參數(shù)資料
型號(hào): FT232RQ
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(yè)數(shù): 17/29頁(yè)
文件大?。?/td> 471K
代理商: FT232RQ
FT232R USB UART I.C. Datasheet Version 1.04
Future Technology Devices International Ltd. 2005
Page 17
Table 9 - UART and CBUS I/O Pin Characteristics (VCCIO = 2.8V, Standard Drive Level)
Parameter
Description
Min
Typ
Max
Units
Conditions
Voh
Output Voltage High
2.1
2.6
3.1
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
**
Table 10 - UART and CBUS I/O Pin Characteristics (VCCIO = 5.0V, High Drive Level)
Parameter
Description
Min
Typ
Max
Units
Conditions
Voh
Output Voltage High
3.2
4.1
4.9
V
I source = 6mA
Vol
Output Voltage Low
0.3
0.4
0.6
V
I sink = 6mA
Vin
Input Switching Threshold
1.3
1.6
1.9
V
**
VHys
Input Switching Hysteresis
50
55
60
mV
**
Table 11 - UART and CBUS I/O Pin Characteristics (VCCIO = 3.3V, High Drive Level)
Parameter
Description
Min
Typ
Max
Units
Conditions
Voh
Output Voltage High
2.2
2.8
3.2
V
I source = 3mA
Vol
Output Voltage Low
0.3
0.4
0.6
V
I sink = 8mA
Vin
Input Switching Threshold
1.0
1.2
1.5
V
**
VHys
Input Switching Hysteresis
20
25
30
mV
**
Table 12 - UART and CBUS I/O Pin Characteristics (VCCIO = 2.8V, High Drive Level)
Parameter
Description
Min
Typ
Max
Units
Conditions
Voh
Output Voltage High
2.1
2.8
3.2
V
I source = 3mA
Vol
Output Voltage Low
0.3
0.4
0.6
V
I sink = 8mA
Vin
Input Switching Threshold
1.0
1.2
1.5
V
**
VHys
Input Switching Hysteresis
20
25
30
mV
**
**Inputs have an internal 200k pull-up resistor to VCCIO.
Table 13 - RESET# and TEST Pin Characteristics
Parameter
Description
Min
Typ
Max
Units
Conditions
Vin
Input Switching Threshold
1.3
1.6
1.9
V
VHys
Input Switching Hysteresis
50
55
60
mV
Table 14 - USB I/O Pin (USBDP, USBDM) Characteristics
Parameter
Description
Min
Typ
Max
Units
Conditions
UVoh
I/O Pins Static Output ( High)
2.8
3.6
V
RI = 1.5k to 3V3Out ( D+ )
RI = 15k to GND ( D- )
UVol
I/O Pins Static Output ( Low )
0
0.3
V
RI = 1.5k to 3V3Out ( D+ )
RI = 15k to GND ( D- )
UVse
Single Ended Rx Threshold
0.8
2.0
V
UCom
Differential Common Mode
0.8
2.5
V
UVDif
Differential Input Sensitivity
0.2
V
UDrvZ
Driver Output Impedance
26
29
44
Ohms
***
***Driver Output Impedance includes the internal USB series resistors on USBDP and USBDM pins.
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