User Manual

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User Manual (1.0.14) EasyVR 3 9
Recommended Operating Conditions
Symbol
Parameter
Min
Typ
Max
Unit
5V
DC Power Input (Host) = V
SEL
3.15
5.0
5.5
V
3V3
3.15
3.3
5.5
V
5V_P
DC Power Input (Programming cable)
4.0
5.0
5.5
V
Ta
Ambient Operating Temperature Range
0
25
70
°C
Power Supply Requirements
Symbol
Parameter
Min
Typ
Max
Unit
I
SLEEP
Sleep current (V
SEL
= 5.0V)
6
mA
I
OPER
Operating current (V
SEL
= 5.0V)
25
35
mA
I
AUDIO
Audio playback current (with 8Ω speaker)
175
250
mA
(RMS)
I
TOT
Total current consumption (excluding I/O)
25
285
mA
(RMS)
I
PEAK
Peak supply current (excluding I/O)
400
mA
Electrical Characteristics
These are applicable to pins RX, TX_P.
Symbol
Parameter
Min
Typ
Max
Unit
V
IH
Input High Voltage
2.1
5.5
V
V
IL
Input Low Voltage
0.0
0.9
V
I
IL
Input Leakage Current (0 < V
I
< 5.5V)
-65
µA
These are applicable to pins TX, DE.
Symbol
Parameter
Min
Typ
Max
Unit
V
OH
Output High Voltage (I
OH
= -0.3 mA, V
SEL
= 3.3V)
2.6
3.3
V
Output High Voltage (I
OH
= -0.3 mA, V
SEL
= 5.0V)
4.3
5.0
V
V
OL
Output Low Voltage (I
OL
= 5 mA)
0.0
0.2
V
These are applicable to pin XM.
Symbol
Parameter
Min
Typ
Max
Unit
V
IH
Input High Voltage
1.4
(0.8)
5.5
V
V
IL
Input Low Voltage
0.0
(0.7)
0.5
V
I
IN
Input Current (0 < V
I
< 3.3V)
0
0.2
0.4
mA
Input Current (0 < V
I
< 5.5V)
0
0.5
0.7
mA
These are applicable to pin RST.
Symbol
Parameter
Min
Typ
Max
Unit
V
IH
Input High Voltage
2.1
5.5
V
V
IL
Input Low Voltage
0.0
0.6
V
I
IL
Input Leakage Current (0 < V
I
< 5.5V)
-85
µA