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FT245BL 参数 Datasheet PDF下载

FT245BL图片预览
型号: FT245BL
PDF下载: 下载PDF文件 查看货源
内容描述: USB FIFO ( USB - 并行) I.C. [USB FIFO ( USB - Parallel ) I.C.]
分类和应用: 外围集成电路先进先出芯片PC
文件页数/大小: 24 页 / 541 K
品牌: FTDI [ FUTURE TECHNOLOGY DEVICES INTERNATIONAL LTD. ]
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FT245BL USB FIFO ( USB - Parallel ) I.C.  
6.0 Absolute Maximum Ratings  
These are the absolute maximum ratings for the FT245BL device in accordance with the Absolute Maximum Rating System  
(IEC 60134). Exceeding these may cause permanent damage to the device.  
Parameter  
Value  
Units  
Storage Temperature  
–65oC to + 150oC  
Degrees C  
Floor Life (Out of Bag) at Factory Ambient  
(30oC/60% Relative Humidity)  
192 Hours (Level 3 Compliant)  
**Note 5  
Ambient Temperature (Power Applied)  
M.T.B.F. (at 35oC)  
0oC to + 70oC  
247484 Hours ≈ 28 Years  
-0.5 to +6.00  
-0.5 to +3.8  
-0.5 to +(Vcc +0.5)  
-0.5 to +(Vcc +0.5)  
24  
Degrees C  
VCC Supply Voltage  
V
V
D.C. Input Voltage - USBDP and USBDM  
D.C. Input Voltage - High Impedance Bidirectionals  
D.C. Input Voltage - All other Inputs  
V
V
DC Output Current – Outputs  
mA  
mA  
mW  
V
DC Output Current – Low Impedance Bidirectionals  
Power Dissipation (VCC = 5.25V)  
24  
500  
Electrostatic Discharge Voltage (Human Body Model) (I < 1uA)  
Latch Up Current (Vi = +/- 10V maximum, for 10 ms)  
+/- 3000  
+/-200  
mA  
*** Note 5 - 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 110oC and baked for 8 to 10 hours.  
6.1 D.C. Characteristics  
DC Characteristics ( Ambient Temperature = 0 to 70oC )  
Operating Voltage and Current  
Parameter Description  
Min  
4.35  
3.0  
-
Typ  
5.0  
-
Max  
5.25  
5.25  
-
Units  
V
Conditions  
Vcc1  
Vcc2  
Icc1  
Icc2  
VCC Operating Supply Voltage  
VCCIO Operating Supply Voltage  
Operating Supply Current  
V
25  
mA  
uA  
Normal Operation  
Operating Supply Current  
-
100  
200  
USB Suspend *** Note 6  
***Note 6 – Supply current excludes the 200uA nominal drawn by the external pull-up resistor on USBDP.  
FIFO Data / Control Bus IO Pin Characteristics ( VCCIO = 5.0V )  
Parameter Description  
Min  
3.2  
0.3  
1.3  
50  
Typ  
4.1  
0.4  
1.6  
55  
Max  
4.9  
0.6  
1.9  
60  
Units  
V
Conditions  
I source = 2mA  
I sink = 2 mA  
*** Note 7  
Voh  
Vol  
Output Voltage High  
Output Voltage Low  
V
Vin  
Input Switching Threshold  
Input Switching Hysteresis  
V
VHys  
mV  
DS245BL Version 1.7  
© Future Technology Devices Intl. Ltd. 2005  
Page 13 of 24  
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