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参数资料
| 型号： | FT245BL-REEL |
| 厂商： | FTDI, Future Technology Devices International Ltd |
| 文件页数： | 23/24页 |
| 文件大小： | 0K |
| 描述： | IC USB FS PARALLEL FIFO 32-LQFP |
| 标准包装： | 1,000 |
| 系列： | * |
| 类型： | * |
| 应用： | * |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-LQFP |
| 供应商设备封装： | 32-LQFP（7x7） |
| 包装： | 带卷 (TR) |
DS245BL Version 1.7
Future Technology Devices Intl. Ltd. 2005
Page 8 of 24
FT245BL USB FIFO ( USB - Parallel ) I.C.
4.1 Signal Descriptions
Table 1 - FT245BL - PINOUT DESCRIPTION
FIFO DATA BUS GROUP (*** Note 1)
Pin#
Signal
Type
Description
25
DO
I/O
FIFO Data Bus Bit 0
24
D1
I/O
FIFO Data Bus Bit 1
23
D2
I/O
FIFO Data Bus Bit 2
22
D3
I/O
FIFO Data Bus Bit 3
21
D4
I/O
FIFO Data Bus Bit 4
20
D5
I/O
FIFO Data Bus Bit 5
19
D6
I/O
FIFO Data Bus Bit 6
18
D7
I/O
FIFO Data Bus Bit 7
FIFO CONTROL INTERFACE GROUP
Pin#
Signal
Type
Description
16
RD#
IN
Enables Current FIFO Data Byte on D0..D7 when low. Fetches the next FIFO
Data Byte (if available) from the Receive FIFO Buffer when RD# goes from low
to high. ***
Note 1
15
WR
IN
Writes the Data Byte on the D0..D7 into the Transmit FIFO Buffer when WR goes
from high to low. ***
Note 1
14
TXE#
OUT
When high, do not write data into the FIFO. When low, data can be written into
the FIFO by strobing WR high then low. ***
Note 2
12
RXF#
OUT
When high, do not read data from the FIFO. When low, there is data available in
the FIFO which can be read by strobing RD# low then high again ***
Note 2
USB INTERFACE GROUP
Pin#
Signal
Type
Description
7
USBDP
I/O
USB Data Signal Plus (Requires 1.5K pull-up to 3V3OUT or RSTOUT#)
8
USBDM
I/O
USB Data Signal Minus
EEPROM INTERFACE GROUP
Pin#
Signal
Type
Description
32
EECS
I/O
EEPROM – Chip Select. For 48MHz operation pull EECS to GND using a 10K
resistor. For 6MHz operation no resistor is required. ***
Note 3
1
EESK
OUT
Clock signal to EEPROM. Adding a 10K pull down resistor onto EESK will cause
the FT245BL to use USB Product ID 6005 (hex) instead of 6001 (hex). All of the
other USB device descriptors are unchanged. ***
Note 3
2
EEDATA
I/O
EEPROM – Data I/O Connect directly to Data-In of the EEPROM and to Data-
Out of the EEPROM via a 2.2K resistor. Also pull Data-Out of the EEPROM to
VCC via a 10K resistor for correct operation. ***
Note 3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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:先进先出 Obsolete See FT245RL RoHS:否 制造商:IDT 电路数量: 数据总线宽度:18 bit 总线定向:Unidirectional 存储容量:4 Mbit 定时类型:Synchronous 组织:256 K x 18 最大时钟频率:100 MHz 访问时间:10 ns 电源电压-最大:3.6 V 电源电压-最小:6 V 最大工作电流:35 mA 最大工作温度:+ 85 C 封装 / 箱体:TQFP-80 封装: |
| FT245BM-TRAY | 功能描述:USB 接口集成电路 Obsolete See FT245RL RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
| FT245BQ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:FT245BQ USB FIFO ( USB - Parallel ) I.C. |
| FT245BQ-REEL | 功能描述:USB 接口集成电路 USB to Parallel FIFO IC QFN-32 RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
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