參數(shù)資料
型號(hào)： FT232R
廠商： Electronic Theatre Controls, Inc.
英文描述： Incorporating Clock Generator Output and FTDIChip-ID Security Dongle
中文描述： 納入時(shí)鐘發(fā)生器輸出和FTDIChip標(biāo)識(shí)安全適配器
文件頁數(shù)： 16/29頁
文件大?。?/td> 471K
代理商： FT232R
FT232R USB UART I.C. Datasheet Version 1.04
Future Technology Devices International Ltd. 2005
Page 16
6. Device Characteristics and Ratings
6.1 Absolute Maximum Ratings
The absolute maximum ratings for the FT232R devices are as follows. These are in accordance with the Absolute
Maximum Rating System (IEC 60134). Exceeding these may cause permanent damage to the device.
Table 5 - Absolute Maximum Ratings
Parameter
Storage Temperature
Value
-65°C to 150°C
Unit
Degrees C
Floor Life (Out of Bag) At Factory Ambient
( 30°C / 60% Relative Humidity)
168 Hours
(IPC/JEDEC J-STD-033A MSL
Level 3 Compliant)*
Hours
Ambient Temperature (Power Applied)
-40°C to 85°C
Degrees C.
Vcc Supply Voltage
-0.5 to +6.00
V
D.C. Input Voltage - USBDP and USBDM
-0.5 to +3.8
V
D.C. Input Voltage - High Impedance Bidirectionals
-0.5 to +(Vcc +0.5)
V
D.C. Input Voltage - All other Inputs
-0.5 to +(Vcc +0.5)
V
D.C. Output Current - Outputs
24
mA
DC Output Current - Low Impedance Bidirectionals
24
mA
Power Dissipation (Vcc = 5.25V)
500
mW
* If devices are stored out of the packaging beyond this time limit the devices should be baked before use. The
devices should be ramped up to a temperature of 125
°
C and baked for up to 17 hours.
6.2 DC Characteristics
DC Characteristics ( Ambient Temperature = -40
o
C to +85
o
C )
Table 6 - Operating Voltage and Current
Parameter
Description
Min
Typ
Max
Units
Conditions
Vcc1
VCC Operating Supply Voltage
3.3
-
5.25
V
Vcc2
VCCIO Operating Supply Voltage
1.8
-
5.25
V
Icc1
Operating Supply Current
-
15
-
mA
Normal Operation
Icc2
Operating Supply Current
50
70
100
μ
A
USB Suspend
Table 7 - UART and CBUS I/O Pin Characteristics (VCCIO = 5.0V, Standard Drive Level)
Parameter
Description
Min
Typ
Max
Units
Conditions
Voh
Output Voltage High
3.2
4.1
4.9
V
I source = 2mA
Vol
Output Voltage Low
0.3
0.4
0.6
V
I sink = 2mA
Vin
Input Switching Threshold
1.3
1.6
1.9
V
**
VHys
Input Switching Hysteresis
50
55
60
mV
**
Table 8 - UART and CBUS I/O Pin Characteristics (VCCIO = 3.3V, Standard Drive Level)
Parameter
Description
Min
Typ
Max
Units
Conditions
Voh
Output Voltage High
2.2
2.7
3.2
V
I source = 1mA
Vol
Output Voltage Low
0.3
0.4
0.5
V
I sink = 2mA
Vin
Input Switching Threshold
1.0
1.2
1.5
V
**
VHys
Input Switching Hysteresis
20
25
30
mV
**
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