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Atmel AVR2092
7 Electrical characteristics
7.1 Absolute maximum ratings
Stresses beyond the values listed in Table 7-1 may cause permanent damage to the
board. This is a stress rating only and functional operation of the device at these or
any other conditions beyond those indicated in the operational sections of this manual
are not implied. Exposure to absolute maximum rating conditions for extended
periods may affect device reliability. For more details about these parameters, refer to
individual datasheets of the components used.
Table 7-1. Absolute maximum ratings.
No.
Parameter
Condition
Minimum
Typical
Maximum
Unit
7.1.1
7.1.2
7.1.3
7.1.4
7.1.5
Storage temperature range
Humidity
Supply voltage
EXT I/O pin voltage
Supply current from batteries
Non-condensing
Sum over all power pins
-40
-0.3
-0.3
+85
90
+3.6
Vcc + 0.3
-0.5
°C
% r.H.
V
V
A
7.1.6
Battery charge current
(1)
0
mA
Note:
1. Keep power switch off or remove battery from REB-CBB when external power is supplied.
7.2 Recommended operating range
Table 7-2. Recommended operating range.
No.
7.2.1
7.2.2
7.2.3
7.2.4
Parameter
Operating temperature range
Supply voltage (Vcc)
Condition
Plain REB-CBB
REB plugged on REB-CBB
Serial flash access in usage
Minimum
-20
1.6
1.6
2.3
Typical
3.0
3.0
3.0
Maximum
+70
3.6
3.6
3.6
Unit
°C
V
V
V
7.3 Current consumption
Test conditions (unless otherwise stated):
V DD = 3.0V, T OP = 25°C
Table 7-3 lists current consumption values for typical scenarios of a complete system
composed of REB-CBB and REB232. The Zener diode has been removed as
described above.
Table 7-3. Current consumption of REB-CBB populated with REB232.
No.
Parameter
Condition
Minimum
Typical
Maximum
Unit
MCU @ power down,
7.3.1
Supply current
transceiver in state SLEEP,
17
μA
serial flash in Deep-Sleep
7.3.2
7.3.3
Supply current
Supply current
MCU @ 2MHz,
transceiver in state TRX_OFF
MCU @ 16MHz (int. RC 32MHz),
transceiver in state TRX_OFF
3
15
mA
mA
29
8427A-AVR-10/11
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