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FT905 Datasheet(PDF) 40 Page - Future Technology Devices International Ltd.

Part # FT905
Description  The FT905 series contains FT905, FT906, FT907 and FT908 which is a complete System-On-Chip 32-bit RISC microcontroller for embedded applications featuring a high level of integration and low power consumption.
PDF  56 Pages
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Manufacturer  FTDI [Future Technology Devices International Ltd.]
Direct Link  http://www.ftdichip.com
Logo FTDI - Future Technology Devices International Ltd.

FT905 Datasheet(HTML) 40 Page - Future Technology Devices International Ltd.

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Copyright © 2014 Future Technology Devices International Limited
40
FT905
_6_7_8/6/7/8 Embedded Microcontroller Datasheet
Version 1.0
Document No.: FT_001131 Clearance No.: FTDI#422
5.3 AC Characteristics
AC Characteristics (Ambient Temperature = -40°C to +85°C)
System clock dynamic characteristics
Parameter
Value
Unit
Minimum
Typical
Maximum
Crystal oscillator
Clock frequency
-
12.00
-
MHz
External clock input
external clock
jitter
-
-
500
ps
clock duty cycle
45
50
55
%
Input voltage on
pin XI/CLKIN
-
3.3
-
V
Table 5-9 System clock characteristics
Note: Recommended accuracy of the clock frequency is 50ppm for the crystal.
RTC clock dynamic characteristics
Parameter
Value
Unit
Minimum
Typical
Maximum
Crystal oscillator
Clock frequency
-
32768
-
Hz
External clock input
external clock jitter
-
-
500
ps
clock duty cycle
45
50
55
%
Startup time
-
0.5
5
s
Input voltage on pin
RTC_XI/RTC_CLKIN
-
1.2
-
V
Table 5-10 RTC clock characteristics
Analog USB I/O pins dynamic characteristics
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
Driver characteristic for high speed
Thsr
High speed differential
rise time
500
-
-
ps
-



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