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Device
CC2430
EEPROM
Accelerometer
Potentiometer
Light sensor
LEDs
Total
To accurately measure the current consumption of the chip the jumpers listed in Table 5
should be removed.
Header
Pin
Description
Replace with ampere meter to measure
P3
1-2
current consumption of CC2430
SW controlled power. Can be removed
P3
3-4
when performing current measurement to
reduce leakage current
Connects RESET_N signal between USB
MCU and CC2430. Can be removed when
P5
5-6
performing current measurement to reduce
leakage current
Table 5: Jumper setting for low power measurements
In order to achieve lowest possible current consumption, the I/O ports of the CC2430 should
be configured as listed in Power down state in Table 6 below.
2430
Schematic
Name
pin
Name
11
P0_0
P0_0/LDR
P0_1/BUTTON
12
P0_1
PUSH
13
P0_2
P0_2/EE_SDA
14
P0_3
P0_3/EE_SCL
15
P0_4
P0_4/ACC_X
16
P0_5
P0_5/ACC_Y
17
P0_6
P0_6/JOY
18
P0_7
P0_7/POT
9
P1_0
P1_0/LED1
8
P1_1
P1_1/LED2
2
Active state means that Software controlled VDD is on, this should only be enabled when
required by an I/O module
Active mode (mA)
Typical
Max
7,2
27
1
3
0,49
0,33
0,001
0.015
24
9mA
54mA
Table 4: Current consumption summary
Description
Light dependent resistor
analog input
Push button interrupt active
low
EEPROM SDA
EEPROM SCL
Accelerometer x-axis
Accelerometer y-axis
Joystick analog signal
Potentiometer analog input
Green LED
Red LED
SWRU125
Power down mode (µA)
32KHz
Sleep
1µA
0.3µA
0
0
0
0
0
1µA
Low power setting
Mounted, or connect ampere
meter
Not mounted
Not mounted
Power
Active
down
2
state
state
IN
OUT
ANALOG
LOW
IN PULL-
IN
UP
OUT
OUT
HIGH
LOW
OUT
OUT
HIGH
LOW
IN
OUT
ANALOG
LOW
IN
OUT
ANALOG
LOW
IN
OUT
ANALOG
LOW
IN
OUT
ANALOG
LOW
OUT
OUT
HIGH
HIGH
OUT
OUT
HIGH
HIGH
Page 12
0Ω ohm
resistor
R506
R505
R504
R507
R508
R416
R430
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