Texas Instruments Chipcon CC2430DB, User Manual

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