preliminary Information Rev 0.8 – Subject to Change
1 page  
Table 1 - FT8U232AM - PINOUT DESCRIPTION
Pin # Signal
Type
7
USBDP
I/O
8
USBDM
I/O
6 3V3OUT OUT
27 XTIN IN
28 XTOUT OUT
31
RCCLK
I/O
4
RESET#
IN
32
EECS
I/O
1
EESK
I/O
2
EEDATA
I/O
5
TEST
IN
25
TXD
OUT
24 RXD IN
23
RTS#
OUT
22 CTS# IN
21
DTR#
OUT
20 DSR# IN
19 DCD# IN
18 RI# IN
16 TXDEN OUT
15 USBEN OUT
14 PWRCTL IN
12 TXLED# O.C.
11 RXLED# O.C.
10 SLEEP# OUT
3,13,26
VCC
PWR
9.17
GND
PWR
30
AVCC
PWR
29
AGND
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
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
UART – Transmit Data Output
UART – Receive Data Input
UART – Request To Send Control Output
UART – Clear To Send Control Input
UART – Data Terminal Ready Control Output
UART – Data Set Ready Control Input
UART – Data Carrier Detect Control Input
UART – Ring Indicator Control Input
UART – Enable Transmit Data for RS485
USB Enabled – High after device is configured via USB
Bus Powered – Tie Low / Self Powered – Tie High
LED Drive - Pulses Low when Transmitting Data via USB
LED Drive - Pulses Low when Receiving Data via USB
Goes Low during USB Suspend Mode
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. FT8U232AM Preliminary Information Rev 0.8 – Subject to Change
5 Page 
LABEL : Endpoint3_Des; {* end point descriptor *}
003B 07
003C 05
003D 02
003E 02
003F 40 00
0041 00
Val : $07;{length of this descriptor in bytes}
Val : $05;{End point descriptor}
Val : 00000010b;{out endpoint at address 2}
Val : 00000010b;{attribute as bulk}
Val : 64,$00;{maximum packet size}
Val : $00;{interval for polling endpoint for data transfers}
LABEL : Endpoint_Des_End;
LABEL : Config_Des_End;
LABEL : Str0_Des;
0042 04
Val : Str0_Len;
{length of string descriptor}
0043 03
Val : $03; {type string}
0044 09 04 Val : $09,$04;
{language ID 0009 English}
LABEL : Str0_Des_End;
LABEL : Str1_Des;
E 0046 0A
Val : Str1_Len;
{length of string descriptor}
E 0047 03
Val : $03; {type string}
E 0048 46 00 Val : 'F',$00;
E 004A 54 00 Val : 'T',$00;
E 004C 44 00 Val : 'D',$00;
E 004E 49 00 Val : 'I',$00;
LABEL : Str1_Des_End;
LABEL : Str2_Des;
E 0050 1E
Val : Str2_Len;
{length of string descriptor}
E 0051 03
Val : $03; {type string}
E 0052 55 00 Val : 'U',$00;
E 0054 53 00 Val : 'S',$00;
E 0056 42 00 Val : 'B',$00;
E 0058 20 00 Val : ' ',$00;
E 005A 3C 00 Val : '<',$00;
E 005C 2D 00 Val : '-',$00;
E 005E 3E 00 Val : '>',$00;
E 0060 20 00 Val : ' ',$00;
E 0062 53 00 Val : 'S',$00;
E 0064 65 00 Val : 'e',$00;
E 0066 72 00 Val : 'r',$00;
E 0068 69 00 Val : 'i',$00;
E 006A 61 00 Val : 'a',$00;
E 006C 6C 00 Val : 'l',$00;
LABEL : Str2_Des_End;
LABEL : Str3_Des;
E 006E 12
Val : Str3_Len;
E 006F 03
Val : $03;
E 0070 31 00 Val : '1',00;
E 0072 32 00 Val : '2',00;
E 0074 33 00 Val : '3',00;
E 0076 34 00 Val : '4',00;
E 0078 35 00 Val : '5',00;
E 007A 36 00 Val : '6',00;
E 007C 37 00 Val : '7',00;
E 007E 38 00 Val : '8',00;
LABEL : Str3_Des_End;
{serial number string}
{type string}
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet FT8U232AM.PDF ] | |
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