- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1922 > FT232RL-REEL (FTDI, Future Technology Devices International Ltd)IC USB FS SERIAL UART 28-SSOP PDF資料下載
參數(shù)資料
| 型號： | FT232RL-REEL |
| 廠商： | FTDI, Future Technology Devices International Ltd |
| 文件頁數(shù)： | 6/43頁 |
| 文件大小： | 0K |
| 描述： | IC USB FS SERIAL UART 28-SSOP |
| 產(chǎn)品培訓模塊： | USB Introduction USB-UART Interface Solutions |
| 標準包裝： | 1 |
| 系列： | USBmadeEZ-UART |
| 特點： | USB 至 UART |
| 通道數(shù)： | 1，UART |
| FIFO's： | 256 字節(jié) |
| 規(guī)程： | RS232，RS422，RS485 |
| 電源電壓： | 3.3 V ~ 5.25 V |
| 帶自動流量控制功能： | 是 |
| 帶調(diào)制解調(diào)器控制功能： | 是 |
| 帶CMOS： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應商設備封裝： | 28-SSOP |
| 包裝： | 標準包裝 |
| 產(chǎn)品目錄頁面： | 634 (CN2011-ZH PDF) |
| 配用： | 768-1023-ND - MOD USB RS232 DEV/EVAL FT232RL 768-1022-ND - MOD USB UART MINI B DEV FT232R 768-1021-ND - MOD USB UART MINI DEV FT232R 768-1019-ND - MOD USB UART DEV FT232R |
| 其它名稱： | 768-1007-6 |
第1頁第2頁第3頁第4頁第5頁當前第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁
Copyright 2010 Future Technology Devices International Limited
14
Document No.: FT_000053
FT232R USB UART IC Datasheet Version 2.10
Clearance No.: FTDI# 38
4 Function Description
The FT232R is a USB to serial UART interface device which simplifies USB to serial designs and reduces
external component count by fully integrating an external EEPROM, USB termination resistors and an
integrated clock circuit which requires no external crystal, into the device. It has been designed to
operate efficiently with a USB host controller by using as little as possible of the total USB bandwidth
available.
4.1 Key Features
Functional Integration. Fully integrated EEPROM, USB termination resistors, clock generation, AVCC
filtering, POR and LDO regulator.
Configurable CBUS I/O Pin Options. The fully integrated EEPROM allows configuration of the Control
Bus (CBUS) functionality, signal inversion and drive strength selection. There are 5 configurable CBUS
I/O pins. These configurable options are
1. TXDEN - transmit enable for RS485 designs.
2. PWREN# - Power control for high power, bus powered designs.
3. TXLED# - for pulsing an LED upon transmission of data.
4. RXLED# - for pulsing an LED upon receiving data.
5. TX&RXLED# - which will pulse an LED upon transmission OR reception of data.
6. SLEEP# - indicates that the device going into USB suspend mode.
7. CLK48 / CLK24 / CLK12 / CLK6 - 48MHz, 24MHz, 12MHz, and 6MHz clock output signal
options.
The CBUS pins can also be individually configured as GPIO pins, similar to asynchronous bit bang mode.
It is possible to use this mode while the UART interface is being used, thus providing up to 4 general
purpose I/O pins which are available during normal operation. An application note, AN232R-01, available
from FTDI website (www.ftdichip.com) describes this feature.
The CBUS lines can be configured with any one of these output options by setting bits in the internal
EEPROM. The device is supplied with the most commonly used pin definitions pre-programmed - see
Section 8 for details.
Asynchronous Bit Bang Mode with RD# and WR# Strobes. The FT232R supports FTDIs previous
chip generation bit-bang mode. In bit-bang mode, the eight UART lines can be switched from the regular
interface mode to an 8-bit general purpose I/O port. Data packets can be sent to the device and they will
be sequentially sent to the interface at a rate controlled by an internal timer (equivalent to the baud rate
pre-scaler). With the FT232R device this mode has been enhanced by outputting the internal RD# and
WR# strobes signals which can be used to allow external logic to be clocked by accesses to the bit-bang
I/O bus. This option will be described more fully in a separate application note available from FTDI
Synchronous Bit Bang Mode. The FT232R supports synchronous bit bang mode. This mode differs from
asynchronous bit bang mode in that the interface pins are only read when the device is written to. This
makes it easier for the controlling program to measure the response to an output stimulus as the data
returned is synchronous to the output data. An application note, AN232R-01, available from FTDI website
(www.ftdichip.com) describes this feature.
FTDIChip-ID. The FT232R also includes the new FTDIChip-ID security dongle feature. This
FTDIChip-ID feature allows a unique number to be burnt into each device during manufacture. This
number cannot be reprogrammed. This number is only readable over USB and forms a basis of a security
dongle which can be used to protect any customer application software being copied. This allows the
possibility of using the FT232R in a dongle for software licensing. Further to this, a renewable license
scheme can be implemented based on the FTDIChip-ID number when encrypted with other information.
This encrypted number can be stored in the user area of the FT232R internal EEPROM, and can be
decrypted, then compared with the protected FTDIChip-ID to verify that a license is valid. Web based
applications can be used to maintain product licensing this way. An application note, AN232R-02,
available from FTDI website (www.ftdichip.com) describes this feature.
The FT232R is capable of operating at a voltage supply between +3.3V and +5V with a nominal
operational mode current of 15mA and a nominal USB suspend mode current of 70A. This allows greater
margin for peripheral designs to meet the USB suspend mode current limit of 2.5mA. An integrated level
converter within the UART interface allows the FT232R to interface to UART logic running at +1.8V, 2.5V,
+3.3V or +5V.
相關PDF資料 |
PDF描述 |
|---|---|
| FT245BL-REEL | IC USB FS PARALLEL FIFO 32-LQFP |
| FT245RL-REEL | IC USB TO PARALLEL FIFO 28-SSOP |
| FT4232HQ-REEL | IC USB HS QUAD UART/SYNC 64-QFN |
| FUSB1500MHX | IC USB 2.0 TRANSCEIVER 16-MLP |
| FUSB2805MLX | TXRX USB2.0 HS OTG ULPI 32MLP |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| FT232RL-TUBE | 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB-to-UART 1-CH 256Byte FIFO 5V 28-Pin SSOP Tube 制造商:Future Technology Devices International (FTDI Chip) 功能描述:IC USB FS SERIAL UART 28-SSOP |
| FT232RQ | 制造商:Future Technology Devices International (FTDI Chip) 功能描述: 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB-to-UART 1-CH 256Byte FIFO 5V 32-Pin QFN EP 制造商:FTDI 功能描述: 制造商:Future Technology Devices International (FTDI Chip) 功能描述:IC USB TO UART SMD QFN-32 232 制造商:Future Technology Devices International (FTDI Chip) 功能描述:IC, USB TO UART, SMD, QFN-32, 232 制造商:Future Technology Devices International (FTDI Chip) 功能描述:IC, USB UART INTERFACE, 32-QFN, USB Type:USB UART, USB Version:-, Supply Voltage Min:3.3V, Supply Voltage Max:5.25V, Digital IC Case Style:QFN, No. of Pins:32, No. of Ports:1, Operating Temperature Min:-40C, MSL:-, Bandwidth:48MHz , RoHS Compliant: Yes 制造商:Future Technology Devices International (FTDI Chip) 功能描述:IC, USB TO UART, SMD, QFN-32, 232, Bridge Type:USB to UART, Supply Voltage Min:1 |
| FT232RQ-6000 | 制造商:FTDI 制造商全稱:FTDI 功能描述:USB UART IC - Single chip USB to asynchronous serial data transfer interface |
| FT232RQ-REEL | 功能描述:USB 接口集成電路 USB to Serial UART Enhanced IC QFN-32 RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| FT232RQ-TRAY | 制造商:Future Technology Devices International (FTDI Chip) 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。