參數(shù)資料
型號: FT2232H MINI MODULE
廠商: FTDI, Future Technology Devices International Ltd
文件頁數(shù): 51/67頁
文件大?。?/td> 0K
描述: MOD USB HS FT2232H EVAL
產(chǎn)品變化通告: Part Number Change Jan 2011
產(chǎn)品目錄繪圖: FT(22, 42)32HQ MINI MOD
標準包裝: 5
主要目的: 接口,USB 2.0 至 UART、JTAG、SPI、I2C
嵌入式:
已用 IC / 零件: FT2232H
主要屬性: 高速,異步串行數(shù)據(jù),300 波特 ~ 12 Mbaud,TTL 級
次要屬性: JTAG、SPI 和 I2C 上同步串行(MPSSE)數(shù)據(jù)傳輸速度高達 30Mbps
已供物品:
產(chǎn)品目錄頁面: 633 (CN2011-ZH PDF)
相關產(chǎn)品: 768-1010-6-ND - IC USB FS DUAL UART/FIFO 48-LQFP
768-1010-1-ND - IC USB FS DUAL UART/FIFO 48-LQFP
768-1010-2-ND - IC USB FS DUAL UART/FIFO 48-LQFP
其它名稱: 768-1030
FT2232HQ_MINI MOD
Copyright 2012 Future Technology Devices International Limited
55
Document No.: FT_000061
FT2232H DUAL HIGH SPEED USB TO MULTIPURPOSE UART/FIFO IC
Version 2.21
Clearance No.: FTDI#77
6.3 Oscillator Configuration
OSCI
OSCO
2
3
FT2232H
Crystal
12MHz
27pF
Figure 6.5 Recommended FT2232H Crystal Oscillator Configuration.
Figure 6.5 illustrates how to connect the FT2232H with a 12MHz ± 0.003% crystal. In this case loading
capacitors should to be added between OSCI, OSCO and GND as shown. A value of 27pF is shown as the
capacitor in the example – this will be good for many crystals but it is recommended to select the loading
capacitor value based on the manufacturers recommendations wherever possible. It is recommended to
use a parallel cut type crystal.
It is also possible to use a 12 MHz Oscillator with the FT2232H. In this case the output of the oscillator
would drive OSCI, and OSCO should be left unconnected. The oscillator must have a CMOS output drive
capability.
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
OSCI Vin
Input Voltage
2.97
3.30
3.63
V
FIn
Input Frequency
12
MHz
+/- 30ppm
Ji
Cycle to cycle jitter
< 150
pS
Table 6.1 OSCI Input characteristics
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