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參數(shù)資料
| 型號： | FT245BL |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | FT245BL USB FIFO ( USB - Parallel ) I.C. |
| 中文描述： | FT245BL USB先進先出（USB端口-并行）集成電路 |
| 文件頁數(shù)： | 9/24頁 |
| 文件大?。?/td> | 505K |
| 代理商： | FT245BL |
DS245BL Version 1.6 Future Technology Devices Intl. Ltd. 2005
Page 9 of 24
FT245BL USB FIFO ( USB - Parallel ) I.C.
POWER CONTROL GROUP
Pin#
Signal
10
PWREN#
Type
OUT
Description
Goes Low after the device is configured via USB, then high during USB suspend.
Can be used to control power to external logic using a P-Channel Logic Level
MOSFET switch. Enable the Interface Pull-Down Option in EEPROM when using
the PWREN# pin in this way.
The Send Immediate / WakeUp signal combines two functions on a single pin. If
USB is in suspend mode (PWREN# = 1) and remote wakeup is enabled in the
EEPROM , strobing this pin low will cause the device to request a resume on the
USB Bus. Normally, this can be used to wake up the Host PC.
During normal operation (PWREN# = 0), if this pin is strobed low any data in the
device TX buffer will be sent out over USB on the next Bulk-IN request from the
drivers regardless of the pending packet size. This can be used to optimise USB
transfer speed for some applications. Tie this pin to VCCIO if not used.
11
SI / WU
IN
MISCELLANEOUS SIGNAL GROUP
Pin#
Signal
4
RESET#
Type
IN
Description
Can be used by an external device to reset the FT245BL. If not required, tie to
VCC.
Output of the internal Reset Generator. Stays high impedance for ~ 5ms after
VCC > 3.5V and the internal clock starts up, then clamps its output to the 3.3V
output of the internal regulator. Taking RESET# low will also force RSTOUT# to
drive low. RSTOUT# is NOT affected by a USB Bus Reset.
Input to 6MHz Crystal Oscillator Cell. This pin can also be driven by an external
6MHz clock if required. Note : Switching threshold of this pin is VCC/2, so if
driving from an external source, the source must be driving at 5V CMOS level or
a.c. coupled to centre around VCC/2.
Output from 6MHz Crystal Oscillator Cell. XTOUT stops oscillating during USB
suspend, so take care if using this signal to clock external logic.
Puts device in I.C. test mode – must be tied to GND for normal operation.
5
RSTOUT#
OUT
27
XTIN
IN
28
XTOUT
OUT
31
TEST
IN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| FT245BM | FT245BM USB FIFO ( USB - Parallel ) I.C. |
| FT245BQ | FT245BQ USB FIFO ( USB - Parallel ) I.C. |
| FT6116 | 2K X 8 CMOS SRAM |
| FT8U100AX | FT8U100AX USB Compound Hub Controller |
| FTD1011 | Ultrahigh-Speed Switching Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FT245BL/TR | 制造商:Future Technology Devices International (FTDI Chip) 功能描述:IC USB FIFO SMD LQFP32 245 制造商:Future Technology Devices International (FTDI Chip) 功能描述:IC, USB FIFO, SMD, LQFP32, 245 制造商:Future Technology Devices International (FTDI Chip) 功能描述:IC, USB FIFO INTERFACE, 480MBPS, LQFP-32; USB Type:FIFO; USB Version:1.1, 2.0; Supply Voltage Min:4.35V; Supply Voltage Max:5.25V; Digital IC Case Style:LQFP; No. of Pins:32; Data Rate:480Mbps; No. of Ports:2; MSL:MSL 3 - 168 hours ;RoHS Compliant: Yes |
| FT245BL-REEL | 功能描述:USB 接口集成電路 USB to Parallel FIFO IC LQFP-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 |
| FT245BL-TRAY | 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB FIFO ( USB - PARALLEL ) I.C. |
| FT245BM | 功能描述:先進先出 Obsolete See FT245RL RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線寬度:18 bit 總線定向:Unidirectional 存儲容量:4 Mbit 定時類型:Synchronous 組織:256 K x 18 最大時鐘頻率:100 MHz 訪問時間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝: |
| FT245BM-TRAY | 功能描述:USB 接口集成電路 Obsolete See FT245RL 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 |
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