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參數(shù)資料
| 型號(hào)： | FT245BL-REEL |
| 廠商： | FTDI, Future Technology Devices International Ltd |
| 文件頁(yè)數(shù)： | 23/24頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC USB FS PARALLEL FIFO 32-LQFP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 系列： | * |
| 類型： | * |
| 應(yīng)用： | * |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-LQFP |
| 供應(yīng)商設(shè)備封裝： | 32-LQFP（7x7） |
| 包裝： | 帶卷 (TR) |
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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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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:先進(jìn)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(chǔ)容量:4 Mbit 定時(shí)類型:Synchronous 組織:256 K x 18 最大時(shí)鐘頻率:100 MHz 訪問時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| FT245BQ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FT245BQ USB FIFO ( USB - Parallel ) I.C. |
| FT245BQ-REEL | 功能描述:USB 接口集成電路 USB to Parallel FIFO 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(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
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