6.0
Absolute Maximum Ratings
FT232BQ USB UART ( USB - Serial) I.C.
These are the absolute maximum ratings for the FT232BQ device i
n accordance with the Absolute Maximum Rating System
(IEC 60134).
Exceeding these may cause permanent damage to the device.
Parameter
Storage Temperature
Floor Life (Out of Bag) at Factory Ambient
(30
o
C/60% Relative Humidity)
Ambient Temperature (Power Applied)
M.T.B.F. (at 35
o
C)
VCC Supply Voltage
D.C. Input Voltage - USBDP and USBDM
D.C. Input Voltage - High Impedance Bidirectionals
D.C. Input Voltage - All other Inputs
DC Output Current – Outputs
DC Output Current – Low Impedance Bidirectionals
Power Dissipation (VCC = 5.25V)
Electrostatic Discharge Voltage (Human Body Model) (I < 1uA)
Latch Up Current (Vi = +/- 10V maximum, for 10 ms)
Value
–65
o
C to + 150
o
C
192 Hours (Level 3 Compliant)
**Note 2
0
o
C to + 70
o
C
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
24
500
+/- 3000
+/-200
Units
Degrees C
Degrees C
V
V
V
V
mA
mA
mW
V
mA
**Note 2
– 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 110
o
C and baked for 8 to 10 hours.
6.1
D.C. Characteristics
DC Characteristics ( Ambient Temperature = 0 to 70
o
C )
Operating Voltage and Current
Parameter
Vcc1
Vcc2
Icc1
Icc2
Description
VCC Operating Supply Voltage
VCCIO Operating Supply Voltage
Operating Supply Current
Operating Supply Current
Min
4.35
3.0
-
-
Typ
5.0
-
25
180
Max
5.25
5.25
-
200
Units
V
V
mA
uA
Normal Operation
USB Suspend
**Note 3
Conditions
**Note 3
– Supply current excludes the 200uA nominal drawn by the external pull-up resistor on USBDP.
UART IO Pin Characteristics ( VCCIO = 5.0V )
Parameter
Voh
Vol
Vin
VHys
Description
Output Voltage High
Output Voltage Low
Input Switching Threshold
Input Switching Hysteresis
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
V
V
mV
Conditions
I source = 2mA
I sink = 2mA
**Note 4
DS232BQ Version 1.8
© Future Technology Devices Intl. Ltd. 2005
Page 12 of 25
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