參數(shù)資料
型號(hào)： FT232HL-REEL
廠商： FTDI, Future Technology Devices International Ltd
文件頁數(shù)： 11/65頁
文件大?。?/td> 0K
描述： IC HS USB TO UART/FIFO 48LQFP
應(yīng)用說明： FT1248 Application Note
標(biāo)準(zhǔn)包裝： 1
通道數(shù)： 1，UART
FIFO's： 4kb
規(guī)程： RS232，RS422，RS485
電源電壓： 1.62 V ~ 1.98 V，2.97 V ~ 3.63 V
帶并行端口： 是
帶故障啟動(dòng)位檢測(cè)功能： 是
帶調(diào)制解調(diào)器控制功能： 是
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-LQFP（7x7）
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： 768-1101-6
Copyright 2012 Future Technology Devices International Limited
19
Document No.: FT_000288
FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC
Datasheet Version 1.8
Clearance No.: FTDI #199
3.5.6 FT232H Pins used as a Fast Serial Interface
The FT232H can be configured for use with high-speed bi-directional isolated serial data. A proprietary
FTDI protocol designed to allow galvanic isolated devices to communicate synchronously with the FT232H
using just 4 signal wires (over two dual opto-isolators), and two power lines. The peripheral circuitry
controls the data transfer rate in both directions, whilst maintaining full data integrity. 12 Mbps (USB full
speed) data rates can be achieved when using the proper high speed opto-isolators (see App Note AN-
When configured in this mode, the pins used and the descriptions of the signals are shown in Table 3.11.
Pin No.
Name
Type
Fast Serial Interface Configuration
Description
13
FSDI
INPUT
Fast serial data input.
14
FSCLK
INPUT
Fast serial clock input.
Clock input to FT232H chip to clock data in or out.
15
FSDO
OUTPUT
Fast serial data output.
16
FSCTS
OUTPUT
Fast serial Clear To Send signal output.
Driven low to indicate that the chip is ready to send
data
28
SIWU#
INPUT
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 RX 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 optimize USB transfer speed for some
applications. Tie this pin to VCCIO if not used.
Table 3.11 Fast Serial Interface Configured Pin Descriptions
For a functional description of this mode, please refer to section 4.9
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