5秒后页面跳转
FT245B PDF预览

FT245B

更新时间: 2024-02-17 05:31:44
品牌 Logo 应用领域
飞特帝亚 - FTDI 先进先出芯片电子驱动电话
页数 文件大小 规格书
24页 541K
描述
上海格里电子科技有限公司是英国FTDI在中国大陆东南亚地区最大的代理商, FTDI一贯坚持USB make easy思想,为工程师提供最简便的解决方案 上海格里电子科技有限公司是英国FTDI在中国大陆东南亚地区最大的代理商, FTDI一贯坚持USB make easy思想,为工程师提供最简便的解决方案: *VNC2 实现UART、FIFO、IIC、SPI、JTAG转到USB HOST接口,可与其他USB DEVICE设备通讯。FTDI提供简单操作命令,工程师只需调用驱动中相应函数,便可实 现对USB device的控制。 *FT232实现单路USB转到UART,包括TTL,及RS485、RS422、RS232等接口。 *FT245实现单路USB转到FIFO,最高能实现8Mbit/s传输速率。 *FT2232H 实现单USB接口转到2通道芯片,每通道可分别配置成UART、FIFO、IIC、 SPI、JTAG等接口。当配置成2路并行FIFO时,每路最大速率达到10MByte/s;当配 置成单路串行FIFO时,可实现最高25MByte/s速率。 *FT4232H实现单USB接口转4通道芯片,每通道可分别配置成UART、IIC、SPI、 JTAG。主要应用在SOC、CPU进行多串口扩展,典型产品为车载多媒体娱乐设备和各 类自主终端。 与同类功能芯片相比,FTDI产品最大优势在于其高品质与高稳定性,主要表现在低坏片率(小于万分之一)、超长时间通讯不中断、不重启,以及驱动的稳定性和驱动的兼容性。FTDI提供免费驱动,经过微软官方认证,支持window98至最新的windows7所有windows系列操作系统,并支持MAC OS、windows mobile、Linux等平台,对于其他平台的驱动,FTDI可提供底层代码以便工程师开发使用。 联 系 人: 何贵平(Gary) 联系电话: 021-64414999 64389812-809 手 机:13661631714 电子邮件: gary@gelitek.com 公司名称: 上海格里电子科技有限公司 公司网站:www.gelitek.com 地 址:上海市徐汇区蒲汇塘路11号1505-1506室

FT245B 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:,Reach Compliance Code:compliant
风险等级:5.81Base Number Matches:1

FT245B 数据手册

 浏览型号FT245B的Datasheet PDF文件第1页浏览型号FT245B的Datasheet PDF文件第2页浏览型号FT245B的Datasheet PDF文件第3页浏览型号FT245B的Datasheet PDF文件第5页浏览型号FT245B的Datasheet PDF文件第6页浏览型号FT245B的Datasheet PDF文件第7页 
FT245BL USB FIFO ( USB - Parallel ) I.C.  
Multiple Device Support without EEPROM  
When no EEPROM (or a blank or invalid  
The FPGA based hardware can be easily upgraded  
or totally changed simply by changing the FPGA  
configuration data file. Application notes, software  
and development modules for this application area  
will be available from FTDI and other 3rd party  
developers.  
EEPROM) is attached to the device, the FT245BL  
no longer gives a serial number as part of its  
USB descriptor. This allows multiple devices to  
be simultaneously connected to the same PC.  
However, we still highly recommend that EEPROM  
is used, as without serial numbers a device can  
only be identified by which hub port in the USB tree  
it is connected to which can change if the end user  
re-plugs the device into a different USB port.  
Less External Support Components  
As well as eliminating the RCCLK RC network, and  
for most applications the need for an external reset  
circuit, we have also eliminated the requirement  
for a 100K pull-up on EECS to select 6MHz  
operation. When the FT245BL is being used  
without the configuration EEPROM, EECS, EESK  
and EEDATA can now be left n/c. For circuits  
requiring a long reset time (where the device is  
reset externally using a reset generator I.C., or  
reset is controlled by the IO port of a MCU, FPGA  
or ASIC device) an external transistor circuit is  
no longer required as the 1.5K pull-up resistor on  
USBDP can be wired to the RSTOUT# pin instead  
of to 3.3V. Note : RSTOUT# drives out at 3.3V  
level, not at 5V VCC level. This is the preferred  
configuration for new designs.  
EEREQ# / EEGNT#  
These (FT8U245AM) pins are no longer supported  
on the FT245BL device. They have been replaced  
with the new SI / WU and PWREN# signals  
respectively.  
Extended EEPROM Support  
The previous generation of devices only supported  
EEPROM of type 93C46 (64 x 16 bit). The new  
devices will also work with EEPROM type 93C56  
(128 x 16 bit) and 93C66 (256 x 16 bit). The extra  
space is not used by the device, however it is  
available for use by other external MCU / logic  
whilst the FT245BL is being held in reset.  
USB 2.0 ( full speed option )  
A new EEPROM based option allows the FT245BL  
to return a USB 2.0 device descriptor as opposed  
to USB 1.1. Note : The device would be a USB 2.0  
Full Speed device (12Mb/s) as opposed to a USB  
2.0 High Speed device (480Mb/s).  
DS245BL Version 1.7  
© Future Technology Devices Intl. Ltd. 2005  
Page 4 of 24  

与FT245B相关器件

型号 品牌 描述 获取价格 数据表
FT245BL FTDI USB FIFO ( USB - Parallel ) I.C.

获取价格

FT245BM FTDI USB FIFO ( USB - Parallel ) I.C.

获取价格

FT245BQ FTDI USB FIFO ( USB - Parallel ) I.C.

获取价格

FT245R FTDI USB FIFO I.C. Incorporating FTDIChip-ID⑩ Secu

获取价格

FT245R_10 FTDI USB FIFO IC - Single chip USB to parallel FIFO bidirectional data transfer interface

获取价格

FT245RL FTDI Bit Bang Modes for the FT232R and FT245R

获取价格