參數(shù)資料
型號(hào)： FT232RL
廠商： Electronic Theatre Controls, Inc.
英文描述： Incorporating Clock Generator Output and FTDIChip-ID Security Dongle
中文描述： 納入時(shí)鐘發(fā)生器輸出和FTDIChip標(biāo)識(shí)安全適配器
文件頁(yè)數(shù)： 4/29頁(yè)
文件大小： 471K
代理商： FT232RL
FT232R USB UART I.C. Datasheet Version 1.04
Future Technology Devices International Ltd. 2005
Page 4
Lower Supply Voltage -
Previous generations of the chip required 5V supply on the VCC pin. The FT232R will work
with a Vcc supply in the range 3.3V - 5.25V. Bus powered designs would still take their supply from the 5V on the USB
bus, but for self powered designs where only 3.3V is available and there is no 5V supply there is no longer any need
for an additional external regulator.
Integrated Level Converter on UART Interface and Control Signals
- VCCIO pin supply can be from 1.8V to 5V.
Connecting the VCCIO pin to 1.8V, 2.8V, or 3.3V allows the device to directly interface to 1.8V, 2.8V or 3.3V and other
logic families without the need for external level converter I.C. devices.
5V / 3.3V / 2.8V / 1.8V Logic Interface -
The FT232R provides
true
CMOS Drive Outputs and TTL level Inputs.
Integrated Power-On-Reset (POR) Circuit-
The device incorporates an internal POR function. A RESET# pin is
available in order to allow external logic to reset the FT232R where required. However, for many applications the
RESET# pin can be left unconnected, or pulled up to VCCIO.
Lower Operating and Suspend Current -
The device operating supply current has been further reduced to 15mA,
and the suspend current has been reduced to around 70μA. This allows greater margin for peripheral designs to meet
the USB suspend current limit of 500μA.
Low USB Bandwidth Consumption -
The operation of the USB interface to the FT232R has been designed to use
as little as possible of the total USB bandwidth available from the USB host controller.
High Output Drive Option -
The UART interface and CBUS I/O pins can be made to drive out at three times the
standard signal drive level thus allowing multiple devices to be driven, or devices that require a greater signal drive
strength to be interfaced to the FT232R. This option is enabled in the internal EEPROM.
Power Management Control for USB Bus Powered, High Current Designs-
The PWREN# signal can be used to
directly drive a transistor or P-Channel MOSFET in applications where power switching of external circuitry is required.
An option in the internal EEPROM makes the device gently pull down on its UART interface lines when the power
is shut off (PWREN# is high). In this mode any residual voltage on external circuitry is bled to GND when power is
removed, thus ensuring that external circuitry controlled by PWREN# resets reliably when power is restored.
UART Pin Signal Inversion -
The sense of each of the eight UART signals can be individually inverted by setting
options in the internal EEPROM. Thus, CTS# (active low) can be changed to CTS (active high), or TXD can be
changed to TXD#.
FTDIChip-ID -
Each FT232R is assigned a unique number which is burnt into the device at manufacture. This ID
number cannot be reprogrammed by product manufacturers or end-users. This allows the possibility of using FT232R
based dongles 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
describing this feature is available separately from the
FTDI website
.
Improved EMI Performance -
The reduced operating current and improved on-chip VCC decoupling significantly
improves the ease of PCB design requirements in order to meet FCC, CE and other EMI related specifications.
Programmable Receive Buffer Timeout -
The receive buffer timeout is used to flush remaining data from the
receive buffer. This time defaults to 16ms, but is programmable over USB in 1ms increments from 1ms to 255ms, thus
allowing the device to be optimised for protocols that require fast response times from short data packets.
Extended Operating Temperature Range -
The FT232R operates over an extended temperature range of -40o to
+85o C thus allowing the device to be used in automotive and industrial applications.
New Package Options -
The FT232R is available in two packages - a compact 28 pin SSOP (
FT232RL
) and an
ultra-compact 5mm x 5mm pinless QFN-32 package (
FT232RQ
). Both packages are lead ( Pb ) free, and use a
‘green’ compound. Both packages are fully compliant with European Union directive 2002/95/EC.
相關(guān)PDF資料
PDF描述
FT232RQ Incorporating Clock Generator Output and FTDIChip-ID Security Dongle
FT500AH-80 Phase Control SCR 320 Amperes Avg 3000-4000 Volts
FT500AN-60 PHASE CONTROL SCR
FT500AH-60 Phase Control SCR 320 Amperes Avg 3000-4000 Volts
FT500AH-70 Phase Control SCR 320 Amperes Avg 3000-4000 Volts
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FT232RL R 制造商:Future Technology Devices International Ltd 功能描述:UART, 28 Pin, Plastic, SSOP
FT232RL-2000 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
FT232RL-BO 功能描述:界面開發(fā)工具 FT232RL USB to UART Breakout Board RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
FT232RL-R 制造商:Future Technology Devices International Ltd 功能描述:UART, 28 Pin, Plastic, SSOP
FT232RL-REEL 功能描述:USB 接口集成電路 USB to Serial UART Enhanced IC SSOP-28 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(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*