User's Manual

24
AVR2043
8345A-AVR-11/10
7 Electrical characteristics
7.1 Absolute maximum ratings
Stresses beyond those listed under “Absolute Maximum Ratings” 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 Units
7.1.1 Storage temperature range -40 +85 °C
7.1.2 Humidity Non-condensing 90 %
7.1.3 Supply voltage -0.3 +3.6 V
7.1.4 EXT I/O pin voltage -0.3 Vcc + 0.3 V
7.1.5 Supply current from batteries Sum over all power pins -0.5 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. Parameter Condition Minimum Typical Maximum Units
7.2.1 Operating temperature range -20 +70 °C
7.2.2 Plain REB-CBB 1.6 3.0 3.6 V
7.2.3 REB plugged on REB-CBB 1.8 3.0 3.6 V
7.2.4
Supply voltage (Vcc)
Serial flash access in usage 2.3 3.0 3.6 V
7.3 Current consumption
Test conditions (unless otherwise stated):
V
DD
= 3.0V, T
OP
= 25°C
Table 7-3 li
sts current consumption values for typical scenarios of a complete system
composed of REB-CBB and REB231. The Zener diode has been removed as
described above.
Table 7-3. Current consumption of REB-CBB populated with REB231.
No. Parameter Condition Minimum Typical Maximum Units
7.3.1 Supply current
MCU @ power down,
transceiver in state SLEEP,
serial flash in Deep-Sleep
17 µA
7.3.2 Supply current
MCU @ 2MHz,
transceiver in state TRX_OFF
3 mA
7.3.3 Supply current
MCU @ 16MHz (int. RC 32MHz),
transceiver in state TRX_OFF
15 mA